Anshum Gupta created SOLR-9290:
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Summary: TCP-connections in CLOSE_WAIT spikes during heavy
indexing when SSL is enabled
Key: SOLR-9290
URL: https://issues.apache.org/jira/browse/SOLR-9290
Project: Solr
Issue Type: Bug
Security Level: Public (Default Security Level. Issues are Public)
Affects Versions: 5.5.2, 5.5.1
Reporter: Anshum Gupta
Priority: Critical
Heavy indexing on Solr with SSL leads to a lot of connections in CLOSE_WAIT
state.
At my workplace, we have seen this issue only with 5.5.1 and could not
reproduce it with 5.4.1 but from my conversation with Shalin, he knows of users
with 5.3.1 running into this issue too.
Here's an excerpt from the email [~shaie] sent to the mailing list (about what
we see:
{quote}
1) It consistently reproduces on 5.5.1, but *does not* reproduce on 5.4.1
2) It does not reproduce when SSL is disabled
3) Restarting the Solr process (sometimes both need to be restarted), the
count drops to 0, but if indexing continues, they climb up again
When it does happen, Solr seems stuck. The leader cannot talk to the
replica, or vice versa, the replica is usually put in DOWN state and
there's no way to fix it besides restarting the JVM.
{quote}
Here's the mail thread:
http://mail-archives.apache.org/mod_mbox/lucene-solr-user/201607.mbox/%[email protected]%3E
Creating this issue so we could track this and have more people comment on what
they see.
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