HBase 动态配置
从HBase 1.0.0 版本开始，你可以在不重新启动服务器的情况下更改配置的子集。在 HBase shell 中，有新的操作符，update_config 以及 update_all_config，它们会提示服务器或所有服务器重新加载配置。
当前正在运行的服务器中，只能更改所有配置的子集。以下是这些支持动态更改的配置：
| Key |
|---|
|
hbase.ipc.server.fallback-to-simple-auth-allowed |
|
hbase.cleaner.scan.dir.concurrent.size |
|
hbase.regionserver.thread.compaction.large |
|
hbase.regionserver.thread.compaction.small |
|
hbase.regionserver.thread.split |
|
hbase.regionserver.throughput.controller |
|
hbase.regionserver.thread.hfilecleaner.throttle |
|
hbase.regionserver.hfilecleaner.large.queue.size |
|
hbase.regionserver.hfilecleaner.small.queue.size |
|
hbase.regionserver.hfilecleaner.large.thread.count |
|
hbase.regionserver.hfilecleaner.small.thread.count |
|
hbase.regionserver.flush.throughput.controller |
|
hbase.hstore.compaction.max.size |
|
hbase.hstore.compaction.max.size.offpeak |
|
hbase.hstore.compaction.min.size |
|
hbase.hstore.compaction.min |
|
hbase.hstore.compaction.max |
|
hbase.hstore.compaction.ratio |
|
hbase.hstore.compaction.ratio.offpeak |
|
hbase.regionserver.thread.compaction.throttle |
|
hbase.hregion.majorcompaction |
|
hbase.hregion.majorcompaction.jitter |
|
hbase.hstore.min.locality.to.skip.major.compact |
|
hbase.hstore.compaction.date.tiered.max.storefile.age.millis |
|
hbase.hstore.compaction.date.tiered.incoming.window.min |
|
hbase.hstore.compaction.date.tiered.window.policy.class |
|
hbase.hstore.compaction.date.tiered.single.output.for.minor.compaction |
|
hbase.hstore.compaction.date.tiered.window.factory.class |
|
hbase.offpeak.start.hour |
|
hbase.offpeak.end.hour |
|
hbase.oldwals.cleaner.thread.size |
|
hbase.procedure.worker.keep.alive.time.msec |
|
hbase.procedure.worker.add.stuck.percentage |
|
hbase.procedure.worker.monitor.interval.msec |
|
hbase.procedure.worker.stuck.threshold.msec |
|
hbase.regions.slop |
|
hbase.regions.overallSlop |
|
hbase.balancer.tablesOnMaster |
|
hbase.balancer.tablesOnMaster.systemTablesOnly |
|
hbase.util.ip.to.rack.determiner |
|
hbase.ipc.server.max.callqueue.length |
|
hbase.ipc.server.priority.max.callqueue.length |
|
hbase.ipc.server.callqueue.type |
|
hbase.ipc.server.callqueue.codel.target.delay |
|
hbase.ipc.server.callqueue.codel.interval |
|
hbase.ipc.server.callqueue.codel.lifo.threshold |
|
hbase.master.balancer.stochastic.maxSteps |
|
hbase.master.balancer.stochastic.stepsPerRegion |
|
hbase.master.balancer.stochastic.maxRunningTime |
|
hbase.master.balancer.stochastic.runMaxSteps |
|
hbase.master.balancer.stochastic.numRegionLoadsToRemember |
|
hbase.master.loadbalance.bytable |
|
hbase.master.balancer.stochastic.minCostNeedBalance |
|
hbase.master.balancer.stochastic.localityCost |
|
hbase.master.balancer.stochastic.rackLocalityCost |
|
hbase.master.balancer.stochastic.readRequestCost |
|
hbase.master.balancer.stochastic.writeRequestCost |
|
hbase.master.balancer.stochastic.memstoreSizeCost |
|
hbase.master.balancer.stochastic.storefileSizeCost |
|
hbase.master.balancer.stochastic.regionReplicaHostCostKey |
|
hbase.master.balancer.stochastic.regionReplicaRackCostKey |
|
hbase.master.balancer.stochastic.regionCountCost |
|
hbase.master.balancer.stochastic.primaryRegionCountCost |
|
hbase.master.balancer.stochastic.moveCost |
|
hbase.master.balancer.stochastic.maxMovePercent |
|
hbase.master.balancer.stochastic.tableSkewCost |