| ######################## |
| # ZooKeeper Client Settings |
| ######################## |
| |
| # zookeeper settings |
| zkSessionTimeoutSeconds=60 |
| zkNumRetries=100 |
| zkRetryStartBackoffMillis=100 |
| zkRetryMaxBackoffMillis=200 |
| # bkc zookeeper settings |
| bkcZKSessionTimeoutSeconds=60 |
| bkcZKNumRetries=100 |
| bkcZKRetryStartBackoffMillis=100 |
| bkcZKRetryMaxBackoffMillis=200 |
| |
| ######################## |
| # BookKeeper Client Settings |
| ######################## |
| |
| # bookkeeper client timeouts |
| bkcReadTimeoutSeconds=20 |
| bkcNumWorkerThreads=16 |
| bkc.numChannelsPerBookie=1 |
| bkc.enableTaskExecutionStats=true |
| bkc.connectTimeoutMillis=200 |
| |
| ### Readers |
| bkc.firstSpeculativeReadTimeout = 10 |
| bkc.maxSpeculativeReadTimeout = 30 |
| bkc.firstSpeculativeReadLACTimeout = 10 |
| bkc.maxSpeculativeReadLACTimeout = 2000 |
| bkc.ensemblePlacementPolicy=org.apache.bookkeeper.client.RackawareEnsemblePlacementPolicy |
| ReadAheadMaxEntries = 1000 |
| ReadAheadBatchSize = 4 |
| numWorkerThreads = 16 |
| readLACLongPollTimeout = 10000 |
| traceReadAheadDeliveryLatency = true |
| traceReadAheadMetadataChanges = true |
| readTimeout = 20 |
| |
| ### Writers |
| |
| # Metadata Settings |
| # ledger metadata version that supports sequence id |
| ledger-metadata-layout=5 |
| # use allocator pool for proxy |
| enableLedgerAllocatorPool=false |
| # check stream exists or not |
| createStreamIfNotExists=true |
| # encode dc id in version |
| encodeDCIDInVersion=true |
| |
| ### Write Performance Related Settings |
| |
| # ensemble settings |
| ensemble-size=3 |
| write-quorum-size=3 |
| ack-quorum-size=2 |
| bkc.ensemblePlacementPolicy=org.apache.bookkeeper.client.RackawareEnsemblePlacementPolicy |
| |
| # flush policies |
| enableImmediateFlush=false |
| output-buffer-size=16000 |
| periodicFlushFrequencyMilliSeconds=10 |
| |
| # retention policy |
| retention-size=4 |
| # rolling ledgers (enable time rolling): 120 minutes = 2 hours |
| rolling-interval=120 |
| # max logsegment bytes : 2GB |
| maxLogSegmentBytes=2147483648 |
| # rolling concurrency |
| logSegmentRollingConcurrency=1 |
| # disable sanityCheckDelete |
| sanityCheckDelete=false |
| # compression codec |
| compressionType=lz4 |
| |
| ### Stats |
| # Exporting codahale stats |
| codahaleStatsHttpPort=10002 |
