# \#pmm **URL:** https://forums.percona.com/tag/pmm/6.md [Latest](https://forums.percona.com/latest.md) · [Categories](https://forums.percona.com/categories.md) · [Tags](https://forums.percona.com/tags.md) --- ## [PXC 8.4.6: LOCK\_ticket\_store\_ops mutex instances grow with cumulative connections](https://forums.percona.com/t/pxc-8-4-6-lock-ticket-store-ops-mutex-instances-grow-with-cumulative-connections/41203)
**Author:** [@Wu\_Nan\_Lin](https://forums.percona.com/u/Wu_Nan_Lin)\ **Replies:** 4\ **Last updated:** [August 25, 2026, 2:11pm UTC](https://forums.percona.com/t/pxc-8-4-6-lock-ticket-store-ops-mutex-instances-grow-with-cumulative-connections/41203 "2026-08-25T14:11:31Z")
Hello Percona team, We are seeing continuous growth of this Performance Schema mutex instance on a three-node staging PXC cluster: wait/synch/mutex/sql/MDL\_ticket\_store::LOCK\_ticket\_store\_ops Environment PXC: 8.4.6-6.… --- ## [Pmm-client v3.7.0 conflicting with itself](https://forums.percona.com/t/pmm-client-v3-7-0-conflicting-with-itself/40715)
**Author:** [@asnyp](https://forums.percona.com/u/asnyp)\ **Replies:** 2\ **Last updated:** [April 27, 2026, 10:50am UTC](https://forums.percona.com/t/pmm-client-v3-7-0-conflicting-with-itself/40715 "2026-04-27T10:50:57Z")
Hi everyone, I have set up the pmm to monitor some database instances across different hosts but I keep getting alerts that the pmm-client package has a conflict defined with itself: # dnf install pmm-client Installed:… --- ## [PMM 3.6.0: Drilldown Logs App not found](https://forums.percona.com/t/pmm-3-6-0-drilldown-logs-app-not-found/40707)
**Author:** [@shigaev.s](https://forums.percona.com/u/shigaev.s)\ **Replies:** 1\ **Last updated:** [April 24, 2026, 2:43pm UTC](https://forums.percona.com/t/pmm-3-6-0-drilldown-logs-app-not-found/40707 "2026-04-24T14:43:58Z")
Hello! After updating PMM from 3.5.0 to 3.6.0, Drilldown Logs doesn’t work. The UI changed significantly in 3.6. Previously, you could open Drilldown from the menu, but now you can’t. And when going from Explore to Dr… --- ## [Upgrade from 3.6 to 3.7 fails](https://forums.percona.com/t/upgrade-from-3-6-to-3-7-fails/40670)
**Author:** [@ks27](https://forums.percona.com/u/ks27)\ **Replies:** 1\ **Last updated:** [April 18, 2026, 4:41pm UTC](https://forums.percona.com/t/upgrade-from-3-6-to-3-7-fails/40670 "2026-04-18T16:41:19Z")
Just pulled pmm 3.7, started as usual, but the container stays “unhealthy” and postgresgl14.log shows a lot of 2026-04-18 13:06:05.050 UTC \[1175\] FATAL: password authentication failed for user “pmm-managed” 2026-04-18… --- ## [NOT able get the collection metrics and DBs in the PMM MongoDB collections overview dashboard](https://forums.percona.com/t/not-able-get-the-collection-metrics-and-dbs-in-the-pmm-mongodb-collections-overview-dashboard/40586)
**Author:** [@vishnu](https://forums.percona.com/u/vishnu)\ **Replies:** 3\ **Last updated:** [April 10, 2026, 7:14am UTC](https://forums.percona.com/t/not-able-get-the-collection-metrics-and-dbs-in-the-pmm-mongodb-collections-overview-dashboard/40586 "2026-04-10T07:14:44Z")
Hi I am currently running PMM Server v3.7.0 as a Docker container on a separate server, and PMM Client v3.7.0 on the host machine for a MongoDB replica set. I am working on a secondary node. I am able to view basic met… --- ## [Documentation gap: PMM\_CLICKHOUSE\_IS\_CLUSTER / PMM\_CLICKHOUSE\_CLUSTER\_NAME for HA + external ClickHouse](https://forums.percona.com/t/documentation-gap-pmm-clickhouse-is-cluster-pmm-clickhouse-cluster-name-for-ha-external-clickhouse/40591)
**Author:** [@ddkozyreva](https://forums.percona.com/u/ddkozyreva)\ **Replies:** 0\ **Last updated:** [April 9, 2026, 1:13am UTC](https://forums.percona.com/t/documentation-gap-pmm-clickhouse-is-cluster-pmm-clickhouse-cluster-name-for-ha-external-clickhouse/40591 "2026-04-09T01:13:56Z")
Hi team! I’d like to flag a documentation gap that cost us several hours of debugging in a PMM 3.6.0 HA setup with an external 3-node ClickHouse cluster (one shard, three replicas, ZooKeeper present, macros configured). … --- ## [Possible HA issue with /srv/pmm-encryption.key not being shared between nodes](https://forums.percona.com/t/possible-ha-issue-with-srv-pmm-encryption-key-not-being-shared-between-nodes/40583)
**Author:** [@ddkozyreva](https://forums.percona.com/u/ddkozyreva)\ **Replies:** 1\ **Last updated:** [April 8, 2026, 10:30am UTC](https://forums.percona.com/t/possible-ha-issue-with-srv-pmm-encryption-key-not-being-shared-between-nodes/40583 "2026-04-08T10:30:45Z")
Hi team, I’ve been running a 3-node PMM Server HA cluster (PMM 3.6.0, Docker, deployed per the official HA guide with shared external PostgreSQL and ClickHouse) and ran into something that looks like a regression compar… --- ## [Pmm dashboard's taking too long to load](https://forums.percona.com/t/pmm-dashboards-taking-too-long-to-load/40578)
**Author:** [@Divinstar\_S](https://forums.percona.com/u/Divinstar_S)\ **Replies:** 4\ **Last updated:** [April 7, 2026, 5:46pm UTC](https://forums.percona.com/t/pmm-dashboards-taking-too-long-to-load/40578 "2026-04-07T17:46:57Z")
Description: I have setup Pmm server in a monitor node and it is responsible for 128 or so DB server’s(almost all of it is RDS). The issue is when I try to access Pmm UI’s System overview or any db overview like PSQL, it… --- ## [Discovered a bug in PMM 3.6.0 PostgreSQL exporter (CloudSQL)](https://forums.percona.com/t/discovered-a-bug-in-pmm-3-6-0-postgresql-exporter-cloudsql/40384)
**Author:** [@Simeon\_Petkov](https://forums.percona.com/u/Simeon_Petkov)\ **Replies:** 1\ **Last updated:** [April 2, 2026, 7:58pm UTC](https://forums.percona.com/t/discovered-a-bug-in-pmm-3-6-0-postgresql-exporter-cloudsql/40384 "2026-04-02T19:58:08Z")
Hello all, Yesterday after some debugging I have found that PostgreSQL exporter crashes when adding a new CloudSQL service when in “pg\_settings” we have “google\_dataplex.max\_messages” with a value like “-1:132” More de… --- ## [MongoDB Collection overview - missing data](https://forums.percona.com/t/mongodb-collection-overview-missing-data/40381)
**Author:** [@MarekPlichta](https://forums.percona.com/u/MarekPlichta)\ **Replies:** 1\ **Last updated:** [March 20, 2026, 11:26am UTC](https://forums.percona.com/t/mongodb-collection-overview-missing-data/40381 "2026-03-20T11:26:01Z")
Edit: I managed to fix it. For anyone dealing with a similar problem, the issue was that the default max-collections-limit is set to 200, but since my instance had over 300 collections in total, it wasn’t getting collect… --- ## [Conditions for ExternalVM are skipped when HA\_mode is true](https://forums.percona.com/t/conditions-for-externalvm-are-skipped-when-ha-mode-is-true/40367)
**Author:** [@ddkozyreva](https://forums.percona.com/u/ddkozyreva)\ **Replies:** 1\ **Last updated:** [March 17, 2026, 11:09pm UTC](https://forums.percona.com/t/conditions-for-externalvm-are-skipped-when-ha-mode-is-true/40367 "2026-03-17T23:09:25Z")
Hi! I have two problems with HA mode on the largest installations. And both of them probably caused by this commit which added \`&& !HA.Enabled\` to the condition that previously skipped config validation for external VM s… --- ## [How to connect PMM to the quickstart postgres database](https://forums.percona.com/t/how-to-connect-pmm-to-the-quickstart-postgres-database/40249)
**Author:** [@Glenn\_Glazer](https://forums.percona.com/u/Glenn_Glazer)\ **Replies:** 9\ **Last updated:** [March 3, 2026, 3:03pm UTC](https://forums.percona.com/t/how-to-connect-pmm-to-the-quickstart-postgres-database/40249 "2026-03-03T15:03:23Z")
I created a database using the kubernetes quickstart here: With kubectl - Percona Operator for PostgreSQL I can connect to it using: kubectl run -i --rm --tty pg-client --image=perconalab/percona-distribution-postgresq… --- ## [Monitoring ProxySQL for PostgreSQL](https://forums.percona.com/t/monitoring-proxysql-for-postgresql/40221)
**Author:** [@shigaev.s](https://forums.percona.com/u/shigaev.s)\ **Replies:** 2\ **Last updated:** [February 17, 2026, 8:19am UTC](https://forums.percona.com/t/monitoring-proxysql-for-postgresql/40221 "2026-02-17T08:19:06Z")
Hello! I’m testing the new release of ProxySQL 3.0.5 for PostgreSQL 15. pmm-client 3.6.0-7 installed. I really miss ProxySQL monitoring for PostgreSQL, similar to MySQL. Currently, I’m manually monitoring statistics … --- ## [Service Summary -\> ERROR 1045 (28000): Access denied for user 'pmm'@'localhost' (using password: YES)](https://forums.percona.com/t/service-summary-error-1045-28000-access-denied-for-user-pmm-localhost-using-password-yes/40193)
**Author:** [@Tomasz\_Chmielewski](https://forums.percona.com/u/Tomasz_Chmielewski)\ **Replies:** 1\ **Last updated:** [February 12, 2026, 1:51pm UTC](https://forums.percona.com/t/service-summary-error-1045-28000-access-denied-for-user-pmm-localhost-using-password-yes/40193 "2026-02-12T13:51:23Z")
Description: In MySQL → Summary → Service Summary, I’m getting: ERROR 1045 (28000): Access denied for user 'pmm'@'localhost' (using password: YES) 2026\_02\_11\_13\_06\_44 Cannot connect to MySQL. Check that MySQL is runnin… --- ## [Get-pmm.sh Script PMM2 to 3 upgrade not working](https://forums.percona.com/t/get-pmm-sh-script-pmm2-to-3-upgrade-not-working/40118)
**Author:** [@Jimmy\_Chen](https://forums.percona.com/u/Jimmy_Chen)\ **Replies:** 14\ **Last updated:** [February 6, 2026, 11:53pm UTC](https://forums.percona.com/t/get-pmm-sh-script-pmm2-to-3-upgrade-not-working/40118 "2026-02-06T23:53:39Z")
I’m trying to follow the documentation on Migrate PMM 2 to PMM 3 - Percona Monitoring and Management to migrate from PMM2 to 3. However, the script get-pmm.sh is not working. It is attempting to create a Docker volume to… --- ## [Mongodb\_exporter giving error after successfully connecting and showing down as a service in PMM](https://forums.percona.com/t/mongodb-exporter-giving-error-after-successfully-connecting-and-showing-down-as-a-service-in-pmm/39245)
**Author:** [@standon22](https://forums.percona.com/u/standon22)\ **Replies:** 2\ **Last updated:** [January 29, 2026, 10:44pm UTC](https://forums.percona.com/t/mongodb-exporter-giving-error-after-successfully-connecting-and-showing-down-as-a-service-in-pmm/39245 "2026-01-29T22:44:20Z")
Description: Service is added successfully but getting errors “context deadlne exceeded” Steps to Reproduce: Simply add a service using service add command. pmm-admin add mongodb psmdb\_node\_1 --replication-set=ReplSet … --- ## [How can we prevent PMM queries from appearing in the RDS MySQL slow query log?](https://forums.percona.com/t/how-can-we-prevent-pmm-queries-from-appearing-in-the-rds-mysql-slow-query-log/40079)
**Author:** [@srinivasms](https://forums.percona.com/u/srinivasms)\ **Replies:** 2\ **Last updated:** [January 24, 2026, 10:32pm UTC](https://forums.percona.com/t/how-can-we-prevent-pmm-queries-from-appearing-in-the-rds-mysql-slow-query-log/40079 "2026-01-24T22:32:36Z")
Description: we have around 2000 rds mysql instance being monitored by the PMM we have set the long\_query\_time set to 1 sec some times the pmm queries also get logged in the slow query log , which we dont want. how we c… --- ## [Metrics Retention Not Working as Expected in PMM Server 3.1.0 on Kubernetes](https://forums.percona.com/t/metrics-retention-not-working-as-expected-in-pmm-server-3-1-0-on-kubernetes/38282)
**Author:** [@Arul\_Deepan\_Anbumani](https://forums.percona.com/u/Arul_Deepan_Anbumani)\ **Replies:** 1\ **Last updated:** [January 23, 2026, 1:43am UTC](https://forums.percona.com/t/metrics-retention-not-working-as-expected-in-pmm-server-3-1-0-on-kubernetes/38282 "2026-01-23T01:43:09Z")
We’re running PMM Server v3.1.0 deployed in Kubernetes using the official Helm chart. As part of our configuration, we’ve explicitly set the following in our Helm values to retain metrics for 90 days pmmEnv: DATA\_RETE… --- ## [PMM3 Postgresql custom queries](https://forums.percona.com/t/pmm3-postgresql-custom-queries/40065)
**Author:** [@makuartur](https://forums.percona.com/u/makuartur)\ **Replies:** 6\ **Last updated:** [January 20, 2026, 5:00pm UTC](https://forums.percona.com/t/pmm3-postgresql-custom-queries/40065 "2026-01-20T17:00:32Z")
Description: I am trying to configure the execution of a PostgreSQL query using pmm-agent (via its built-in postgresql\_exporter). The problem is that database auto-discovery is enabled and works as expected, but my query… --- ## [Percona MySQL 5.7 Configuration Review for Slave (Debian 11)](https://forums.percona.com/t/percona-mysql-5-7-configuration-review-for-slave-debian-11/39976)
**Author:** [@aycelen](https://forums.percona.com/u/aycelen)\ **Replies:** 8\ **Last updated:** [January 7, 2026, 11:31am UTC](https://forums.percona.com/t/percona-mysql-5-7-configuration-review-for-slave-debian-11/39976 "2026-01-07T11:31:42Z")
Hello, I would like to get feedback on my Percona MySQL 5.7 (mysqld) configuration and check whether it is properly tuned for my system. Environment MySQL: Percona MySQL 5.7 OS: Debian 11 (Bullseye) Hardware R… --- ## [Getting Started with Contributing to PMM as a beginner](https://forums.percona.com/t/getting-started-with-contributing-to-pmm-as-a-beginner/39934)
**Author:** [@Balaji\_Jothi](https://forums.percona.com/u/Balaji_Jothi)\ **Replies:** 1\ **Last updated:** [December 24, 2025, 6:40am UTC](https://forums.percona.com/t/getting-started-with-contributing-to-pmm-as-a-beginner/39934 "2025-12-24T06:40:37Z")
Hi, I’m Balaji, a pre final year student interested in contributing to open source. I m particularly interested in databases and backend systems mainly using Go and Python. When I look at the issues page, many of the is… --- ## [How to monitor mongodb using pmm running on external host](https://forums.percona.com/t/how-to-monitor-mongodb-using-pmm-running-on-external-host/39903)
**Author:** [@jjpark](https://forums.percona.com/u/jjpark)\ **Replies:** 1\ **Last updated:** [December 18, 2025, 3:33pm UTC](https://forums.percona.com/t/how-to-monitor-mongodb-using-pmm-running-on-external-host/39903 "2025-12-18T15:33:15Z")
Description: Hi. i have a situation. i am running mongodb using psmdb on kubernetes and my pmm is running on other single linux machine hosting from hetzner when let mongodb pmm enabled, it can make service token on … --- ## [How to monitor AWS RDS spreaded across 100+ accounts using PMM](https://forums.percona.com/t/how-to-monitor-aws-rds-spreaded-across-100-accounts-using-pmm/39782)
**Author:** [@Sarma\_Chavali](https://forums.percona.com/u/Sarma_Chavali)\ **Replies:** 3\ **Last updated:** [November 25, 2025, 1:41pm UTC](https://forums.percona.com/t/how-to-monitor-aws-rds-spreaded-across-100-accounts-using-pmm/39782 "2025-11-25T13:41:43Z")
Hi all, I have a typical scenario, We have speeded RDS Aurora instances across multiple AWS accounts; Is there a easy way to monitor using single IAM role attached to PMM EC2 machine; We are using PMM3.x version. Any … --- ## [Rootless podman based pmm server ver 3.4.1 remains unhealthy](https://forums.percona.com/t/rootless-podman-based-pmm-server-ver-3-4-1-remains-unhealthy/39704)
**Author:** [@amod\_kakade](https://forums.percona.com/u/amod_kakade)\ **Replies:** 14\ **Last updated:** [November 13, 2025, 4:59am UTC](https://forums.percona.com/t/rootless-podman-based-pmm-server-ver-3-4-1-remains-unhealthy/39704 "2025-11-13T04:59:01Z")
Hi WHen I try to startup PMM server container ver 3.4.1 on OL9 the container status remains unhealthy. There are no further errors. The container startup is success. pmm-admin status also is clean. Appreciate help podm… --- ## [Info about how PMM evaluate the metrics for a given filesystem](https://forums.percona.com/t/info-about-how-pmm-evaluate-the-metrics-for-a-given-filesystem/39709)
**Author:** [@Frak](https://forums.percona.com/u/Frak)\ **Replies:** 2\ **Last updated:** [November 11, 2025, 9:05am UTC](https://forums.percona.com/t/info-about-how-pmm-evaluate-the-metrics-for-a-given-filesystem/39709 "2025-11-11T09:05:56Z")
Description: Metrics usage for a given filesystem. Hi all, on the pmm dashboard for a given mountpoint i see the values for Free,Used and Usage% If i extract the metrics about the same filesystem with curl using: node… --- ## [Are pmm-agents v3 compatible with pmm-server v2 (2.44.0)?](https://forums.percona.com/t/are-pmm-agents-v3-compatible-with-pmm-server-v2-2-44-0/39705)
**Author:** [@ddkozyreva](https://forums.percona.com/u/ddkozyreva)\ **Replies:** 1\ **Last updated:** [November 10, 2025, 6:58pm UTC](https://forums.percona.com/t/are-pmm-agents-v3-compatible-with-pmm-server-v2-2-44-0/39705 "2025-11-10T18:58:02Z")
Hello! I’d like to know if pmm-agents v3 are compatible with pmm-server v2. I couldn’t find anything about this in the documentation. Could you provide some information? Thank you. --- ## [PMM Server 3.2.0 on Kubernetes: Auto-Logout/Unauthorized Error with Multiple Replicas](https://forums.percona.com/t/pmm-server-3-2-0-on-kubernetes-auto-logout-unauthorized-error-with-multiple-replicas/39677)
**Author:** [@pravata\_dash](https://forums.percona.com/u/pravata_dash)\ **Replies:** 4\ **Last updated:** [November 4, 2025, 6:24pm UTC](https://forums.percona.com/t/pmm-server-3-2-0-on-kubernetes-auto-logout-unauthorized-error-with-multiple-replicas/39677 "2025-11-04T18:24:56Z")
Hello Percona Community, I am setting up a PMM Server (version 3.2.0) deployment in my local Kubernetes environment (running on macOS) using the official Percona Helm chart. The Setup PMM Version: 3.2.0 (using officia… --- ## [Invalid username or password](https://forums.percona.com/t/invalid-username-or-password/39656)
**Author:** [@khaled1](https://forums.percona.com/u/khaled1)\ **Replies:** 3\ **Last updated:** [October 30, 2025, 11:47am UTC](https://forums.percona.com/t/invalid-username-or-password/39656 "2025-10-30T11:47:35Z")
I Installed Percona PMM 3 on Debian 13 from below script and the setup was completed successfully but after the setup I cannot login with error invalid username or password then I see that Debian 13 is not fully support… --- ## [Reduce just ClickHouse retention](https://forums.percona.com/t/reduce-just-clickhouse-retention/39604)
**Author:** [@Juan\_Ferrer\_Toribio](https://forums.percona.com/u/Juan_Ferrer_Toribio)\ **Replies:** 1\ **Last updated:** [October 28, 2025, 9:55pm UTC](https://forums.percona.com/t/reduce-just-clickhouse-retention/39604 "2025-10-28T21:55:41Z")
Description: When running PMM with Docker, it’s possible to modify retention with the DATA\_RETENTION environment variable, but this seems to affect VictoriaMetrics ¿and ClickHouse?. In my case, ClickHouse is using the mo… --- ## [How to add Topology in PMM for MySQL servers](https://forums.percona.com/t/how-to-add-topology-in-pmm-for-mysql-servers/23424)
**Author:** [@tee952](https://forums.percona.com/u/tee952)\ **Replies:** 14\ **Last updated:** [October 16, 2025, 9:27pm UTC](https://forums.percona.com/t/how-to-add-topology-in-pmm-for-mysql-servers/23424 "2025-10-16T21:27:17Z")
Hi All, Do anyone know if we can add topology in PMM for MySQL/MariaDB servers, if so can you let me know how it can be done. Example: If we have Primary-Secondary setup, then I need to see a Pictorial form which serve… [Next page](https://forums.percona.com/tag/pmm/6.md?match_all_tags=true&page=1&tags%5B%5D=pmm)