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https://issues.apache.org/jira/browse/HDFS-13576?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17233325#comment-17233325
]
JiangHua Zhu commented on HDFS-13576:
-------------------------------------
The following is another test of mine, set
dfs.namenode.fs-limits.max-component-length=2, and execute the mkdir operation,
and the following exception is displayed:
org.apache.hadoop.hdfs.protocol.FSLimitException$PathComponentTooLongException:
The maximum path component name limit of 333 in directory / is exceeded:
limit=2 length=3
at
org.apache.hadoop.hdfs.server.namenode.FSDirectory.verifyMaxComponentLength(FSDirectory.java:1267)
at
org.apache.hadoop.hdfs.server.namenode.FSDirectory.addLastINode(FSDirectory.java:1369)
at
org.apache.hadoop.hdfs.server.namenode.FSDirMkdirOp.unprotectedMkdir(FSDirMkdirOp.java:225)
at
org.apache.hadoop.hdfs.server.namenode.FSDirMkdirOp.createSingleDirectory(FSDirMkdirOp.java:169)
at
org.apache.hadoop.hdfs.server.namenode.FSDirMkdirOp.mkdirs(FSDirMkdirOp.java:77)
at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.mkdirs(FSNamesystem.java:3475)
at
org.apache.hadoop.hdfs.server.namenode.TestFsLimits.mkdirs(TestFsLimits.java:263)
at
org.apache.hadoop.hdfs.server.namenode.TestFsLimits.testMaxComponentLength(TestFsLimits.java:90)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at
org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at
org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at
org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at
org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
at
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at
com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
at
com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:33)
at
com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:230)
at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:58)
> RBF: Add destination path length validation for add/update mount entry
> ----------------------------------------------------------------------
>
> Key: HDFS-13576
> URL: https://issues.apache.org/jira/browse/HDFS-13576
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Dibyendu Karmakar
> Assignee: Ayush Saxena
> Priority: Minor
>
> Currently there is no validation to check destination path length while
> adding or updating mount entry. But while trying to create directory using
> this mount entry
> {noformat}
> RemoteException(org.apache.hadoop.hdfs.protocol.FSLimitException$PathComponentTooLongException){noformat}
> is thrown with exception message as
> {noformat}
> "maximum path component name limit of ....<long path>... directory / is
> exceeded: limit=255 length=1817"{noformat}
>
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