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Ted Yu commented on HBASE-17280: -------------------------------- [~anoop.hbase]: Do you prefer the method with boolean return type ? > Add mechanism to control hbase cleaner behavior > ----------------------------------------------- > > Key: HBASE-17280 > URL: https://issues.apache.org/jira/browse/HBASE-17280 > Project: HBase > Issue Type: Improvement > Components: Client, hbase, shell > Affects Versions: 2.0.0, 1.2.0 > Reporter: Ajay Jadhav > Priority: Minor > Fix For: 2.0.0, 1.2.0 > > Attachments: HBASE-17280.branch-1.2.patch, > HBASE-17280.branch-2.0.patch, HBASE-17280.master.003.patch, > HBASE-17280.master.004.patch, HBASE-17280.v1-branch-1.2.patch, > HBASE-17280.v2-branch-1.2.patch, HBASE-17280.v2-branch-2.patch > > > Cleaner is used to get rid of archived HFiles and old WALs in HBase. > In the case of heavy workload, cleaner can affect query performance by > creating a lot of connections to perform costly reads/ writes against > underlying filesystem. > This patch allows the user to control HBase cleaner behavior by providing > shell commands to enable/ disable and manually run it. > Our main intention with this patch was to avoid running the expensive cleaner > chore during peak times. During our experimentation, we saw a lot of HFiles > and WAL log related files getting created inside archive dir (didn't see > ZKlock related files). Since we were replacing hdfs with S3, these delete > calls will take forever to complete. -- This message was sent by Atlassian JIRA (v6.3.15#6346)