[HDFS-9549] TestCacheDirectives#testExceedsCapacity is flaky

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.0.0-alpha1
• Fix Version/s: 2.8.0, 3.0.0-alpha1
• Labels: unittest

Environment

Jenkins

• Target Version/s: 2.8.0
• Assignee: Xiao Chen
• Reporter: Wei-Chiu Chuang
• Created: 11/Dec/15 16:25
• Updated: 02/Oct/19 17:12
• Resolved: 23/Feb/16 20:06

Description

I have observed that this test (TestCacheDirectives.testExceedsCapacity) fails quite frequently in Jenkins (trunk, trunk-Java8)

Error Message

Pending cached list of 127.0.0.1:54134 is not empty, [

{blockId=1073741841, replication=1, mark=true}]

Stacktrace

java.lang.AssertionError: Pending cached list of 127.0.0.1:54134 is not empty, [{blockId=1073741841, replication=1, mark=true}

]
at org.junit.Assert.fail(Assert.java:88)
at org.junit.Assert.assertTrue(Assert.java:41)
at org.apache.hadoop.hdfs.server.namenode.TestCacheDirectives.checkPendingCachedEmpty(TestCacheDirectives.java:1479)
at org.apache.hadoop.hdfs.server.namenode.TestCacheDirectives.testExceedsCapacity(TestCacheDirectives.java:1502)

Issue Links

• is related to: HDFS-10525 Fix NPE in CacheReplicationMonitor#rescanCachedBlockMap