# PMM 3.x

**URL:** https://forums.percona.com/c/percona-monitoring-and-management-pmm/pmm-3/84.md?page=2

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## [Too high load and QPS levels in QAN MySQL](https://forums.percona.com/t/too-high-load-and-qps-levels-in-qan-mysql/39417)

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**Author:** [@svist](https://forums.percona.com/u/svist)\
**Replies:** 2\
**Last updated:** [September 22, 2025, 7:01am UTC](https://forums.percona.com/t/too-high-load-and-qps-levels-in-qan-mysql/39417 "2025-09-22T07:01:28Z")

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MySQL: Server version: 5.7.35-38-log Percona Server (GPL), Release ‘38’, Revision ‘3692a61’ mysql\> show variables like ‘%slow%’; ±----------------------------------±-----------------------------------+ | Variable\_name…

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## [Looking to download PMM 3.3.0 client RPMs for RedHat 7 (el7) and RedHat 6 (el6)](https://forums.percona.com/t/looking-to-download-pmm-3-3-0-client-rpms-for-redhat-7-el7-and-redhat-6-el6/39385)

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**Author:** [@avi\_vainshtein](https://forums.percona.com/u/avi_vainshtein)\
**Replies:** 4\
**Last updated:** [September 21, 2025, 4:24am UTC](https://forums.percona.com/t/looking-to-download-pmm-3-3-0-client-rpms-for-redhat-7-el7-and-redhat-6-el6/39385 "2025-09-21T04:24:04Z")

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Greetings I’m looking for PMM 3.3.0 client RPMs for RedHat 7 (el7) and RedHat 6 (el6) hosts. Do they exist and are available for download ? thanks in advance, Avi

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## [Pmm-agent running "strange" queries](https://forums.percona.com/t/pmm-agent-running-strange-queries/39384)

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**Author:** [@FabricioPedrosoJorge](https://forums.percona.com/u/FabricioPedrosoJorge)\
**Replies:** 1\
**Last updated:** [September 15, 2025, 3:57pm UTC](https://forums.percona.com/t/pmm-agent-running-strange-queries/39384 "2025-09-15T15:57:58Z")

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Hello dear Percona team, On our PMM3 deployment, we can see that the “pmm-agent“ is running some strange queries on MySQL databases. These strange queries are all failing. For example: SELECT UNIX\_TIMESTAMP(ts), UNIX\_T…

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## [Get settings of exporters](https://forums.percona.com/t/get-settings-of-exporters/39198)

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**Author:** [@fredricj](https://forums.percona.com/u/fredricj)\
**Replies:** 3\
**Last updated:** [September 12, 2025, 2:51am UTC](https://forums.percona.com/t/get-settings-of-exporters/39198 "2025-09-12T02:51:16Z")

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Is there a way to get the settings of an exporters? For example I want to get the settings of –disable-tablestats-limit and –max-query-length from mysqld\_exporter

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## [PMM3.3.1 Alert rule templates for MongoDB](https://forums.percona.com/t/pmm3-3-1-alert-rule-templates-for-mongodb/39280)

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**Author:** [@Geert](https://forums.percona.com/u/Geert)\
**Replies:** 0\
**Last updated:** [September 4, 2025, 12:23pm UTC](https://forums.percona.com/t/pmm3-3-1-alert-rule-templates-for-mongodb/39280 "2025-09-04T12:23:10Z")

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Hi, The PMM Alerting –\> Alert rule templates don’t list the “MongoDB down” rule template compared to what is mentioned in the documentation. Is there a reason for that? Rgds, Geert

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## [PMM3 - Email functionality not working](https://forums.percona.com/t/pmm3-email-functionality-not-working/39219)

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**Author:** [@FabricioPedrosoJorge](https://forums.percona.com/u/FabricioPedrosoJorge)\
**Replies:** 7\
**Last updated:** [September 4, 2025, 11:03am UTC](https://forums.percona.com/t/pmm3-email-functionality-not-working/39219 "2025-09-04T11:03:17Z")

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Hello dear Percona team. While setting up PMM3 (deployed as a Docker container) and SMTP settings, we are facing an issue while testing/validating it. While testing email sending, we are getting this error: Failed to …

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## [PMM3.3.1 in Open Virtual Appliance: Failed to send test alert.: SMTP not configured, check your grafana.ini config file's \[SMTP\] section](https://forums.percona.com/t/pmm3-3-1-in-open-virtual-appliance-failed-to-send-test-alert-smtp-not-configured-check-your-grafana-ini-config-files-smtp-section/39254)

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**Author:** [@Geert](https://forums.percona.com/u/Geert)\
**Replies:** 19\
**Last updated:** [September 4, 2025, 11:02am UTC](https://forums.percona.com/t/pmm3-3-1-in-open-virtual-appliance-failed-to-send-test-alert-smtp-not-configured-check-your-grafana-ini-config-files-smtp-section/39254 "2025-09-04T11:02:48Z")

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Hi, My colleague installed PPM 3.3.1 on a OVA (Open Virtual Appliance). I have installed PMM 3.3.1 agents to monitor MongoDB Replica Sets. We want to test the Alerting functionality in PMM. When sending a Test mail, w…

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## [QAN not showing some query we know are running in database](https://forums.percona.com/t/qan-not-showing-some-query-we-know-are-running-in-database/38668)

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**Author:** [@svist](https://forums.percona.com/u/svist)\
**Replies:** 6\
**Last updated:** [September 2, 2025, 9:57am UTC](https://forums.percona.com/t/qan-not-showing-some-query-we-know-are-running-in-database/38668 "2025-09-02T09:57:06Z")

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Hi all. We a facing strange issue when some of query not showing in QAN. We can see them in perfomance\_schema events tables, but not in QAN. Environment: PMM server: 3.2.0 PMM client: 3.2.0 Database server: percon…

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## [How to set static port for mysql\_exporter](https://forums.percona.com/t/how-to-set-static-port-for-mysql-exporter/39241)

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**Author:** [@hung\_le](https://forums.percona.com/u/hung_le)\
**Replies:** 0\
**Last updated:** [September 1, 2025, 12:45pm UTC](https://forums.percona.com/t/how-to-set-static-port-for-mysql-exporter/39241 "2025-09-01T12:45:28Z")

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Hi all, Im having 3 nodes using: pmm-admin version: 3.3.1 pmm-agent version: 3.3.1 These agents running in Pull method. I set up mysql\_exporter using: pmm-admin add mysql –username=pmm –password=pmmpassword –h…

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## [PMM3 in AWS Marketplace](https://forums.percona.com/t/pmm3-in-aws-marketplace/38040)

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**Author:** [@ioannistz39](https://forums.percona.com/u/ioannistz39)\
**Replies:** 3\
**Last updated:** [August 15, 2025, 7:29pm UTC](https://forums.percona.com/t/pmm3-in-aws-marketplace/38040 "2025-08-15T19:29:09Z")

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When will PMM3 be available in the AWS Marketplace? The documentation says it is an installation option but I only see version 2.44.1 as being available.

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## [PMM 3.3.0 to 3.3.1 upgrade problem when restarting](https://forums.percona.com/t/pmm-3-3-0-to-3-3-1-upgrade-problem-when-restarting/39011)

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**Author:** [@Assistance-Nalta](https://forums.percona.com/u/Assistance-Nalta)\
**Replies:** 4\
**Last updated:** [August 7, 2025, 1:56pm UTC](https://forums.percona.com/t/pmm-3-3-0-to-3-3-1-upgrade-problem-when-restarting/39011 "2025-08-07T13:56:03Z")

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Linux Ubuntu 24.04.2 LTS Docker version 27.5.1 PMM 3.3.0 standard PMM installation performed, and worked well BUT We triyed to upgrade to 3.3.1, via UI, process starts, then stays forever on “Restarting PMM…” docker …

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## [PMM QAN - External clustered clickhouse schema issue](https://forums.percona.com/t/pmm-qan-external-clustered-clickhouse-schema-issue/38911)

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**Author:** [@Muralipmm](https://forums.percona.com/u/Muralipmm)\
**Replies:** 1\
**Last updated:** [August 6, 2025, 4:04pm UTC](https://forums.percona.com/t/pmm-qan-external-clustered-clickhouse-schema-issue/38911 "2025-08-06T16:04:32Z")

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Hi Team , We are hosting pmm on k8s environment with external clickhouse and postgresql and we started the pod with external by giving creds in the env config. PMM QAN API2 is created database and tables on the clkickho…

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## [PMM 3 - upgrade from 3.2.0 to 3.3.0 problem "Internal server error", code 13](https://forums.percona.com/t/pmm-3-upgrade-from-3-2-0-to-3-3-0-problem-internal-server-error-code-13/38726)

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**Author:** [@Kiwi](https://forums.percona.com/u/Kiwi)\
**Replies:** 2\
**Last updated:** [July 31, 2025, 6:21pm UTC](https://forums.percona.com/t/pmm-3-upgrade-from-3-2-0-to-3-3-0-problem-internal-server-error-code-13/38726 "2025-07-31T18:21:09Z")

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I set up a PMM on 3.2.0 version on our production environment. Today I saw that upgrade to 3.3.0 is ready, so I want to try upgrade pmm server by using upgrade function from UI. Unfortunately, I got “Internal server erro…

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## [Adding external-serverless is not even registering on pmm-admin list and not able to see any metrics collection](https://forums.percona.com/t/adding-external-serverless-is-not-even-registering-on-pmm-admin-list-and-not-able-to-see-any-metrics-collection/38819)

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**Author:** [@Garvit\_Jain](https://forums.percona.com/u/Garvit_Jain)\
**Replies:** 5\
**Last updated:** [July 25, 2025, 8:30pm UTC](https://forums.percona.com/t/adding-external-serverless-is-not-even-registering-on-pmm-admin-list-and-not-able-to-see-any-metrics-collection/38819 "2025-07-25T20:30:20Z")

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I tried adding external-serverless for monitoring some kafka broker as they are already exposing prometheus endpoints from MSK Open-Monitoring pmm-admin add external-serverless runs and give success message but I am no…

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## [Configuring labels on host-related metrics](https://forums.percona.com/t/configuring-labels-on-host-related-metrics/38799)

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**Author:** [@guba-dlaunikitis](https://forums.percona.com/u/guba-dlaunikitis)\
**Replies:** 2\
**Last updated:** [July 24, 2025, 7:22pm UTC](https://forums.percona.com/t/configuring-labels-on-host-related-metrics/38799 "2025-07-24T19:22:57Z")

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Package Versions PMM Client: 3.3.0 PMM Server: 3.2.0 Subject I have been setting up some alerting rules in Grafana, and I ran into an issue while trying to use custom labels. I ran the following command to add the PM…

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## [PMM Dashboard shows TLS=false despite successful HTTPS configuration](https://forums.percona.com/t/pmm-dashboard-shows-tls-false-despite-successful-https-configuration/38763)

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**Author:** [@Marvin\_Stelter](https://forums.percona.com/u/Marvin_Stelter)\
**Replies:** 2\
**Last updated:** [July 24, 2025, 9:26am UTC](https://forums.percona.com/t/pmm-dashboard-shows-tls-false-despite-successful-https-configuration/38763 "2025-07-24T09:26:54Z")

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Hi, I have successfully configured my PMM Server to use SSL/TLS certificates. The setup is working correctly - I can view the certificate details in my browser (see attached screenshot). Following the official document…

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## [PMM 3 - Correct SELinux configuration for use with a separate disk?](https://forums.percona.com/t/pmm-3-correct-selinux-configuration-for-use-with-a-separate-disk/38645)

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**Author:** [@SuperHammer](https://forums.percona.com/u/SuperHammer)\
**Replies:** 2\
**Last updated:** [July 11, 2025, 3:04pm UTC](https://forums.percona.com/t/pmm-3-correct-selinux-configuration-for-use-with-a-separate-disk/38645 "2025-07-11T15:04:05Z")

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Hello there, I believe the following threads and issues: All refer to the same issue: In the installation procedure, it is not specified whether to keep SELinux enabled or disabled. In my case, the container woul…

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## [Pmm v3 update not possible](https://forums.percona.com/t/pmm-v3-update-not-possible/37463)

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**Author:** [@Marvin\_Stelter](https://forums.percona.com/u/Marvin_Stelter)\
**Replies:** 14\
**Last updated:** [July 11, 2025, 10:53am UTC](https://forums.percona.com/t/pmm-v3-update-not-possible/37463 "2025-07-11T10:53:10Z")

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Hi, Unfortunately, I can’t update to PMM v3.1.0 via the UI. When I try, I get the following error: “Failed to check watchtower host” Both Docker Compose configurations use the same WATCHTOWER\_HTTP\_API\_TOKEN. The updat…

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## [PMM upgrade from 2.44.1 to 3.2.0 - Migrations: Dirty database version 18](https://forums.percona.com/t/pmm-upgrade-from-2-44-1-to-3-2-0-migrations-dirty-database-version-18/38588)

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**Author:** [@dba\_S4dscjz](https://forums.percona.com/u/dba_S4dscjz)\
**Replies:** 2\
**Last updated:** [July 9, 2025, 4:01pm UTC](https://forums.percona.com/t/pmm-upgrade-from-2-44-1-to-3-2-0-migrations-dirty-database-version-18/38588 "2025-07-09T16:01:24Z")

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Hello there, As we plan to upgrade MySQL to version 8.4, we also need to upgrade PMM as MySQL 8.4 has been supported since PMM 3.2. As described here Migrate PMM 2 to PMM 3 - Percona Monitoring and Management, we first…

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## [Percona Alerting not enabled](https://forums.percona.com/t/percona-alerting-not-enabled/38265)

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**Author:** [@SteveTelrock](https://forums.percona.com/u/SteveTelrock)\
**Replies:** 7\
**Last updated:** [July 1, 2025, 8:08am UTC](https://forums.percona.com/t/percona-alerting-not-enabled/38265 "2025-07-01T08:08:42Z")

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I have installed PMM latest version 3 using the manual instructions. According to the docs Percona Alerting should be enabled by default but it was not active. I restarted the docker image with the environment variable…

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## [Pmm2 Client/Pmm3](https://forums.percona.com/t/pmm2-client-pmm3/38432)

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**Author:** [@meyerder](https://forums.percona.com/u/meyerder)\
**Replies:** 5\
**Last updated:** [June 27, 2025, 11:41am UTC](https://forums.percona.com/t/pmm2-client-pmm3/38432 "2025-06-27T11:41:08Z")

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I know what my issue is, but I could swear I had it working on some systems somewhere. I just can’t figure out where or how I did it. My PMM Server is version 3.0.0. I have some old CentOS 7.9 systems still in use (we’r…

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## [\[PMM 3.1.0\] Built-in Dashboards Not Showing Metrics in PMM3](https://forums.percona.com/t/pmm-3-1-0-built-in-dashboards-not-showing-metrics-in-pmm3/38442)

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**Author:** [@pmm3.1](https://forums.percona.com/u/pmm3.1)\
**Replies:** 0\
**Last updated:** [June 25, 2025, 9:49am UTC](https://forums.percona.com/t/pmm-3-1-0-built-in-dashboards-not-showing-metrics-in-pmm3/38442 "2025-06-25T09:49:36Z")

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Hello Percona Support Team, We are currently using PMM3 in our production environment, and I’ve run into an issue after attempting to route Grafana alerts through an internal proxy. Initially, we were unable to send S…

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## [PMM server is not receiving metrics from client](https://forums.percona.com/t/pmm-server-is-not-receiving-metrics-from-client/38382)

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**Author:** [@Sumit\_sarova](https://forums.percona.com/u/Sumit_sarova)\
**Replies:** 19\
**Last updated:** [June 25, 2025, 7:28am UTC](https://forums.percona.com/t/pmm-server-is-not-receiving-metrics-from-client/38382 "2025-06-25T07:28:06Z")

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Recently, we received a PMM client update request. After updating the agents on all monitored nodes, the system has stopped functioning as expected. Specifically, the inbuilt dashboards are no longer displaying the requi…

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## [PMM v3 postgres performance with timescaledb](https://forums.percona.com/t/pmm-v3-postgres-performance-with-timescaledb/38273)

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**Author:** [@glay](https://forums.percona.com/u/glay)\
**Replies:** 4\
**Last updated:** [June 12, 2025, 7:51am UTC](https://forums.percona.com/t/pmm-v3-postgres-performance-with-timescaledb/38273 "2025-06-12T07:51:55Z")

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Hi, I’m running the pmm-agent on both my prod and dev databases and noticing really high CPU when installing the postgres service (node monitoring isn’t causing any issues) on my smaller dev instances (using t3a.medium o…

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## [Pmm-agent "404 Not Found" trying to register with server](https://forums.percona.com/t/pmm-agent-404-not-found-trying-to-register-with-server/38231)

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**Author:** [@DCL-aliens](https://forums.percona.com/u/DCL-aliens)\
**Replies:** 5\
**Last updated:** [June 12, 2025, 7:01am UTC](https://forums.percona.com/t/pmm-agent-404-not-found-trying-to-register-with-server/38231 "2025-06-12T07:01:04Z")

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Hi, Just venturing in to the Percona monitoring world. I’ve got the server set up in an Ubuntu 24.04 VM with the script that installs docker and the latest container (pmm-server:3). That’s all working fine as far as I c…

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## [Pmm3.00 /srv is not writable for pmm user](https://forums.percona.com/t/pmm3-00-srv-is-not-writable-for-pmm-user/37037)

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**Author:** [@chaerring](https://forums.percona.com/u/chaerring)\
**Replies:** 12\
**Last updated:** [June 11, 2025, 1:06pm UTC](https://forums.percona.com/t/pmm3-00-srv-is-not-writable-for-pmm-user/37037 "2025-06-11T13:06:42Z")

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Description: \[Detailed description of the issue or question\] IF pmm3 execution user and pmm2 execution user are different ? The following error occurs when running the pmm3 Docker container: --------------------------…

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## [PMM Client-Side Caching in 3.2.0 & HA Setup for PMM Server in Kubernetes](https://forums.percona.com/t/pmm-client-side-caching-in-3-2-0-ha-setup-for-pmm-server-in-kubernetes/38243)

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**Author:** [@Arul\_Deepan\_Anbumani](https://forums.percona.com/u/Arul_Deepan_Anbumani)\
**Replies:** 4\
**Last updated:** [June 10, 2025, 11:29am UTC](https://forums.percona.com/t/pmm-client-side-caching-in-3-2-0-ha-setup-for-pmm-server-in-kubernetes/38243 "2025-06-10T11:29:34Z")

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Hi Percona Team, We’re currently using PMM Server and Clients v3.1.0, and planning to upgrade to v3.2.0. I read that PMM 2.33 introduced client-side caching using the embedded vmagent to reduce metrics loss during shor…

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## [Error: Request failed with status code 500](https://forums.percona.com/t/error-request-failed-with-status-code-500/38048)

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**Author:** [@kazak157](https://forums.percona.com/u/kazak157)\
**Replies:** 8\
**Last updated:** [June 7, 2025, 2:03pm UTC](https://forums.percona.com/t/error-request-failed-with-status-code-500/38048 "2025-06-07T14:03:32Z")

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Whenever I save PMM Configuration settings, I get the error Error: Request failed with status code 500 logger.ts:24 \[WARN\] $e {message: 'Request failed with status code 500', name: 'AxiosError', code: 'ERR\_BAD\_RESPONSE'…

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## [Need something similar to integrated alerting from PMM V2 into PMM V3](https://forums.percona.com/t/need-something-similar-to-integrated-alerting-from-pmm-v2-into-pmm-v3/38195)

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**Author:** [@Sai\_Teja\_Varma](https://forums.percona.com/u/Sai_Teja_Varma)\
**Replies:** 1\
**Last updated:** [June 3, 2025, 8:02pm UTC](https://forums.percona.com/t/need-something-similar-to-integrated-alerting-from-pmm-v2-into-pmm-v3/38195 "2025-06-03T20:02:19Z")

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Hi team, We are using the integrated alerting on PMM v2 into a grafana dashboard as a fall back option for our monitoring system It has been removed from V3 is there any alertive to that

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## [Pmm-agent - Can't extract table names from query insert into. Too long query in pg\_stat\_statements results in errors in log](https://forums.percona.com/t/pmm-agent-cant-extract-table-names-from-query-insert-into-too-long-query-in-pg-stat-statements-results-in-errors-in-log/37890)

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**Author:** [@Kiwi](https://forums.percona.com/u/Kiwi)\
**Replies:** 4\
**Last updated:** [June 2, 2025, 4:46am UTC](https://forums.percona.com/t/pmm-agent-cant-extract-table-names-from-query-insert-into-too-long-query-in-pg-stat-statements-results-in-errors-in-log/37890 "2025-06-02T04:46:43Z")

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Hello there. Since few weeks I’m using PMM to monitor PostgreSQL clusters on test environment. I’ve noticed that pmm-agent on some of the PostgreSQL clusters overflowing the log file on the virtual machine (/var/logs/me…

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