Client fails to send non-UTF-8 query analytics content to server
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Jira Bot June 24, 2020 at 10:08 AM
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Nailya Kutlubaeva June 17, 2020 at 10:12 AM
tested and works ok.
Lalit Choudhary June 17, 2020 at 8:36 AMEdited
Alexey Palazhchenko June 16, 2020 at 9:11 AM
There were a lot of changes – please re-test the latest dev-latest build
Former user June 5, 2020 at 1:50 PM
Verified with perconalab/pmm-server-fb:PR-878-a87ac46.
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Thomas bruckmannPriority
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Environment
OS: CentOS Linux release 8.1.1911 (Core) (minimal installations with epel repo activated and nagios plugins for mysql)
MySQL Galera: Percona XtraDB Cluster 5.7.28-31.41.1.el8
Langpacks:
glibc-all-langpacks.x86_64 2.28-72.el8 @BaseOS
glibc-langpack-de.x86_64 2.28-72.el8 @BaseOS
glibc-langpack-en.x86_64 2.28-72.el8 @BaseOS
langpacks-de.noarch 1.0-12.el8 @AppStream
langpacks-en.noarch 1.0-12.el8 @AppStream
slang.x86_64 2.3.2-3.el8 @anaconda
Most recent updates are installed.
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Hello All,
We are currently testing PMM2, it is working quiet well so far, however we experiencing some problems with one of our Nodes. We currently monitor a Galera Cluster (Percona XtraDB Cluster 5.7.28-31.41.1.el8 running on CentOS Linux release 8.1.1911 (Core)) of 5 Nodes, 4 are already in PMM2, 3 of this 4 nodes are working well, system metric, mysql metrics and slow query logs are collected/sent to the server well.
One node only sends its metrics but not the slow query log, after enabling debug mode, I've seen the following messages:
Based on the messages, it seems, the rpc agent used internally is not able to marshall the message containing the slow query log, because of a non UTF-8 Character, however I analysed the slow query log of all servers and all slow query logs contain non UTF-8 characters, so why is only this one node not working?
May a bug in the pmm-agent? I am not sure, please help.
Additional Info:
We now turned off slow query log on that server, cleared the logfile entirely, then we enabled the slow query log again and restarted pmm-agent, afterward the slow queries were reported to the server for a few minutes until the same error appeared again. Seems like a bug in pmm-agent while marshalling slow query logs containing non UTF-8 chars and this is causing a cacellation of the rpc connection to the server which ends up in a whole restart of the agent it seems.
If you need any further Information, feel free to contact me.