Hi Harsh,   Your option didnt work for me as well. I am facing similar issue, can you please help? ... View more

Hi Harsh, I have created a new thread with topic Exception in doCheckpoint ... View more

Hi Harsh,   The Error is Exception in doCheckpoint java.io.exception:Inconsistent checkpoint fields There is mismatch between namespaceID and blockpoolID The LV,Ctime and clusterID are matching I will create this in another thread as well but for urgent solution can you please reply here? Parallely creating new thread now   ... View more

Hi Harsh, I just observed that in one of the clusters where HA is not enabled, there has been no checkpointing right from the start. Can you confirm why this behaviour? The graph is like a linear line(never came down) for 'Transactions since last log checkpoint'   ... View more

Please find a part of krb5.cnf   dns_lookup_realm = false   dns_lookup_kdc = false   ticket_lifetime = 24h   renew_lifetime = 7d   forwardable = true ... View more

I found out that principal of namenode : hdfs/xyz.munich.com@ABC.com hostname : xyz.paris.com hostname --fqdn : xyz.munich.com   So from above 3 values you can see that hostname is not same as principal and FQDN. But as per my knowledge, only FQDN matters. Still, do you think incorrect hostname can cause this issue? ... View more

Hi Harsh,   I am getting below exception on the namenode though it doesnt affect my services. But once there wasnt an automatic failover though it was enabled. I found out following error logs : . .   Forwardable Ticket true Forwarded Ticket false Proxiable Ticket false Proxy Ticket false Postdated Ticket false Renewable Ticket false Initial Ticket false Auth Time = Wed Feb 03 13:49:37 CET 2016 Start Time = Wed Feb 03 13:49:40 CET 2016 End Time = Wed Feb 03 23:49:37 CET 2016 Renew Till = null Client Addresses  Null 2016-02-03 14:49:49,093 ERROR org.apache.hadoop.hdfs.server.namenode.ha.StandbyCheckpointer: Exception in doCheckpoint java.io.IOException: Exception during image upload: java.io.IOException: org.apache.hadoop.security.authentication.client.AuthenticationException: GSSException: No valid credentials provided (Mechanism level: Server not found in Kerberos database (7))         at org.apache.hadoop.hdfs.server.namenode.ha.StandbyCheckpointer.doCheckpoint(StandbyCheckpointer.java:221)         at org.apache.hadoop.hdfs.server.namenode.ha.StandbyCheckpointer.access$1400(StandbyCheckpointer.java:62)         at org.apache.hadoop.hdfs.server.namenode.ha.StandbyCheckpointer$CheckpointerThread.doWork(StandbyCheckpointer.java:353)         at org.apache.hadoop.hdfs.server.namenode.ha.StandbyCheckpointer$CheckpointerThread.access$700(StandbyCheckpointer.java:260)         at org.apache.hadoop.hdfs.server.namenode.ha.StandbyCheckpointer$CheckpointerThread$1.run(StandbyCheckpointer.java:280)         at java.security.AccessController.doPrivileged(Native Method)         at javax.security.auth.Subject.doAs(Subject.java:360)         at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1651)         at org.apache.hadoop.security.SecurityUtil.doAsLoginUserOrFatal(SecurityUtil.java:410)         at org.apache.hadoop.hdfs.server.namenode.ha.StandbyCheckpointer$CheckpointerThread.run(StandbyCheckpointer.java:276) Caused by: java.io.IOException: org.apache.hadoop.security.authentication.client.AuthenticationException: GSSException: No valid credentials provided (Mechanism level: Server not found in Kerberos database (7))         at org.apache.hadoop.hdfs.server.namenode.TransferFsImage.uploadImage(TransferFsImage.java:298)         at org.apache.hadoop.hdfs.server.namenode.TransferFsImage.uploadImageFromStorage(TransferFsImage.java:222)         at org.apache.hadoop.hdfs.server.namenode.ha.StandbyCheckpointer$1.call(StandbyCheckpointer.java:207) .. . . . .   ... View more

So, Do I have to forcibly use –skipTrash to delete anything in Encrypted zone or is there any workaround? ... View more

I had the same question too.   When we try to delete something from encryption zone, it says the directory cannot be moved to /user/xyz/.trash. So we have to forcefully use -skipTrash option.   So, is there a way to delete a file from encyption zone without using -skipTrash option? ... View more