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Posted to issues@zookeeper.apache.org by "Benoit Sigoure (Jira)" <ji...@apache.org> on 2022/06/29 19:51:00 UTC
[jira] [Created] (ZOOKEEPER-4567) Sometimes ruok closes the connection without returning anything
Benoit Sigoure created ZOOKEEPER-4567:
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Summary: Sometimes ruok closes the connection without returning anything
Key: ZOOKEEPER-4567
URL: https://issues.apache.org/jira/browse/ZOOKEEPER-4567
Project: ZooKeeper
Issue Type: Bug
Components: server
Affects Versions: 3.7.1
Environment: zookeeper:3.7.1 Docker image
Reporter: Benoit Sigoure
{code:java}
$ while true; do echo -n .; res=`echo ruok | nc -v 127.0.0.1 2181 2>&1`; case $res in (*imok*) :;; (*) echo res=$res; break;; esac; done
......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................res=Connection to 127.0.0.1 2181 port [tcp/*] succeeded! {code}
Server logs don't contain smoking guns:
{code:java}
[...]
2022-06-29 19:40:07,354 [myid:1] - INFO [NIOWorkerThread-4:NIOServerCnxn@514] - Processing ruok command from /127.0.0.1:60440
2022-06-29 19:40:07,359 [myid:1] - INFO [NIOWorkerThread-2:NIOServerCnxn@514] - Processing ruok command from /127.0.0.1:60442
2022-06-29 19:40:07,364 [myid:1] - INFO [NIOWorkerThread-3:NIOServerCnxn@514] - Processing ruok command from /127.0.0.1:60444
2022-06-29 19:40:07,369 [myid:1] - INFO [NIOWorkerThread-4:NIOServerCnxn@514] - Processing ruok command from /127.0.0.1:60446
2022-06-29 19:40:10,216 [myid:1] - INFO [NIOWorkerThread-2:NIOServerCnxn@514] - Processing ruok command from /127.0.0.1:60490
2022-06-29 19:40:10,293 [myid:1] - INFO [NIOWorkerThread-4:NIOServerCnxn@514] - Processing ruok command from /127.0.0.1:60516 {code}
I can reproduce this consistently very easily.
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