OSDir


[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Restoring snapshot


Change RF fir k2 and then see.

Sent from my iPhone

On Jun 13, 2018, at 7:05 AM, <Vishal1.Sharma@xxxxxxx> <Vishal1.Sharma@xxxxxxx> wrote:

For both K1 and K2, replication factor is 2 in the new cluster(although the number of nodes is 1). I can understand the portion of the warning which says that “only 1 replica could be found” but the question is, why is it giving the name of keyspace K2 when I was restoring only K1(It should have given warning for K1).

 

From: Nitan Kainth [mailto:nitankainth@xxxxxxxxx]
Sent: Wednesday, June 13, 2018 4:31 PM
To: user@xxxxxxxxxxxxxxxxxxxx
Subject: Re: Restoring snapshot

 

Verify dc name and replication factor in create keyspace command in new cluster.

Sent from my iPhone


On Jun 13, 2018, at 2:40 AM, <Vishal1.Sharma@xxxxxxx> <Vishal1.Sharma@xxxxxxx> wrote:

Dear Community,

 

I took a snapshot from a node which was part of a 2 node cluster. There were 2 keyspaces in that cluster K1 and K2. I took snapshot of K1 only. Now I create both keyspaces in some other cluster having only one node. When I tried to restore the snapshot(of keyspace K1) in that cluster using sstableloader, I got a warning:

 

“WARN  11:55:48,921 Error while computing token map for keyspace K2 with datacenter dc1: could not achieve replication factor 2 (found 1 replicas only), check your keyspace replication settings.”

 

Like I’ve said above, the new cluster contains only one node, therefore I can understand the portion of the warning telling me that ‘it only found 1 replicas only’, but why is it computing token map for keyspace K2 when I was restoring sstables of keyspace K1? Also, the same warning(regarding only K2) is displayed whether I try to restore snapshot of K1 or K2.  Although, I’m able to get the complete data, but I would appreciate if someone can explain this observations.

 

Cassandra version: 3.11.2

 

Thanks and regards,

Vishal Sharma


"Confidentiality Warning: This message and any attachments are intended only for the use of the intended recipient(s), are confidential and may be privileged. If you are not the intended recipient, you are hereby notified that any review, re-transmission, conversion to hard copy, copying, circulation or other use of this message and any attachments is strictly prohibited. If you are not the intended recipient, please notify the sender immediately by return email and delete this message and any attachments from your system.

Virus Warning: Although the company has taken reasonable precautions to ensure no viruses are present in this email. The company cannot accept responsibility for any loss or damage arising from the use of this email or attachment."


"Confidentiality Warning: This message and any attachments are intended only for the use of the intended recipient(s), are confidential and may be privileged. If you are not the intended recipient, you are hereby notified that any review, re-transmission, conversion to hard copy, copying, circulation or other use of this message and any attachments is strictly prohibited. If you are not the intended recipient, please notify the sender immediately by return email and delete this message and any attachments from your system.

Virus Warning: Although the company has taken reasonable precautions to ensure no viruses are present in this email. The company cannot accept responsibility for any loss or damage arising from the use of this email or attachment."