# \#percona **URL:** https://forums.percona.com/tag/percona/10.md [Latest](https://forums.percona.com/latest.md) · [Categories](https://forums.percona.com/categories.md) · [Tags](https://forums.percona.com/tags.md) --- ## [PXC cluster node crashed and cannot recover](https://forums.percona.com/t/pxc-cluster-node-crashed-and-cannot-recover/39153)
**Author:** [@Gerwin\_van\_de\_Steeg](https://forums.percona.com/u/Gerwin_van_de_Steeg)\ **Replies:** 10\ **Last updated:** [October 21, 2026, 4:37am UTC](https://forums.percona.com/t/pxc-cluster-node-crashed-and-cannot-recover/39153 "2026-10-21T04:37:17Z")
Description: This happens frequently enough that it gets really annoying, out of the two database instances running they frequently enough crash with no easy to diagnose reason and cannot recover themselves leaving the p… --- ## [PostgreSQL Percona TDE](https://forums.percona.com/t/postgresql-percona-tde/41340)
**Author:** [@kase007](https://forums.percona.com/u/kase007)\ **Replies:** 4\ **Last updated:** [October 15, 2026, 6:05am UTC](https://forums.percona.com/t/postgresql-percona-tde/41340 "2026-10-15T06:05:57Z")
Hello all, I have a question regarding TDE funcionality. Currently, I have a running cluster with TDE connected to hashicorp Vault. In case the vault became unreachable and PostgreSQL shutdown it wont startup. There is… --- ## [Leveraging MongoDB's native oplog applier for faster PBM PITR restores](https://forums.percona.com/t/leveraging-mongodbs-native-oplog-applier-for-faster-pbm-pitr-restores/41318)
**Author:** [@Daniel\_Osuntoyinbo](https://forums.percona.com/u/Daniel_Osuntoyinbo)\ **Replies:** 1\ **Last updated:** [October 8, 2026, 10:49am UTC](https://forums.percona.com/t/leveraging-mongodbs-native-oplog-applier-for-faster-pbm-pitr-restores/41318 "2026-10-08T10:49:11Z")
Hi all, While testing replicaset PITR restores of multi-terrabyte mongodb clusters using PBM, I observed that PBM replays the oplog serially. PITR restore for a 4 hour window of oplog size of about 46GB took 2+ days to … --- ## [Percona backup getting timeout for Mongodb](https://forums.percona.com/t/percona-backup-getting-timeout-for-mongodb/41130)
**Author:** [@Anikessh](https://forums.percona.com/u/Anikessh)\ **Replies:** 7\ **Last updated:** [October 5, 2026, 10:36am UTC](https://forums.percona.com/t/percona-backup-getting-timeout-for-mongodb/41130 "2026-10-05T10:36:35Z")
Hi We are using percona backup version as 2.15 and mongodb version as 8.0 and while taking backup through docker we are getting error as follows docker run --rm -v /etc/mongo/ssl/ca-chainv4.cert.pem:/ca-chainv4.cert.p… --- ## [Percona Server 5.7 - ERROR 3185 on one DRE encrypted table only; others work fine](https://forums.percona.com/t/percona-server-5-7-error-3185-on-one-dre-encrypted-table-only-others-work-fine/41255)
**Author:** [@pravata\_dash](https://forums.percona.com/u/pravata_dash)\ **Replies:** 5\ **Last updated:** [September 19, 2026, 10:42am UTC](https://forums.percona.com/t/percona-server-5-7-error-3185-on-one-dre-encrypted-table-only-others-work-fine/41255 "2026-09-19T10:42:44Z")
Problem: Without any changes at Mysql DB OR table level, one DRE(Data At Rest Encryption) table consistently fails where as other encrypted tables are accessible, SELECT COUNT(\*) FROM myschema.user\_profile; -- ERROR 31… --- ## [Question About PITR Continuity](https://forums.percona.com/t/question-about-pitr-continuity/41270)
**Author:** [@dasol](https://forums.percona.com/u/dasol)\ **Replies:** 1\ **Last updated:** [September 17, 2026, 11:14am UTC](https://forums.percona.com/t/question-about-pitr-continuity/41270 "2026-09-17T11:14:24Z")
Hello, We are currently using MongoDB 8.x and Percona Backup for MongoDB (PBM). In our production environment, we perform one full logical backup per day with PITR enabled continuously. We are planning to use these ba… --- ## [Does Percona MySQL support arbitrator‑node capability](https://forums.percona.com/t/does-percona-mysql-support-arbitrator-node-capability/41246)
**Author:** [@Leo\_Ma](https://forums.percona.com/u/Leo_Ma)\ **Replies:** 5\ **Last updated:** [September 16, 2026, 1:46pm UTC](https://forums.percona.com/t/does-percona-mysql-support-arbitrator-node-capability/41246 "2026-09-16T13:46:10Z")
I would like to check if there is any roadmap or plan for Percona Server for MySQL to support the group\_replication\_arbitrator feature for MySQL Group Replication. Currently, the upstream Oracle MySQL Group Replication … --- ## [MongoDB 8.0.23 - OIDC authentication via Keycloak](https://forums.percona.com/t/mongodb-8-0-23-oidc-authentication-via-keycloak/40963)
**Author:** [@pshah](https://forums.percona.com/u/pshah)\ **Replies:** 4\ **Last updated:** [September 8, 2026, 1:44pm UTC](https://forums.percona.com/t/mongodb-8-0-23-oidc-authentication-via-keycloak/40963 "2026-09-08T13:44:07Z")
Hi While to setup and test OIDC authentication for Percona MongoDB 8.0.23 using Keycloak - the authentication does not work. I tried using mongosh ( ubuntu host ) and also via MongoDB Compass On MongoDB Compass side … --- ## [How should GCache size be determined for PXC?](https://forums.percona.com/t/how-should-gcache-size-be-determined-for-pxc/41230)
**Author:** [@Sekhri](https://forums.percona.com/u/Sekhri)\ **Replies:** 3\ **Last updated:** [September 7, 2026, 7:46am UTC](https://forums.percona.com/t/how-should-gcache-size-be-determined-for-pxc/41230 "2026-09-07T07:46:27Z")
I am running a 3-node Percona XtraDB Cluster on Kubernetes, where the PV size is selected dynamically by the user on the dashboard (minimum 50GB). What is the recommended approach for determining gcache.size? Is there … --- ## [Guidance needed for pt-table-checksum on MySQL master-master / source-source replication](https://forums.percona.com/t/guidance-needed-for-pt-table-checksum-on-mysql-master-master-source-source-replication/41142)
**Author:** [@degokul](https://forums.percona.com/u/degokul)\ **Replies:** 5\ **Last updated:** [September 6, 2026, 2:04am UTC](https://forums.percona.com/t/guidance-needed-for-pt-table-checksum-on-mysql-master-master-source-source-replication/41142 "2026-09-06T02:04:48Z")
Hi Percona community, I’m looking for guidance on the safest operational pattern for using \`pt-table-checksum\` in a MySQL master-master / source-source replication setup. Environment summary: Database: MySQL Enterpri… --- ## [XtraDB Cluster Nodes Vertical Scaling](https://forums.percona.com/t/xtradb-cluster-nodes-vertical-scaling/41209)
**Author:** [@Sekhri](https://forums.percona.com/u/Sekhri)\ **Replies:** 2\ **Last updated:** [August 27, 2026, 6:16pm UTC](https://forums.percona.com/t/xtradb-cluster-nodes-vertical-scaling/41209 "2026-08-27T18:16:18Z")
I have a 3-node Rancher Kubernetes cluster running Percona XtraDB Cluster (PXC). Each Kubernetes worker node currently has 4 vCPU and 16 GB RAM, and I would like to vertically scale each node to 8 vCPU and 32 GB RAM. Th… --- ## [Make mongodLockTimeout (30-min shutdown-checkpoint wait in physical/external restore) configurable](https://forums.percona.com/t/make-mongodlocktimeout-30-min-shutdown-checkpoint-wait-in-physical-external-restore-configurable/41215)
**Author:** [@Daniel\_Osuntoyinbo](https://forums.percona.com/u/Daniel_Osuntoyinbo)\ **Replies:** 1\ **Last updated:** [August 27, 2026, 12:11pm UTC](https://forums.percona.com/t/make-mongodlocktimeout-30-min-shutdown-checkpoint-wait-in-physical-external-restore-configurable/41215 "2026-08-27T12:11:52Z")
Environment: PSMDB (mongod 7.0.30-16), 3-node replica set, WiredTiger with directoryForIndexes:true Nodes: r5.16xlarge, data disk gp3 16000 GiB / 40000 IOPS / 1000 MB/s RAM: 248 GB WT cache Dataset: 11 TB on-disk, on… --- ## [How to skip select or all read operation in audit\_log\_filter in percona 8.4](https://forums.percona.com/t/how-to-skip-select-or-all-read-operation-in-audit-log-filter-in-percona-8-4/37956)
**Author:** [@redssr](https://forums.percona.com/u/redssr)\ **Replies:** 5\ **Last updated:** [August 25, 2026, 3:29pm UTC](https://forums.percona.com/t/how-to-skip-select-or-all-read-operation-in-audit-log-filter-in-percona-8-4/37956 "2026-08-25T15:29:17Z")
Dear Friends, Hope you are all doing well, like as of always, i need some help from you experts. I am trying to create a filter in percona MySQL 8.4 to log only ddl and dml activities but somehow its logging all the ev… --- ## [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.… --- ## [How to migrate Secret Keys generated by component\_keyring\_vault from HashiCorp Vault to Azure Key Vault?](https://forums.percona.com/t/how-to-migrate-secret-keys-generated-by-component-keyring-vault-from-hashicorp-vault-to-azure-key-vault/41175)
**Author:** [@Sergey\_Ogurtsov](https://forums.percona.com/u/Sergey_Ogurtsov)\ **Replies:** 2\ **Last updated:** [August 18, 2026, 2:56pm UTC](https://forums.percona.com/t/how-to-migrate-secret-keys-generated-by-component-keyring-vault-from-hashicorp-vault-to-azure-key-vault/41175 "2026-08-18T14:56:10Z")
Hello colleagues, We currently use component\_keyring\_vault to manage encryption keys for Percona XtraDB Cluster with HashiCorp Vault. We are planning to migrate from HashiCorp Vault to Azure Key Vault. However, accordi… --- ## [Best practice for pt-table-checksum frequency in Oracle Unified Assurance active-active MySQL setup](https://forums.percona.com/t/best-practice-for-pt-table-checksum-frequency-in-oracle-unified-assurance-active-active-mysql-setup/41144)
**Author:** [@degokul](https://forums.percona.com/u/degokul)\ **Replies:** 1\ **Last updated:** [August 17, 2026, 3:23pm UTC](https://forums.percona.com/t/best-practice-for-pt-table-checksum-frequency-in-oracle-unified-assurance-active-active-mysql-setup/41144 "2026-08-17T15:23:59Z")
Hi Percona community, I’m looking for best-practice guidance on how often to run pt-table-checksum in our environment. We run Oracle Unified Assurance, which is a monitoring/alerting platform with frequent ongoing data… --- ## [Percona Patroni EOL Support with Ubuntu Pro for 22.04](https://forums.percona.com/t/percona-patroni-eol-support-with-ubuntu-pro-for-22-04/40892)
**Author:** [@zubin.parihar.bcgeu](https://forums.percona.com/u/zubin.parihar.bcgeu)\ **Replies:** 4\ **Last updated:** [August 17, 2026, 6:32am UTC](https://forums.percona.com/t/percona-patroni-eol-support-with-ubuntu-pro-for-22-04/40892 "2026-08-17T06:32:14Z")
Hey folks, Ubuntu 22.04 LTS has an EOL on April 2027 However, if we purchase Ubuntu Pro, that gives us 10 - 15 Years of support via Canonical. However, if we install Percona Apt Repos for Patroni+PostgreSQL 17, is the… --- ## [Open-Source Kubernetes Version Support](https://forums.percona.com/t/open-source-kubernetes-version-support/41069)
**Author:** [@Srinivas](https://forums.percona.com/u/Srinivas)\ **Replies:** 3\ **Last updated:** [July 16, 2026, 12:37pm UTC](https://forums.percona.com/t/open-source-kubernetes-version-support/41069 "2026-07-16T12:37:11Z")
Description: What is the Open-Source Kubernetes version supported for Percona Operator 2.8.2 version Steps to Reproduce: This is information request to know the supported Kubernetes version for Percona Postgres operator… --- ## [Wrong result with SUBSTRING\_INDEX(GROUP\_CONCAT(...)) when group\_concat\_max\_len is 2^28, 2^29 or 3\*2^28 in Percona Server 8.4.8-8](https://forums.percona.com/t/wrong-result-with-substring-index-group-concat-when-group-concat-max-len-is-2-28-2-29-or-3-2-28-in-percona-server-8-4-8-8/40959)
**Author:** [@thomas.liebold\_c24](https://forums.percona.com/u/thomas.liebold_c24)\ **Replies:** 1\ **Last updated:** [July 15, 2026, 1:19pm UTC](https://forums.percona.com/t/wrong-result-with-substring-index-group-concat-when-group-concat-max-len-is-2-28-2-29-or-3-2-28-in-percona-server-8-4-8-8/40959 "2026-07-15T13:19:14Z")
Project / Component Product: Percona Server for MySQL Version: 8.4.8-8 Component: SQL / Optimizer / GROUP\_CONCAT / Derived table materialization Severity: Major or Critical Type: Bug Description We observe a wrong query… --- ## [Galera/PXC Cluster Permanent Stall: Failed DDL Voting Storm + Pending TOI Deadlock](https://forums.percona.com/t/galera-pxc-cluster-permanent-stall-failed-ddl-voting-storm-pending-toi-deadlock/40709)
**Author:** [@reddy\_nishanth](https://forums.percona.com/u/reddy_nishanth)\ **Replies:** 5\ **Last updated:** [July 7, 2026, 6:07am UTC](https://forums.percona.com/t/galera-pxc-cluster-permanent-stall-failed-ddl-voting-storm-pending-toi-deadlock/40709 "2026-07-07T06:07:24Z")
Description: A burst of ~50 failed ALTER TABLE … DROP PARTITION statements (Error 1507 - “Error in list of partitions to DROP”) issued sequentially across ~50 databases by a single application thread caused all three no… --- ## [Feature Request: Extend IGNORE\_LABELS to StatefulSets and PodDisruptionBudgets to prevent Mutating Webhook race conditions](https://forums.percona.com/t/feature-request-extend-ignore-labels-to-statefulsets-and-poddisruptionbudgets-to-prevent-mutating-webhook-race-conditions/40940)
**Author:** [@Piyush\_Tiwari](https://forums.percona.com/u/Piyush_Tiwari)\ **Replies:** 1\ **Last updated:** [July 1, 2026, 10:50am UTC](https://forums.percona.com/t/feature-request-extend-ignore-labels-to-statefulsets-and-poddisruptionbudgets-to-prevent-mutating-webhook-race-conditions/40940 "2026-07-01T10:50:29Z")
Description / Use Case: In enterprise environments, it is standard practice to use Mutating Webhooks (like OPA Gatekeeper or Kyverno) to enforce mandatory organizational labels (e.g., billing codes, monitoring flags) on… --- ## [Connecting to database through HAproxy](https://forums.percona.com/t/connecting-to-database-through-haproxy/40920)
**Author:** [@MarcH](https://forums.percona.com/u/MarcH)\ **Replies:** 19\ **Last updated:** [June 24, 2026, 6:30am UTC](https://forums.percona.com/t/connecting-to-database-through-haproxy/40920 "2026-06-24T06:30:19Z")
Following a directive to configure the proxy/percona setup to correctly identify client operations by source address, I reconfigured percona backends with send-proxy. I now have: source-host - proxy-node - percona node… --- ## [Patroni replication behaves the same regardless of the value set for synchronous\_mode\_strict](https://forums.percona.com/t/patroni-replication-behaves-the-same-regardless-of-the-value-set-for-synchronous-mode-strict/40856)
**Author:** [@Srinivas](https://forums.percona.com/u/Srinivas)\ **Replies:** 1\ **Last updated:** [June 23, 2026, 5:38am UTC](https://forums.percona.com/t/patroni-replication-behaves-the-same-regardless-of-the-value-set-for-synchronous-mode-strict/40856 "2026-06-23T05:38:41Z")
Percona Operator Version: 2.8.2 Postgres Version: 16 We have defined the below parameters related to Patroni replication. It is expected that writes will continue when the parameter synchronous\_mode\_strict set to false… --- ## [XtraDB & Kubernetes compatibility matrix](https://forums.percona.com/t/xtradb-kubernetes-compatibility-matrix/13577)
**Author:** [@katajistok](https://forums.percona.com/u/katajistok)\ **Replies:** 5\ **Last updated:** [June 16, 2026, 5:50pm UTC](https://forums.percona.com/t/xtradb-kubernetes-compatibility-matrix/13577 "2026-06-16T17:50:10Z")
Hello, Is there a compatibility matrix somewhere regarding to XtraDB (MySQL) and Kubernetes versioning? --- ## [Llvmjit.so fails to load in percona-postgresql-17 container](https://forums.percona.com/t/llvmjit-so-fails-to-load-in-percona-postgresql-17-container/40690)
**Author:** [@chemp](https://forums.percona.com/u/chemp)\ **Replies:** 6\ **Last updated:** [June 8, 2026, 11:50am UTC](https://forums.percona.com/t/llvmjit-so-fails-to-load-in-percona-postgresql-17-container/40690 "2026-06-08T11:50:37Z")
Hello, I have encountered this issue while working with this image: perconalab/percona-distribution-postgresql-with-postgis:17.9. When PostgreSQL’s JIT compiler activates, loading /usr/pgsql-17/lib/llvmjit.so fails with… --- ## [Questions Regarding PBM 2.14 Backup Cleanup and PITR Behavior](https://forums.percona.com/t/questions-regarding-pbm-2-14-backup-cleanup-and-pitr-behavior/40878)
**Author:** [@dasol](https://forums.percona.com/u/dasol)\ **Replies:** 1\ **Last updated:** [June 8, 2026, 9:07am UTC](https://forums.percona.com/t/questions-regarding-pbm-2-14-backup-cleanup-and-pitr-behavior/40878 "2026-06-08T09:07:40Z")
Hello, I have a few questions regarding PBM version 2.14. We are using PBM in both MongoDB replica set (Primary-Secondary-Arbiter) and sharded cluster environments. We perform a logical backup once per day and run PITR… --- ## [Restore on a local docker deployment](https://forums.percona.com/t/restore-on-a-local-docker-deployment/40875)
**Author:** [@Adraen](https://forums.percona.com/u/Adraen)\ **Replies:** 7\ **Last updated:** [June 5, 2026, 6:46pm UTC](https://forums.percona.com/t/restore-on-a-local-docker-deployment/40875 "2026-06-05T18:46:50Z")
Hi, I’ve setup Percona Server for MongoDB on a bare metal kubernetes cluster and things are mostly working fine. I’ve enabled storage on an S3 compatible storage and use SSE-C to encrypt the backups. On the cluster i’v… --- ## [What is the recommended way to rotate vault token for mysql?](https://forums.percona.com/t/what-is-the-recommended-way-to-rotate-vault-token-for-mysql/40864)
**Author:** [@Yash\_Daga](https://forums.percona.com/u/Yash_Daga)\ **Replies:** 3\ **Last updated:** [June 4, 2026, 5:31pm UTC](https://forums.percona.com/t/what-is-the-recommended-way-to-rotate-vault-token-for-mysql/40864 "2026-06-04T17:31:24Z")
I want to rotate the vault token inside the keyring.conf file, but I was concerned that if mysql only reads the token at startup and stores it in memory, how would it know when to read a fresh token from the keyring.conf… --- ## [Installing Percona Mongo from a tarball](https://forums.percona.com/t/installing-percona-mongo-from-a-tarball/40863)
**Author:** [@Wasef](https://forums.percona.com/u/Wasef)\ **Replies:** 1\ **Last updated:** [June 2, 2026, 8:06am UTC](https://forums.percona.com/t/installing-percona-mongo-from-a-tarball/40863 "2026-06-02T08:06:12Z")
Hi, I am trying to install Percona MongoDB from the tarball on a RHEL server. I noticed the documentation doesn’t cover: how to create the mongod user/group how to set up the systemd service file Could you ple… --- ## [\[fixed\] Debconf \`percona-server-server/existing\_config\_file\` not taken into account when upgrade](https://forums.percona.com/t/fixed-debconf-percona-server-server-existing-config-file-not-taken-into-account-when-upgrade/40840)
**Author:** [@tchernomax](https://forums.percona.com/u/tchernomax)\ **Replies:** 3\ **Last updated:** [June 1, 2026, 2:46pm UTC](https://forums.percona.com/t/fixed-debconf-percona-server-server-existing-config-file-not-taken-into-account-when-upgrade/40840 "2026-06-01T14:46:48Z")
On debian /var/lib/dpkg/info/percona-server-server.postinst: case "$1" in configure) if \[ -z "$2" \]; then … else # If the existing config file is a proper… [Next page](https://forums.percona.com/tag/percona/10.md?match_all_tags=true&page=1&tags%5B%5D=percona)