[ https://issues.apache.org/jira/browse/HBASE-19035?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
stack updated HBASE-19035: -------------------------- Attachment: HBASE-19035.master.003.patch Retry > Miss metrics when coprocessor use region scanner to read data > ------------------------------------------------------------- > > Key: HBASE-19035 > URL: https://issues.apache.org/jira/browse/HBASE-19035 > Project: HBase > Issue Type: Bug > Reporter: Guanghao Zhang > Assignee: Guanghao Zhang > Fix For: 2.0.0-beta-1 > > Attachments: HBASE-19035.branch-1.001.patch, > HBASE-19035.branch-1.patch, HBASE-19035.master.001.patch, > HBASE-19035.master.002.patch, HBASE-19035.master.003.patch, > HBASE-19035.master.003.patch > > > Region interface is exposed to coprocessor. So coprocessor use getScanner to > get a region scanner to read data. But the scan metrics was only updated in > region server level. So we will miss some scan metrics for the read from > coprocessor. > || Region Operation || When to update requests metric || > | get | update read metric in nextRaw() | > | put | update write metric in batchMutate() | > | delete | update write metric in batchMutate() | > | increment | update read metric by get() and update write metric in > doDelta() | > | append | update read metric by get() and update write metric in doDelta() | > | mutateRow | update write metric in processRowsWithLocks() | > | mutateRowsWithLocks | update write metric in processRowsWithLocks() | > | batchMutate | update write metric in batchMutate() | > | checkAndMutate | update read metric by get() and update write metric by > mutateRow() | > | checkAndRowMutate | update read metric by get() and update write metric by > doBatchMutate() | > | processRowsWithLocks | update write metric in processRowsWithLocks() | > 1. Move read requests to region level. Because RegionScanner exposed to CP. > 2. Update write requests count in processRowsWithLocks. This was missed in > previous implemenation, too. > 3. Remove requestRowActionCount in RSRpcServices. This metric can be computed > by region's readRequestsCount and writeRequestsCount. > Upload to review board: https://reviews.apache.org/r/63579/ -- This message was sent by Atlassian JIRA (v6.4.14#64029)