We noticed this issue in our solr clusters right after when Solr cluster is
restarted or Solr cluster is live for some time. Based on my research so
far... I am not seeing zookeeper connection issues from zk server side. It
seems it is solr side ( zk client) side. This issue is pretty constant now
and then.
Error 1 Solr:
WARN - 2018-02-06 17:35:04.742;
org.apache.solr.common.cloud.ConnectionManager; Our previous ZooKeeper
session was expired. Attempting to reconnect to recover relationship with
ZooKeeper...
ERROR - 2018-02-06 17:35:04.743; org.apache.solr.common.SolrException;
org.apache.solr.common.SolrException: Cannot talk to ZooKeeper - Updates are
disabled.
at
org.apache.solr.update.processor.DistributedUpdateProcessor.zkCheck(DistributedUpdateProcessor.java:1508)
at
org.apache.solr.update.processor.DistributedUpdateProcessor.processAdd(DistributedUpdateProcessor.java:696)
at
org.apache.solr.handler.loader.JavabinLoader$1.update(JavabinLoader.java:97)
Error 2:
>From ingestor log:
/var/log/mwired/core-ingestors/app.log.9:2018-03-30 05:44:52,616 [-38] ERROR
org.apache.solr.client.solrj.impl.CloudSolrClient - Request to collection
failed due to (503)
org.apache.solr.client.solrj.impl.HttpSolrClient$RemoteSolrException: Error
from server at : Cannot talk to ZooKeeper - Updates are disabled., retry? 0
/var/log/mwired/core-ingestors/app.log.9:com.mwired.grid.commons.exception.PersistenceException:
Failed to add 11 docs to solr0 collection , cachedDocs=118; because Error
from server at : Cannot talk to ZooKeeper - Updates are disabled.
Wondering is there any fix? Appreciate any input.
http://lucene.472066.n3.nabble.com/Cannot-talk-to-ZooKeeper-Updates-are-disabled-Solr-6-3-0-td4311582.html
http://lucene.472066.n3.nabble.com/6-6-Cannot-talk-to-ZooKeeper-Updates-are-disabled-td4352917.html
https://issues.apache.org/jira/browse/SOLR-3274
Thanks in advance.
Murux
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