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Wei-Chiu Chuang commented on HDFS-15207: ---------------------------------------- Patch makes sense tom me. Thanks for working on this [~hadoop_yangyun] In the test code: {code} assertTrue("Should not run to here", false); {code} Can you use {{LambdaTestUtils#intercept()}} instead, or use the more traditional {{fail()}} {{VolumeScanner#runLoop()}} is quite long now. Time to refactor it. Can be a separate jira to refactor that method. > VolumeScanner skip to scan blocks accessed during recent scan peroid > -------------------------------------------------------------------- > > Key: HDFS-15207 > URL: https://issues.apache.org/jira/browse/HDFS-15207 > Project: Hadoop HDFS > Issue Type: Improvement > Components: datanode > Reporter: Yang Yun > Assignee: Yang Yun > Priority: Minor > Attachments: HDFS-15207.002.patch, HDFS-15207.003.patch, > HDFS-15207.patch, HDFS-15207.patch > > > Check the access time of block file to avoid scanning recently changed > blocks, reducing disk IO. -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org