NAGARAJAN S created SOLR-17210:
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Summary: Index Fetch Failed Issue in Solr
Key: SOLR-17210
URL: https://issues.apache.org/jira/browse/SOLR-17210
Project: Solr
Issue Type: Bug
Security Level: Public (Default Security Level. Issues are Public)
Components: replication (java), replication (scripts)
Affects Versions: 9.1.1
Reporter: NAGARAJAN S
Hi Team
I deployed 10 Solr and 3 zookeeper nodes in AKS. Each solr of capacity 6 CPU
and 32 GB JVM and disk of 4 TB per solr and 40 TB shared. Our disk is only 5 to
10% utilized.
We are following TRA collection on daily basis each daily collection do have 5
shards. We are taking backup using Solr Backup APIs.Our solr is storing 150
Million data per day.
each Shards with two replicas. For a collection, shards are following the
default Simple Placement Factory. Replicas are placed in sorted list of nodes.
However, solr pods are getting restarted on weekly basis on AKS. which causes
some of the shards on the restarted pods are not coming up it is in
Down/recovery failed/recovery. We had to manually delete and create replica in
order to fix it which incurred data loss.
There are four issues
# If replica is down, solr does not automatically add replicas in other
available nodes.. autoaddreplicas is deprecated from Solr 9. We are not sure
what to use for automatically add replicas.
# Our frequently occuring errors related to replication in solr logs are below
o.a.s.c.RecoveryStrategy Error while trying to recover =>
org.apache.solr.common.SolrException: Replication for recovery failed.
3. our frequently occuring errors related to index in solr logs are below
o.a.s.h.ReplicationHandler Index fetch failed =>
org.apache.solr.common.SolrException: Index fetch failed :
4. Shutdown log line
o.a.s.s.HttpSolrCall Unable to write response, client closed connection or we
are shutting down => org.eclipse.jetty.io.EofException: Closed
Please provide your suggestions to fix the issue
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