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HBASE-19416 Document dynamic configurations currently supported 

Signed-off-by: tedyu <yuzhihong@gmail.com>
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Reid Chan 2017-12-04 21:45:35 +08:00 committed by tedyu
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src/main/asciidoc/_chapters/configuration.adoc
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@ -1030,8 +1030,80 @@ Since HBase 1.0.0, it is possible to change a subset of the configuration withou
In the HBase shell, there are new operators, `update_config` and `update_all_config` that will prompt a server or all servers to reload configuration.
Only a subset of all configurations can currently be changed in the running server.
Here is an incomplete list: `hbase.regionserver.thread.compaction.large`, `hbase.regionserver.thread.compaction.small`, `hbase.regionserver.thread.split`, `hbase.regionserver.thread.merge`, as well as compaction policy and configurations and adjustment to offpeak hours.
For the full list consult the patch attached to link:https://issues.apache.org/jira/browse/HBASE-12147[HBASE-12147 Porting Online Config Change from 89-fb].
Here are those configurations:
.Configurations support dynamically change
[cols="1,1",options="header"]
|===
| Key | Default Value
| hbase.ipc.server.fallback-to-simple-auth-allowed | false
| hbase.cleaner.scan.dir.concurrent.size | 0.5
| hbase.regionserver.thread.compaction.large | 1
| hbase.regionserver.thread.compaction.small | 1
| hbase.regionserver.thread.split | 1
| hbase.regionserver.throughput.controller | PressureAwareCompactionThroughputController.class
| hbase.regionserver.thread.hfilecleaner.throttle | 64*1024*1024 (64M)
| hbase.regionserver.hfilecleaner.large.queue.size | 10240
| hbase.regionserver.hfilecleaner.small.queue.size | 10240
| hbase.regionserver.hfilecleaner.large.thread.count | 1
| hbase.regionserver.hfilecleaner.small.thread.count | 1
| hbase.regionserver.flush.throughput.controller | NoLimitThroughputController.class
| hbase.hstore.compaction.max.size | Long.MAX
| hbase.hstore.compaction.max.size.offpeak | Long.MAX
| hbase.hstore.compaction.min.size | 1024*1024*128 (128M)
| hbase.hstore.compaction.min | 3
| hbase.hstore.compaction.max | 10
| hbase.hstore.compaction.ratio | 1.2f
| hbase.hstore.compaction.ratio.offpeak | 5.0f
| hbase.regionserver.thread.compaction.throttle | 2*10*1024*1024*128 (2560M)
| hbase.hregion.majorcompaction | 1000*60*60*24*7 (1 week)
| hbase.hregion.majorcompaction.jitter | 0.5f
| hbase.hstore.min.locality.to.skip.major.compact | 0.0f
| hbase.hstore.compaction.date.tiered.max.storefile.age.millis | Long.MAX
| hbase.hstore.compaction.date.tiered.incoming.window.min | 6
| hbase.hstore.compaction.date.tiered.window.policy.class | ExploringCompactionPolicy.class
| hbase.hstore.compaction.date.tiered.single.output.for.minor.compaction | true
| hbase.hstore.compaction.date.tiered.window.factory.class | ExponentialCompactionWindowFactory.class
| hbase.offpeak.start.hour | -1
| hbase.offpeak.end.hour | -1
| hbase.oldwals.cleaner.thread.size | 2
| hbase.procedure.worker.keep.alive.time.msec | Long.MAX
| hbase.procedure.worker.add.stuck.percentage | 0.5f
| hbase.procedure.worker.monitor.interval.msec | 5000 (5 seconds)
| hbase.procedure.worker.stuck.threshold.msec | 10000 (10 seconds)
| hbase.regions.slop | 0.2
| hbase.regions.overallSlop | 0.2
| hbase.balancer.tablesOnMaster | false
| hbase.balancer.tablesOnMaster.systemTablesOnly | false
| hbase.util.ip.to.rack.determiner | ScriptBasedMapping.class
| hbase.ipc.server.max.callqueue.length | 10*30
| hbase.ipc.server.priority.max.callqueue.length | 10*30
| hbase.ipc.server.callqueue.type | fifo
| hbase.ipc.server.callqueue.codel.target.delay | 100
| hbase.ipc.server.callqueue.codel.interval | 100
| hbase.ipc.server.callqueue.codel.lifo.threshold | 0.8
| hbase.master.balancer.stochastic.maxSteps | 1000000
| hbase.master.balancer.stochastic.stepsPerRegion | 800
| hbase.master.balancer.stochastic.maxRunningTime | 30*1000 (30 seconds)
| hbase.master.balancer.stochastic.runMaxSteps | false
| hbase.master.balancer.stochastic.numRegionLoadsToRemember | 15
| hbase.master.loadbalance.bytable | false
| hbase.master.balancer.stochastic.minCostNeedBalance | 0.05f
| hbase.master.balancer.stochastic.localityCost | 25
| hbase.master.balancer.stochastic.rackLocalityCost | 15
| hbase.master.balancer.stochastic.readRequestCost | 5
| hbase.master.balancer.stochastic.writeRequestCost | 5
| hbase.master.balancer.stochastic.memstoreSizeCost | 5
| hbase.master.balancer.stochastic.storefileSizeCost | 5
| hbase.master.balancer.stochastic.regionReplicaHostCostKey | 100000
| hbase.master.balancer.stochastic.regionReplicaRackCostKey | 10000
| hbase.master.balancer.stochastic.regionCountCost | 500
| hbase.master.balancer.stochastic.primaryRegionCountCost | 500
| hbase.master.balancer.stochastic.moveCost | 7
| hbase.master.balancer.stochastic.maxMovePercent | 0.25f
| hbase.master.balancer.stochastic.tableSkewCost | 35
|===
For more details consult the patch attached to link:https://issues.apache.org/jira/browse/HBASE-12147[HBASE-12147 Porting Online Config Change from 89-fb].
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