[HDFS-7721] The HDFS BlockScanner may run fast during the first hour

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.7.0
• Component/s: datanode
• Target Version/s: 2.7.0
• Assignee: Colin McCabe
• Reporter: Tsz-wo Sze
• Created: 31/Jan/15 01:20
• Updated: 10/Apr/15 20:30
• Resolved: 03/Feb/15 19:24

Description

• https://builds.apache.org/job/PreCommit-HDFS-Build/9375//testReport/org.apache.hadoop.hdfs.server.datanode/TestBlockScanner/testScanRateLimit/
• https://builds.apache.org/job/PreCommit-HDFS-Build/9365//testReport/org.apache.hadoop.hdfs.server.datanode/TestBlockScanner/testScanRateLimit/

  java.lang.AssertionError: null
  	at org.junit.Assert.fail(Assert.java:86)
  	at org.junit.Assert.assertTrue(Assert.java:41)
  	at org.junit.Assert.assertTrue(Assert.java:52)
  	at org.apache.hadoop.hdfs.server.datanode.TestBlockScanner.testScanRateLimit(TestBlockScanner.java:439)
  

Issue Links

• relates to: HDFS-7430 Rewrite the BlockScanner to use O(1) memory and use multiple threads