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Steve Loughran commented on HADOOP-14630: ----------------------------------------- TestLocalFSContractRename failing {code} common/target/test/data/2/fEJaHzwpnD/testRenameFileUnderFileSubdir/file at org.apache.hadoop.fs.RawLocalFileSystem.mkdirsWithOptionalPermission(RawLocalFileSystem.java:553) at org.apache.hadoop.fs.RawLocalFileSystem.mkdirs(RawLocalFileSystem.java:534) at org.apache.hadoop.fs.RawLocalFileSystem.create(RawLocalFileSystem.java:303) at org.apache.hadoop.fs.RawLocalFileSystem.create(RawLocalFileSystem.java:292) at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:1149) at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:1038) at org.apache.hadoop.fs.FileUtil.copy(FileUtil.java:393) at org.apache.hadoop.fs.FileUtil.copy(FileUtil.java:366) at org.apache.hadoop.fs.FileUtil.copy(FileUtil.java:316) at org.apache.hadoop.fs.RawLocalFileSystem.rename(RawLocalFileSystem.java:372) at org.apache.hadoop.fs.contract.AbstractFSContractTestBase.rename(AbstractFSContractTestBase.java:372) at org.apache.hadoop.fs.contract.AbstractContractRenameTest.expectRenameUnderFileFails(AbstractContractRenameTest.java:327) at org.apache.hadoop.fs.contract.AbstractContractRenameTest.testRenameFileUnderFileSubdir(AbstractContractRenameTest.java:312) 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:47) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44) 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.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27) at org.junit.rules.TestWatcher$1.evaluate(TestWatcher.java:55) at org.junit.internal.runners.statements.FailOnTimeout$StatementThread.run(FailOnTimeout.java:74) {code} and {code} Stacktrace org.apache.hadoop.fs.FileAlreadyExistsException: Destination exists and is not a directory: /testptch/hadoop/hadoop-common-project/hadoop-common/target/test/data/4/cE76lDnwXc/testRenameFileUnderFile/file at org.apache.hadoop.fs.RawLocalFileSystem.mkdirsWithOptionalPermission(RawLocalFileSystem.java:559) at org.apache.hadoop.fs.RawLocalFileSystem.mkdirs(RawLocalFileSystem.java:534) at org.apache.hadoop.fs.RawLocalFileSystem.create(RawLocalFileSystem.java:303) at org.apache.hadoop.fs.RawLocalFileSystem.create(RawLocalFileSystem.java:292) at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:1149) at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:1038) at org.apache.hadoop.fs.FileUtil.copy(FileUtil.java:393) at org.apache.hadoop.fs.FileUtil.copy(FileUtil.java:366) at org.apache.hadoop.fs.FileUtil.copy(FileUtil.java:316) at org.apache.hadoop.fs.RawLocalFileSystem.rename(RawLocalFileSystem.java:372) at org.apache.hadoop.fs.ChecksumFileSystem.rename(ChecksumFileSystem.java:617) at org.apache.hadoop.fs.contract.AbstractFSContractTestBase.rename(AbstractFSContractTestBase.java:372) at org.apache.hadoop.fs.contract.AbstractContractRenameTest.expectRenameUnderFileFails(AbstractContractRenameTest.java:327) at org.apache.hadoop.fs.contract.AbstractContractRenameTest.testRenameFileUnderFile(AbstractContractRenameTest.java:299) 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:47) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44) 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.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27) at org.junit.rules.TestWatcher$1.evaluate(TestWatcher.java:55) at org.junit.internal.runners.statements.FailOnTimeout$StatementThread.run(FailOnTimeout.java:74) {code} This is amusing. The operation is calling {{srcFile.renameTo(dest)}}, which returns false. so then falls back to a copy, which fails in the mkdir() phase. Conclusion: trying to rename somethng under a file raises an exception. I think we should just document this as a special case, make it an option & have the ADL and native ones do it, any others if they want to. > Contract Tests to verify create, mkdirs and rename under a file is forbidden > ---------------------------------------------------------------------------- > > Key: HADOOP-14630 > URL: https://issues.apache.org/jira/browse/HADOOP-14630 > Project: Hadoop Common > Issue Type: Improvement > Components: fs, fs/azure, fs/s3, fs/swift > Affects Versions: 2.9.0 > Reporter: Steve Loughran > Assignee: Steve Loughran > Priority: Minor > Attachments: HADOOP-14630-001.patch, HADOOP-14630-002.patch, > HADOOP-14630-003.patch > > > Object stores can get into trouble in ways which an FS would never, do, ways > so obvious we've never done tests for them. We know what the problems are: > test for file and dir creation directly/indirectly under other files > * mkdir(file/file) > * mkdir(file/subdir) > * dir under file/subdir/subdir > * dir/dir2/file, verify dir & dir2 exist > * dir/dir2/dir3, verify dir & dir2 exist > * rename(src, file/dest) > * rename(src, file/dir/dest) -- This message was sent by Atlassian JIRA (v6.4.14#64029) --------------------------------------------------------------------- To unsubscribe, e-mail: common-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: common-issues-h...@hadoop.apache.org