Manjeet Singh created HBASE-19071: ------------------------------------- Summary: Import from Hbase version 0.94.27 to higher version 1.2.1 not working Key: HBASE-19071 URL: https://issues.apache.org/jira/browse/HBASE-19071 Project: HBase Issue Type: Bug Components: hbase Affects Versions: 1.2.1 Reporter: Manjeet Singh
Data migration from one cluster to another cluster in same N/W, but with a different version of hbase one is 0.94.27 (source cluster hbase) and another is destination cluster hbase version is 1.2.1. is not working. I have used below command to take backup of hbase table on source cluster is: ./hbase org.apache.hadoop.hbase.mapreduce.Export SPDBRebuild /data/backupData/ and as a result below files were genrated by using above command:- drwxr-xr-x 3 root root 4096 Dec 9 2016 _logs -rw-r--r-- 1 root root 788227695 Dec 16 2016 part-m-00000 -rw-r--r-- 1 root root 1098757026 Dec 16 2016 part-m-00001 -rw-r--r-- 1 root root 906973626 Dec 16 2016 part-m-00002 -rw-r--r-- 1 root root 1981769314 Dec 16 2016 part-m-00003 -rw-r--r-- 1 root root 2099785782 Dec 16 2016 part-m-00004 -rw-r--r-- 1 root root 4118835540 Dec 16 2016 part-m-00005 -rw-r--r-- 1 root root 14217981341 Dec 16 2016 part-m-00006 -rw-r--r-- 1 root root 0 Dec 16 2016 _SUCCESS I import these file in another Hbase version (1.2.1) in order to restore these files I am assuming I have to move these files in destination cluster and have to run below command hbase org.apache.hadoop.hbase.mapreduce.Import <tablename> <hdfs path on same cluster> sudo -u hdfs hbase org.apache.hadoop.hbase.mapreduce.Import test_table hdfs://<IP>:8020/data/ExportedFiles I am getting below error 17/10/23 16:13:50 INFO mapreduce.Job: Task Id : attempt_1505781444745_0070_m_000003_0, Status : FAILED Error: java.io.IOException: keyvalues=NONE read 2 bytes, should read 121347 at org.apache.hadoop.io.SequenceFile$Reader.getCurrentValue(SequenceFile.java:2306) at org.apache.hadoop.mapreduce.lib.input.SequenceFileRecordReader.nextKeyValue(SequenceFileRecordReader.java:78) at org.apache.hadoop.mapred.MapTask$NewTrackingRecordReader.nextKeyValue(MapTask.java:556) at org.apache.hadoop.mapreduce.task.MapContextImpl.nextKeyValue(MapContextImpl.java:80) at org.apache.hadoop.mapreduce.lib.map.WrappedMapper$Context.nextKeyValue(WrappedMapper.java:91) at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:144) at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:787) at org.apache.hadoop.mapred.MapTask.run(MapTask.java:341) at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:164) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:422) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1693) at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:158) -- This message was sent by Atlassian JIRA (v6.4.14#64029)