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Eric Payne commented on HDFS-7213: ---------------------------------- [~daryn], would you mind taking a look at this patch? Thanks. > processIncrementalBlockReport performance degradation > ----------------------------------------------------- > > Key: HDFS-7213 > URL: https://issues.apache.org/jira/browse/HDFS-7213 > Project: Hadoop HDFS > Issue Type: Bug > Components: namenode > Affects Versions: 2.4.0 > Reporter: Daryn Sharp > Assignee: Eric Payne > Priority: Critical > Attachments: HDFS-7213.1412804753 > > > {{BlockManager#processIncrementalBlockReport}} has a debug line that is > missing a {{isDebugEnabled}} check. The write lock is being held. Coupled > with the increase in incremental block reports from receiving blocks, under > heavy load this log line noticeably degrades performance. -- This message was sent by Atlassian JIRA (v6.3.4#6332)