Varun Thacker created SOLR-12544:
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Summary: ZkStateReader can cache deleted collections and never
refresh it
Key: SOLR-12544
URL: https://issues.apache.org/jira/browse/SOLR-12544
Project: Solr
Issue Type: Bug
Security Level: Public (Default Security Level. Issues are Public)
Affects Versions: 7.2.1
Reporter: Varun Thacker
After a delete collection call, CLUSTERSTATUS starts breaking with this error
permanently with this error
{code:java}
org.apache.solr.common.SolrException: Error loading config name for collection
my_collection
at
org.apache.solr.common.cloud.ZkStateReader.readConfigName(ZkStateReader.java:198)
at
org.apache.solr.handler.admin.ClusterStatus.getClusterStatus(ClusterStatus.java:141)
...
Caused by: org.apache.zookeeper.KeeperException$NoNodeException:
KeeperErrorCode = NoNode for /collections/my_collection
...{code}
SOLR-10720 addresses the problem by skipping over the collection as it was
aimed to fix the race condition between delete collection and CLUSTERSTATUS
being called.
The fact that we see the error never go away , means there is another bug
lingering which will make the state never refresh and thus other calls list
LIST will always show the collection.
This happened with Solr 7.2.1 and doesn't happen very often. But when it does
the only solution is to restart the node.
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