- 25 3月, 2022 9 次提交
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由 myasuka 提交于
Summary: After commit [d642c60b](https://github.com/facebook/rocksdb/commit/d642c60bdc100f7509ca77b383cd47b51d80d810), the stats `READ_BLOCK_COMPACTION_MICROS` cannot record any compaction read duration, and it always report zero. This PR targets to distinguish `READ_BLOCK_COMPACTION_MICROS` with `READ_BLOCK_GET_MICROS` so that `READ_BLOCK_COMPACTION_MICROS` could record the correct stats. Pull Request resolved: https://github.com/facebook/rocksdb/pull/9722 Reviewed By: ajkr Differential Revision: D35021870 Pulled By: jay-zhuang fbshipit-source-id: f1a804994265e51465de64c2a08f2e0eeb6fc5a3
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由 Jay Zhuang 提交于
Summary: Seems clean-rocksjava and clean-rocks conflict. Also remove unnecessary step in java CI build, otherwise it will rebuild the code again as java make sample do clean up first. Pull Request resolved: https://github.com/facebook/rocksdb/pull/9710 Test Plan: `make rocksdbjava && make clean` should return success Reviewed By: riversand963 Differential Revision: D35122872 Pulled By: jay-zhuang fbshipit-source-id: 2a15b83e7a763c0fc0e42e1f35aac9551f951ece
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由 Mark Callaghan 提交于
Summary: This adds the --slow_usecs option with a default value of 1M. Operations that take this much time have a message printed when --histogram=1, --stats_interval=0 and --stats_interval_seconds=0. The current code hardwired this to 20,000 usecs and for some stress tests that reduced throughput by 20% or more. This is for https://github.com/facebook/rocksdb/issues/9620 Pull Request resolved: https://github.com/facebook/rocksdb/pull/9732 Test Plan: ./db_bench --benchmarks=fillrandom,readrandom --compression_type=lz4 --slow_usecs=100 --histogram=1 ./db_bench --benchmarks=fillrandom,readrandom --compression_type=lz4 --slow_usecs=100000 --histogram=1 Reviewed By: jay-zhuang Differential Revision: D35121522 Pulled By: mdcallag fbshipit-source-id: daf27f937efd748980545d6395db332712fc078b
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由 Peter Dillinger 提交于
Summary: Although ColumnFamilySet comments say that DB mutex can be freed during iteration, as long as you hold a ref while releasing DB mutex, this is not quite true because UnrefAndTryDelete might delete cfd right before it is needed to get ->next_ for the next iteration of the loop. This change solves the problem by making a wrapper class that makes such iteration easier while handling the tricky details of UnrefAndTryDelete on the previous cfd only after getting next_ in operator++. FreeDeadColumnFamilies should already have been obsolete; this removes it for good. Similarly, ColumnFamilySet::iterator doesn't need to check for cfd with 0 refs, because those are immediately deleted. Pull Request resolved: https://github.com/facebook/rocksdb/pull/9730 Test Plan: was reported with ASAN on unit tests like DBLogicalBlockSizeCacheTest.CreateColumnFamily (very rare); keep watching Reviewed By: ltamasi Differential Revision: D35038143 Pulled By: pdillinger fbshipit-source-id: 0a5478d5be96c135343a00603711b7df43ae19c9
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由 Alan Paxton 提交于
Summary: Extend Java RocksDB iterators to support indirect byte buffers, to add to the existing support for direct byte buffers. Code to distinguish direct/indirect buffers is switched in Java, and a 2nd separate JNI call implemented to support indirect buffers. Indirect support passes contained buffers using byte[] There are some Java subclasses of iterator (WBWIIterator, SstFileReaderIterator) which also now have parallel JNI support functions implemented, along with direct/indirect switches in Java methods. Closes https://github.com/facebook/rocksdb/issues/6282 Pull Request resolved: https://github.com/facebook/rocksdb/pull/9222 Reviewed By: ajkr Differential Revision: D35115283 Pulled By: jay-zhuang fbshipit-source-id: f8d5d20b975aef700560fbcc99f707bb028dc42e
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由 Alan Paxton 提交于
Summary: Fix https://github.com/facebook/rocksdb/issues/9720 And make a couple of incidental tests test the thing they were meant to test. Pull Request resolved: https://github.com/facebook/rocksdb/pull/9749 Reviewed By: ajkr Differential Revision: D35115298 Pulled By: jay-zhuang fbshipit-source-id: d687d1f070d29216be9693601c71131bbea87c79
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由 Mark Callaghan 提交于
db_bench should fail on bad values for --compaction_fadvice and --value_size_distribution_type (#9741) Summary: db_bench quietly parses and ignores bad values for --compaction_fadvice and --value_size_distribution_type I prefer that it fail for them as it does for bad option values in most other cases. Otherwise a benchmark result will be provided for the wrong configuration and the result will be misleading. Pull Request resolved: https://github.com/facebook/rocksdb/pull/9741 Test Plan: These now fail: ./db_bench --compaction_fadvice=noney Unknown compaction fadvice:noney ./db_bench --value_size_distribution_type=norma Cannot parse distribution type 'norma' While correct values continue to work: ./db_bench --value_size_distribution_type=normal Initializing RocksDB Options from the specified file Initializing RocksDB Options from command-line flags ./db_bench --compaction_fadvice=none Initializing RocksDB Options from the specified file Initializing RocksDB Options from command-line flags Reviewed By: siying Differential Revision: D35115973 Pulled By: mdcallag fbshipit-source-id: c2b10de5c2d1ea7c7539e676f5bd556351f5d370
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由 Yanqin Jin 提交于
Summary: Test plan ``` build_tools/rocksdb-lego-determinator stress_crash_with_multiops_wc_txn build_tools/rocksdb-lego-determinator stress_crash_with_multiops_wp_txn ``` Spot check the printed job spec. Pull Request resolved: https://github.com/facebook/rocksdb/pull/9753 Reviewed By: jay-zhuang Differential Revision: D35117116 Pulled By: riversand963 fbshipit-source-id: a7ed82e8cb9bc2fd13f4f00291c6a39457415fb0
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由 Jay Zhuang 提交于
Summary: DBGet p95 and p99 have high variation, remove them for now. Also increase the iteration to 3 to avoid false positive. Pull Request resolved: https://github.com/facebook/rocksdb/pull/9742 Test Plan: Internal CI Reviewed By: ajkr Differential Revision: D35082820 Pulled By: jay-zhuang fbshipit-source-id: facc1d56b94e54aa8c8852c207aae2ae4e4924b0
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- 24 3月, 2022 8 次提交
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由 Mark Callaghan 提交于
Summary: When --benchmarks has more than one test then the threads in one benchmark will use the same set of seeds as the threads in the previous benchmark. This diff fixe that. This fixes https://github.com/facebook/rocksdb/issues/9632 Pull Request resolved: https://github.com/facebook/rocksdb/pull/9733 Test Plan: For this command line the block cache is 8GB, so it caches at most 1024 8KB blocks. Note that without this diff the second run of readrandom has a much better response time because seed reuse means the second run reads the same 1000 blocks as the first run and they are cached at that point. But with this diff that does not happen. ./db_bench --benchmarks=fillseq,flush,compact0,waitforcompaction,levelstats,readrandom,readrandom --compression_type=zlib --num=10000000 --reads=1000 --block_size=8192 ... ``` Level Files Size(MB) -------------------- 0 0 0 1 11 238 2 9 253 3 0 0 4 0 0 5 0 0 6 0 0 ``` --- perf results without this diff DB path: [/tmp/rocksdbtest-2260/dbbench] readrandom : 46.212 micros/op 21618 ops/sec; 2.4 MB/s (1000 of 1000 found) DB path: [/tmp/rocksdbtest-2260/dbbench] readrandom : 21.963 micros/op 45450 ops/sec; 5.0 MB/s (1000 of 1000 found) --- perf results with this diff DB path: [/tmp/rocksdbtest-2260/dbbench] readrandom : 47.213 micros/op 21126 ops/sec; 2.3 MB/s (1000 of 1000 found) DB path: [/tmp/rocksdbtest-2260/dbbench] readrandom : 42.880 micros/op 23299 ops/sec; 2.6 MB/s (1000 of 1000 found) Reviewed By: jay-zhuang Differential Revision: D35089763 Pulled By: mdcallag fbshipit-source-id: 1b50143a07afe876b8c8e5fa50dd94a8ce57fc6b
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由 Peter Dillinger 提交于
Summary: This updates main branch with a HISTORY update going into 7.1.fb branch before tagging 7.1.0. Pull Request resolved: https://github.com/facebook/rocksdb/pull/9746 Test Plan: HISTORY.md only Reviewed By: ajkr, hx235 Differential Revision: D35099194 Pulled By: pdillinger fbshipit-source-id: b74ea8b626118dac235e387038420829850b8da2
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由 Yanqin Jin 提交于
Summary: Add determinators for multiops transactions stress test with write-committed and write-prepared policies. Pull Request resolved: https://github.com/facebook/rocksdb/pull/9708 Test Plan: Internal CI Reviewed By: jay-zhuang Differential Revision: D34967263 Pulled By: riversand963 fbshipit-source-id: 170a0842d56dccb6ed6bc0c5adfd33849acd6b31
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由 Yanqin Jin 提交于
Summary: There is a race condition if WAL tracking in the MANIFEST is enabled in a database that disables 2PC. The race condition is between two background flush threads trying to install flush results to the MANIFEST. Consider an example database with two column families: "default" (cfd0) and "cf1" (cfd1). Initially, both column families have one mutable (active) memtable whose data backed by 6.log. 1. Trigger a manual flush for "cf1", creating a 7.log 2. Insert another key to "default", and trigger flush for "default", creating 8.log 3. BgFlushThread1 finishes writing 9.sst 4. BgFlushThread2 finishes writing 10.sst ``` Time BgFlushThread1 BgFlushThread2 | mutex_.Lock() | precompute min_wal_to_keep as 6 | mutex_.Unlock() | mutex_.Lock() | precompute min_wal_to_keep as 6 | join MANIFEST write queue and mutex_.Unlock() | write to MANIFEST | mutex_.Lock() | cfd1->log_number = 7 | Signal bg_flush_2 and mutex_.Unlock() | wake up and mutex_.Lock() | cfd0->log_number = 8 | FindObsoleteFiles() with job_context->log_number == 7 | mutex_.Unlock() | PurgeObsoleteFiles() deletes 6.log V ``` As shown in the above, BgFlushThread2 thinks that the min wal to keep is 6.log because "cf1" has unflushed data in 6.log (cf1.log_number=6). Similarly, BgThread1 thinks that min wal to keep is also 6.log because "default" has unflushed data (default.log_number=6). No WAL deletion will be written to MANIFEST because 6 is equal to `versions_->wals_.min_wal_number_to_keep`, due to https://github.com/facebook/rocksdb/blob/7.1.fb/db/memtable_list.cc#L513:L514. The bg flush thread that finishes last will perform file purging. `job_context.log_number` will be evaluated as 7, i.e. the min wal that contains unflushed data, causing 6.log to be deleted. However, MANIFEST thinks 6.log should still exist. If you close the db at this point, you won't be able to re-open it if `track_and_verify_wal_in_manifest` is true. We must handle the case of multiple bg flush threads, and it is difficult for one bg flush thread to know the correct min wal number until the other bg flush threads have finished committing to the manifest and updated the `cfd::log_number`. To fix this issue, we rename an existing variable `min_log_number_to_keep_2pc` to `min_log_number_to_keep`, and use it to track WAL file deletion in non-2pc mode as well. This variable is updated only 1) during recovery with mutex held, or 2) in the MANIFEST write thread. `min_log_number_to_keep` means RocksDB will delete WALs below it, although there may be WALs above it which are also obsolete. Formally, we will have [min_wal_to_keep, max_obsolete_wal]. During recovery, we make sure that only WALs above max_obsolete_wal are checked and added back to `alive_log_files_`. Pull Request resolved: https://github.com/facebook/rocksdb/pull/9715 Test Plan: ``` make check ``` Also ran stress test below (with asan) to make sure it completes successfully. ``` TEST_TMPDIR=/dev/shm/rocksdb OPT=-g ASAN_OPTIONS=disable_coredump=0 \ CRASH_TEST_EXT_ARGS=--compression_type=zstd SKIP_FORMAT_BUCK_CHECKS=1 \ make J=52 -j52 blackbox_asan_crash_test ``` Reviewed By: ltamasi Differential Revision: D34984412 Pulled By: riversand963 fbshipit-source-id: c7b21a8d84751bb55ea79c9f387103d21b231005
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由 Yanqin Jin 提交于
Summary: Originally, a corruption will be returned by `DBImpl::WriteImpl(batch...)` if batch is null. This is inaccurate since there is no data corruption. Return `Status::InvalidArgument()` instead. Pull Request resolved: https://github.com/facebook/rocksdb/pull/9744 Test Plan: make check Reviewed By: ltamasi Differential Revision: D35086268 Pulled By: riversand963 fbshipit-source-id: 677397b007a53bc25210eac0178d49c9797b5951
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由 Mark Callaghan 提交于
Summary: This changes db_bench to fail at startup for invalid compression types. It had been changing them to Snappy. For other invalid options it fails at startup. This is for https://github.com/facebook/rocksdb/issues/9621 Pull Request resolved: https://github.com/facebook/rocksdb/pull/9729 Test Plan: This continues to work: ./db_bench --benchmarks=fillrandom --compression_type=lz4 This now fails rather than changing the compression type to Snappy ./db_bench --benchmarks=fillrandom --compression_type=lz44 Cannot parse compression type 'lz44' Reviewed By: jay-zhuang Differential Revision: D35081323 Pulled By: mdcallag fbshipit-source-id: 9b38c835abddce11aa7feb235df63f53cf829981
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由 Peter Dillinger 提交于
Summary: Bloom filters generated by pre-7.0 releases are not read by 7.0.x releases (and vice-versa) due to changes to FilterPolicy::Name() in https://github.com/facebook/rocksdb/issues/9590. This can severely impact read performance and read I/O on upgrade or downgrade with existing DB, but not data correctness. To fix, we go back using the old, unified name in SST metadata but (for a while anyway) recognize the aliases that could be generated by early 7.0.x releases. This unfortunately requires a public API change to avoid interfering with all the good changes from https://github.com/facebook/rocksdb/issues/9590, but the API change only affects users with custom FilterPolicy, which should be very few. Pull Request resolved: https://github.com/facebook/rocksdb/pull/9736 Test Plan: manual Generate DBs with ``` ./db_bench.7.0 -db=/dev/shm/rocksdb.7.0 -bloom_bits=10 -cache_index_and_filter_blocks=1 -benchmarks=fillrandom -num=10000000 -compaction_style=2 -fifo_compaction_max_table_files_size_mb=10000 -fifo_compaction_allow_compaction=0 ``` and similar. Compare with ``` for IMPL in 6.29 7.0 fixed; do for DB in 6.29 7.0 fixed; do echo "Testing $IMPL on $DB:"; ./db_bench.$IMPL -db=/dev/shm/rocksdb.$DB -use_existing_db -readonly -bloom_bits=10 -benchmarks=readrandom -num=10000000 -compaction_style=2 -fifo_compaction_max_table_files_size_mb=10000 -fifo_compaction_allow_compaction=0 -duration=10 2>&1 | grep micros/op; done; done ``` Results: ``` Testing 6.29 on 6.29: readrandom : 34.381 micros/op 29085 ops/sec; 3.2 MB/s (291999 of 291999 found) Testing 6.29 on 7.0: readrandom : 190.443 micros/op 5249 ops/sec; 0.6 MB/s (52999 of 52999 found) Testing 6.29 on fixed: readrandom : 40.148 micros/op 24907 ops/sec; 2.8 MB/s (249999 of 249999 found) Testing 7.0 on 6.29: readrandom : 229.430 micros/op 4357 ops/sec; 0.5 MB/s (43999 of 43999 found) Testing 7.0 on 7.0: readrandom : 33.348 micros/op 29986 ops/sec; 3.3 MB/s (299999 of 299999 found) Testing 7.0 on fixed: readrandom : 152.734 micros/op 6546 ops/sec; 0.7 MB/s (65999 of 65999 found) Testing fixed on 6.29: readrandom : 32.024 micros/op 31224 ops/sec; 3.5 MB/s (312999 of 312999 found) Testing fixed on 7.0: readrandom : 33.990 micros/op 29390 ops/sec; 3.3 MB/s (294999 of 294999 found) Testing fixed on fixed: readrandom : 28.714 micros/op 34825 ops/sec; 3.9 MB/s (348999 of 348999 found) ``` Just paying attention to order of magnitude of ops/sec (short test durations, lots of noise), it's clear that with the fix we can read <= 6.29 & >= 7.0 at full speed, where neither 6.29 nor 7.0 can on both. And 6.29 release can properly read fixed DB at full speed. Reviewed By: siying, ajkr Differential Revision: D35057844 Pulled By: pdillinger fbshipit-source-id: a46893a6af4bf084375ebe4728066d00eb08f050
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由 Mark Callaghan 提交于
Summary: This is for https://github.com/facebook/rocksdb/issues/9709 and add two lines to the end of DB Stats for num-running-compactions and num-running-flushes. For example ... ** DB Stats ** Uptime(secs): 6.0 total, 1.0 interval Cumulative writes: 915K writes, 915K keys, 915K commit groups, 1.0 writes per commit group, ingest: 0.11 GB, 18.95 MB/s Cumulative WAL: 915K writes, 0 syncs, 915000.00 writes per sync, written: 0.11 GB, 18.95 MB/s Cumulative stall: 00:00:0.000 H:M:S, 0.0 percent Interval writes: 133K writes, 133K keys, 133K commit groups, 1.0 writes per commit group, ingest: 16.62 MB, 16.53 MB/s Interval WAL: 133K writes, 0 syncs, 133000.00 writes per sync, written: 0.02 GB, 16.53 MB/s Interval stall: 00:00:0.000 H:M:S, 0.0 percent num-running-compactions: 0 num-running-flushes: 0 Pull Request resolved: https://github.com/facebook/rocksdb/pull/9726 Reviewed By: jay-zhuang Differential Revision: D35066759 Pulled By: mdcallag fbshipit-source-id: c161fadd3c15c5aa715a820dab6bfedb46dc099b
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- 23 3月, 2022 4 次提交
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由 Yanqin Jin 提交于
Summary: Before this PR, the following command prints only the default column family's information in the end: ``` ldb --db=. --hex manifest_dump --verbose ``` We should print all column families instead. Pull Request resolved: https://github.com/facebook/rocksdb/pull/9719 Test Plan: `make check` makes sure nothing breaks. Generate a DB, use the above command to verify all column families are printed. Reviewed By: akankshamahajan15 Differential Revision: D34992453 Pulled By: riversand963 fbshipit-source-id: de1d38c4539cd89f74e1a6240ad7a6e2416bf198
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由 Akanksha Mahajan 提交于
Summary: Add async_io Read option in db_bench Pull Request resolved: https://github.com/facebook/rocksdb/pull/9735 Test Plan: ./db_bench -use_existing_db=true -db=/tmp/prefix_scan_prefetch_main -benchmarks="seekrandom" -key_size=32 -value_size=512 -num=5000000 -use_direct_reads=true -seek_nexts=327680 -duration=120 -ops_between_duration_checks=1 -async_io=1 Reviewed By: riversand963 Differential Revision: D35058482 Pulled By: akankshamahajan15 fbshipit-source-id: 1522b638c79f6d85bb7408c67f6ab76dbabeeee7
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由 Mark Callaghan 提交于
Summary: …in order This fixes https://github.com/facebook/rocksdb/issues/9650 For db_bench --benchmarks=fillseq --num_multi_db=X it loads databases in sequence rather than randomly choosing a database per Put. The benefits are: 1) avoids long delays between flushing memtables 2) avoids flushing memtables for all of them at the same point in time 3) puts same number of keys per database so that query tests will find keys as expected Pull Request resolved: https://github.com/facebook/rocksdb/pull/9713 Test Plan: Using db_bench.1 without the change and db_bench.2 with the change: for i in 1 2; do rm -rf /data/m/rx/* ; time ./db_bench.$i --db=/data/m/rx --benchmarks=fillseq --num_multi_db=4 --num=10000000; du -hs /data/m/rx ; done --- without the change fillseq : 3.188 micros/op 313682 ops/sec; 34.7 MB/s real 2m7.787s user 1m52.776s sys 0m46.549s 2.7G /data/m/rx --- with the change fillseq : 3.149 micros/op 317563 ops/sec; 35.1 MB/s real 2m6.196s user 1m51.482s sys 0m46.003s 2.7G /data/m/rx Also, temporarily added a printf to confirm that the code switches to the next database at the right time ZZ switch to db 1 at 10000000 ZZ switch to db 2 at 20000000 ZZ switch to db 3 at 30000000 for i in 1 2; do rm -rf /data/m/rx/* ; time ./db_bench.$i --db=/data/m/rx --benchmarks=fillseq,readrandom --num_multi_db=4 --num=100000; du -hs /data/m/rx ; done --- without the change, smaller database, note that not all keys are found by readrandom because databases have < and > --num keys fillseq : 3.176 micros/op 314805 ops/sec; 34.8 MB/s readrandom : 1.913 micros/op 522616 ops/sec; 57.7 MB/s (99873 of 100000 found) --- with the change, smaller database, note that all keys are found by readrandom fillseq : 3.110 micros/op 321566 ops/sec; 35.6 MB/s readrandom : 1.714 micros/op 583257 ops/sec; 64.5 MB/s (100000 of 100000 found) Reviewed By: jay-zhuang Differential Revision: D35030168 Pulled By: mdcallag fbshipit-source-id: 2a18c4ec571d954cf5a57b00a11802a3608823ee
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由 gitbw95 提交于
Summary: The param name force_erase may be misleading, since the handle is erased only if it has last reference even if the param is set true. Pull Request resolved: https://github.com/facebook/rocksdb/pull/9728 Reviewed By: pdillinger Differential Revision: D35038673 Pulled By: gitbw95 fbshipit-source-id: 0d16d1e8fed17b97eba7fb53207119332f659a5f
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- 22 3月, 2022 5 次提交
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由 Hui Xiao 提交于
Summary: As title Pull Request resolved: https://github.com/facebook/rocksdb/pull/9727 Test Plan: no code change Reviewed By: ajkr Differential Revision: D35034541 Pulled By: hx235 fbshipit-source-id: ae839f23db1bdb9e5f787ca653a7685beb2ada68
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由 Mark Callaghan 提交于
Summary: Changes: * improves monitoring by displaying average size of a Put value and average scan length * forces the minimum value size to be 10. Before this it was 0 if you didn't set the distribution parameters. * uses reasonable defaults for the distribution parameters that determine value size and scan length * includes seeks in "reads ... found" message, before this they were missing This is for https://github.com/facebook/rocksdb/issues/9672 Pull Request resolved: https://github.com/facebook/rocksdb/pull/9711 Test Plan: Before this change: ./db_bench --benchmarks=fillseq,mixgraph --mix_get_ratio=50 --mix_put_ratio=25 --mix_seek_ratio=25 --num=100000 --value_k=0.2615 --value_sigma=25.45 --iter_k=2.517 --iter_sigma=14.236 fillseq : 4.289 micros/op 233138 ops/sec; 25.8 MB/s mixgraph : 18.461 micros/op 54166 ops/sec; 755.0 MB/s ( Gets:50164 Puts:24919 Seek:24917 of 50164 in 75081 found) After this change: ./db_bench --benchmarks=fillseq,mixgraph --mix_get_ratio=50 --mix_put_ratio=25 --mix_seek_ratio=25 --num=100000 --value_k=0.2615 --value_sigma=25.45 --iter_k=2.517 --iter_sigma=14.236 fillseq : 3.974 micros/op 251553 ops/sec; 27.8 MB/s mixgraph : 16.722 micros/op 59795 ops/sec; 833.5 MB/s ( Gets:50164 Puts:24919 Seek:24917, reads 75081 in 75081 found, avg size: 36.0 value, 504.9 scan) Reviewed By: jay-zhuang Differential Revision: D35030190 Pulled By: mdcallag fbshipit-source-id: d8f555f28d869f752ddb674a524108884511b151
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由 KNOEEE 提交于
Summary: Multiplier here should be 1e6 to get microseconds. Pull Request resolved: https://github.com/facebook/rocksdb/pull/9695 Reviewed By: ajkr Differential Revision: D34897086 Pulled By: jay-zhuang fbshipit-source-id: 9c1d0811ea740ba0a007edc2da199edbd000b88b
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由 duyuqi 提交于
Summary: c api release snapshot will core dump when enable inplace_update_support and create snapshot Pull Request resolved: https://github.com/facebook/rocksdb/pull/9471 Reviewed By: akankshamahajan15 Differential Revision: D34965103 Pulled By: riversand963 fbshipit-source-id: c3aeeb9ea7126c2eda1466102794fecf57b6ab77
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由 Jay Zhuang 提交于
Summary: Pull Request resolved: https://github.com/facebook/rocksdb/pull/9714 Reviewed By: ajkr Differential Revision: D34983675 Pulled By: jay-zhuang fbshipit-source-id: 0252ec6ee38a0b960df4c92791c7c2bcbfba5ad8
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- 21 3月, 2022 1 次提交
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由 Akanksha Mahajan 提交于
Summary: In FilePrefetchBuffer if reads are sequential, after prefetching call ReadAsync API to prefetch data asynchronously so that in next prefetching data will be available. Data prefetched asynchronously will be readahead_size/2. It uses two buffers, one for synchronous prefetching and one for asynchronous. In case, the data is overlapping, the data is copied from both buffers to third buffer to make it continuous. This feature is under ReadOptions::async_io and is under experimental. Pull Request resolved: https://github.com/facebook/rocksdb/pull/9674 Test Plan: 1. Add new unit tests 2. Run **db_stress** to make sure nothing crashes. - Normal prefetch without `async_io` ran successfully: ``` export CRASH_TEST_EXT_ARGS=" --async_io=0" make crash_test -j ``` 3. **Run Regressions**. i) Main branch without any change for normal prefetching with async_io disabled: ``` ./db_bench -db=/tmp/prefix_scan_prefetch_main -benchmarks="fillseq" -key_size=32 -value_size=512 -num=5000000 - use_direct_io_for_flush_and_compaction=true -target_file_size_base=16777216 ``` ``` ./db_bench -use_existing_db=true -db=/tmp/prefix_scan_prefetch_main -benchmarks="seekrandom" -key_size=32 -value_size=512 -num=5000000 -use_direct_reads=true -seek_nexts=327680 -duration=120 -ops_between_duration_checks=1 Initializing RocksDB Options from the specified file Initializing RocksDB Options from command-line flags RocksDB: version 7.0 Date: Thu Mar 17 13:11:34 2022 CPU: 24 * Intel Core Processor (Broadwell) CPUCache: 16384 KB Keys: 32 bytes each (+ 0 bytes user-defined timestamp) Values: 512 bytes each (256 bytes after compression) Entries: 5000000 Prefix: 0 bytes Keys per prefix: 0 RawSize: 2594.0 MB (estimated) FileSize: 1373.3 MB (estimated) Write rate: 0 bytes/second Read rate: 0 ops/second Compression: Snappy Compression sampling rate: 0 Memtablerep: SkipListFactory Perf Level: 1 ------------------------------------------------ DB path: [/tmp/prefix_scan_prefetch_main] seekrandom : 483618.390 micros/op 2 ops/sec; 338.9 MB/s (249 of 249 found) ``` ii) normal prefetching after changes with async_io disable: ``` ./db_bench -use_existing_db=true -db=/tmp/prefix_scan_prefetch_withchange -benchmarks="seekrandom" -key_size=32 -value_size=512 -num=5000000 -use_direct_reads=true -seek_nexts=327680 -duration=120 -ops_between_duration_checks=1 Initializing RocksDB Options from the specified file Initializing RocksDB Options from command-line flags RocksDB: version 7.0 Date: Thu Mar 17 14:11:31 2022 CPU: 24 * Intel Core Processor (Broadwell) CPUCache: 16384 KB Keys: 32 bytes each (+ 0 bytes user-defined timestamp) Values: 512 bytes each (256 bytes after compression) Entries: 5000000 Prefix: 0 bytes Keys per prefix: 0 RawSize: 2594.0 MB (estimated) FileSize: 1373.3 MB (estimated) Write rate: 0 bytes/second Read rate: 0 ops/second Compression: Snappy Compression sampling rate: 0 Memtablerep: SkipListFactory Perf Level: 1 ------------------------------------------------ DB path: [/tmp/prefix_scan_prefetch_withchange] seekrandom : 471347.227 micros/op 2 ops/sec; 348.1 MB/s (255 of 255 found) ``` Reviewed By: anand1976 Differential Revision: D34731543 Pulled By: akankshamahajan15 fbshipit-source-id: 8e23aa93453d5fe3c672b9231ad582f60207937f
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- 19 3月, 2022 3 次提交
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由 Peter Dillinger 提交于
Summary: The goal of this change is to allow changes to the "current" (in FileSystem) file temperatures to feed back into DB metadata, so that they can inform decisions and stats reporting. In part because of modular code factoring, it doesn't seem easy to do this automagically, where opening an SST file and observing current Temperature different from expected would trigger a change in metadata and DB manifest write (essentially giving the deep read path access to the write path). It is also difficult to do this while the DB is open because of the limitations of LogAndApply. This change allows updating file temperature metadata on a closed DB using an experimental utility function UpdateManifestForFilesState() or `ldb update_manifest --update_temperatures`. This should suffice for "migration" scenarios where outside tooling has placed or re-arranged DB files into a (different) tiered configuration without going through RocksDB itself (currently, only compaction can change temperature metadata). Some details: * Refactored and added unit test for `ldb unsafe_remove_sst_file` because of shared functionality * Pulled in autovector.h changes from https://github.com/facebook/rocksdb/issues/9546 to fix SuperVersionContext move constructor (related to an older draft of this change) Possible follow-up work: * Support updating manifest with file checksums, such as when a new checksum function is used and want existing DB metadata updated for it. * It's possible that for some repair scenarios, lighter weight than full repair, we might want to support UpdateManifestForFilesState() to modify critical file details like size or checksum using same algorithm. But let's make sure these are differentiated from modifying file details in ways that don't suspect corruption (or require extreme trust). Pull Request resolved: https://github.com/facebook/rocksdb/pull/9683 Test Plan: unit tests added Reviewed By: jay-zhuang Differential Revision: D34798828 Pulled By: pdillinger fbshipit-source-id: cfd83e8fb10761d8c9e7f9c020d68c9106a95554
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由 Yanqin Jin 提交于
Summary: On CircleCI MacOS instances, we have been seeing the following assertion error: ``` Assertion failed: (alive_log_files_tail_ == alive_log_files_.rbegin()), function WriteToWAL, file /Users/distiller/project/db/db_impl/db_impl_write.cc, line 1213. Received signal 6 (Abort trap: 6) #0 0x1 https://github.com/facebook/rocksdb/issues/1 abort (in libsystem_c.dylib) + 120 https://github.com/facebook/rocksdb/issues/2 err (in libsystem_c.dylib) + 0 https://github.com/facebook/rocksdb/issues/3 rocksdb::DBImpl::WriteToWAL(rocksdb::WriteBatch const&, rocksdb::log::Writer*, unsigned long long*, unsigned long long*, rocksdb::Env::IOPriority, bool, bool) (in librocksdb.7.0.0.dylib) (db_impl_write.cc:1213) https://github.com/facebook/rocksdb/issues/4 rocksdb::DBImpl::WriteToWAL(rocksdb::WriteThread::WriteGroup const&, rocksdb::log::Writer*, unsigned long long*, bool, bool, unsigned long long) (in librocksdb.7.0.0.dylib) (db_impl_write.cc:1251) https://github.com/facebook/rocksdb/issues/5 rocksdb::DBImpl::WriteImpl(rocksdb::WriteOptions const&, rocksdb::WriteBatch*, rocksdb::WriteCallback*, unsigned long long*, unsigned long long, bool, unsigned long long*, unsigned long, rocksdb::PreReleaseCallback*) (in librocksdb.7.0.0.dylib) (db_impl_ rite.cc:421) https://github.com/facebook/rocksdb/issues/6 rocksdb::DBImpl::Write(rocksdb::WriteOptions const&, rocksdb::WriteBatch*) (in librocksdb.7.0.0.dylib) (db_impl_write.cc:109) https://github.com/facebook/rocksdb/issues/7 rocksdb::DB::Put(rocksdb::WriteOptions const&, rocksdb::ColumnFamilyHandle*, rocksdb::Slice const&, rocksdb::Slice const&, rocksdb::Slice const&) (in librocksdb.7.0.0.dylib) (db_impl_write.cc:2159) https://github.com/facebook/rocksdb/issues/8 rocksdb::DBImpl::Put(rocksdb::WriteOptions const&, rocksdb::ColumnFamilyHandle*, rocksdb::Slice const&, rocksdb::Slice const&, rocksdb::Slice const&) (in librocksdb.7.0.0.dylib) (db_impl_write.cc:37) https://github.com/facebook/rocksdb/issues/9 rocksdb::DB::Put(rocksdb::WriteOptions const&, rocksdb::Slice const&, rocksdb::Slice const&, rocksdb::Slice const&) (in librocksdb.7.0.0.dylib) (db.h:382) https://github.com/facebook/rocksdb/issues/10 rocksdb::DBBasicTestWithTimestampPrefixSeek_IterateWithPrefix_Test::TestBody() (in db_with_timestamp_basic_test) (db_with_timestamp_basic_test.cc:2926) https://github.com/facebook/rocksdb/issues/11 void testing::internal::HandleSehExceptionsInMethodIfSupported<testing::Test, void>(testing::Test*, void (testing::Test::*)(), char const*) (in db_with_timestamp_basic_test) (gtest-all.cc:3899) https://github.com/facebook/rocksdb/issues/12 void testing::internal::HandleExceptionsInMethodIfSupported<testing::Test, void>(testing::Test*, void (testing::Test::*)(), char const*) (in db_with_timestamp_basic_test) (gtest-all.cc:3935) https://github.com/facebook/rocksdb/issues/13 testing::Test::Run() (in db_with_timestamp_basic_test) (gtest-all.cc:3980) https://github.com/facebook/rocksdb/issues/14 testing::TestInfo::Run() (in db_with_timestamp_basic_test) (gtest-all.cc:4153) https://github.com/facebook/rocksdb/issues/15 testing::TestCase::Run() (in db_with_timestamp_basic_test) (gtest-all.cc:4266) https://github.com/facebook/rocksdb/issues/16 testing::internal::UnitTestImpl::RunAllTests() (in db_with_timestamp_basic_test) (gtest-all.cc:6632) https://github.com/facebook/rocksdb/issues/17 bool testing::internal::HandleSehExceptionsInMethodIfSupported<testing::internal::UnitTestImpl, bool>(testing::internal::UnitTestImpl*, bool (testing::internal::UnitTestImpl::*)(), char const*) (in db_with_timestamp_basic_test) (gtest-all.cc:3899) https://github.com/facebook/rocksdb/issues/18 bool testing::internal::HandleExceptionsInMethodIfSupported<testing::internal::UnitTestImpl, bool>(testing::internal::UnitTestImpl*, bool (testing::internal::UnitTestImpl::*)(), char const*) (in db_with_timestamp_basic_test) (gtest-all.cc:3935) https://github.com/facebook/rocksdb/issues/19 testing::UnitTest::Run() (in db_with_timestamp_basic_test) (gtest-all.cc:6242) https://github.com/facebook/rocksdb/issues/20 RUN_ALL_TESTS() (in db_with_timestamp_basic_test) (gtest.h:22110) https://github.com/facebook/rocksdb/issues/21 main (in db_with_timestamp_basic_test) (db_with_timestamp_basic_test.cc:3150) https://github.com/facebook/rocksdb/issues/22 start (in libdyld.dylib) + 1 ``` It's likely caused by concurrent, unprotected access to the deque, even though `back()` is never popped, and we are comparing `rbegin()` with a cached `riterator`. To be safe, do the comparison only if we have mutex. Pull Request resolved: https://github.com/facebook/rocksdb/pull/9717 Test Plan: One example Ssh to one CircleCI MacOS instance. ``` gtest-parallel -r 1000 -w 8 ./db_test --gtest_filter=DBTest.FlushesInParallelWithCompactRange ``` Reviewed By: pdillinger Differential Revision: D34990696 Pulled By: riversand963 fbshipit-source-id: 62dd48ae6fedbda53d0a64d73de9b948b4c26eee
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由 Peter Dillinger 提交于
Summary: The primary goal of this change is to add support for backing up and restoring (applying on restore) file temperature metadata, without committing to either the DB manifest or the FS reported "current" temperatures being exclusive "source of truth". To achieve this goal, we need to add temperature information to backup metadata, which requires updated backup meta schema. Fortunately I prepared for this in https://github.com/facebook/rocksdb/issues/8069, which began forward compatibility in version 6.19.0 for this kind of schema update. (Previously, backup meta schema was not extensible! Making this schema update public will allow some other "nice to have" features like taking backups with hard links, and avoiding crc32c checksum computation when another checksum is already available.) While schema version 2 is newly public, the default schema version is still 1. Until we change the default, users will need to set to 2 to enable features like temperature data backup+restore. New metadata like temperature information will be ignored with a warning in versions before this change and since 6.19.0. The metadata is considered ignorable because a functioning DB can be restored without it. Some detail: * Some renaming because "future schema" is now just public schema 2. * Initialize some atomics in TestFs (linter reported) * Add temperature hint support to SstFileDumper (used by BackupEngine) Pull Request resolved: https://github.com/facebook/rocksdb/pull/9660 Test Plan: related unit test majorly updated for the new functionality, including some shared testing support for tracking temperatures in a FS. Some other tests and testing hooks into production code also updated for making the backup meta schema change public. Reviewed By: ajkr Differential Revision: D34686968 Pulled By: pdillinger fbshipit-source-id: 3ac1fa3e67ee97ca8a5103d79cc87d872c1d862a
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- 18 3月, 2022 2 次提交
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由 Yanqin Jin 提交于
Fix race condition caused by concurrent accesses to forceMmapOff_ when opening Posix WritableFile (#9685) Summary: Pull Request resolved: https://github.com/facebook/rocksdb/pull/9685 Our TSAN reports a race condition as follows when running test ``` gtest-parallel -r 100 ./external_sst_file_test --gtest_filter=ExternalSSTFileTest.MultiThreaded ``` leads to the following ``` WARNING: ThreadSanitizer: data race (pid=2683148) Write of size 1 at 0x556fede63340 by thread T7: #0 rocksdb::(anonymous namespace)::PosixFileSystem::OpenWritableFile(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, rocksdb::FileOptions const&, bool, std::unique_ptr<rocksdb::FSWritableFile, std::default_delete<rocksdb::FSWritableFile> >*, rocksdb::IODebugContext*) internal_repo_rocksdb/repo/env/fs_posix.cc:334 (external_sst_file_test+0xb61ac4) #1 rocksdb::(anonymous namespace)::PosixFileSystem::ReopenWritableFile(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, rocksdb::FileOptions const&, std::unique_ptr<rocksdb::FSWritableFile, std::default_delete<rocksdb::FSWritableFile> >*, rocksdb::IODebugContext*) internal_repo_rocksdb/repo/env/fs_posix.cc:382 (external_sst_file_test+0xb5ba96) #2 rocksdb::CompositeEnv::ReopenWritableFile(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::unique_ptr<rocksdb::WritableFile, std::default_delete<rocksdb::WritableFile> >*, rocksdb::EnvOptions const&) internal_repo_rocksdb/repo/env/composite_env.cc:334 (external_sst_file_test+0xa6ab7f) #3 rocksdb::EnvWrapper::ReopenWritableFile(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::unique_ptr<rocksdb::WritableFile, std::default_delete<rocksdb::WritableFile> >*, rocksdb::EnvOptions const&) internal_repo_rocksdb/repo/include/rocksdb/env.h:1428 (external_sst_file_test+0x561f3e) Previous read of size 1 at 0x556fede63340 by thread T4: #0 rocksdb::(anonymous namespace)::PosixFileSystem::OpenWritableFile(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, rocksdb::FileOptions const&, bool, std::unique_ptr<rocksdb::FSWritableFile, std::default_delete<rocksdb::FSWritableFile> >*, rocksdb::IODebugContext*) internal_repo_rocksdb/repo/env/fs_posix.cc:328 (external_sst_file_test+0xb61a70) #1 rocksdb::(anonymous namespace)::PosixFileSystem::ReopenWritableFile(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator ... ``` Fix by making sure the following block gets executed only once: ``` if (!checkedDiskForMmap_) { // this will be executed once in the program's lifetime. // do not use mmapWrite on non ext-3/xfs/tmpfs systems. if (!SupportsFastAllocate(fname)) { forceMmapOff_ = true; } checkedDiskForMmap_ = true; } ``` Reviewed By: pdillinger Differential Revision: D34780308 fbshipit-source-id: b761f66b24c8b5b8389d86ea371c8542b8d869d5
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由 Jay Zhuang 提交于
Summary: The designed sync point may not be hit if trash file is generated faster than deleting. Then the file will be deleted directly instead of waiting for background trash empty thread to do it. Increase SstFileManager Trash/DB ratio to avoid that. Pull Request resolved: https://github.com/facebook/rocksdb/pull/9706 Test Plan: `gtest-parallel ./delete_scheduler_test --gtest_filter=DeleteSchedulerTest.StartBGEmptyTrashMultipleTimes -r 10000 -w 100` It was likely to happen on one of the host. Reviewed By: riversand963 Differential Revision: D34964735 Pulled By: jay-zhuang fbshipit-source-id: bb78015489b5f6b3f11783aae7e5853ea197702c
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- 17 3月, 2022 3 次提交
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由 Jay Zhuang 提交于
Summary: ``` conversion from 'size_t' to 'uLong', possible loss of data ``` Fix https://github.com/facebook/rocksdb/issues/9688 Pull Request resolved: https://github.com/facebook/rocksdb/pull/9699 Reviewed By: riversand963 Differential Revision: D34901116 Pulled By: jay-zhuang fbshipit-source-id: 969148a7a8c023449bd85055a1f0eec71d0a9b3f
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由 Yanqin Jin 提交于
Summary: Test only, no change to functionality. Extremely low risk of library regression. Update test key generation by maintaining existing and non-existing keys. Update db_crashtest.py to drive multiops_txn stress test for both write-committed and write-prepared. Add a make target 'blackbox_crash_test_with_multiops_txn'. Running the following commands caught the bug exposed in https://github.com/facebook/rocksdb/issues/9571. ``` $rm -rf /tmp/rocksdbtest/* $./db_stress -progress_reports=0 -test_multi_ops_txns -use_txn -clear_column_family_one_in=0 \ -column_families=1 -writepercent=0 -delpercent=0 -delrangepercent=0 -customopspercent=60 \ -readpercent=20 -prefixpercent=0 -iterpercent=20 -reopen=0 -ops_per_thread=1000 -ub_a=10000 \ -ub_c=100 -destroy_db_initially=0 -key_spaces_path=/dev/shm/key_spaces_desc -threads=32 -read_fault_one_in=0 $./db_stress -progress_reports=0 -test_multi_ops_txns -use_txn -clear_column_family_one_in=0 -column_families=1 -writepercent=0 -delpercent=0 -delrangepercent=0 -customopspercent=60 -readpercent=20 \ -prefixpercent=0 -iterpercent=20 -reopen=0 -ops_per_thread=1000 -ub_a=10000 -ub_c=100 -destroy_db_initially=0 \ -key_spaces_path=/dev/shm/key_spaces_desc -threads=32 -read_fault_one_in=0 ``` Running the following command caught a bug which will be fixed in https://github.com/facebook/rocksdb/issues/9648 . ``` $TEST_TMPDIR=/dev/shm make blackbox_crash_test_with_multiops_wc_txn ``` Pull Request resolved: https://github.com/facebook/rocksdb/pull/9568 Reviewed By: jay-zhuang Differential Revision: D34308154 Pulled By: riversand963 fbshipit-source-id: 99ff1b65c19b46c471d2f2d3b47adcd342a1b9e7
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由 Peter Dillinger 提交于
Summary: some Makefile refactoring to support Meta-internal workflows, and add a basic crash_test flow to CircleCI Pull Request resolved: https://github.com/facebook/rocksdb/pull/9702 Test Plan: CI Reviewed By: riversand963 Differential Revision: D34934315 Pulled By: pdillinger fbshipit-source-id: 67f17280096d8968d8e44459293f72fb6fe339f3
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- 16 3月, 2022 5 次提交
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由 anand76 提交于
Summary: Fix and enhance the background error recovery logic to handle the following situations - 1. Background read errors during flush/compaction (previously was resulting in unrecoverable state) 2. Fix auto recovery failure on read/write errors during atomic flush. It was failing due to a bug in setting the resuming_from_bg_err variable in AtomicFlushMemTablesToOutputFiles. Pull Request resolved: https://github.com/facebook/rocksdb/pull/9679 Test Plan: Add new unit tests in error_handler_fs_test Reviewed By: riversand963 Differential Revision: D34770097 Pulled By: anand1976 fbshipit-source-id: 136da973a28d684b9c74bdf668519b0cbbbe1742
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由 Jay Zhuang 提交于
Summary: In https://github.com/facebook/rocksdb/issues/9659, when `DisableManualCompaction()` is issued, the foreground manual compaction thread does not have to wait background compaction thread to finish. Which could be a problem that the user re-enable manual compaction with `EnableManualCompaction()`, it may re-enable the BG compaction which supposed be cancelled. This patch makes the FG compaction wait on `manual_compaction_state.done`, which either be set by BG compaction or Unschedule callback. Then when FG manual compaction thread returns, it should not have BG compaction running. So shared_ptr is no longer needed for `manual_compaction_state`. Pull Request resolved: https://github.com/facebook/rocksdb/pull/9694 Test Plan: a StressTest and unittest Reviewed By: ajkr Differential Revision: D34885472 Pulled By: jay-zhuang fbshipit-source-id: e6476175b43e8c59cd49f5c09241036a0716c274
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由 Yanqin Jin 提交于
Summary: PR9686 makes `WriteToWAL()` call `assert(...!=rend())` while not holding db mutex or log mutex. Another thread may concurrently call `pop_front()`, causing race condition. To fix, assert only if mutex is held. Pull Request resolved: https://github.com/facebook/rocksdb/pull/9698 Test Plan: COMPILE_WITH_TSAN=1 make check Reviewed By: jay-zhuang Differential Revision: D34898535 Pulled By: riversand963 fbshipit-source-id: 1ddfa5bf1b6ae8d409cab6ff6e1b5321c6803da9
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由 ehds@qq.com 提交于
Summary: Replace `GetUserKey` with `ExtractUserKey` Pull Request resolved: https://github.com/facebook/rocksdb/pull/9664 Reviewed By: jay-zhuang Differential Revision: D34673571 Pulled By: ajkr fbshipit-source-id: 5acf7d0d1a45efce0ccbe505991acf76c9cdc461
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由 gukaifeng 提交于
Summary: In the original code, the value of `NO_FILE_OPENS` corresponding to the Ticker item will be increased regardless of whether the file is successfully opened or not. Even counts are repeated, which can lead to skewed counts. Pull Request resolved: https://github.com/facebook/rocksdb/pull/9677 Reviewed By: jay-zhuang Differential Revision: D34725733 Pulled By: ajkr fbshipit-source-id: 841234ed03802c0105fd2107d82a740265ead576
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