[TRAFODION-1966] [offline backup&restore] TrafexportSnapshot ran into NoClassDefFoundError on HDP2.4

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.3
• Component/s: db-utility-backup-restore
• Environment: centos6.7, hbase1.1 HDP2.4.0
• Assignee: liu ming
• Reporter: Gao, Rui-Xian
• Created: 03/May/16 14:27
• Updated: 15/Sep/18 07:32
• Resolved: 18/Jan/18 15:00

Description

offline backup on HDP2.4.0 will run into error –

./run_full_trafodion_backup.sh

Exporting TRAFODION.RACHEL_QA.IDX1_SNAP_20160503-2207 ...
hbase org.trafodion.utility.backuprestore.TrafExportSnapshot -snapshot TRAFODION.RACHEL_QA.IDX1_SNAP_20160503-2207 -copy-to hdfs://suse-0.novalocal:8020/trafodion_backups/backup_20160503-2207/TRAFODION.RACHEL_QA.IDX1_SNAP_20160503-2207 -mappers 0 -mr-lowlimit-mb 100
2016-05-03 22:09:49,141 INFO [main] backuprestore.TrafExportSnapshot: Trafodion Export Snapshot Utility
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/usr/hdp/2.3.4.7-4/hadoop/lib/slf4j-log4j12-1.7.10.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/usr/hdp/2.3.4.7-4/zookeeper/lib/slf4j-log4j12-1.6.1.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
SLF4J: Actual binding is of type [org.slf4j.impl.Log4jLoggerFactory]
2016-05-03 22:09:50,797 INFO [main] backuprestore.TrafExportSnapshot: Copy Snapshot Manifest
2016-05-03 22:09:51,246 INFO [main] backuprestore.TrafExportSnapshot: Loading Snapshot 'TRAFODION.RACHEL_QA.IDX1_SNAP_20160503-2207' hfile list
2016-05-03 22:09:51,487 INFO [main] backuprestore.TrafExportSnapshot: Copy Snapshot Data Files
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/hadoop/hbase/mob/MobUtils
at org.trafodion.utility.backuprestore.TrafExportSnapshot.getCopyInputPath(TrafExportSnapshot.java:1052)
at org.trafodion.utility.backuprestore.TrafExportSnapshot.run(TrafExportSnapshot.java:983)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:76)
at org.trafodion.utility.backuprestore.TrafExportSnapshot.innerMain(TrafExportSnapshot.java:1109)
at org.trafodion.utility.backuprestore.TrafExportSnapshot.main(TrafExportSnapshot.java:1114)
Caused by: java.lang.ClassNotFoundException: org.apache.hadoop.hbase.mob.MobUtils
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 5 more
***[ERROR]: Error while exporting snapshot: TRAFODION.RACHEL_QA.IDX1_SNAP_20160503-2207.
For more information please check the logs at /home/trafodion/esgynDBadv-20160501_0830-bin/hbase_utilities/backup_and_restore/logs/run_traf_backup_20160503-2207.log.

Issue Links

• links to: GitHub Pull Request #1398