Commit Graph

5153 Commits

Author SHA1 Message Date
Botond Dénes
7ce932ce01 service: query_pager: fix last-position for filtering queries
On short-pages, cut short because of a tombstone prefix.
When page-results are filtered and the filter drops some rows, the
last-position is taken from the page visitor, which does the filtering.
This means that last partition and row position will be that of the last
row the filter saw. This will not match the last position of the
replica, when the replica cut the page due to tombstones.
When fetching the next page, this means that all the tombstone suffix of
the last page, will be re-fetched. Worse still: the last position of the
next page will not match that of the saved reader left on the replica, so
the saved reader will be dropped and a new one created from scratch.
This wasted work will show up as elevated tail latencies.
Fix by always taking the last position from raw query results.

Fixes: #22620

Closes scylladb/scylladb#22622
2025-02-05 17:23:30 +02:00
Ferenc Szili
a59618e83d truncate: create session during request handling
Currently, the session ID under which the truncate for tablets request is
running is created during the request creation and queuing. This is a problem
because this could overwrite the session ID of any ongoing operation on
system.topology#session

This change moves the creation of the session ID for truncate from the request
creation to the request handling.

Fixes #22613

Closes scylladb/scylladb#22615
2025-02-04 22:11:24 +01:00
Aleksandra Martyniuk
683176d3db tasks: add shard, start_time, and end_time to task_stats
task_stats contains short info about a task. To get a list of task_stats
in the module, one needs to request /task_manager/list_module_tasks/{module}.

To make identification and navigation between tasks easier, extend
task_stats to contain shard, start_time, and end_time.

Closes scylladb/scylladb#22351
2025-02-04 12:11:24 +02:00
Botond Dénes
8c8db2052e Merge 'service: add child for tablet repair virtual task' from Aleksandra Martyniuk
tablet_repair_task_impl is run as a part of tablet repair. Make it
a child of tablet repair virtual task.

tablet_repair_task_impl started by /storage_service/repair_async API
(vnode repair) does not have a parent, as it is the top-level task
in that case.

No backport needed; new functionality

Closes scylladb/scylladb#22372

* github.com:scylladb/scylladb:
  test: add test to check tablet repair child
  service: add child for tablet repair virtual task
2025-02-04 12:08:24 +02:00
Aleksandra Martyniuk
610a761ca2 service: use read barrier in tablet_virtual_task::contains
Currently, when the tablet repair is started, info regarding
the operation is kept in the system.tablets. The new tablet states
are reflected in memory after load_topology_state is called.
Before that, the data in the table and the memory aren't consistent.

To check the supported operations, tablet_virtual_task uses in-memory
tablet_metadata. Hence, it may not see the operation, even though
its info is already kept in system.tablets table.

Run read barrier in tablet_virtual_task::contains to ensure it will
see the latest data. Add a test to check it.

Fixes: #21975.

Closes scylladb/scylladb#21995
2025-02-04 12:07:42 +02:00
Aleksandra Martyniuk
c23ce40f50 service: add child for tablet repair virtual task
tablet_repair_task_impl is run as a part of tablet repair. Make it
a child of tablet repair virtual task.

tablet_repair_task_impl started by /storage_service/repair_async API
(vnode repair) does not have a parent, as it is the top-level task
in that case.
2025-02-03 10:31:14 +01:00
Botond Dénes
98fdf05b0e Merge 'Fix repair vs storage services initialization order' from Pavel Emelyanov
Repair service is started after storage service, while storage service needs to reference repair one for its needs. Recently it was noticed, that this reverse order may cause troubles and was fixed with the help of an extra gate. That's not nice and makes the start-stop mess even worse. The correct fix is to fix the order both services start/stop in.

Closes scylladb/scylladb#22368

* github.com:scylladb/scylladb:
  Revert "repair: add repair_service gate"
  main: Start repair before storage service
  repair: Check for sharded<view-builder> when constructing row_level_repair
2025-01-30 11:26:24 +02:00
Kamil Braun
add97ccc15 Merge 'Do not update topology on address change' from Gleb Natapov
Since now topology does not contain ip addresses there is no need to
create topology on an ip address change. Only peers table has to be
updated. The series factors out peers table update code from
sync_raft_topology_nodes() and calls it on topology and ip address
updates. As a side effect it fixes #22293 since now topology loading
does not require IP do be present, so the assert that is triggered in
this bug is removed.

Fixes: scylladb/scylladb#22293

Closes scylladb/scylladb#22519

* github.com:scylladb/scylladb:
  topology coordinator: do not update topology on address change
  topology coordinator: split out the peer table update functionality from raft state application
2025-01-28 12:52:29 +01:00
Tomasz Grabiec
50d9d5b98e Merge 'truncate: trigger truncate logic from a transition state instead of global topology request' from Ferenc Szili
Truncate table for tablets is implemented as a global topology operation. However, it does not have a transition state associated with it, and performs the truncate logic in `topology_coordinator::handle_global_request()` while `topology::tstate` remains empty. This creates problems because `topology::is_busy()` uses transition_state to determine if the topology state machine is busy, and will return false even though a truncate operation is ongoing.

This change introduces a new topology transition `topology::transition_state::truncate_table` and moves the truncate logic to a new method `topology_coordinator::handle_truncate_table()`. This method is now called as a handler of the `truncate_table` transition state instead of a handler of the `trunacate_table` global topology request.

This PR is a bugfix for truncate with tables and needs to be backported to 2025.1

Closes scylladb/scylladb#22452

* github.com:scylladb/scylladb:
  truncate: trigger truncate logic from transition state instead of global request handler
  truncate: add truncate_table transition state
2025-01-28 12:05:57 +01:00
Asias He
0ab64551c5 storage_service: Reject nodetool removenode force
It is almost always a bad idea to run removenode force. This means a
node is removed without the remaining nodes to stream data that they
should own after the removal. This will make the cluster into a worse
state than a node being down.

One can use one of the following procedure instead:

1) Fix the dead node and move it back to the cluster

2) Run replace ops to replace the dead node

3) Run removenode ops again

We have seen misuse of nodetool removenode force by users again and
again. This patch rejects it so it can not be misused anymore.

Fixes scylladb/scylladb#15833

Closes scylladb/scylladb#15834
2025-01-27 14:50:18 +01:00
Gleb Natapov
fbfef6b28a topology coordinator: do not update topology on address change
Since now topology does not contain ip addresses there is no need to
create topology on an ip address change. Only peers table has to be
updated, so call a function that does peers table update only.
2025-01-26 17:49:05 +02:00
Gleb Natapov
ef929c5def topology coordinator: split out the peer table update functionality from raft state application
Raft topology state application does two things: re-creates token metadata
and updates peers table if needed. The code for both task is intermixed
now. The patch separates it into separate functions. Will be needed in
the next patch.
2025-01-26 17:47:38 +02:00
Avi Kivity
60cdf62fae Merge 'Remove sharded<system_distributed_keyspace>& argument from storage_service::join_cluster()' from Pavel Emelyanov
There's such a reference on storage_service itself, it can use this->_sys_dist_ks instead thus making its API (both internal and external) a bit simpler.

Closes scylladb/scylladb#22483

* github.com:scylladb/scylladb:
  storage_service: Drop sys_dist_ks argument from track_upgrade_progress_to_topology_coordinator()
  storage_service: Drop sys_dist_ks argument from raft_state_monitor_fiber()
  storage_service: Drop sys_dist_ks argument from join_topology()
  storage_service: Drop sys_dist_ks argument from join_cluster()
2025-01-26 15:56:37 +02:00
Asias He
4018dc7f0d Introduce file stream for tablet
File based stream is a new feature that optimizes tablet movement
significantly. It streams the entire SSTable files without deserializing
SSTable files into mutation fragments and re-serializing them back into
SSTables on receiving nodes. As a result, less data is streamed over the
network, and less CPU is consumed, especially for data models that
contain small cells.

The following patches are imported from the scylla enterprise:

*) Merge 'Introduce file stream for tablet' from Asias He

    This patch uses Seastar RPC stream interface to stream sstable files on
    network for tablet migration.

    It streams sstables instead of mutation fragments. The file based
    stream has multiple advantages over the mutation streaming.

    - No serialization or deserialization for mutation fragments
    - No need to read and process each mutation fragments
    - On wire data is more compact and smaller

    In the test below, a significant speed up is observed.

    Two nodes, 1 shard per node, 1 initial_tablets:

    - Start node 1
    - Insert 10M rows of data with c-s
    - Bootstrap node 2

    Node 1 will migration data to node2 with the file stream.

    Test results:

    1) File stream: bytes on wire = 1132006250 bytes, bw = 836MB/s

    [shard 0:stre] stream_blob - stream_sstables[eadaa8e0-a4f2-4cc6-bf10-39ad1ce106b0]
	Finished sending sstable_nr=2 files_nr=18 files={} range=(-1,9223372036854775807] bytes_sent=1132006250 stream_bw=836MB/s
    [shard 0:stre] storage_service - Streaming for tablet migration of a4f68900-568a-11ee-b7b9-c2b13945eed2:1 took 1.08004s seconds

    2) Mutation stream: bytes on wire = 3030004736 bytes, bw = 125410.87 KiB/s = 128MB/s

    [shard 0:stre] stream_session - [Stream #406dc8b0-56b5-11ee-bc2d-000bf4871058]
	Streaming plan for Tablet migration-ks1-index-0 succeeded, peers={127.0.0.1}, tx=0 KiB, 0.00 KiB/s, rx=2958989 KiB, 125410.87 KiB/s
    [shard 0:stre] storage_service - Streaming for tablet migration of a4f68900-568a-11ee-b7b9-c2b13945eed2:1 took 23.5992s seconds

    Test Summary:

    File stream v.s. Mutation stream improvements

    - Stream bandwidth = 836 / 128  (MB/s)  = 6.53X

    - Stream time = 23.60 / 1.08  (Seconds) = 21.85X

    - Stream bytes on wire = 3030004736 / 1132006250 (Bytes)= 2.67X

    Closes scylladb/scylla-enterprise#3438

    * github.com:scylladb/scylla-enterprise:
      tests: Add file_stream_test
      streaming: Implement file stream for tablet

*) streaming: Use new take_storage_snapshot interface

    The new take_storage_snapshot returns a file object instead of a file
    name. This allows the file stream sender to read from the file even if
    the file is deleted by compaction.

    Closes scylladb/scylla-enterprise#3728

*) streaming: Protect unsupported file types for file stream

    Currently, we assume the file streamed over the stream_blob rpc verb is
    a sstable file. This patch rejects the unsupported file types on the
    receiver side. This allows us to stream more file types later using the
    current file stream infrastructure without worrying about old nodes
    processing the new file types in the wrong way.

    - The file_ops::noop is renamed to file_ops::stream_sstables to be
      explicit about the file types

    - A missing test_file_stream_error_injection is added to the idl

    Fixes: #3846
    Tests: test_unsupported_file_ops

    Closes scylladb/scylla-enterprise#3847

*) idl: Add service::session_id id to idl

    It will be used in the next patch.

    Refs #3907

*) streaming: Protect file stream with topology_guard

    Similar to "storage_service, tablets: Use session to guard tablet
    streaming", this patch protects file stream with topology_guard.

    Fixes #3907

*) streaming: Take service topology_guard under the try block

    Taking the service::topology_guard could throw. Currently, it throws
    outside the try block, so the rpc sink will not be closed, causing the
    following assertion:

    ```
    scylla: seastar/include/seastar/rpc/rpc_impl.hh:815: virtual
    seastar::rpc::sink_impl<netw::serializer,
    streaming::stream_blob_cmd_data>::~sink_impl() [Serializer =
    netw::serializer, Out = <streaming::stream_blob_cmd_data>]: Assertion
    `this->_con->get()->sink_closed()' failed.
    ```

    To fix, move more code including the topology_guard taking code to the
    try block.

    Fixes https://github.com/scylladb/scylla-enterprise/issues/4106

    Closes scylladb/scylla-enterprise#4110

*) Merge 'Preserve original SSTable state with file based tablet migration' from Raphael "Raph" Carvalho

    We're not preserving the SSTable state across file based migration, so
    staging SSTables for example are being placed into main directory, and
    consequently, we're mixing staging and non-staging data, losing the
    ability to continue from where the old replica left off.
    It's expected that the view update backlog is transferred from old
    into new replica, as migration doesn't wait for leaving replica to
    complete view update work (which can take long). Elasticity is preferred.

    So this fix guarantees that the state of the SSTable will be preserved
    by propagating it in form of subdirectory (each subdirectory is
    statically mapped with a particular state).

    The staging sstables aren't being registered into view update generator
    yet, as that's supposed to be fixed in OSS (more details can be found
    at https://github.com/scylladb/scylladb/issues/19149).

    Fixes #4265.

    Closes scylladb/scylla-enterprise#4267

    * github.com:scylladb/scylla-enterprise:
      tablet: Preserve original SSTable state with file based tablet migration
      sstables: Add get method for sstable state

*) sstable: (Re-)add shareabled_components getter

*) Merge 'File streaming sstables: Use sstable source/sink to transfer snapshots' from Calle Wilund

    Fixes #4246

    Alternative approach/better separation of concern, transport vs. sstable layer. Builds on #4472, but fancier.

    Ensures we transfer and pre-process scylla metadata for streamed
    file blobs first, then properly apply receiving nodes local config
    by using a source and sink layer exported from sstables, which
    handles things like ordering, metadata filtering (on source) as well
    as handling metadata and proper IO paths when writing data on
    receiver node (sink).

    This implementation maintains the statelessness of the current
    design, and the delegated sink side will re-read and re-write the
    metadata for each component processed. This is a little wasteful,
    but the meta is small, and it is less error prone than trying to do
    caching cross-shards etc. The transport is isolated from the
    knowledge.

    This is an alternative/complement to #4436 and #4472, fixing the
    underlying issue. Note that while the layers/API:s here allows easy
    fixing of other fundamental problems in the feature (such as
    destination location etc), these are not included in the PR, to keep
    it as close to the current behaviour as possible.

    Closes scylladb/scylla-enterprise#4646

    * github.com:scylladb/scylla-enterprise:
      raft_tests: Copy/add a topology test with encryption
      file streaming: Use sstable source/sink to transfer snapshots
      sstables: Add source and sink objects + producers for transfering a snapshot
      sstable::types: Add remove accessor for extension info in metadata

*) The change for error injection in merge commit 966ea5955dd8760:

    File streaming now has "stream_mutation_fragments" error injection points
    so test_table_dropped_during_streaming works with file streaming.

*) doc: document file-based streaming

    This commit adds a description of the file-based streaming feature to the documentation.

    It will be displayed in the docs using the scylladb_include_flag directive after
    https://github.com/scylladb/scylladb/pull/20182 is merged, backported to branch-6.0,
    and, in turn, branch-2024.2.

    Refs https://github.com/scylladb/scylla-enterprise/issues/4585
    Refs https://github.com/scylladb/scylla-enterprise/issues/4254

    Closes scylladb/scylla-enterprise#4587

*) doc: move File-based streaming to the Tablets source file-based-streaming

    This commit moves the description of file-based streaming from a common include file
    to the regular doc source file where tablets are described.

    Closes scylladb/scylla-enterprise#4652

*) streaming: sstable_stream_sink_impl: abort: prevent null pointer dereference

Closes scylladb/scylladb#22467
2025-01-26 12:51:59 +02:00
Pavel Emelyanov
856832911d storage_service: Drop sys_dist_ks argument from track_upgrade_progress_to_topology_coordinator()
It's unused argument. The only caller is relaxed too.

Signed-off-by: Pavel Emelyanov <xemul@scylladb.com>
2025-01-24 12:29:40 +03:00
Pavel Emelyanov
1e93f51977 storage_service: Drop sys_dist_ks argument from raft_state_monitor_fiber()
And the final drop of that kind -- switch to using this->_sys_dist_ks
here too

Signed-off-by: Pavel Emelyanov <xemul@scylladb.com>
2025-01-24 12:29:03 +03:00
Pavel Emelyanov
248456cb9a storage_service: Drop sys_dist_ks argument from join_topology()
Similarly to previous patch, there's this->_sys_dist_ks thing

Signed-off-by: Pavel Emelyanov <xemul@scylladb.com>
2025-01-24 12:28:27 +03:00
Pavel Emelyanov
ca9b59f3b2 storage_service: Drop sys_dist_ks argument from join_cluster()
Storage service has _sys_dist_ks onboard and can just use it

Signed-off-by: Pavel Emelyanov <xemul@scylladb.com>
2025-01-24 12:26:32 +03:00
Pavel Emelyanov
4edd327c4f Revert "repair: add repair_service gate"
This reverts commit 32ab58cdea.

Now repair service starts before and stops after storage server, so the
problem described in the commit is no longer relevant.
2025-01-22 19:25:56 +03:00
Ferenc Szili
9fa254e9a8 truncate: trigger truncate logic from transition state instead of global
request handler

Before this change, the logic of truncate for tablets was triggered from
topology_coordinator::handle_global_request(). This was done without
using a topology transition state which remained empty throughout the
truncate handler's execution.

This change moves the truncate logic to a new method
topology_coordinator::handle_truncate_table(). This method is now called
as a handler of the truncate_table topology transition state instead of
a handler of the trunacate_table global topology request.
2025-01-22 11:08:26 +01:00
Ferenc Szili
29ead7014e truncate: add truncate_table transition state
Truncate table for tablets is implemented as a global topology operation.
However, it does not have a transition state associated with it, and
performs the truncate logic in handle_global_request() while
topology::tstate remains empty. This creates problems because
topology::is_busy() uses transition_state to determine if the topology
state machine is busy, and will return false even though a truncate
operation is ongoing.

This change adds a new transition state: truncate_table
2025-01-22 10:44:36 +01:00
Avi Kivity
59d3a66d18 Revert "Introduce file stream for tablet"
This reverts commit 8208688178. It was
contributed from enterprise, but is too different from the original
for me to merge back.
2025-01-22 09:42:20 +02:00
Tomasz Grabiec
8059090a29 Merge 'Cache base info for view schemas in the schema registry' from Wojciech Mitros
Currently, when we load a frozen schema into the registry, we lose
the base info if the schema was of a view. Because of that, in various
places we need to set the base info again, and in some codepaths we
may miss it completely, which may make us unable to process some
requests (for example, when executing reverse queries on views).
Even after setting the base info, we may still lose it if the schema
entry gets deactivated due to all `schema_ptr`s temporarily dying.

To fix this, this patch adds the base schema to the registry, alongside
the view schema. We store just the frozen base schema, so that we can
transfer it across shards. With the base schema, we can now set the base
info when returning the schema from the registry. As a result, we can now
assume that all view schemas returned by the registry have base_info set.

In this series we also make sure that the view schemas in the registry are
kept up-to-date in regards to base schema changes.

Fixes https://github.com/scylladb/scylladb/issues/21354

This issue is a bug, so adding backport labels 6.1 and 6.2

Closes scylladb/scylladb#21862

* github.com:scylladb/scylladb:
  test: add test for schema registry maintaining base info for views
  schema_registry: avoid setting base info when getting the schema from registry
  schema_registry: update cached base schemas when updating a view
  schema_registry: cache base schemas for views
  db: set base info before adding schema to registry
2025-01-21 00:17:54 +01:00
Tomasz Grabiec
c7f78edc78 Merge 'repair: Wire repair_time in system.tablets for tombstone gc' from Asias He
The repair_time in system.tablets will be updated when repair runs
successfully. We can now use it to update the repair time for tombstone
gc, i.e, when the system.tablets.repair_time is propagated, call
gc_state.update_repair_time() on the node that is the owner of the
tablet.

Since b3b3e880d3 ("repair: Reduce hints and batchlog flush"), the
repair time that could be used for tombstone gc might be smaller than
when the repair is started, so the actual repair time for tombstone gc
is returned by the repair rpc call from the repair master node.

Fixes #17507

New feature. No backport is needed.

Closes scylladb/scylladb#21896

* github.com:scylladb/scylladb:
  repair: Stop using rpc to update repair time for repairs scheduled by scheduler
  repair: Wire repair_time in system.tablets for tombstone gc
  test: Disable flush_cache_time for two tablet repair tests
  test: Introduce guarantee_repair_time_next_second helper
  repair: Return repair time for repair_service::repair_tablet
  service: Add tablet_operation.hh
2025-01-20 18:08:49 +01:00
Benny Halevy
88ae067ddb everywhere: add skeletal support for the in_memory_tables feature
Forward-ported from scylla-enterprise.
Note that the feature has been deprecated and the implementation
is provided only for backward compatibility with pre-existing
features and schema.

Tested manually after adding the following to feature_service:
```
    gms::feature workload_prioritization { *this, "WORKLOAD_PRIORITIZATION"sv };
```

Launched a single-node cluster running 2023.1.10
```
cqlsh> create KEYSPACE ks WITH replication = {'class': 'SimpleStrategy', 'replication_factor': 1};
cqlsh> create TABLE ks.test ( pk int PRIMARY KEY, val int ) WITH compaction = {'class': 'InMemoryCompactionStrategy'};
```

log:
```
Scylla version 2023.1.10-0.20241227.21cffccc1ccd with build-id bd65b8399cb13b713a87e57fe333cfcabfd50be7 starting ...
...
INFO  2024-12-27 19:45:16,563 [shard 0] migration_manager - Create new ColumnFamily: org.apache.cassandra.config.CFMetaData@0x600000f1b400[cfId=5529c630-c47a-11ef-bd1d-4295734ce5a8,ksName=ks,cfName=test,cfType=Standard,comparator=org.apache.cassandra.db.marshal.CompositeType(org.apache.cassandra.db.marshal.UTF8Type),comment=,readRepairChance=0,dcLocalReadRepairChance=0,tombstoneGcOptions={"mode":"timeout","propagation_delay_in_seconds":"3600"},gcGraceSeconds=864000,keyValidator=org.apache.cassandra.db.marshal.Int32Type,minCompactionThreshold=4,maxCompactionThreshold=32,columnMetadata=[ColumnDefinition{name=pk, type=org.apache.cassandra.db.marshal.Int32Type, kind=PARTITION_KEY, componentIndex=0, droppedAt=-9223372036854775808}, ColumnDefinition{name=val, type=org.apache.cassandra.db.marshal.Int32Type, kind=REGULAR, componentIndex=null, droppedAt=-9223372036854775808}],compactionStrategyClass=class org.apache.cassandra.db.compaction.InMemoryCompactionStrategy,compactionStrategyOptions={enabled=true},compressionParameters={sstable_compression=org.apache.cassandra.io.compress.LZ4Compressor},bloomFilterFpChance=0.01,memtableFlushPeriod=0,caching={"keys":"ALL","rows_per_partition":"ALL"},cdc={},defaultTimeToLive=0,minIndexInterval=128,maxIndexInterval=2048,speculativeRetry=99.0PERCENTILE,triggers=[],isDense=false,in_memory=false,version=5529c631-c47a-11ef-bd1d-4295734ce5a8,droppedColumns={},collections={},indices={}]
INFO  2024-12-27 19:45:16,564 [shard 0] schema_tables - Creating ks.test id=5529c630-c47a-11ef-bd1d-4295734ce5a8 version=ec88d510-6aff-344a-914d-541d37081440
```

Upgraded to this branch and started scylla.
Verified that ks.test was successfuly loaded:

log:
```
INFO  2024-12-27 19:48:58,115 [shard 0:main] init - Scylla version 6.3.0~dev-0.20241227.a64c6dfc153e with build-id f9496134a09cf2e55d3865b9e9ff499f672aa7da starting ...
...
WARN  2024-12-27 19:53:02,948 [shard 1:main] CompactionStrategy - InMemoryCompactionStrategy is no longer supported. Defaulting to NullCompactionStrategy.
...
INFO  2024-12-27 19:53:02,948 [shard 0:main] database - Keyspace ks: Reading CF test id=5529c630-c47a-11ef-bd1d-4295734ce5a8 version=ec88d510-6aff-344a-914d-541d37081440 storage=/home/bhalevy/scylladb/data/ks/test-5529c630c47a11efbd1d4295734ce5a8
```

Then, tested:
```
cqlsh> describe KEYSPACE ks;

CREATE KEYSPACE ks WITH replication = {'class': 'org.apache.cassandra.locator.SimpleStrategy', 'replication_factor': '1'} AND durable_writes = true AND tablets = {'enabled': false};

CREATE TABLE ks.test (
    pk int,
    val int,
    PRIMARY KEY (pk)
) WITH bloom_filter_fp_chance = 0.01
    AND caching = {'keys': 'ALL', 'rows_per_partition': 'ALL'}
    AND comment = ''
    AND compaction = {'class': 'InMemoryCompactionStrategy'}
    AND compression = {'sstable_compression': 'org.apache.cassandra.io.compress.LZ4Compressor'}
    AND crc_check_chance = 1
    AND default_time_to_live = 0
    AND gc_grace_seconds = 864000
    AND max_index_interval = 2048
    AND memtable_flush_period_in_ms = 0
    AND min_index_interval = 128
    AND speculative_retry = '99.0PERCENTILE';

cqlsh> alter TABLE ks.test with compaction = {'class': 'SizeTieredCompactionStrategy'};
cqlsh> describe KEYSPACE ks;

CREATE KEYSPACE ks WITH replication = {'class': 'org.apache.cassandra.locator.SimpleStrategy', 'replication_factor': '1'} AND durable_writes = true AND tablets = {'enabled': false};

CREATE TABLE ks.test (
    pk int,
    val int,
    PRIMARY KEY (pk)
) WITH bloom_filter_fp_chance = 0.01
    AND caching = {'keys': 'ALL', 'rows_per_partition': 'ALL'}
    AND comment = ''
    AND compaction = {'class': 'SizeTieredCompactionStrategy'}
    AND compression = {'sstable_compression': 'org.apache.cassandra.io.compress.LZ4Compressor'}
    AND crc_check_chance = 1
    AND default_time_to_live = 0
    AND gc_grace_seconds = 864000
    AND max_index_interval = 2048
    AND memtable_flush_period_in_ms = 0
    AND min_index_interval = 128
    AND speculative_retry = '99.0PERCENTILE'
    AND tombstone_gc = {'mode': 'timeout', 'propagation_delay_in_seconds': '3600'};
```

log:
```
INFO  2024-12-27 19:56:40,465 [shard 0:stmt] migration_manager - Update table 'ks.test' From org.apache.cassandra.config.CFMetaData@0x60000362d800[cfId=5529c630-c47a-11ef-bd1d-4295734ce5a8,ksName==ks,cfName=test,cfType=Standard,comparator=org.apache.cassandra.db.marshal.CompositeType(org.apache.cassandra.db.marshal.UTF8Type),comment=,tombstoneGcOptions={"mode":"timeout","propagation_delay_in_seconds":"3600"},gcGraceSeconds=864000,minCompactionThreshold=4,maxCompactionThreshold=32,columnMetadata=[ColumnDefinition{name=pk, type=org.apache.cassandra.db.marshal.Int32Type, kind=PARTITION_KEY, componentIndex=0, droppedAt=-9223372036854775808}, ColumnDefinition{name=val, type=org.apache.cassandra.db.marshal.Int32Type, kind=REGULAR, componentIndex=null, droppedAt=-9223372036854775808}],compactionStrategyClass=class org.apache.cassandra.db.compaction.InMemoryCompactionStrategy,compactionStrategyOptions={enabled=true},compressionParameters={sstable_compression=org.apache.cassandra.io.compress.LZ4Compressor},bloomFilterFpChance=0.01,memtableFlushPeriod=0,caching={"keys":"ALL","rows_per_partition":"ALL"},cdc={},defaultTimeToLive=0,minIndexInterval=128,maxIndexInterval=2048,speculativeRetry=99.0PERCENTILE,triggers=[],isDense=false,version=ec88d510-6aff-344a-914d-541d37081440,droppedColumns={},collections={},indices={}] To org.apache.cassandra.config.CFMetaData@0x60000336e000[cfId=5529c630-c47a-11ef-bd1d-4295734ce5a8,ksName==ks,cfName=test,cfType=Standard,comparator=org.apache.cassandra.db.marshal.CompositeType(org.apache.cassandra.db.marshal.UTF8Type),comment=,tombstoneGcOptions={"mode":"timeout","propagation_delay_in_seconds":"3600"},gcGraceSeconds=864000,minCompactionThreshold=4,maxCompactionThreshold=32,columnMetadata=[ColumnDefinition{name=pk, type=org.apache.cassandra.db.marshal.Int32Type, kind=PARTITION_KEY, componentIndex=0, droppedAt=-9223372036854775808}, ColumnDefinition{name=val, type=org.apache.cassandra.db.marshal.Int32Type, kind=REGULAR, componentIndex=null, droppedAt=-9223372036854775808}],compactionStrategyClass=class org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy,compactionStrategyOptions={enabled=true},compressionParameters={sstable_compression=org.apache.cassandra.io.compress.LZ4Compressor},bloomFilterFpChance=0.01,memtableFlushPeriod=0,caching={"keys":"ALL","rows_per_partition":"ALL"},cdc={},defaultTimeToLive=0,minIndexInterval=128,maxIndexInterval=2048,speculativeRetry=99.0PERCENTILE,triggers=[],isDense=false,version=ecccf010-c47b-11ef-b52c-622f2f0e87c4,droppedColumns={},collections={},indices={}]
INFO  2024-12-27 19:56:40,466 [shard 0: gms] schema_tables - Altering ks.test id=5529c630-c47a-11ef-bd1d-4295734ce5a8 version=ecccf010-c47b-11ef-b52c-622f2f0e87c4
```

Signed-off-by: Benny Halevy <bhalevy@scylladb.com>

Closes scylladb/scylladb#22068
2025-01-20 16:55:17 +02:00
Asias He
8208688178 Introduce file stream for tablet
File based stream is a new feature that optimizes tablet movement
significantly. It streams the entire SSTable files without deserializing
SSTable files into mutation fragments and re-serializing them back into
SSTables on receiving nodes. As a result, less data is streamed over the
network, and less CPU is consumed, especially for data models that
contain small cells.

The following patches are imported from the scylla enterprise:

*) Merge 'Introduce file stream for tablet' from Asias He

    This patch uses Seastar RPC stream interface to stream sstable files on
    network for tablet migration.

    It streams sstables instead of mutation fragments. The file based
    stream has multiple advantages over the mutation streaming.

    - No serialization or deserialization for mutation fragments
    - No need to read and process each mutation fragments
    - On wire data is more compact and smaller

    In the test below, a significant speed up is observed.

    Two nodes, 1 shard per node, 1 initial_tablets:

    - Start node 1
    - Insert 10M rows of data with c-s
    - Bootstrap node 2

    Node 1 will migration data to node2 with the file stream.

    Test results:

    1) File stream: bytes on wire = 1132006250 bytes, bw = 836MB/s

    [shard 0:stre] stream_blob - stream_sstables[eadaa8e0-a4f2-4cc6-bf10-39ad1ce106b0]
	Finished sending sstable_nr=2 files_nr=18 files={} range=(-1,9223372036854775807] bytes_sent=1132006250 stream_bw=836MB/s
    [shard 0:stre] storage_service - Streaming for tablet migration of a4f68900-568a-11ee-b7b9-c2b13945eed2:1 took 1.08004s seconds

    2) Mutation stream: bytes on wire = 3030004736 bytes, bw = 125410.87 KiB/s = 128MB/s

    [shard 0:stre] stream_session - [Stream #406dc8b0-56b5-11ee-bc2d-000bf4871058]
	Streaming plan for Tablet migration-ks1-index-0 succeeded, peers={127.0.0.1}, tx=0 KiB, 0.00 KiB/s, rx=2958989 KiB, 125410.87 KiB/s
    [shard 0:stre] storage_service - Streaming for tablet migration of a4f68900-568a-11ee-b7b9-c2b13945eed2:1 took 23.5992s seconds

    Test Summary:

    File stream v.s. Mutation stream improvements

    - Stream bandwidth = 836 / 128  (MB/s)  = 6.53X

    - Stream time = 23.60 / 1.08  (Seconds) = 21.85X

    - Stream bytes on wire = 3030004736 / 1132006250 (Bytes)= 2.67X

    Closes scylladb/scylla-enterprise#3438

    * github.com:scylladb/scylla-enterprise:
      tests: Add file_stream_test
      streaming: Implement file stream for tablet

*) streaming: Use new take_storage_snapshot interface

    The new take_storage_snapshot returns a file object instead of a file
    name. This allows the file stream sender to read from the file even if
    the file is deleted by compaction.

    Closes scylladb/scylla-enterprise#3728

*) streaming: Protect unsupported file types for file stream

    Currently, we assume the file streamed over the stream_blob rpc verb is
    a sstable file. This patch rejects the unsupported file types on the
    receiver side. This allows us to stream more file types later using the
    current file stream infrastructure without worrying about old nodes
    processing the new file types in the wrong way.

    - The file_ops::noop is renamed to file_ops::stream_sstables to be
      explicit about the file types

    - A missing test_file_stream_error_injection is added to the idl

    Fixes: #3846
    Tests: test_unsupported_file_ops

    Closes scylladb/scylla-enterprise#3847

*) idl: Add service::session_id id to idl

    It will be used in the next patch.

    Refs #3907

*) streaming: Protect file stream with topology_guard

    Similar to "storage_service, tablets: Use session to guard tablet
    streaming", this patch protects file stream with topology_guard.

    Fixes #3907

*) streaming: Take service topology_guard under the try block

    Taking the service::topology_guard could throw. Currently, it throws
    outside the try block, so the rpc sink will not be closed, causing the
    following assertion:

    ```
    scylla: seastar/include/seastar/rpc/rpc_impl.hh:815: virtual
    seastar::rpc::sink_impl<netw::serializer,
    streaming::stream_blob_cmd_data>::~sink_impl() [Serializer =
    netw::serializer, Out = <streaming::stream_blob_cmd_data>]: Assertion
    `this->_con->get()->sink_closed()' failed.
    ```

    To fix, move more code including the topology_guard taking code to the
    try block.

    Fixes https://github.com/scylladb/scylla-enterprise/issues/4106

    Closes scylladb/scylla-enterprise#4110

*) Merge 'Preserve original SSTable state with file based tablet migration' from Raphael "Raph" Carvalho

    We're not preserving the SSTable state across file based migration, so
    staging SSTables for example are being placed into main directory, and
    consequently, we're mixing staging and non-staging data, losing the
    ability to continue from where the old replica left off.
    It's expected that the view update backlog is transferred from old
    into new replica, as migration doesn't wait for leaving replica to
    complete view update work (which can take long). Elasticity is preferred.

    So this fix guarantees that the state of the SSTable will be preserved
    by propagating it in form of subdirectory (each subdirectory is
    statically mapped with a particular state).

    The staging sstables aren't being registered into view update generator
    yet, as that's supposed to be fixed in OSS (more details can be found
    at https://github.com/scylladb/scylladb/issues/19149).

    Fixes #4265.

    Closes scylladb/scylla-enterprise#4267

    * github.com:scylladb/scylla-enterprise:
      tablet: Preserve original SSTable state with file based tablet migration
      sstables: Add get method for sstable state

*) sstable: (Re-)add shareabled_components getter

*) Merge 'File streaming sstables: Use sstable source/sink to transfer snapshots' from Calle Wilund

    Fixes #4246

    Alternative approach/better separation of concern, transport vs. sstable layer. Builds on #4472, but fancier.

    Ensures we transfer and pre-process scylla metadata for streamed
    file blobs first, then properly apply receiving nodes local config
    by using a source and sink layer exported from sstables, which
    handles things like ordering, metadata filtering (on source) as well
    as handling metadata and proper IO paths when writing data on
    receiver node (sink).

    This implementation maintains the statelessness of the current
    design, and the delegated sink side will re-read and re-write the
    metadata for each component processed. This is a little wasteful,
    but the meta is small, and it is less error prone than trying to do
    caching cross-shards etc. The transport is isolated from the
    knowledge.

    This is an alternative/complement to #4436 and #4472, fixing the
    underlying issue. Note that while the layers/API:s here allows easy
    fixing of other fundamental problems in the feature (such as
    destination location etc), these are not included in the PR, to keep
    it as close to the current behaviour as possible.

    Closes scylladb/scylla-enterprise#4646

    * github.com:scylladb/scylla-enterprise:
      raft_tests: Copy/add a topology test with encryption
      file streaming: Use sstable source/sink to transfer snapshots
      sstables: Add source and sink objects + producers for transfering a snapshot
      sstable::types: Add remove accessor for extension info in metadata

*) The change for error injection in merge commit 966ea5955dd8760:

    File streaming now has "stream_mutation_fragments" error injection points
    so test_table_dropped_during_streaming works with file streaming.

*) doc: document file-based streaming

    This commit adds a description of the file-based streaming feature to the documentation.

    It will be displayed in the docs using the scylladb_include_flag directive after
    https://github.com/scylladb/scylladb/pull/20182 is merged, backported to branch-6.0,
    and, in turn, branch-2024.2.

    Refs https://github.com/scylladb/scylla-enterprise/issues/4585
    Refs https://github.com/scylladb/scylla-enterprise/issues/4254

    Closes scylladb/scylla-enterprise#4587

*) doc: move File-based streaming to the Tablets source file-based-streaming

    This commit moves the description of file-based streaming from a common include file
    to the regular doc source file where tablets are described.

    Closes scylladb/scylla-enterprise#4652

*) streaming: sstable_stream_sink_impl: abort: prevent null pointer dereference

Closes scylladb/scylladb#22034
2025-01-20 16:43:21 +02:00
Kefu Chai
1ef2d9d076 tree: migrate from boost::adaptors::transformed to std::views::transform
Replace remaining uses of boost::adaptors::transformed with std::views::transform
to reduce Boost dependencies, following the migration pattern established in
bab12e3a. This change addresses recently merged code that reintroduced Boost
header dependencies through boost::adaptors::transformed usage.

Signed-off-by: Kefu Chai <kefu.chai@scylladb.com>

Closes scylladb/scylladb#22365
2025-01-17 16:56:40 +02:00
Botond Dénes
47989b1503 Merge 'tasks: add tablet resize virtual task' from Aleksandra Martyniuk
In this change, tablet_virtual_task starts supporting tablet
resize (i.e. split and merge).

Users can see running resize tasks - finished tasks are not
presented with the task manager API.

A new task state "suspended" is added. If a resize was revoked,
it will appear to users as suspended. We assume that the resize was revoked
when the tablet number didn't change.

Fixes: #21366.
Fixes: #21367.

No backport, new feature

Closes scylladb/scylladb#21891

* github.com:scylladb/scylladb:
  test: boost: check resize_task_info in tablet_test.cc
  test: add tests to check revoked resize virtual tasks
  test: add tests to check the list of resize virtual tasks
  test: add tests to check spilt and merge virtual tasks status
  test: test_tablet_tasks: generalize functions
  replica: service: add split virtual task's children
  replica: service: pass parent info down to storage_group::split
  tasks: children of virtual tasks aren't internal by default
  tasks: initialize shard in task_info ctor
  service: extend tablet_virtual_task::abort
  service: retrun status_helper struct from tablet_virtual_task::get_status_helper
  service: extend tablet_virtual_task::wait
  tasks: add suspended task state
  service: extend tablet_virtual_task::get_status
  service: extend tablet_virtual_task::contains
  service: extend tablet_virtual_task::get_stats
  service: add service::task_manager_module::get_nodes
  tasks: add task_manager::get_nodes
  tasks: drop noexcept from module::get_nodes
  replica: service: add resize_task_info static column to system.tablets
  locator: extend tablet_task_info to cover resize tasks
2025-01-17 14:24:07 +02:00
Piotr Dulikowski
6aa962f5f4 Merge 'Add audit subsystem for database operations' from Paweł Zakrzewski
Introduces a comprehensive audit system to track database operations for security
and compliance purposes. This change includes:

Core Components:
- New audit subsystem for logging database operations
- Service level integration for proper resource management
- CQL statement tracking with operation categories
- Login process integration for tenant management

Key Features:
- Configurable audit logging (syslog/table)
- Operation categorization (QUERY/DML/DDL/DCL/AUTH/ADMIN)
- Selective auditing by keyspace/table
- Password sanitization in audit logs
- Service level shares support (1-1000) for workload prioritization
- Proper lifecycle management and cleanup

I ran the dtests for audit (manually enabled) and they pass.
The in-repo tests pass.

Notably, there should be no non-whitespace changes between this and scylla-enterprise

Fixes scylladb/scylla-enterprise#4999

Closes scylladb/scylladb#22147

* github.com:scylladb/scylladb:
  audit: Add shares support to service level management
  audit: Add service level support to CQL login process
  audit: Add support to CQL statements
  audit: Integrate audit subsystem into Scylla main process
  audit: Add documentation for the audit subsystem
  audit: Add the audit subsystem
2025-01-17 13:14:55 +01:00
Kamil Braun
89ee2a6834 Merge 'drop ip addresses from token metadata' from Gleb
Now that all topology related code uses host ids there is not point to
maintain ip to id (and back) mappings in the token metadata. After the
patch the mapping will be maintained in the gossiper only. The rest of
the system will use host ids and in rare cases where translation is
needed (mostly for UX compatibility reasons) the translation will be
done using gossiper.

Fixes: scylladb/scylla#21777

* 'gleb/drop-ip-from-tm-v3' of github.com:scylladb/scylla-dev: (57 commits)
  hint manager: do not translate ip to id in case hint manager is stopped already
  locator: token_metadata: drop update_host_id() function that does nothing now
  locator: topology: drop indexing by ips
  repair: drop unneeded code
  storage_service: use host_id to look for a node in on_alive handler
  storage_proxy: translate ips to ids in forward array using gossiper
  locator: topology: remove unused functions
  storage_service: check for outdated ip in on_change notification in the peers table
  storage_proxy: translate id to ip using address map in tablets's describe_ring code instead of taking one from the topology
  topology coordinator: change connection dropping code to work on host ids
  cql3: report host id instead of ip in error during SELECT FROM MUTATION_FRAGMENTS query
  locator: drop unused function from tablet_effective_replication_map
  api: view_build_statuses: do not use IP from the topology, but translate id to ip using address map instead
  locator: token_metadata: remove unused ip based functions
  locator: network_topology_strategy: use host_id based function to check number of endpoints in dcs
  gossiper: drop get_unreachable_token_owners functions
  storage_service: use gossiper to map ip to id in node_ops operations
  storage_service: fix indentation after the last patch
  storage_service: drop loops from node ops replace_prepare handling since there can be only one replacing node
  token_metadata: drop no longer used functions
  ...
2025-01-17 11:00:52 +01:00
Asias He
53e6025aa6 repair: Wire repair_time in system.tablets for tombstone gc
The repair_time in system.tablets will be updated when repair runs
successfully. We can now use it to update the repair time for tombstone
gc, i.e, when the system.tablets.repair_time is propagated, call
gc_state.update_repair_time() on the node that is the owner of the
tablet.

Since b3b3e880d3 ("repair: Reduce hints and batchlog flush"), the
repair time that could be used for tombstone gc might be smaller than
when the repair is started, so the actual repair time for tombstone gc
is returned by the repair rpc call from the repair master node.

Fixes #17507
2025-01-17 16:12:05 +08:00
Asias He
614c3380c6 service: Add tablet_operation.hh
A tablet_operation_result struct is added to track the result of a
tablet operation.
2025-01-17 16:12:05 +08:00
Gleb Natapov
1e4b2f25dc locator: token_metadata: drop update_host_id() function that does nothing now 2025-01-16 16:37:08 +02:00
Gleb Natapov
12da203cae storage_service: use host_id to look for a node in on_alive handler 2025-01-16 16:37:08 +02:00
Gleb Natapov
d45ce6fa12 storage_proxy: translate ips to ids in forward array using gossiper
We already use it to translate reply_to, so do it for consistency and to
drop ip based API usage.
2025-01-16 16:37:08 +02:00
Gleb Natapov
fb28ff5176 storage_service: check for outdated ip in on_change notification in the peers table
The code checks that it does not run for an ip address that is no longer
in use (after ip address change). To check that we can use peers table
and see if the host id is mapped to the address. If yes, this is the
latest address for this host id otherwise this is an outdated entry.
2025-01-16 16:37:07 +02:00
Gleb Natapov
163099678e storage_proxy: translate id to ip using address map in tablets's describe_ring code instead of taking one from the topology
We want to drop ip from the locator::node.
2025-01-16 16:37:07 +02:00
Gleb Natapov
49fa1130ef topology coordinator: change connection dropping code to work on host ids
Do not use ip from topology::node, but look it up in address map
instead. We want to drop ip from the topology::node.
2025-01-16 16:37:07 +02:00
Gleb Natapov
0ec9f7de64 gossiper: drop get_unreachable_token_owners functions
It is used by truncate code only and even there it only check if the
returned set is not empty. Check for dead token owners in the truncation
code directly.
2025-01-16 16:37:07 +02:00
Gleb Natapov
a7a7cdcf42 storage_service: use gossiper to map ip to id in node_ops operations
Replace operation is special though. In case of replacing with the same
IP the gossiper will not have the mapping, and node_ops RPC
unfortunately does not send host id of a replaced node. For replace we
consult peers table instead to find the old owner of the IP. A node that
is replacing (the coordinator of the replace) will not have it though,
but luckily it is not needed since it updates metadata during
join_topology() anyway. The only thing that is missing there is
add_replacing_endpoint() call which the patch adds.
2025-01-16 16:37:07 +02:00
Gleb Natapov
0db6136fa5 storage_service: fix indentation after the last patch 2025-01-16 16:37:07 +02:00
Gleb Natapov
9197b88e48 storage_service: drop loops from node ops replace_prepare handling since there can be only one replacing node
The call already throw an error if there are more than one. Throw is
there are zero as well and drop the loops.
2025-01-16 16:37:07 +02:00
Gleb Natapov
7c4c485651 host_id_or_endpoint: use gossiper to resolve ip to id and back mappings
host_id_or_endpoint is a helper class that hold either id or ip and
translate one into another on demand. Use gossiper to do a translation
there instead of token_metadata since we want to drop ip based APIs from
the later.
2025-01-16 16:37:07 +02:00
Gleb Natapov
70cc014307 storage_service: ip_address_updater: check peers table instead of token_metadata whether ip was changed
As part of changing IP address peers table is updated. If it has a new
address the update can be skipped.
2025-01-16 16:37:07 +02:00
Gleb Natapov
8e55cc6c78 storage_service: fix logging
When logger outputs a range it already does join, so no other join is
needed.
2025-01-16 16:37:07 +02:00
Gleb Natapov
7556e3d045 topology coordinator: remove gossiper entry only if host id matches provided one
Currently the entry is removed only if ip is not used by any normal or
transitioning node. This is done to not remove a wrong entry that just
happen to use the same ip, but the same can be achieved by checking host
id in the entry.
2025-01-16 16:37:07 +02:00
Gleb Natapov
593308a051 node_ops, cdc: drop remaining token_metadata::get_endpoint_for_host_id() usage
Use address map to translate id to ip instead. We want to drop ips from token_metadata.
2025-01-16 16:37:07 +02:00
Gleb Natapov
ae8dc595e1 hints: move id to ip translation into store_hint() function
Also use gossiper to translate instead of token_metadata since we want
to get rid of ip base APIs there.
2025-01-16 16:37:06 +02:00
Gleb Natapov
c7d08fe1fe storage_service: change get_dc_rack_for() to work on host ids 2025-01-16 16:37:06 +02:00
Gleb Natapov
8a0fea5fef locator: topology: drop is_me ip overload along with remaning users 2025-01-16 16:37:06 +02:00