https://community.cloudera.com/t5/Support-Questions/Hbase-backup-failed/m-p/306696#M222963 <P>2020-12-02 05:37:06,411 WARN [main] impl.BackupManager: Waiting to acquire backup exclusive lock for 3487s<BR />2020-12-02 05:38:06,508 WARN [main] impl.BackupManager: Waiting to acquire backup exclusive lock for 3547s<BR />2020-12-02 05:38:59,592 ERROR [main] impl.BackupAdminImpl: There is an active session already running<BR />Backup session finished. Status: FAILURE<BR />2020-12-02 05:38:59,594 ERROR [main] backup.BackupDriver: Error running command-line tool<BR />java.io.IOException: Failed to acquire backup system table exclusive lock after 3600s<BR />at org.apache.hadoop.hbase.backup.impl.BackupManager.startBackupSession(BackupManager.java:415)<BR />at org.apache.hadoop.hbase.backup.impl.TableBackupClient.init(TableBackupClient.java:104)<BR />at org.apache.hadoop.hbase.backup.impl.TableBackupClient.&lt;init&gt;(TableBackupClient.java:81)<BR />at org.apache.hadoop.hbase.backup.impl.FullTableBackupClient.&lt;init&gt;(FullTableBackupClient.java:62)<BR />at org.apache.hadoop.hbase.backup.BackupClientFactory.create(BackupClientFactory.java:51)<BR />at org.apache.hadoop.hbase.backup.impl.BackupAdminImpl.backupTables(BackupAdminImpl.java:595)<BR />at org.apache.hadoop.hbase.backup.impl.BackupCommands$CreateCommand.execute(BackupCommands.java:347)<BR />at org.apache.hadoop.hbase.backup.BackupDriver.parseAndRun(BackupDriver.java:138)<BR />at org.apache.hadoop.hbase.backup.BackupDriver.doWork(BackupDriver.java:171)<BR />at org.apache.hadoop.hbase.backup.BackupDriver.run(BackupDriver.java:204)<BR />at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:76)<BR />at org.apache.hadoop.hbase.backup.BackupDriver.main(BackupDriver.java:179)</P> Wed, 02 Dec 2020 05:41:01 GMT Manoj690 2020-12-02T05:41:01Z