[ https://issues.apache.org/jira/browse/HBASE-5292?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Kannan Muthukkaruppan updated HBASE-5292: ----------------------------------------- Description: The per-CF "getsize" metric's intent was to track bytes returned (to HBase clients) per-CF. [Note: We already have metrics to track # of HFileBlock's read for compaction vs. non-compaction cases -- e.g., compactionblockreadcnt vs. fsblockreadcnt.] However, currently, the metric gets updated for both client initiated Get/Scan operations as well for compaction related reads. The metric is updated in StoreScanner.java:next() when the Scan query matcher returns an INCLUDE* code via a: HRegion.incrNumericMetric(this.metricNameGetsize, copyKv.getLength()); We should not do the above in case of compactions. was: The per-CF "getsize" metric's intent was to track bytes returned per-CF. [Note: We already have metrics to track # of HFileBlock's read for compaction vs. non-compaction cases -- e.g., compactionblockreadcnt vs. fsblockreadcnt.] However, currently, the metric gets updated for both client initiated Get/Scan operations as well for compaction related reads. The metric is updated in StoreScanner.java:next() when the Scan query matcher returns an INCLUDE* code via a: HRegion.incrNumericMetric(this.metricNameGetsize, copyKv.getLength()); We should not do the above in case of compactions. > getsize per-CF metric incorrectly counts compaction related reads as well > -------------------------------------------------------------------------- > > Key: HBASE-5292 > URL: https://issues.apache.org/jira/browse/HBASE-5292 > Project: HBase > Issue Type: Bug > Reporter: Kannan Muthukkaruppan > > The per-CF "getsize" metric's intent was to track bytes returned (to HBase > clients) per-CF. [Note: We already have metrics to track # of HFileBlock's > read for compaction vs. non-compaction cases -- e.g., compactionblockreadcnt > vs. fsblockreadcnt.] > However, currently, the metric gets updated for both client initiated > Get/Scan operations as well for compaction related reads. The metric is > updated in StoreScanner.java:next() when the Scan query matcher returns an > INCLUDE* code via a: > HRegion.incrNumericMetric(this.metricNameGetsize, copyKv.getLength()); > We should not do the above in case of compactions. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira