Summary:
When num_file_reads_for_auto_readahead = 1, during seek, it would go for prefetchingextra data in second buffer along with seek data, that would lead to increase in read data and
discarded bytes.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/11560
Test Plan: Added unit test
Reviewed By: anand1976
Differential Revision: D47008102
Pulled By: akankshamahajan15
fbshipit-source-id: 566c6131cb5f968d5efb81fd0ab233ff7e534ab0
Summary:
Use another static object to join threads instead.
This change is motivated by a case in which some code using NewLRUCache() -> ShardedCacheBase -> SemiStructuredUniqueIdGen -> GenerateRawUniqueId() -> Env::Default() was happening
during static destruction.
I didn't see anything else in PosixEnv or base classes that would cause a problem by not
destroying. (WinEnv is already not destroyed; see env_default.cc)
Pull Request resolved: https://github.com/facebook/rocksdb/pull/11538UndefinedBehaviorSanitizer: undefined-behavior env/env_test.cc:3561:23 in
$
```
Test Plan:
test added, which would previously fail with UBSAN:
```
$ ./env_test --gtest_filter=*Destruct*
Note: Google Test filter = *Destruct*
[==========] Running 1 test from 1 test case.
[----------] Global test environment set-up.
[----------] 1 test from EnvTestMisc
[ RUN ] EnvTestMisc.StaticDestruction
[ OK ] EnvTestMisc.StaticDestruction (0 ms)
[----------] 1 test from EnvTestMisc (0 ms total)
[----------] Global test environment tear-down
[==========] 1 test from 1 test case ran. (0 ms total)
[ PASSED ] 1 test.
env/env_test.cc:3561:23: runtime error: member call on address 0x7f7b96671ca8 which does not point to an object of type 'rocksdb::Env'
0x7f7b96671ca8: note: object is of type 'N7rocksdb12ConfigurableE'
00 00 00 00 90 a7 f7 95 7b 7f 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
^~~~~~~~~~~~~~~~~~~~~~~
vptr for 'N7rocksdb12ConfigurableE'
Reviewed By: jowlyzhang
Differential Revision: D46737389
Pulled By: pdillinger
fbshipit-source-id: 0f80a443bf799ffc5641e898cf3a75f7d10a987b
Summary:
Fix a use-after-move issue in block.cc and added some unit tests.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/11505
Test Plan:
```
make all check
./block_test
```
Reviewed By: ltamasi
Differential Revision: D46506188
Pulled By: jowlyzhang
fbshipit-source-id: 316ed8ddd221c00b2bce2cf9fd47eea686cd74a5
Summary:
See new NOTE in HISTORY.md and unreleased_history/README.txt
Pull Request resolved: https://github.com/facebook/rocksdb/pull/11481
Test Plan: some manual testing on my CentOS 8 system
Reviewed By: jaykorean
Differential Revision: D46233342
Pulled By: pdillinger
fbshipit-source-id: daf59cf3dc907f450b469090dcc481a30a7d7c0d
