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From "Ana Mercan (RO)" <ana.mer...@pwc.com>
Subject SOLR issues after data Migration
Date Mon, 30 Jul 2018 07:02:24 GMT
Hi,

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

Version:


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
[https://lists.apache.org/thread.html/096ac35a70c31846fbe73694046d6f
adc8fe930b822bddf338babcc2@%3Csolr-user.lucene.apache.org%3E]


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
java.io.IOException: The accepted epoch, 19 is less than the current epoch,
63d

Research over the internet
https://issues.apache.org/jira/browse/ZOOKEEPER-2307

Notes:
I can navigate to http://xx.xxx.xxx.xxx:8986/solr/ - however i cannot see
the collections and instances
http://xx.xxx.xxx.xxx:8983/solr/en_cache/admin/ping -ok   --instance 1
http://xx.xxx.xxx.xxx:8984/solr/en_cache/admin/ping - 500 internal
error   --instance
2
http://xx.xxx.xxx.xxx:8985/solr/en_cache/admin/ping - 500 internal
error  --instance
3
http://xx.xxx.xxx.xxx:8986/solr/en_cache/admin/ping - 500 internal
error  --instance
4

SOLR 2 -Server 2

http://xx.xxx.xxx.xxx:8983/solr/en_cache/admin/ping -ok   --instance 1
http://xx.xxx.xxx.xxx:8984/solr/en_cache/admin/ping - 500 internal error
--instance 2
http://xx.xxx.xxx.xxx:8985/solr/en_cache/admin/ping - 500 internal
error  --instance
3
http://xx.xxx.xxx.xxx:8986/solr/en_cache/admin/ping - 500 internal
error  --instance
4
http://localhost:8983/solr/#/en_cache_shard1_replica2- icann see the
collections

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).

Thanks,
Ana

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