Tuning pool concurrency #3432
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Tuning pool concurrency #3432
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hangc0276
requested review from
eolivelli,
hangc0276,
nicoloboschi,
shoothzj and
zymap
dlg99
reviewed
Jul 28, 2022
Comment on lines
3875
to
3884
| Object writeCacheConf = this.getProperty(DbLedgerStorage.WRITE_CACHE_MAX_SIZE_MB); | ||
| if (writeCacheConf instanceof Number) { | ||
| writeCacheMb = ((Number) writeCacheConf).longValue(); | ||
| } else if (writeCacheConf == null) { | ||
| writeCacheMb = DbLedgerStorage.DEFAULT_WRITE_CACHE_MAX_SIZE_MB; | ||
| } else if (StringUtils.isEmpty(this.getString(DbLedgerStorage.WRITE_CACHE_MAX_SIZE_MB))) { | ||
| writeCacheMb = DbLedgerStorage.DEFAULT_WRITE_CACHE_MAX_SIZE_MB; | ||
| } else { | ||
| writeCacheMb = this.getLong(DbLedgerStorage.WRITE_CACHE_MAX_SIZE_MB); | ||
| } |
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I think all this can be done better by moving
long writeCacheMaxSize = getLongVariableOrDefault(conf, WRITE_CACHE_MAX_SIZE_MB,
DEFAULT_WRITE_CACHE_MAX_SIZE_MB) * MB;
long readCacheMaxSize = getLongVariableOrDefault(conf, READ_AHEAD_CACHE_MAX_SIZE_MB,
DEFAULT_READ_CACHE_MAX_SIZE_MB) * MB;
boolean directIOEntryLogger = getBooleanVariableOrDefault(conf, DIRECT_IO_ENTRYLOGGER, false);
and related config magic out of DbLedgerStorage into the ServerConfig
and then all you'd need to do is something like this.getWriteCacheMaxSize()
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Good suggestion, I green with @dlg99
-
move DbLedgerStorage.DEFAULT_WRITE_CACHE_MAX_SIZE_MB to ServerConfiguration.DEFAULT_WRITE_CACHE_MAX_SIZE_MB
-
use new code
long writeCacheMaxSize = getLongVariableOrDefault(conf, WRITE_CACHE_MAX_SIZE_MB, conf.getAllocatorPoolingConcurrency()) * MB;
long readCacheMaxSize = getLongVariableOrDefault(conf, READ_AHEAD_CACHE_MAX_SIZE_MB, conf.getAllocatorPoolingConcurrency()) * MB;
instead of
long writeCacheMaxSize = getLongVariableOrDefault(conf, WRITE_CACHE_MAX_SIZE_MB, DEFAULT_WRITE_CACHE_MAX_SIZE_MB) * MB;
long readCacheMaxSize = getLongVariableOrDefault(conf, READ_AHEAD_CACHE_MAX_SIZE_MB, DEFAULT_READ_CACHE_MAX_SIZE_MB) * MB;
StevenLuMT
requested changes
Jul 29, 2022
# Conflicts: # bookkeeper-server/src/main/java/org/apache/bookkeeper/conf/ServerConfiguration.java
hangc0276
requested changes
Jul 31, 2022
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| this.allocator = allocator; | ||
| this.numberOfDirs = ledgerDirsManager.getAllLedgerDirs().size(); | ||
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| log.info("Started Db Ledger Storage"); | ||
| log.info(" - Number of directories: {}", numberOfDirs); | ||
| log.info(" - Write cache size: {} MB", writeCacheMaxSize / MB); | ||
| log.info(" - Read Cache: {} MB", readCacheMaxSize / MB); | ||
| log.info(" - Write cache size: {} MB", writeCacheMaxSize / 1024 / 1024); |
| public int getAllocatorPoolingConcurrency() { | ||
| long writeCacheSize = this.getWriteCacheMaxSize(); | ||
| long readCacheSize = this.getReadCacheMaxSize(); | ||
| long availableDirectMemory = PlatformDependent.maxDirectMemory() - writeCacheSize - readCacheSize; |
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Please use PlatformDependent.estimateMaxDirectMemory() instead of PlatformDependent.maxDirectMemory(). Please refer to: #2989
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In dbLedgerStorage,
- If we use
DefaultEntryLogger, only the whole write-cache will be allocated at one time in the init state, and the read-cache will be allocated on-demand. - If we use
DirectEnryLogger, both the write-cache and the read-cache are allocated on-demand.
So I think we'd better keep the default implementation.
|
fix old workflow,please see #3455 for detail |
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Descriptions of the changes in this PR:
This is a patch #3001. Consider unpooled direct memory on DbLedgerStorage.