See <https://builds.apache.org/job/Hadoop-Hdfs-trunk-Java8/1216/changes>
Changes: [epayne] YARN-5069. TestFifoScheduler.testResourceOverCommit race condition. ------------------------------------------ [...truncated 9046 lines...] Tests run: 5, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 1.41 sec - in org.apache.hadoop.tools.TestTools Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=768m; support was removed in 8.0 Running org.apache.hadoop.tools.TestJMXGet Tests run: 12, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 11.814 sec - in org.apache.hadoop.net.TestNetworkTopology Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=768m; support was removed in 8.0 Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 53.053 sec - in org.apache.hadoop.hdfs.TestFileCreationClient Running org.apache.hadoop.cli.TestErasureCodingCLI Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=768m; support was removed in 8.0 Running org.apache.hadoop.cli.TestHDFSCLI Tests run: 13, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 105.632 sec - in org.apache.hadoop.hdfs.TestReconstructStripedFile Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=768m; support was removed in 8.0 Running org.apache.hadoop.cli.TestCryptoAdminCLI Tests run: 2, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 10.695 sec - in org.apache.hadoop.tools.TestJMXGet Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=768m; support was removed in 8.0 Running org.apache.hadoop.cli.TestAclCLI Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 10.84 sec - in org.apache.hadoop.cli.TestErasureCodingCLI Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=768m; support was removed in 8.0 Running org.apache.hadoop.cli.TestDeleteCLI Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 10.785 sec - in org.apache.hadoop.cli.TestCryptoAdminCLI Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=768m; support was removed in 8.0 Running org.apache.hadoop.cli.TestXAttrCLI Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 7.299 sec - in org.apache.hadoop.cli.TestAclCLI Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=768m; support was removed in 8.0 Running org.apache.hadoop.cli.TestCacheAdminCLI Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 9.302 sec - in org.apache.hadoop.cli.TestDeleteCLI Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=768m; support was removed in 8.0 Running org.apache.hadoop.TestRefreshCallQueue Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 9.119 sec - in org.apache.hadoop.cli.TestXAttrCLI Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=768m; support was removed in 8.0 Running org.apache.hadoop.fs.TestWebHdfsFileContextMainOperations Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 8.722 sec - in org.apache.hadoop.cli.TestCacheAdminCLI Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=768m; support was removed in 8.0 Running org.apache.hadoop.fs.TestFcHdfsSetUMask Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 6.62 sec - in org.apache.hadoop.TestRefreshCallQueue Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=768m; support was removed in 8.0 Running org.apache.hadoop.fs.contract.hdfs.TestHDFSContractConcat Tests run: 12, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 7.814 sec - in org.apache.hadoop.fs.TestFcHdfsSetUMask Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=768m; support was removed in 8.0 Running org.apache.hadoop.fs.contract.hdfs.TestHDFSContractRootDirectory Tests run: 4, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 8.598 sec - in org.apache.hadoop.fs.contract.hdfs.TestHDFSContractConcat Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=768m; support was removed in 8.0 Running org.apache.hadoop.fs.contract.hdfs.TestHDFSContractRename Tests run: 61, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 15.858 sec - in org.apache.hadoop.fs.TestWebHdfsFileContextMainOperations Tests run: 6, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 7.309 sec - in org.apache.hadoop.fs.contract.hdfs.TestHDFSContractRootDirectory Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=768m; support was removed in 8.0 Running org.apache.hadoop.fs.contract.hdfs.TestHDFSContractSetTimes Tests run: 6, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 7.858 sec - in org.apache.hadoop.fs.contract.hdfs.TestHDFSContractRename Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=768m; support was removed in 8.0 Running org.apache.hadoop.fs.contract.hdfs.TestHDFSContractOpen Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=768m; support was removed in 8.0 Running org.apache.hadoop.fs.contract.hdfs.TestHDFSContractAppend Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 6.375 sec - in org.apache.hadoop.fs.contract.hdfs.TestHDFSContractSetTimes Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=768m; support was removed in 8.0 Running org.apache.hadoop.fs.contract.hdfs.TestHDFSContractCreate Tests run: 6, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 7.214 sec - in org.apache.hadoop.fs.contract.hdfs.TestHDFSContractOpen Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=768m; support was removed in 8.0 Running org.apache.hadoop.fs.contract.hdfs.TestHDFSContractGetFileStatus Tests run: 5, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 7.407 sec - in org.apache.hadoop.fs.contract.hdfs.TestHDFSContractAppend Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=768m; support was removed in 8.0 Running org.apache.hadoop.fs.contract.hdfs.TestHDFSContractSeek Tests run: 6, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 7.278 sec - in org.apache.hadoop.fs.contract.hdfs.TestHDFSContractCreate Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=768m; support was removed in 8.0 Running org.apache.hadoop.fs.contract.hdfs.TestHDFSContractDelete Tests run: 2, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 6.758 sec - in org.apache.hadoop.fs.contract.hdfs.TestHDFSContractGetFileStatus Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=768m; support was removed in 8.0 Running org.apache.hadoop.fs.contract.hdfs.TestHDFSContractMkdir Tests run: 8, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 7.934 sec - in org.apache.hadoop.fs.contract.hdfs.TestHDFSContractDelete Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=768m; support was removed in 8.0 Running org.apache.hadoop.fs.TestResolveHdfsSymlink Tests run: 18, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 12.776 sec - in org.apache.hadoop.fs.contract.hdfs.TestHDFSContractSeek Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=768m; support was removed in 8.0 Running org.apache.hadoop.fs.TestSymlinkHdfsDisable Tests run: 5, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 7.625 sec - in org.apache.hadoop.fs.contract.hdfs.TestHDFSContractMkdir Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=768m; support was removed in 8.0 Running org.apache.hadoop.fs.permission.TestStickyBit Tests run: 4, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 6.611 sec - in org.apache.hadoop.fs.TestResolveHdfsSymlink Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=768m; support was removed in 8.0 Running org.apache.hadoop.fs.TestUrlStreamHandler Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 6.23 sec - in org.apache.hadoop.fs.TestSymlinkHdfsDisable Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=768m; support was removed in 8.0 Running org.apache.hadoop.fs.loadGenerator.TestLoadGenerator Tests run: 2, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 6.639 sec - in org.apache.hadoop.fs.TestUrlStreamHandler Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=768m; support was removed in 8.0 Running org.apache.hadoop.fs.viewfs.TestViewFsWithXAttrs Tests run: 6, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 13.019 sec - in org.apache.hadoop.fs.permission.TestStickyBit Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=768m; support was removed in 8.0 Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 83.701 sec - in org.apache.hadoop.cli.TestHDFSCLI Running org.apache.hadoop.fs.viewfs.TestViewFsDefaultValue Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=768m; support was removed in 8.0 Running org.apache.hadoop.fs.viewfs.TestViewFsHdfs Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 8.264 sec - in org.apache.hadoop.fs.viewfs.TestViewFsWithXAttrs Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=768m; support was removed in 8.0 Running org.apache.hadoop.fs.viewfs.TestViewFsWithAcls Tests run: 7, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 7.411 sec - in org.apache.hadoop.fs.viewfs.TestViewFsDefaultValue Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=768m; support was removed in 8.0 Running org.apache.hadoop.fs.viewfs.TestViewFsFileStatusHdfs Tests run: 2, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 17.413 sec - in org.apache.hadoop.fs.loadGenerator.TestLoadGenerator Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=768m; support was removed in 8.0 Running org.apache.hadoop.fs.viewfs.TestViewFileSystemHdfs Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 8.821 sec - in org.apache.hadoop.fs.viewfs.TestViewFsWithAcls Tests run: 2, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 7.542 sec - in org.apache.hadoop.fs.viewfs.TestViewFsFileStatusHdfs Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=768m; support was removed in 8.0 Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=768m; support was removed in 8.0 Tests run: 58, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 15.828 sec - in org.apache.hadoop.fs.viewfs.TestViewFsHdfs Running org.apache.hadoop.fs.viewfs.TestViewFileSystemWithXAttrs Running org.apache.hadoop.fs.viewfs.TestViewFileSystemWithAcls Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=768m; support was removed in 8.0 Running org.apache.hadoop.fs.viewfs.TestViewFileSystemAtHdfsRoot Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 8.744 sec - in org.apache.hadoop.fs.viewfs.TestViewFileSystemWithXAttrs Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 8.83 sec - in org.apache.hadoop.fs.viewfs.TestViewFileSystemWithAcls Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=768m; support was removed in 8.0 Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=768m; support was removed in 8.0 Running org.apache.hadoop.fs.viewfs.TestViewFsAtHdfsRoot Running org.apache.hadoop.fs.TestHDFSFileContextMainOperations Tests run: 60, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 23.661 sec - in org.apache.hadoop.fs.viewfs.TestViewFileSystemHdfs Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=768m; support was removed in 8.0 Running org.apache.hadoop.fs.TestSymlinkHdfsFileContext Tests run: 58, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 12.427 sec - in org.apache.hadoop.fs.viewfs.TestViewFsAtHdfsRoot Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=768m; support was removed in 8.0 Running org.apache.hadoop.fs.TestGlobPaths Tests run: 60, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 22.45 sec - in org.apache.hadoop.fs.viewfs.TestViewFileSystemAtHdfsRoot Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=768m; support was removed in 8.0 Running org.apache.hadoop.fs.TestSymlinkHdfsFileSystem Tests run: 69, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 16.438 sec - in org.apache.hadoop.fs.TestHDFSFileContextMainOperations Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=768m; support was removed in 8.0 Running org.apache.hadoop.fs.shell.TestHdfsTextCommand Tests run: 37, Failures: 0, Errors: 0, Skipped: 6, Time elapsed: 8.327 sec - in org.apache.hadoop.fs.TestGlobPaths Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=768m; support was removed in 8.0 Running org.apache.hadoop.fs.TestSWebHdfsFileContextMainOperations Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 7.527 sec - in org.apache.hadoop.fs.shell.TestHdfsTextCommand Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=768m; support was removed in 8.0 Running org.apache.hadoop.fs.TestHdfsNativeCodeLoader Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.284 sec - in org.apache.hadoop.fs.TestHdfsNativeCodeLoader Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=768m; support was removed in 8.0 Running org.apache.hadoop.fs.TestFcHdfsPermission Tests run: 71, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 18.36 sec - in org.apache.hadoop.fs.TestSymlinkHdfsFileContext Tests run: 74, Failures: 0, Errors: 0, Skipped: 2, Time elapsed: 19.887 sec - in org.apache.hadoop.fs.TestSymlinkHdfsFileSystem Tests run: 4, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 8.374 sec - in org.apache.hadoop.fs.TestFcHdfsPermission Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=768m; support was removed in 8.0 Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=768m; support was removed in 8.0 Running org.apache.hadoop.fs.TestEnhancedByteBufferAccess Running org.apache.hadoop.fs.TestFcHdfsCreateMkdir Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=768m; support was removed in 8.0 Running org.apache.hadoop.fs.TestUnbuffer Tests run: 8, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 8.122 sec - in org.apache.hadoop.fs.TestFcHdfsCreateMkdir Tests run: 61, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 23.149 sec - in org.apache.hadoop.fs.TestSWebHdfsFileContextMainOperations Tests run: 2, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 9.67 sec - in org.apache.hadoop.fs.TestUnbuffer Tests run: 10, Failures: 0, Errors: 0, Skipped: 1, Time elapsed: 26.28 sec - in org.apache.hadoop.fs.TestEnhancedByteBufferAccess Results : Failed tests: TestDFSUpgradeWithHA.testRollbackWithJournalNodes:687 null TestStorageMover.testNoSpaceDisk:688 file = /cold/foo types = [ARCHIVE, ARCHIVE, ] expected:<[disk=0, archive=3]> but was:<[disk=0, archive=2]> Tests in error: TestDistributedFileSystem.testDFSClientPeerWriteTimeout:1261 IO write timedout... TestAsyncDFSRename.testAggressiveConcurrentAsyncAPI:289->internalTestConcurrentAsyncAPI:395 » TestAsyncDFSRename.testAggressiveConcurrentAsyncRenameWithOverwrite:199->internalTestConcurrentAsyncRenameWithOverwrite:225->Object.wait:-2 » TestDataNodeHotSwapVolumes.testRemoveVolumeBeingWritten » IO Failed to replace... TestDataNodeMultipleRegistrations.testClusterIdMismatchAtStartupWithHA:253 » ... Tests run: 4419, Failures: 2, Errors: 5, Skipped: 17 [INFO] [INFO] ------------------------------------------------------------------------ [INFO] Skipping Apache Hadoop HDFS Native Client [INFO] This project has been banned from the build due to previous failures. [INFO] ------------------------------------------------------------------------ [INFO] [INFO] ------------------------------------------------------------------------ [INFO] Skipping Apache Hadoop HttpFS [INFO] This project has been banned from the build due to previous failures. [INFO] ------------------------------------------------------------------------ [INFO] [INFO] ------------------------------------------------------------------------ [INFO] Skipping Apache Hadoop HDFS BookKeeper Journal [INFO] This project has been banned from the build due to previous failures. [INFO] ------------------------------------------------------------------------ [INFO] [INFO] ------------------------------------------------------------------------ [INFO] Skipping Apache Hadoop HDFS-NFS [INFO] This project has been banned from the build due to previous failures. [INFO] ------------------------------------------------------------------------ [INFO] [INFO] ------------------------------------------------------------------------ [INFO] Building Apache Hadoop HDFS Project 3.0.0-alpha1-SNAPSHOT [INFO] ------------------------------------------------------------------------ [INFO] [INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ hadoop-hdfs-project --- [INFO] Deleting <https://builds.apache.org/job/Hadoop-Hdfs-trunk-Java8/ws/hadoop-hdfs-project/target> [INFO] [INFO] --- maven-antrun-plugin:1.7:run (create-testdirs) @ hadoop-hdfs-project --- [INFO] Executing tasks main: [mkdir] Created dir: <https://builds.apache.org/job/Hadoop-Hdfs-trunk-Java8/ws/hadoop-hdfs-project/target/test-dir> [INFO] Executed tasks [INFO] [INFO] --- maven-source-plugin:2.3:jar-no-fork (hadoop-java-sources) @ hadoop-hdfs-project --- [INFO] [INFO] --- maven-source-plugin:2.3:test-jar-no-fork (hadoop-java-sources) @ hadoop-hdfs-project --- [INFO] [INFO] --- maven-enforcer-plugin:1.3.1:enforce (dist-enforce) @ hadoop-hdfs-project --- [INFO] [INFO] --- maven-site-plugin:3.5:attach-descriptor (attach-descriptor) @ hadoop-hdfs-project --- [INFO] [INFO] --- maven-javadoc-plugin:2.8.1:jar (module-javadocs) @ hadoop-hdfs-project --- [INFO] Not executing Javadoc as the project is not a Java classpath-capable package [INFO] [INFO] --- maven-enforcer-plugin:1.3.1:enforce (depcheck) @ hadoop-hdfs-project --- [INFO] [INFO] --- maven-checkstyle-plugin:2.15:checkstyle (default-cli) @ hadoop-hdfs-project --- [INFO] [INFO] --- findbugs-maven-plugin:3.0.0:findbugs (default-cli) @ hadoop-hdfs-project --- [INFO] ------------------------------------------------------------------------ [INFO] Reactor Summary: [INFO] [INFO] Apache Hadoop HDFS Client ......................... SUCCESS [04:23 min] [INFO] Apache Hadoop HDFS ................................ FAILURE [ 01:15 h] [INFO] Apache Hadoop HDFS Native Client .................. SKIPPED [INFO] Apache Hadoop HttpFS .............................. SKIPPED [INFO] Apache Hadoop HDFS BookKeeper Journal ............. SKIPPED [INFO] Apache Hadoop HDFS-NFS ............................ SKIPPED [INFO] Apache Hadoop HDFS Project ........................ SUCCESS [ 0.097 s] [INFO] ------------------------------------------------------------------------ [INFO] BUILD FAILURE [INFO] ------------------------------------------------------------------------ [INFO] Total time: 01:19 h [INFO] Finished at: 2016-05-16T22:53:15+00:00 [INFO] Final Memory: 59M/1036M [INFO] ------------------------------------------------------------------------ [ERROR] Failed to execute goal org.apache.maven.plugins:maven-surefire-plugin:2.17:test (default-test) on project hadoop-hdfs: There are test failures. [ERROR] [ERROR] Please refer to <https://builds.apache.org/job/Hadoop-Hdfs-trunk-Java8/ws/hadoop-hdfs-project/hadoop-hdfs/target/surefire-reports> for the individual test results. [ERROR] -> [Help 1] [ERROR] [ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch. [ERROR] Re-run Maven using the -X switch to enable full debug logging. [ERROR] [ERROR] For more information about the errors and possible solutions, please read the following articles: [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException [ERROR] [ERROR] After correcting the problems, you can resume the build with the command [ERROR] mvn <goals> -rf :hadoop-hdfs Build step 'Execute shell' marked build as failure Archiving artifacts Recording test results --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-dev-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-dev-h...@hadoop.apache.org