SOLR-14013 is only an issue in 7.7.1->8.3.x, so 6.x and newer 8.x should be fine.
Have you analyzed the OOM to see which part of the indexing process that was killing the heap? Jan > 29. mar. 2021 kl. 22:18 skrev Walter Underwood <wun...@wunderwood.org>: > > Does this fix need changes on both the client and server side of SolrJ? > Because of some older clusters, we are using SolrJ 4.4.10. We can upgrade to > 6.6.2, but that predates this fix. > > https://issues.apache.org/jira/browse/SOLR-14013 > > wunder > Walter Underwood > wun...@wunderwood.org > http://observer.wunderwood.org/ (my blog) > >> On Mar 29, 2021, at 11:33 AM, Walter Underwood <wun...@wunderwood.org> wrote: >> >> We have a cluster that is running out of heap during indexing. Our older >> cluster does not have this problem. Both clusters have 8 shards and 3 >> replica sets, for a total of 24 hosts. Both use the same G1GC settings. Both >> have the same indexing feed of 57 million documents. >> >> Old cluster: >> Solr 6.6.2 >> 11 GB heap >> Oracle Corporation OpenJDK 64-Bit Server VM 1.8.0_131 25.131-b11 >> >> New cluster: >> Solr 8.7.0 >> 16 GB heap >> Amazon.com Inc. OpenJDK 64-Bit Server VM 11.0.10 11.0.10+9-LTS >> >> Cache sizes on the new cluster are pretty standard, filter and query result >> caches are 512, document cache is 2048. Documents aren’t huge, maybe average >> size a few kbytes. They are homework problems. >> >> Any ideas? The 6.6.2 cluster has been running for a few years with no >> indexing problems. >> >> wunder >> Walter Underwood >> wun...@wunderwood.org >> http://observer.wunderwood.org/ (my blog) >> >