Re: 6.4.0 collection leader election and recovery issues

2017-02-02 Thread Ravi Solr
Thanks Shawn. Yes I did index some docs after moving to 6.4.0. The release notes did not mention anything about format being changed so I thought it would be backward compatible. Yeah my only recourse is to re-index data. Apart from that it was weird problems overall with 6.4.0. I was excited about

Re: 6.4.0 collection leader election and recovery issues

2017-02-02 Thread Shawn Heisey
On 2/2/2017 7:23 AM, Ravi Solr wrote: > When i try to rollback from 6.4.0 to my original version of 6.0.1 it now > throws another issue. Now I cant go to 6.4.0 nor can I roll back to 6.0.1 > > Could not load codec 'Lucene62'. Did you forget to add > lucene-backward-codecs.jar? > at org.apache.

Re: 6.4.0 collection leader election and recovery issues

2017-02-02 Thread Ravi Solr
Thanks Hendrik. Iam baffled as to why I did not hit this issue prior to moving to 6.4.0. On Thu, Feb 2, 2017 at 7:58 AM, Hendrik Haddorp wrote: > Might be that your overseer queue overloaded. Similar to what is described > here: > https://support.lucidworks.com/hc/en-us/articles/203959903- > Bri

Re: 6.4.0 collection leader election and recovery issues

2017-02-02 Thread Ravi Solr
When i try to rollback from 6.4.0 to my original version of 6.0.1 it now throws another issue. Now I cant go to 6.4.0 nor can I roll back to 6.0.1 Could not load codec 'Lucene62'. Did you forget to add lucene-backward-codecs.jar? at org.apache.lucene.index.SegmentInfos.readCodec(SegmentInfos.

Re: 6.4.0 collection leader election and recovery issues

2017-02-02 Thread Hendrik Haddorp
Might be that your overseer queue overloaded. Similar to what is described here: https://support.lucidworks.com/hc/en-us/articles/203959903-Bringing-up-downed-Solr-servers-that-don-t-want-to-come-up If the overseer queue gets too long you get hit by this: https://github.com/Netflix/curator/wiki/

Re: 6.4.0 collection leader election and recovery issues

2017-02-02 Thread Ravi Solr
Following up on my previous email, the intermittent server unavailability seems to be linked to the interaction between Solr and Zookeeper. Can somebody help me understand what this error means and how to recover from it. 2017-02-02 09:44:24.648 ERROR (recoveryExecutor-3-thread-16-processing-n:xx.