Re: Multi dc replication failing

2022-02-21 Thread Bowen Song
You've sent the email from a different email address. I will assume I'm writing to the same person for now. Normally, you shouldn't persistently have a different schema version between DCs or between nodes in the same DC. However, this can occasionally happen, for example when multiple schema

Re: Multi dc replication failing

2022-02-21 Thread DB-men
Sure, thanks Bowen for the reply. I found the DC where we are observing data not getting replicated is currently having a different schema version as I see All other DC have a schema version in common. Does that signify anything. May that attribute towards data inconsistency. I just want to

Re: Multi dc replication failing

2022-02-21 Thread Bowen Song
What do you mean by saying "correctly replicated"? Keep in mind by using LOCAL_QUORUM, you should *not* expect the data to be strongly consistent when the read and write are in different DCs. If that's desired, use EACH_QUORUM on either read or write, and keep the other at LOCAL_QUORUM. On

Multi dc replication failing

2022-02-21 Thread Inquistive allen
Hello Team, I have a multi dc Cassandra setup. We write and read using local quorum to a particular datacenter A The replica definition in schema is correct. Sometimes we don't see data getting correctly replicated to datacenter B. I need to know what may be different ways to troubleshoot this.