Ted Yu created HADOOP-13496: ------------------------------- Summary: Include file lengths in Mismatch in length error for distcp Key: HADOOP-13496 URL: https://issues.apache.org/jira/browse/HADOOP-13496 Project: Hadoop Common Issue Type: Improvement Reporter: Ted Yu Priority: Minor
Currently RetriableFileCopyCommand doesn't show the perceived lengths in Mismatch in length error: {code} 2016-08-12 10:23:14,231 ERROR [LocalJobRunner Map Task Executor #0] util.RetriableCommand(89): Failure in Retriable command: Copying hdfs://localhost:53941/user/tyu/test-data/dc7c674a-c463-4798-8260- c5d1e3440a4b/WALs/10.22.9.171,53952,1471022508087/10.22.9.171%2C53952%2C1471022508087.regiongroup-1.1471022510182 to hdfs://localhost:53941/backupUT/backup_1471022580616/WALs/10.22.9. 171%2C53952%2C1471022508087.regiongroup-1.1471022510182 java.io.IOException: Mismatch in length of source:hdfs://localhost:53941/user/tyu/test-data/dc7c674a-c463-4798-8260-c5d1e3440a4b/WALs/10.22.9.171,53952,1471022508087/10.22.9.171%2C53952%2C1471022508087.regiongroup-1.1471022510182 and target:hdfs://localhost:53941/backupUT/backup_1471022580616/WALs/.distcp.tmp.attempt_local344329843_0006_m_000000_0 at org.apache.hadoop.tools.mapred.RetriableFileCopyCommand.compareFileLengths(RetriableFileCopyCommand.java:193) at org.apache.hadoop.tools.mapred.RetriableFileCopyCommand.doCopy(RetriableFileCopyCommand.java:126) at org.apache.hadoop.tools.mapred.RetriableFileCopyCommand.doExecute(RetriableFileCopyCommand.java:99) at org.apache.hadoop.tools.util.RetriableCommand.execute(RetriableCommand.java:87) at org.apache.hadoop.tools.mapred.CopyMapper.copyFileWithRetry(CopyMapper.java:281) at org.apache.hadoop.tools.mapred.CopyMapper.map(CopyMapper.java:253) at org.apache.hadoop.tools.mapred.CopyMapper.map(CopyMapper.java:50) {code} It would be helpful to include what's the expected length and what's the real length. Thanks to [~yzhangal] for offline discussion. -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: common-dev-unsubscr...@hadoop.apache.org For additional commands, e-mail: common-dev-h...@hadoop.apache.org