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stack commented on HBASE-10949: ------------------------------- That is a classic [~jxiang] > Reversed scan could hang > ------------------------ > > Key: HBASE-10949 > URL: https://issues.apache.org/jira/browse/HBASE-10949 > Project: HBase > Issue Type: Bug > Affects Versions: 0.98.0 > Reporter: Jimmy Xiang > Assignee: Jimmy Xiang > Priority: Critical > Fix For: 0.99.0 > > Attachments: master-jstack.log > > > When I play with ITBLL (from trunk tip), sometimes, meta scan hangs when the > cluster is rolling restarted. When this happens, the master takes about 1000% > of CPU. It looks like there is an infinite loop somewhere. The logs show > nothing interesting except some meta scanner RPC calls timed out. Jstask > shows the 10 high QoS RPC handlers are busy with meta scanning. > However, if I run it again without HBASE-10018, things are fine. I suspect > there is something to do with the small/reverse scan. > By the way, I see this problem even with log replay off and hfile version = 2. -- This message was sent by Atlassian JIRA (v6.2#6252)