Benny Halevy 9cc45fe5c9 flat_mutation_reader: consume_mutation_fragments_until: maybe yield after each popped mutation_fragment
Address the following reactor stall seen with
4.6.dev-0.20210421.2ad09d0bf:
```
2021-04-29T17:19:11+00:00  perf-latency-nemesis-fix-late-db-node-afb25d9a-5 !INFO    | scylla[9515]: Reactor stalled for 19 ms on shard 2. Backtrace: 0x4044de4 0x4044121 0x4044caf 0x7f537c6601df 0x13792ff 0x137fc18 0x11d89ec 0x1444424 0x13edd69 0x12bdc57 0x12bc1fa 0x12bb6f3 0x12ba304 0x12b94ce 0x1282525 0x12812ec 0x1524fda 0x12aa3ec 0x12aa228 0x4057d3f 0x4058fc7 0x407797b 0x40234ba 0x93f8 0x101902

void seastar::backtrace<seastar::backtrace_buffer::append_backtrace_oneline()::{lambda(seastar::frame)#1}>(seastar::backtrace_buffer::append_backtrace_oneline()::{lambda(seastar::frame)#1}&&) at ./build/release/seastar/./seastar/include/seastar/util/backtrace.hh:59
 (inlined by) seastar::backtrace_buffer::append_backtrace_oneline() at ./build/release/seastar/./seastar/src/core/reactor.cc:772
 (inlined by) seastar::print_with_backtrace(seastar::backtrace_buffer&, bool) at ./build/release/seastar/./seastar/src/core/reactor.cc:791
seastar::internal::cpu_stall_detector::generate_trace() at ./build/release/seastar/./seastar/src/core/reactor.cc:1223
seastar::internal::cpu_stall_detector::maybe_report() at ./build/release/seastar/./seastar/src/core/reactor.cc:1104
 (inlined by) seastar::internal::cpu_stall_detector::on_signal() at ./build/release/seastar/./seastar/src/core/reactor.cc:1118
 (inlined by) seastar::reactor::block_notifier(int) at ./build/release/seastar/./seastar/src/core/reactor.cc:1206
?? ??:0
logalloc::region_impl::object_descriptor::encode(char*&, unsigned long) const at ./utils/logalloc.cc:1184
 (inlined by) logalloc::region_impl::alloc_small(logalloc::region_impl::object_descriptor const&, unsigned int, unsigned long) at ./utils/logalloc.cc:1293
logalloc::region_impl::alloc(migrate_fn_type const*, unsigned long, unsigned long) at ./utils/logalloc.cc:1515
managed_bytes at ././utils/managed_bytes.hh:149
 (inlined by) managed_bytes at ././utils/managed_bytes.hh:198
 (inlined by) atomic_cell_or_collection::copy(abstract_type const&) const at ./atomic_cell.cc:86
operator() at ./mutation_partition.cc:1462
 (inlined by) std::__exception_ptr::exception_ptr compact_radix_tree::tree<cell_and_hash, unsigned int>::copy_slots<compact_radix_tree::tree<cell_and_hash, unsigned int>::indirect_layout<cell_and_hash, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)2, 8u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)3, 0u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)1, 4u>::clone<compact_radix_tree::tree<cell_and_hash, unsigned int>::leaf_node, row::row(schema const&, column_kind, row const&)::$_14&>(compact_radix_tree::tree<cell_and_hash, unsigned int>::node_head const&, row::row(schema const&, column_kind, row const&)::$_14&, unsigned int) const::{lambda(unsigned int)#1}, row::row(schema const&, column_kind, row const&)::$_14&, compact_radix_tree::tree<cell_and_hash, unsigned int>::node_base<cell_and_hash, compact_radix_tree::tree<cell_and_hash, unsigned int>::indirect_layout<cell_and_hash, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)1, 4u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)2, 0u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)0, 0u>, compact_radix_tree::tree<cell_and_hash, unsigned int>::indirect_layout<cell_and_hash, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)2, 8u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)3, 0u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)1, 4u>, compact_radix_tree::tree<cell_and_hash, unsigned int>::indirect_layout<cell_and_hash, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)3, 16u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)4, 0u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)2, 8u>, compact_radix_tree::tree<cell_and_hash, unsigned int>::indirect_layout<cell_and_hash, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)4, 32u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)6, 0u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)3, 16u>, compact_radix_tree::tree<cell_and_hash, unsigned int>::direct_layout<cell_and_hash, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)6, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)0, 0u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)4, 32u> > >(compact_radix_tree::tree<cell_and_hash, unsigned int>::node_head const&, cell_and_hash const*, unsigned int, unsigned int, compact_radix_tree::tree<cell_and_hash, unsigned int>::node_base<cell_and_hash, compact_radix_tree::tree<cell_and_hash, unsigned int>::indirect_layout<cell_and_hash, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)1, 4u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)2, 0u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)0, 0u>, compact_radix_tree::tree<cell_and_hash, unsigned int>::indirect_layout<cell_and_hash, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)2, 8u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)3, 0u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)1, 4u>, compact_radix_tree::tree<cell_and_hash, unsigned int>::indirect_layout<cell_and_hash, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)3, 16u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)4, 0u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)2, 8u>, compact_radix_tree::tree<cell_and_hash, unsigned int>::indirect_layout<cell_and_hash, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)4, 32u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)6, 0u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)3, 16u>, compact_radix_tree::tree<cell_and_hash, unsigned int>::direct_layout<cell_and_hash, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)6, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)0, 0u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)4, 32u> >&, compact_radix_tree::tree<cell_and_hash, unsigned int>::indirect_layout<cell_and_hash, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)2, 8u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)3, 0u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)1, 4u>::clone<compact_radix_tree::tree<cell_and_hash, unsigned int>::leaf_node, row::row(schema const&, column_kind, row const&)::$_14&>(compact_radix_tree::tree<cell_and_hash, unsigned int>::node_head const&, row::row(schema const&, column_kind, row const&)::$_14&, unsigned int) const::{lambda(unsigned int)#1}&&, row::row(schema const&, column_kind, row const&)::$_14&) at ././utils/compact-radix-tree.hh:1406
 (inlined by) std::pair<compact_radix_tree::tree<cell_and_hash, unsigned int>::node_head*, std::__exception_ptr::exception_ptr> compact_radix_tree::tree<cell_and_hash, unsigned int>::indirect_layout<cell_and_hash, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)2, 8u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)3, 0u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)1, 4u>::clone<compact_radix_tree::tree<cell_and_hash, unsigned int>::leaf_node, row::row(schema const&, column_kind, row const&)::$_14&>(compact_radix_tree::tree<cell_and_hash, unsigned int>::node_head const&, row::row(schema const&, column_kind, row const&)::$_14&, unsigned int) const at ././utils/compact-radix-tree.hh:1293
 (inlined by) std::pair<compact_radix_tree::tree<cell_and_hash, unsigned int>::node_head*, std::__exception_ptr::exception_ptr> compact_radix_tree::tree<cell_and_hash, unsigned int>::node_base<cell_and_hash, compact_radix_tree::tree<cell_and_hash, unsigned int>::indirect_layout<cell_and_hash, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)1, 4u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)2, 0u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)0, 0u>, compact_radix_tree::tree<cell_and_hash, unsigned int>::indirect_layout<cell_and_hash, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)2, 8u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)3, 0u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)1, 4u>, compact_radix_tree::tree<cell_and_hash, unsigned int>::indirect_layout<cell_and_hash, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)3, 16u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)4, 0u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)2, 8u>, compact_radix_tree::tree<cell_and_hash, unsigned int>::indirect_layout<cell_and_hash, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)4, 32u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)6, 0u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)3, 16u>, compact_radix_tree::tree<cell_and_hash, unsigned int>::direct_layout<cell_and_hash, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)6, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)0, 0u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)4, 32u> >::clone<compact_radix_tree::tree<cell_and_hash, unsigned int>::leaf_node, row::row(schema const&, column_kind, row const&)::$_14&, compact_radix_tree::tree<cell_and_hash, unsigned int>::indirect_layout<cell_and_hash, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)2, 8u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)3, 0u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)1, 4u>, compact_radix_tree::tree<cell_and_hash, unsigned int>::indirect_layout<cell_and_hash, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)3, 16u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)4, 0u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)2, 8u>, compact_radix_tree::tree<cell_and_hash, unsigned int>::indirect_layout<cell_and_hash, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)4, 32u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)6, 0u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)3, 16u>, compact_radix_tree::tree<cell_and_hash, unsigned int>::direct_layout<cell_and_hash, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)6, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)0, 0u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)4, 32u> >(compact_radix_tree::variadic_union<compact_radix_tree::tree<cell_and_hash, unsigned int>::indirect_layout<cell_and_hash, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)2, 8u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)3, 0u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)1, 4u>, compact_radix_tree::tree<cell_and_hash, unsigned int>::indirect_layout<cell_and_hash, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)3, 16u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)4, 0u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)2, 8u>, compact_radix_tree::tree<cell_and_hash, unsigned int>::indirect_layout<cell_and_hash, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)4, 32u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)6, 0u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)3, 16u>, compact_radix_tree::tree<cell_and_hash, unsigned int>::direct_layout<cell_and_hash, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)6, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)0, 0u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)4, 32u> > const&, row::row(schema const&, column_kind, row const&)::$_14&, unsigned int) const at ././utils/compact-radix-tree.hh:829
 (inlined by) std::pair<compact_radix_tree::tree<cell_and_hash, unsigned int>::node_head*, std::__exception_ptr::exception_ptr> compact_radix_tree::tree<cell_and_hash, unsigned int>::node_base<cell_and_hash, compact_radix_tree::tree<cell_and_hash, unsigned int>::indirect_layout<cell_and_hash, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)1, 4u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)2, 0u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)0, 0u>, compact_radix_tree::tree<cell_and_hash, unsigned int>::indirect_layout<cell_and_hash, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)2, 8u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)3, 0u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)1, 4u>, compact_radix_tree::tree<cell_and_hash, unsigned int>::indirect_layout<cell_and_hash, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)3, 16u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)4, 0u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)2, 8u>, compact_radix_tree::tree<cell_and_hash, unsigned int>::indirect_layout<cell_and_hash, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)4, 32u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)6, 0u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)3, 16u>, compact_radix_tree::tree<cell_and_hash, unsigned int>::direct_layout<cell_and_hash, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)6, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)0, 0u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)4, 32u> >::clone<compact_radix_tree::tree<cell_and_hash, unsigned int>::leaf_node, row::row(schema const&, column_kind, row const&)::$_14&, compact_radix_tree::tree<cell_and_hash, unsigned int>::indirect_layout<cell_and_hash, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)1, 4u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)2, 0u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)0, 0u>, compact_radix_tree::tree<cell_and_hash, unsigned int>::indirect_layout<cell_and_hash, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)2, 8u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)3, 0u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)1, 4u>, compact_radix_tree::tree<cell_and_hash, unsigned int>::indirect_layout<cell_and_hash, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)3, 16u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)4, 0u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)2, 8u>, compact_radix_tree::tree<cell_and_hash, unsigned int>::indirect_layout<cell_and_hash, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)4, 32u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)6, 0u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)3, 16u>, compact_radix_tree::tree<cell_and_hash, unsigned int>::direct_layout<cell_and_hash, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)6, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)0, 0u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)4, 32u> >(compact_radix_tree::variadic_union<compact_radix_tree::tree<cell_and_hash, unsigned int>::indirect_layout<cell_and_hash, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)1, 4u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)2, 0u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)0, 0u>, compact_radix_tree::tree<cell_and_hash, unsigned int>::indirect_layout<cell_and_hash, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)2, 8u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)3, 0u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)1, 4u>, compact_radix_tree::tree<cell_and_hash, unsigned int>::indirect_layout<cell_and_hash, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)3, 16u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)4, 0u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)2, 8u>, compact_radix_tree::tree<cell_and_hash, unsigned int>::indirect_layout<cell_and_hash, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)4, 32u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)6, 0u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)3, 16u>, compact_radix_tree::tree<cell_and_hash, unsigned int>::direct_layout<cell_and_hash, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)6, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)0, 0u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)4, 32u> > const&, row::row(schema const&, column_kind, row const&)::$_14&, unsigned int) const at ././utils/compact-radix-tree.hh:832
 (inlined by) std::pair<compact_radix_tree::tree<cell_and_hash, unsigned int>::node_head*, std::__exception_ptr::exception_ptr> compact_radix_tree::tree<cell_and_hash, unsigned int>::node_base<cell_and_hash, compact_radix_tree::tree<cell_and_hash, unsigned int>::indirect_layout<cell_and_hash, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)1, 4u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)2, 0u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)0, 0u>, compact_radix_tree::tree<cell_and_hash, unsigned int>::indirect_layout<cell_and_hash, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)2, 8u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)3, 0u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)1, 4u>, compact_radix_tree::tree<cell_and_hash, unsigned int>::indirect_layout<cell_and_hash, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)3, 16u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)4, 0u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)2, 8u>, compact_radix_tree::tree<cell_and_hash, unsigned int>::indirect_layout<cell_and_hash, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)4, 32u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)6, 0u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)3, 16u>, compact_radix_tree::tree<cell_and_hash, unsigned int>::direct_layout<cell_and_hash, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)6, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)0, 0u, (compact_radix_tree::tree<cell_and_hash, unsigned int>::layout)4, 32u> >::clone<compact_radix_tree::tree<cell_and_hash, unsigned int>::leaf_node, row::row(schema const&, column_kind, row const&)::$_14&>(row::row(schema const&, column_kind, row const&)::$_14&, unsigned int) const at ././utils/compact-radix-tree.hh:837
 (inlined by) std::pair<compact_radix_tree::tree<cell_and_hash, unsigned int>::node_head*, std::__exception_ptr::exception_ptr> compact_radix_tree::tree<cell_and_hash, unsigned int>::node_head::clone<row::row(schema const&, column_kind, row const&)::$_14&>(row::row(schema const&, column_kind, row const&)::$_14&, unsigned int) const at ././utils/compact-radix-tree.hh:499
void compact_radix_tree::tree<cell_and_hash, unsigned int>::clone_from<row::row(schema const&, column_kind, row const&)::$_14&>(compact_radix_tree::tree<cell_and_hash, unsigned int> const&, row::row(schema const&, column_kind, row const&)::$_14&) at ././utils/compact-radix-tree.hh:1866
 (inlined by) row at ./mutation_partition.cc:1465
deletable_row at ././mutation_partition.hh:831
 (inlined by) rows_entry at ././mutation_partition.hh:940
 (inlined by) rows_entry* allocation_strategy::construct<rows_entry, schema const&, clustering_key_prefix const&, deletable_row const&>(schema const&, clustering_key_prefix const&, deletable_row const&) at ././utils/allocation_strategy.hh:153
 (inlined by) operator() at ././cache_flat_mutation_reader.hh:467
operator() at ././row_cache.hh:601
 (inlined by) decltype(auto) with_allocator<cache::lsa_manager::run_in_update_section_with_allocator<cache::cache_flat_mutation_reader::maybe_add_to_cache(clustering_row const&)::{lambda()#1}>(cache::cache_flat_mutation_reader::maybe_add_to_cache(clustering_row const&)::{lambda()#1}&&)::{lambda()#1}::operator()() const::{lambda()#1}>(allocation_strategy&, cache::lsa_manager::run_in_update_section_with_allocator<cache::cache_flat_mutation_reader::maybe_add_to_cache(clustering_row const&)::{lambda()#1}>(cache::cache_flat_mutation_reader::maybe_add_to_cache(clustering_row const&)::{lambda()#1}&&)::{lambda()#1}::operator()() const::{lambda()#1}) at ././utils/allocation_strategy.hh:311
 (inlined by) operator() at ././row_cache.hh:600
 (inlined by) decltype(auto) logalloc::allocating_section::with_reclaiming_disabled<cache::lsa_manager::run_in_update_section_with_allocator<cache::cache_flat_mutation_reader::maybe_add_to_cache(clustering_row const&)::{lambda()#1}>(cache::cache_flat_mutation_reader::maybe_add_to_cache(clustering_row const&)::{lambda()#1}&&)::{lambda()#1}&>(logalloc::region&, cache::lsa_manager::run_in_update_section_with_allocator<cache::cache_flat_mutation_reader::maybe_add_to_cache(clustering_row const&)::{lambda()#1}>(cache::cache_flat_mutation_reader::maybe_add_to_cache(clustering_row const&)::{lambda()#1}&&)::{lambda()#1}&) at ././utils/logalloc.hh:757
 (inlined by) operator() at ././utils/logalloc.hh:779
 (inlined by) _ZN8logalloc18allocating_section12with_reserveIZNS0_clIZN5cache11lsa_manager36run_in_update_section_with_allocatorIZNS3_26cache_flat_mutation_reader18maybe_add_to_cacheERK14clustering_rowEUlvE_EEvOT_EUlvE_EEDcRNS_6regionESC_EUlvE_EEDcSC_ at ././utils/logalloc.hh:728
 (inlined by) decltype(auto) logalloc::allocating_section::operator()<cache::lsa_manager::run_in_update_section_with_allocator<cache::cache_flat_mutation_reader::maybe_add_to_cache(clustering_row const&)::{lambda()#1}>(cache::cache_flat_mutation_reader::maybe_add_to_cache(clustering_row const&)::{lambda()#1}&&)::{lambda()#1}>(logalloc::region&, cache::lsa_manager::run_in_update_section_with_allocator<cache::cache_flat_mutation_reader::maybe_add_to_cache(clustering_row const&)::{lambda()#1}>(cache::cache_flat_mutation_reader::maybe_add_to_cache(clustering_row const&)::{lambda()#1}&&)::{lambda()#1}) at ././utils/logalloc.hh:778
 (inlined by) void cache::lsa_manager::run_in_update_section_with_allocator<cache::cache_flat_mutation_reader::maybe_add_to_cache(clustering_row const&)::{lambda()#1}>(cache::cache_flat_mutation_reader::maybe_add_to_cache(clustering_row const&)::{lambda()#1}&&) at ././row_cache.hh:599
 (inlined by) cache::cache_flat_mutation_reader::maybe_add_to_cache(clustering_row const&) at ././cache_flat_mutation_reader.hh:459
 (inlined by) cache::cache_flat_mutation_reader::maybe_add_to_cache(mutation_fragment const&) at ././cache_flat_mutation_reader.hh:446
operator() at ././cache_flat_mutation_reader.hh:321
 (inlined by) operator() at ././flat_mutation_reader.hh:549
seastar::future<void> seastar::futurize<seastar::future<void> >::invoke<consume_mutation_fragments_until<cache::cache_flat_mutation_reader::read_from_underlying(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#1}, cache::cache_flat_mutation_reader::read_from_underlying(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda(mutation_fragment)#1}, cache::cache_flat_mutation_reader::read_from_underlying(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#2}>(flat_mutation_reader&, cache::cache_flat_mutation_reader::read_from_underlying(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#1}&&, cache::cache_flat_mutation_reader::read_from_underlying(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda(mutation_fragment)#1}&&, cache::cache_flat_mutation_reader::read_from_underlying(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#2}&&, std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#2}&>(flat_mutation_reader) at ././seastar/include/seastar/core/future.hh:2135
 (inlined by) auto seastar::futurize_invoke<consume_mutation_fragments_until<cache::cache_flat_mutation_reader::read_from_underlying(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#1}, cache::cache_flat_mutation_reader::read_from_underlying(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda(mutation_fragment)#1}, cache::cache_flat_mutation_reader::read_from_underlying(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#2}>(flat_mutation_reader&, cache::cache_flat_mutation_reader::read_from_underlying(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#1}&&, cache::cache_flat_mutation_reader::read_from_underlying(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda(mutation_fragment)#1}&&, cache::cache_flat_mutation_reader::read_from_underlying(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#2}&&, std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#2}&>(flat_mutation_reader) at ././seastar/include/seastar/core/future.hh:2166
 (inlined by) {lambda()#2} seastar::do_until<consume_mutation_fragments_until<cache::cache_flat_mutation_reader::read_from_underlying(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#1}, cache::cache_flat_mutation_reader::read_from_underlying(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda(mutation_fragment)#1}, cache::cache_flat_mutation_reader::read_from_underlying(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#2}>(flat_mutation_reader&, cache::cache_flat_mutation_reader::read_from_underlying(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#1}&&, cache::cache_flat_mutation_reader::read_from_underlying(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda(mutation_fragment)#1}&&, cache::cache_flat_mutation_reader::read_from_underlying(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#2}&&, std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#2}, consume_mutation_fragments_until<{lambda()#1}, mutation_fragment, {lambda(mutation_fragment)#1}>(seastar::future, flat_mutation_reader, {lambda()#1}, mutation_fragment, std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#1}>(flat_mutation_reader&, seastar::future<void>) at ././seastar/include/seastar/core/loop.hh:341
 (inlined by) seastar::future<void> consume_mutation_fragments_until<cache::cache_flat_mutation_reader::read_from_underlying(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#1}, cache::cache_flat_mutation_reader::read_from_underlying(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda(mutation_fragment)#1}, cache::cache_flat_mutation_reader::read_from_underlying(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#2}>(flat_mutation_reader&, cache::cache_flat_mutation_reader::read_from_underlying(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#1}&&, cache::cache_flat_mutation_reader::read_from_underlying(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda(mutation_fragment)#1}&&, cache::cache_flat_mutation_reader::read_from_underlying(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#2}&&, std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >) at ././flat_mutation_reader.hh:547
 (inlined by) cache::cache_flat_mutation_reader::read_from_underlying(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >) at ././cache_flat_mutation_reader.hh:317
 (inlined by) operator() at ././cache_flat_mutation_reader.hh:277
 (inlined by) seastar::future<void> seastar::futurize<seastar::future<void> >::invoke<cache::cache_flat_mutation_reader::do_fill_buffer(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#2}>(cache::cache_flat_mutation_reader::do_fill_buffer(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#2}&&) at ././seastar/include/seastar/core/future.hh:2135
 (inlined by) seastar::future<void> seastar::futurize<seastar::future<void> >::invoke<cache::cache_flat_mutation_reader::do_fill_buffer(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#2}>(cache::cache_flat_mutation_reader::do_fill_buffer(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#2}&&, seastar::internal::monostate) at ././seastar/include/seastar/core/future.hh:1979
 (inlined by) seastar::future<void> seastar::future<void>::then_impl<cache::cache_flat_mutation_reader::do_fill_buffer(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#2}, seastar::future<void> >(cache::cache_flat_mutation_reader::do_fill_buffer(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#2}&&) at ././seastar/include/seastar/core/future.hh:1601
 (inlined by) seastar::internal::future_result<cache::cache_flat_mutation_reader::do_fill_buffer(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#2}, void>::future_type seastar::internal::call_then_impl<seastar::future<void> >::run<cache::cache_flat_mutation_reader::do_fill_buffer(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#2}>(seastar::future<void>&, seastar::internal::future_result&&) at ././seastar/include/seastar/core/future.hh:1234
 (inlined by) seastar::future<void> seastar::future<void>::then<cache::cache_flat_mutation_reader::do_fill_buffer(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#2}, seastar::future<void> >(cache::cache_flat_mutation_reader::do_fill_buffer(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#2}&&) at ././seastar/include/seastar/core/future.hh:1520
 (inlined by) cache::cache_flat_mutation_reader::do_fill_buffer(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >) at ././cache_flat_mutation_reader.hh:276
operator() at ././cache_flat_mutation_reader.hh:266
 (inlined by) seastar::future<void> seastar::futurize<seastar::future<void> >::invoke<cache::cache_flat_mutation_reader::do_fill_buffer(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#1}>(cache::cache_flat_mutation_reader::do_fill_buffer(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#1}&&) at ././seastar/include/seastar/core/future.hh:2135
 (inlined by) seastar::future<void> seastar::futurize<seastar::future<void> >::invoke<cache::cache_flat_mutation_reader::do_fill_buffer(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#1}>(cache::cache_flat_mutation_reader::do_fill_buffer(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#1}&&, seastar::internal::monostate) at ././seastar/include/seastar/core/future.hh:1979
 (inlined by) seastar::future<void> seastar::future<void>::then_impl<cache::cache_flat_mutation_reader::do_fill_buffer(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#1}, seastar::future<void> >(cache::cache_flat_mutation_reader::do_fill_buffer(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#1}&&) at ././seastar/include/seastar/core/future.hh:1601
 (inlined by) seastar::internal::future_result<cache::cache_flat_mutation_reader::do_fill_buffer(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#1}, void>::future_type seastar::internal::call_then_impl<seastar::future<void> >::run<cache::cache_flat_mutation_reader::do_fill_buffer(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#1}>(seastar::future<void>&, seastar::internal::future_result&&) at ././seastar/include/seastar/core/future.hh:1234
 (inlined by) seastar::future<void> seastar::future<void>::then<cache::cache_flat_mutation_reader::do_fill_buffer(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#1}, seastar::future<void> >(cache::cache_flat_mutation_reader::do_fill_buffer(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#1}&&) at ././seastar/include/seastar/core/future.hh:1520
 (inlined by) cache::cache_flat_mutation_reader::do_fill_buffer(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >) at ././cache_flat_mutation_reader.hh:265
operator() at ././cache_flat_mutation_reader.hh:240
 (inlined by) seastar::future<void> seastar::futurize<seastar::future<void> >::invoke<cache::cache_flat_mutation_reader::fill_buffer(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#3}&>(cache::cache_flat_mutation_reader::fill_buffer(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#3}&) at ././seastar/include/seastar/core/future.hh:2135
 (inlined by) auto seastar::futurize_invoke<cache::cache_flat_mutation_reader::fill_buffer(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#3}&>(cache::cache_flat_mutation_reader::fill_buffer(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#3}&) at ././seastar/include/seastar/core/future.hh:2166
 (inlined by) seastar::future<void> seastar::do_until<cache::cache_flat_mutation_reader::fill_buffer(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#3}, cache::cache_flat_mutation_reader::fill_buffer(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#2}>(cache::cache_flat_mutation_reader::fill_buffer(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#2}, cache::cache_flat_mutation_reader::fill_buffer(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#3}) at ././seastar/include/seastar/core/loop.hh:341
 (inlined by) cache::cache_flat_mutation_reader::fill_buffer(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >) at ././cache_flat_mutation_reader.hh:239
 (inlined by) operator() at ././cache_flat_mutation_reader.hh:230
cache::cache_flat_mutation_reader::fill_buffer(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >) at ././cache_flat_mutation_reader.hh:235
flat_mutation_reader::fill_buffer(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >) at ././flat_mutation_reader.hh:405
 (inlined by) seastar::future<bool> flat_mutation_reader::impl::fill_buffer_from<flat_mutation_reader>(flat_mutation_reader&, std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >) at ./flat_mutation_reader.cc:203
operator() at ./row_cache.cc:406
 (inlined by) seastar::future<void> seastar::futurize<seastar::future<void> >::invoke<single_partition_populating_reader::fill_buffer(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#3}&>(single_partition_populating_reader::fill_buffer(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#3}&) at ././seastar/include/seastar/core/future.hh:2135
 (inlined by) auto seastar::futurize_invoke<single_partition_populating_reader::fill_buffer(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#3}&>(single_partition_populating_reader::fill_buffer(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#3}&) at ././seastar/include/seastar/core/future.hh:2166
 (inlined by) seastar::future<void> seastar::do_until<single_partition_populating_reader::fill_buffer(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#3}, single_partition_populating_reader::fill_buffer(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#2}>(single_partition_populating_reader::fill_buffer(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#2}, single_partition_populating_reader::fill_buffer(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#3}) at ././seastar/include/seastar/core/loop.hh:341
 (inlined by) single_partition_populating_reader::fill_buffer(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >) at ./row_cache.cc:405
 (inlined by) operator() at ./row_cache.cc:402
 (inlined by) seastar::future<void> std::__invoke_impl<seastar::future<void>, single_partition_populating_reader::fill_buffer(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#1}&>(std::__invoke_other, single_partition_populating_reader::fill_buffer(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#1}&) at /usr/lib/gcc/x86_64-redhat-linux/10/../../../../include/c++/10/bits/invoke.h:60
 (inlined by) std::__invoke_result<single_partition_populating_reader::fill_buffer(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#1}&>::type std::__invoke<single_partition_populating_reader::fill_buffer(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#1}&>(std::__invoke_result&&, (single_partition_populating_reader::fill_buffer(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#1}&)...) at /usr/lib/gcc/x86_64-redhat-linux/10/../../../../include/c++/10/bits/invoke.h:95
 (inlined by) std::invoke_result<single_partition_populating_reader::fill_buffer(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#1}&>::type std::invoke<single_partition_populating_reader::fill_buffer(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#1}&>(std::invoke_result&&, (single_partition_populating_reader::fill_buffer(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#1}&)...) at /usr/lib/gcc/x86_64-redhat-linux/10/../../../../include/c++/10/functional:88
 (inlined by) auto seastar::internal::future_invoke<single_partition_populating_reader::fill_buffer(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#1}&, seastar::internal::monostate>(single_partition_populating_reader::fill_buffer(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#1}&, seastar::internal::monostate&&) at ././seastar/include/seastar/core/future.hh:1209
 (inlined by) operator() at ././seastar/include/seastar/core/future.hh:1582
 (inlined by) _ZN7seastar8futurizeINS_6futureIvEEE22satisfy_with_result_ofIZZNS2_14then_impl_nrvoIZN34single_partition_populating_reader11fill_bufferENSt6chrono10time_pointINS_12lowres_clockENS7_8durationIlSt5ratioILl1ELl1000EEEEEEEUlvE_S2_EET0_OT_ENKUlONS_8internal22promise_base_with_typeIvEERSF_ONS_12future_stateINSJ_9monostateEEEE_clESM_SN_SR_EUlvE_EEvSM_SI_ at ././seastar/include/seastar/core/future.hh:2120
operator() at ././seastar/include/seastar/core/future.hh:1575
 (inlined by) seastar::continuation<seastar::internal::promise_base_with_type<void>, single_partition_populating_reader::fill_buffer(std::chrono::time_point<seastar::lowres_clock, std::chrono::duration<long, std::ratio<1l, 1000l> > >)::{lambda()#1}, seastar::future<void>::then_impl_nrvo<{lambda()#1}, seastar::future>({lambda()#1}&&)::{lambda(seastar::internal::promise_base_with_type<void>&&, {lambda()#1}&, seastar::future_state<seastar::internal::monostate>&&)#1}, void>::run_and_dispose() at ././seastar/include/seastar/core/future.hh:767
seastar::reactor::run_tasks(seastar::reactor::task_queue&) at ./build/release/seastar/./seastar/src/core/reactor.cc:2228
 (inlined by) seastar::reactor::run_some_tasks() at ./build/release/seastar/./seastar/src/core/reactor.cc:2637
seastar::reactor::run() at ./build/release/seastar/./seastar/src/core/reactor.cc:2796
operator() at ./build/release/seastar/./seastar/src/core/reactor.cc:3987
 (inlined by) void std::__invoke_impl<void, seastar::smp::configure(boost::program_options::variables_map, seastar::reactor_config)::$_97&>(std::__invoke_other, seastar::smp::configure(boost::program_options::variables_map, seastar::reactor_config)::$_97&) at /usr/lib/gcc/x86_64-redhat-linux/10/../../../../include/c++/10/bits/invoke.h:60
 (inlined by) std::enable_if<is_invocable_r_v<void, seastar::smp::configure(boost::program_options::variables_map, seastar::reactor_config)::$_97&>, void>::type std::__invoke_r<void, seastar::smp::configure(boost::program_options::variables_map, seastar::reactor_config)::$_97&>(seastar::smp::configure(boost::program_options::variables_map, seastar::reactor_config)::$_97&) at /usr/lib/gcc/x86_64-redhat-linux/10/../../../../include/c++/10/bits/invoke.h:110
 (inlined by) std::_Function_handler<void (), seastar::smp::configure(boost::program_options::variables_map, seastar::reactor_config)::$_97>::_M_invoke(std::_Any_data const&) at /usr/lib/gcc/x86_64-redhat-linux/10/../../../../include/c++/10/bits/std_function.h:291
std::function<void ()>::operator()() const at /usr/lib/gcc/x86_64-redhat-linux/10/../../../../include/c++/10/bits/std_function.h:622
 (inlined by) seastar::posix_thread::start_routine(void*) at ./build/release/seastar/./seastar/src/core/posix.cc:60
?? ??:0
?? ??:0
```

Fixes #8579

Test: unit(dev)
Signed-off-by: Benny Halevy <bhalevy@scylladb.com>

Closes #8580
2021-05-03 14:06:26 +03:00
2021-02-08 15:41:46 +02:00
2021-04-14 13:16:00 +02:00
2021-02-09 07:04:17 +01:00
2021-05-03 13:21:25 +03:00
2020-12-03 17:37:18 +01:00
2021-02-14 22:09:24 +02:00
2021-04-25 11:35:07 +03:00
2021-04-14 13:15:59 +02:00
2020-09-07 23:17:41 +03:00
2021-04-08 10:02:54 +02:00
2020-08-19 17:18:57 +03:00
2021-04-23 17:13:24 +03:00
2021-01-04 13:24:43 -03:00
2021-01-08 14:16:08 +01:00
2021-04-25 11:35:07 +03:00
2021-04-25 11:35:07 +03:00
2021-02-21 13:49:12 +02:00
2021-04-14 13:15:59 +02:00

Scylla

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What is Scylla?

Scylla is the real-time big data database that is API-compatible with Apache Cassandra and Amazon DynamoDB. Scylla embraces a shared-nothing approach that increases throughput and storage capacity to realize order-of-magnitude performance improvements and reduce hardware costs.

For more information, please see the ScyllaDB web site.

Build Prerequisites

Scylla is fairly fussy about its build environment, requiring very recent versions of the C++20 compiler and of many libraries to build. The document HACKING.md includes detailed information on building and developing Scylla, but to get Scylla building quickly on (almost) any build machine, Scylla offers a frozen toolchain, This is a pre-configured Docker image which includes recent versions of all the required compilers, libraries and build tools. Using the frozen toolchain allows you to avoid changing anything in your build machine to meet Scylla's requirements - you just need to meet the frozen toolchain's prerequisites (mostly, Docker or Podman being available).

Building Scylla

Building Scylla with the frozen toolchain dbuild is as easy as:

$ git submodule update --init --force --recursive
$ ./tools/toolchain/dbuild ./configure.py
$ ./tools/toolchain/dbuild ninja build/release/scylla

For further information, please see:

Running Scylla

To start Scylla server, run:

$ ./tools/toolchain/dbuild ./build/release/scylla --workdir tmp --smp 1 --developer-mode 1

This will start a Scylla node with one CPU core allocated to it and data files stored in the tmp directory. The --developer-mode is needed to disable the various checks Scylla performs at startup to ensure the machine is configured for maximum performance (not relevant on development workstations). Please note that you need to run Scylla with dbuild if you built it with the frozen toolchain.

For more run options, run:

$ ./tools/toolchain/dbuild ./build/release/scylla --help

Testing

See test.py manual.

Scylla APIs and compatibility

By default, Scylla is compatible with Apache Cassandra and its APIs - CQL and Thrift. There is also support for the API of Amazon DynamoDB™, which needs to be enabled and configured in order to be used. For more information on how to enable the DynamoDB™ API in Scylla, and the current compatibility of this feature as well as Scylla-specific extensions, see Alternator and Getting started with Alternator.

Documentation

Documentation can be found here. Seastar documentation can be found here. User documentation can be found here.

Training

Training material and online courses can be found at Scylla University. The courses are free, self-paced and include hands-on examples. They cover a variety of topics including Scylla data modeling, administration, architecture, basic NoSQL concepts, using drivers for application development, Scylla setup, failover, compactions, multi-datacenters and how Scylla integrates with third-party applications.

Contributing to Scylla

If you want to report a bug or submit a pull request or a patch, please read the contribution guidelines.

If you are a developer working on Scylla, please read the developer guidelines.

Contact

  • The users mailing list and Slack channel are for users to discuss configuration, management, and operations of the ScyllaDB open source.
  • The developers mailing list is for developers and people interested in following the development of ScyllaDB to discuss technical topics.
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