Possibility of index out of sync with graph


Adam Holley <holl...@...>
 

Is it possible for the index (either Elasticsearch or Solr) to be out of sync with the store (cassandra or hbase) or is the store commit contingent on the index commit?  If it is possible, what conditions would cause being out of sync, what can be done to avoid it?
Thanks.
Adam.


Austin Sharp <austins...@...>
 

Yes, it can happen with ES and Cassandra in some error handling cases:
https://github.com/JanusGraph/janusgraph/issues/281

Hopefully the new ES implementation that is in master now doesn't have this problem.


On Monday, June 19, 2017 at 7:22:32 AM UTC-7, Adam Holley wrote:
Is it possible for the index (either Elasticsearch or Solr) to be out of sync with the store (cassandra or hbase) or is the store commit contingent on the index commit?  If it is possible, what conditions would cause being out of sync, what can be done to avoid it?
Thanks.
Adam.


Ralf Steppacher <ralf....@...>
 

Hi Austin,

Has https://github.com/thinkaurelius/titan/issues/788 been resolved somewhere on the way?

Ralf


On Tuesday, June 20, 2017 at 8:41:31 PM UTC+2, Austin Sharp wrote:
Yes, it can happen with ES and Cassandra in some error handling cases:
https://github.com/JanusGraph/janusgraph/issues/281

Hopefully the new ES implementation that is in master now doesn't have this problem.


Jason Plurad <plu...@...>
 

Hi Ralf,

It is still an issue. I've reproduced it and opened up https://github.com/JanusGraph/janusgraph/issues/410

-- Jason


On Wednesday, July 12, 2017 at 9:11:40 AM UTC-4, Ralf Steppacher wrote:
Hi Austin,

Has https://github.com/thinkaurelius/titan/issues/788 been resolved somewhere on the way?

Ralf

On Tuesday, June 20, 2017 at 8:41:31 PM UTC+2, Austin Sharp wrote:
Yes, it can happen with ES and Cassandra in some error handling cases:
https://github.com/JanusGraph/janusgraph/issues/281

Hopefully the new ES implementation that is in master now doesn't have this problem.