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From Stack <st...@duboce.net>
Subject Re: Config Properties Review
Date Tue, 23 Nov 2010 22:37:46 GMT
I made HBASE-3272 to address your list below Lars (and added a patch).
 Thanks for making it.
St.Ack

On Tue, Nov 23, 2010 at 5:05 AM, Lars George <lars.george@gmail.com> wrote:
> Hi,
>
> I went through the config values as per the defaults XML file (still
> going through it again now based on what is actually in the code, i.e.
> those not in defaults). Here is what I found:
>
> hbase.master.balancer.period - Only used in hbase-default.xml?
>
> hbase.regions.percheckin, hbase.regions.slop - Some tests still have
> it but not used anywhere else
>
> zookeeper.pause, zookeeper.retries - Never used? Only in hbase-defaults.xml
>
>
> And then there are differences between hardcoded and XML based defaults:
>
> hbase.client.pause - XML: 1000, hardcoded: 2000 (HBaseClient) and 30 *
> 1000 (HBaseAdmin)
>
> hbase.client.retries.number - XML: 10, hardcoded 5 (HBaseAdmin) and 2 (HMaster)
>
> hbase.hstore.blockingStoreFiles - XML: 7, hardcoded: -1
>
> hbase.hstore.compactionThreshold - XML: 3, hardcoded: 2
>
> hbase.regionserver.global.memstore.lowerLimit - XML: 0.35, hardcoded: 0.25
>
> hbase.regionserver.handler.count - XML: 25, hardcoded: 10
>
> hbase.regionserver.msginterval - XML: 3000, hardcoded: 1000
>
> hbase.rest.port - XML: 8080, hardcoded: 9090
>
> hfile.block.cache.size - XML: 0.2, hardcoded: 0.0
>
>
> Finally, some keys are already in HConstants, some are in local
> classes and others used as literals. There is an issue open to fix
> this though. Just saying.
>
> Thoughts?
>
> Thanks,
> Lars
>

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