[ https://issues.apache.org/jira/browse/HBASE-13827?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Anoop Sam John updated HBASE-13827: ----------------------------------- Status: Patch Available (was: Open) > Delayed scanner close in KeyValueHeap and StoreScanner > ------------------------------------------------------ > > Key: HBASE-13827 > URL: https://issues.apache.org/jira/browse/HBASE-13827 > Project: HBase > Issue Type: Sub-task > Components: regionserver, Scanners > Reporter: Anoop Sam John > Assignee: Anoop Sam John > Fix For: 2.0.0 > > Attachments: HBASE-13827.patch, HBASE-13827.patch > > > This is to support the work in HBASE-12295. We have to return the blocks when > the close() happens on the HFileScanner. Right now close is not at all > there. Will add. The StoreFileScanner will call it on its close(). > In KVHeap when we see one of the child scanner runs out of cells, we will > remove them from the PriorityQueue as well as close it. Also the same kind of > stuff in StoreScanner too. But when we want to do the return block in close() > this kind of early close is not correct. Still there might be cells created > out of these cached blocks. > This Jira aims at changing these container scanners not to do early close. > When it seems a child scanner no longer required, it will avoid using it > completely but just wont call close(). Instead it will be added to another > list for a delayed close and that will be closed when the container scanner > close() happens. -- This message was sent by Atlassian JIRA (v6.3.4#6332)