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Posted to users@solr.apache.org by NonStopOPS <co...@nonstopops.io> on 2022/04/21 13:53:27 UTC

TLOG replicas: replication time and openSearcher true or false?

Hi all,

I've got a question about TLOG replicas.

We are running Solr 8.7 using TLOG replicas.  Despite the logic in 
https://github.com/apache/lucene-solr/blob/branch_8_7/solr/core/src/java/org/apache/solr/cloud/ReplicateFromLeader.java, 
the replication to the TLOGs seems to happen (based on logging) mostly 
based on the full value of autoCommmitMaxTime, though sometimes we do 
see it in half that time.  However, when we have autoSoftCommmitMaxTime 
defined as well, it ignores that time.  I don't understand how, but 
that's just what we see.

To force replication every 15 seconds, I commented out the 
autoSoftCommit and put in a hard commit time of 15 seconds. That seems 
to work just fine.  But my question is: should openSearcher be true or 
false?  If I understand correctly, it should be true, but I've found 
some confusing statements in various places so I just want to confirm.

TIA,

Lajos



Lajos Moczar

lajos@nonstopops.io

	


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