i got this error    when enable the hbase backup as below on hbase-site.xml <property> <name>hbase.backup.enable</name> <value>true</value> </property> <property> <name>hbase.master.logcleaner.plugins</name> <value>org.apache.hadoop.hbase.backup.master.BackupLogCleaner,...</value> </property> <property> <name>hbase.procedure.master.classes</name> <value>org.apache.hadoop.hbase.backup.master.LogRollMasterProcedureManager,...</value> </property> <property> <name>hbase.procedure.regionserver.classes</name> <value>org.apache.hadoop.hbase.backup.regionserver.LogRollRegionServerProcedureManager,...</value> </property> <property> <name>hbase.coprocessor.region.classes</name> <value>org.apache.hadoop.hbase.backup.BackupObserver,...</value> </property> <property> <name>hbase.master.hfilecleaner.plugins</name> <value>org.apache.hadoop.hbase.backup.BackupHFileCleaner,...</value> </property> <property> <name>hbase.cluster.distributed</name> <value>false</value> </property> <property> <name>hbase.tmp.dir</name> <value>./tmp</value> </property> <property> <name>hbase.unsafe.stream.capability.enforce</name> <value>false</value> </property> </configuration> ... View more