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https://issues.apache.org/jira/browse/HBASE-20259?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16421993#comment-16421993
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Edward Bortnikov edited comment on HBASE-20259 at 4/2/18 7:29 AM:
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[~stack] let's take the decision in a broader context of the overall
performance evaluation methodology. Tons of effort have been invested in
exploring CompactingMemstore, including the off-heap path. The demonstrated
performance benefits were decisive. Let's avoid haste just now.
We're now on testing the system in the settings that have not been expected
before (CMS+MSLAB on-heap combination), still need some time to figure out
what's going on. Stay tuned sir ..
was (Author: ebortnik):
[~stack] let's take the decision in a broader context of the overall
performance evaluation methodology. Tons of effort have been invested in
exploring CompactingMemstore, and the demonstrated performance benefits were
decisive. Let's avoid haste just now.
We're now on testing the system in the settings that have not been expected
before (CMS+MSLAB on-heap combination), still need some time to figure out
what's going on. Stay tuned sir ..
> Doc configs for in-memory-compaction and add detail to in-memory-compaction
> logging
> -----------------------------------------------------------------------------------
>
> Key: HBASE-20259
> URL: https://issues.apache.org/jira/browse/HBASE-20259
> Project: HBase
> Issue Type: Bug
> Reporter: stack
> Assignee: stack
> Priority: Critical
> Fix For: 2.0.0
>
> Attachments: HBASE-20259.master.001.patch,
> HBASE-20259.master.002.patch, HBASE-20259.master.003.patch
>
>
> I set {{hbase.systemtables.compacting.memstore.type}} to NONE but it seems
> like in-memory is still on. My table looks like this:
> {code}
> Table ycsb is ENABLED
> ycsb
> COLUMN FAMILIES DESCRIPTION
> {NAME => 'family', VERSIONS => '1', EVICT_BLOCKS_ON_CLOSE => 'false',
> NEW_VERSION_BEHAVIOR => 'false', KEEP_DELETED_CELLS => 'FALSE',
> CACHE_DATA_ON_WRITE => 'false', DATA_BLOCK_ENCODING => 'NONE', TTL =>
> 'FOREVER', MIN_VERSIONS => '0', REPLICATION_SCOPE => '0', BLOOMFILTER =
> > 'ROW', CACHE_INDEX_ON_WRITE => 'false', IN_MEMORY => 'false',
> > CACHE_BLOOMS_ON_WRITE => 'false', PREFETCH_BLOCKS_ON_OPEN => 'false',
> > COMPRESSION => 'NONE', BLOCKCACHE => 'true', BLOCKSIZE => '65536'}
> {code}
> Looks like table doesn't have it on either (IN_MEMORY_COMPACTION doesn't show
> in the above).
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