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https://issues.apache.org/jira/browse/HBASE-26590?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Huaxiang Sun updated HBASE-26590:
---------------------------------
Description:
One of our users complained higher latency after application upgrades from
hbase-1.2 client (CDH-5.16.2) to hbase-2.4.5 client with meta replica Load
Balance mode during app restart. I reproduced the regression by a test for meta
lookup.
At my test cluster, there are 160k regions for the test table, so there are
160k entries in meta region. Used one thread to do 1 million meta lookup
against the meta region server.
||Version ||Meta Replica Load Balance Enabled||Time ||
||2.4.5-with-fixed||Yes||336458ms||
||2.4.5-with-fixed||No||333253ms||
||2.4.5||Yes||469980ms||
||2.4.5||No||470515ms||
| *cdh-5.16.2*| *No* | *323412ms*|
was:
One of our users complained higher latency after application upgrades from
hbase-1.2 client (CDH-5.16.2) to hbase-2.4.5 client with meta replica Load
Balance mode during app restart. I reproduced the regression by a test for meta
lookup.
At my test cluster, there are 160k regions for the test table, so there are
160k entries in meta region. Used one thread to do 1 million meta lookup
against the meta region server.
> Hbase-client Meta lookup performance regression between hbase-1 and hbase-2
> ---------------------------------------------------------------------------
>
> Key: HBASE-26590
> URL: https://issues.apache.org/jira/browse/HBASE-26590
> Project: HBase
> Issue Type: Improvement
> Components: meta
> Affects Versions: 3.0.0-alpha-1, 2.3.7
> Environment: ||Version ||Meta Replica Load Balance Enabled||Time
> ||
> ||2.4.5-with-fixed||Yes||336458ms||
> ||2.4.5-with-fixed||No||333253ms||
> ||2.4.5||Yes||469980ms||
> ||2.4.5||No||470515ms||
> | *cdh-5.16.2*| *No* | *323412ms*|
> Reporter: Huaxiang Sun
> Assignee: Huaxiang Sun
> Priority: Major
>
> One of our users complained higher latency after application upgrades from
> hbase-1.2 client (CDH-5.16.2) to hbase-2.4.5 client with meta replica Load
> Balance mode during app restart. I reproduced the regression by a test for
> meta lookup.
> At my test cluster, there are 160k regions for the test table, so there are
> 160k entries in meta region. Used one thread to do 1 million meta lookup
> against the meta region server.
>
> ||Version ||Meta Replica Load Balance Enabled||Time ||
> ||2.4.5-with-fixed||Yes||336458ms||
> ||2.4.5-with-fixed||No||333253ms||
> ||2.4.5||Yes||469980ms||
> ||2.4.5||No||470515ms||
> | *cdh-5.16.2*| *No* | *323412ms*|
>
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