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From "Ana Mercan (RO)" <>
Subject SOLR issues after data Migration
Date Mon, 30 Jul 2018 07:02:24 GMT

I have the following architecture :
2 SOLR servers Load balanced SOLR1 and SOLR 2 whereby we have installed 4
instances on both SOLRs.


What happened was that the E partition (where all instances where
installed) has been oversized therefore we wanted to migrate the data on a
new drive and swap the letter drivers.

The same was adviced also when I raised the concern on an older topic

After applying the changes i am running under following scenarios:

SOLR 1 issues -Server 1

Cannot run zookeeper services on all intances

Error in the zookeeper logs:

Unable to load database on disk The accepted epoch, 19 is less than the current epoch,

Research over the internet

I can navigate to - however i cannot see
the collections and instances -ok   --instance 1 - 500 internal
error   --instance
2 - 500 internal
error  --instance
3 - 500 internal
error  --instance

SOLR 2 -Server 2 -ok   --instance 1 - 500 internal error
--instance 2 - 500 internal
error  --instance
3 - 500 internal
error  --instance
http://localhost:8983/solr/#/en_cache_shard1_replica2- icann see the

All services are started and are in running state

However the error found is:
Zookeeper error: Cannot open channel to X at election address

Could you kindly reply back to this email with your suggestions?
Last time i couldn't see the thread on Apache site so I would appreciate if
you would reply back on this email thread also for visibility purposes (as
many people are CCed).


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