[ https://issues.apache.org/jira/browse/PHOENIX-6129?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Viraj Jasani reassigned PHOENIX-6129: ------------------------------------- Assignee: Viraj Jasani > Remove unnecessary HBase admin API calls when writing and deleting mutex cells > ------------------------------------------------------------------------------ > > Key: PHOENIX-6129 > URL: https://issues.apache.org/jira/browse/PHOENIX-6129 > Project: Phoenix > Issue Type: Improvement > Affects Versions: 5.0.0, 4.15.0 > Reporter: Chinmay Kulkarni > Assignee: Viraj Jasani > Priority: Major > Labels: phoenix-hardening, quality-improvement > Fix For: 5.1.0, 4.16.0 > > > Inside CQSI.writeMutexCell(), we call > [getSysMutexPhysicalTableNameBytes()|https://github.com/apache/phoenix/blob/e3c7b4bdce2524eb4fd1e7eb0ccd3454fcca81ce/phoenix-core/src/main/java/org/apache/phoenix/query/ConnectionQueryServicesImpl.java#L4244] > which in turn calls HBase Admin APIs to check the existence of > SYSTEM.MUTEX/SYSTEM:MUTEX > [here|https://github.com/apache/phoenix/blob/e3c7b4bdce2524eb4fd1e7eb0ccd3454fcca81ce/phoenix-core/src/main/java/org/apache/phoenix/query/ConnectionQueryServicesImpl.java#L4309-L4312]. > Later, we anyways try to get the HTable both inside > [writeMutexCell()|https://github.com/apache/phoenix/blob/e3c7b4bdce2524eb4fd1e7eb0ccd3454fcca81ce/phoenix-core/src/main/java/org/apache/phoenix/query/ConnectionQueryServicesImpl.java#L4245] > and > [deleteMutexCell()|https://github.com/apache/phoenix/blob/e3c7b4bdce2524eb4fd1e7eb0ccd3454fcca81ce/phoenix-core/src/main/java/org/apache/phoenix/query/ConnectionQueryServicesImpl.java#L4289]. > Instead, we can lazily fail this getTable() call (by catching the HBase > TableNotFoundException) to avoid additional HBase Admin API calls. -- This message was sent by Atlassian Jira (v8.3.4#803005)