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Huaxiang Sun updated HBASE-26590: --------------------------------- Affects Version/s: (was: 3.0.0-alpha-1) > 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: 2.4.0, 2.5.0, 2.3.7, 2.6.0 > 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*| > -- This message was sent by Atlassian Jira (v8.20.1#820001)