[jira] [Commented] (HBASE-20273) [DOC] include call out of additional changed config defaults in 2.0 upgrade

["Mike Drob (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-20273?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16418447#comment-16418447 ] 

Mike Drob commented on HBASE-20273:
-----------------------------------

More notes, comparing what our default HBaseConfiguration gives between 1.2.x and 2.0.0-beta-2. If there were changes between 1.2 and 1.4, then some of these may be redundant. Likewise, if there were changes past beta-2, then they're missing from this list.

The following properties are no longer present:
* hbase.master.catalog.timeout
* hbase.regionserver.catalog.timeout
* hbase.metrics.exposeOperationTimes
* hbase.metrics.showTableName
* hbase.online.schema.update.enable
* hbase.thrift.htablepool.size.max

It appears that the following properties have changed defaults:
* hbase.regions.slop (0.2 -> 0.001)
* hbase.hstore.blockingStoreFiles (10 -> 16)
* hbase.http.max.threads (10 -> 16)
* hbase.client.max.perserver.tasks (5 -> 2)
* hbase.normalizer.period (1800000 -> 300000)
* hbase.regionserver.region.split.policy (IncreasingToUpperBoundRegionSplitPolicy -> SteppingSplitPolicy)

The property hbase.hregion.percolumnfamilyflush.size.lower.bound has been renamed to hbase.hregion.percolumnfamilyflush.size.lower.bound.min




> [DOC] include call out of additional changed config defaults in 2.0 upgrade
> ---------------------------------------------------------------------------
>
>                 Key: HBASE-20273
>                 URL: https://issues.apache.org/jira/browse/HBASE-20273
>             Project: HBase
>          Issue Type: Sub-task
>          Components: documentation
>    Affects Versions: 2.0.0
>            Reporter: Sean Busbey
>            Priority: Major
>
> Copied from feedback on HBASE-19158 from [~mdrob]:
> {quote}
> Default settings/configuration properties changed/renamed:
> HBASE-19919
> HBASE-19148
> HBASE-18307
> HBASE-17314
> HBASE-15784
> HBASE-15027
> HBASE-14906
> HBASE-14521
> {quote}
> More detail later from [~mdrob]:
> {quote}
> would like to see notes that:
> hbase.master.cleaner.interval changed from 1 min to 10 min
> MasterProcedureConstants.MASTER_PROCEDURE_THREADS defaults to CPU/4 instead of CPU
> hbase.rpc.server.nativetransport renamed to hbase.netty.nativetransport
> hbase.netty.rpc.server.worker.count renamed to base.netty.worker.count
> hbase.hfile.compactions.discharger.interval renamed to hbase.hfile.compaction.discharger.interval
> hbase.hregion.percolumnfamilyflush.size.lower.bound removed at site level, but can still be applied at table level
> hbase.client.reties.number now counts the total number of retries, not the total number of tries
> {quote}



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