Deva created SOLR-16786:
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Summary: Zookeeper connection timeout even after Solr trying to
connect. Connection establishes after restarting the Solr service
Key: SOLR-16786
URL: https://issues.apache.org/jira/browse/SOLR-16786
Project: Solr
Issue Type: Bug
Security Level: Public (Default Security Level. Issues are Public)
Components: SolrCloud
Affects Versions: 8.6
Reporter: Deva
Zookeeper connection timeout is experienced, with all 3 zookeeper. Apache Solr
is removed from the live nodes once the connection timesout and connection
re-establishes after restarting the Solr service. Same issue observed with
different node where almost everyday a Solr node faces this connection timeout.
Solr version - 8.6.0
2023-05-03 09:28:19.743 WARN
(zkConnectionManagerCallback-15-thread-1-SendThread(<IPaddress>:2181)) [ ]
o.a.z.ClientCnxn Client session timed out, have not heard from server in
20208ms for sessionid 0x10029c51d7d001d
2023-05-03 09:28:36.024 INFO (qtp1164365897-2242) [ ] o.a.s.s.HttpSolrCall
[admin] webapp=null path=/admin/cores
params=\{action=STATUS&indexInfo=false&wt=json&version=2.2} status=0 QTime=0
2023-05-03 09:28:40.673 WARN
(zkConnectionManagerCallback-15-thread-1-SendThread(<IPaddress>:2181)) [ ]
o.a.z.ClientCnxn Client session timed out, have not heard from server in
20830ms for sessionid 0x10029c51d7d001d
2023-05-03 09:29:02.355 WARN
(zkConnectionManagerCallback-15-thread-1-SendThread(<IPaddress>:2181)) [ ]
o.a.z.ClientCnxn Client session timed out, have not heard from server in
21581ms for sessionid 0x10029c51d7d001d
2023-05-03 09:29:02.455 ERROR
(OverseerCollectionConfigSetProcessor-72103520617955357-10.10.107.103:8983_solr-n_0000000525)
[ ] o.a.s.c.OverseerTaskProcessor =>
org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode =
ConnectionLoss for /overseer_elect/leader
at org.apache.zookeeper.KeeperException.create(KeeperException.java:102)
org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode =
ConnectionLoss for /overseer_elect/leader
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