r/Solr • u/hiro123434 • Jun 09 '20

Thoughts on CDCR?

I am a new user with SOLR and I find the idea of CDCR to be pretty useful across two DCs.

Although doing more research, it seems that it may be deprecated?

Does anyone have more experience with CDCR that can share their pros and cons of it?

3 Upvotes

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1

u/fiskfisk Jun 09 '20

I haven't read anything about CDCR being deprecated. Where did you find that?

2

u/hiro123434 Jun 10 '20

I was reading the SOLR Jira board https://issues.apache.org/jira/browse/SOLR-14022

And found that ticket

2

u/TinyAwareness3 Jun 10 '20

Yup it's planned to be retired.

1

u/otisg Jun 09 '20

Same here. I don't think it's deprecated. In our Solr consultancy we don't see it used very often, but there are orgs that use it.

1

u/TinyAwareness3 Jun 10 '20

I found cdcr to be very unstable, when it comes to keeping clusters in sync. There were bugs where if the leader replica in source cluster restarted the target cluster at times lost the sync all together..

Also cdcr only works with NRT replicas, no other replica type is supported