| ######################## |
| # ZooKeeper Client Settings |
| ######################## |
| |
| # zookeeper settings |
| zkSessionTimeoutSeconds=30 |
| zkNumRetries=0 |
| zkRetryStartBackoffMillis=100 |
| zkRetryMaxBackoffMillis=200 |
| # bkc zookeeper settings |
| bkcZKSessionTimeoutSeconds=60 |
| bkcZKNumRetries=20 |
| bkcZKRetryStartBackoffMillis=100 |
| bkcZKRetryMaxBackoffMillis=200 |
| |
| ######################## |
| # BookKeeper Client Settings |
| ######################## |
| |
| # bookkeeper client timeouts |
| bkcWriteTimeoutSeconds=10 |
| bkcReadTimeoutSeconds=1 |
| bkcNumWorkerThreads=16 |
| # bkcNumIOThreads=16 |
| bkc.numChannelsPerBookie=1 |
| bkc.enableTaskExecutionStats=true |
| bkc.connectTimeoutMillis=1000 |
| bkc.enablePerHostStats=true |
| |
| ######################## |
| # DL Settings |
| ######################## |
| |
| # lock timeout |
| lockTimeoutSeconds=0 |
| # dl worker threads |
| numWorkerThreads=16 |
| |
| ### Recovery Related Settings |
| |
| # recover log segments in background |
| recoverLogSegmentsInBackground=true |
| # disable max id in proxy |
| maxIdSanityCheck=true |
| # use allocator pool for proxy |
| enableLedgerAllocatorPool=false |
| # ledger allocator pool size |
| ledgerAllocatorPoolCoreSize=20 |
| # check stream exists or not |
| createStreamIfNotExists=true |
| # encode dc id in version |
| encodeDCIDInVersion=true |
| # logSegmentNameVersion |
| logSegmentNameVersion=1 |
| |
| ### Write Performance Related Settings |
| |
| # ensemble size |
| ensemble-size=3 |
| write-quorum-size=3 |
| ack-quorum-size=2 |
| bkc.ensemblePlacementPolicy=org.apache.bookkeeper.client.RackawareEnsemblePlacementPolicy |
| bkc.delayEnsembleChange=true |
| |
| # sync settings |
| # buffer size is large because when we rewrite we perform a very large write to persist |
| # all queue state at once (up to max queue memory size, ex. 16MB). the write will be |
| # throttled if it takes too long, which can hurt performance, so important to optimize |
| # for this case. |
| output-buffer-size=512000 |
| enableImmediateFlush=false |
| periodicFlushFrequencyMilliSeconds=6 |
| logFlushTimeoutSeconds=120 |
| |
| ### Ledger Rolling Related Settings |
| |
| # retention policy |
| retention-size=0 |
| # rolling ledgers (disable time rolling/enable size rolling) |
| rolling-interval=0 |
| |
| # max logsegment bytes=2GB |
| # much larger than max journal size, effectively never roll and let drpc do it |
| maxLogSegmentBytes=2147483648 |
| |
| # rolling concurrency |
| logSegmentRollingConcurrency=1 |
| # disable sanityCheckDelete |
| sanityCheckDelete=false |
| ledgerAllocatorPoolName=drpc-alloc-pool |
| |
| ### Readahead settings |
| |
| enableReadAhead=true |
| ReadAheadBatchSize=10 |
| ReadAheadMaxEntries=100 |
| ReadAheadWaitTime=10 |
| |
| ### Rate limit |
| |
| rpsSoftWriteLimit=1 |
| rpsHardWriteLimit=5 |
| rpsHardServiceLimit=15 |
| |
| ### Config |
| |
| dynamicConfigReloadIntervalSec=5 |
