Weiwei Yang created HDFS-12701: ---------------------------------- Summary: More fine-grained locks in ShortCircuitCache Key: HDFS-12701 URL: https://issues.apache.org/jira/browse/HDFS-12701 Project: Hadoop HDFS Issue Type: Improvement Affects Versions: 2.8.1 Reporter: Weiwei Yang
When cluster is heavily loaded, we found HBase regionserver handlers are often blocked by {{ShortCircuitCache}}. Dumped jstack and found more lots of thread waiting on obtain the cache lock. It should be able to be improved by using more fine-grained locks to improve the performance. -- This message was sent by Atlassian JIRA (v6.4.14#64029) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-dev-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-dev-h...@hadoop.apache.org