# General Questions **URL:** https://forums.percona.com/c/general-questions/6.md?page=2 [Latest](https://forums.percona.com/latest.md) · [Categories](https://forums.percona.com/categories.md) · [Tags](https://forums.percona.com/tags.md) **Page:** 3 --- ## [Debian Bullseye packages build APT repository](https://forums.percona.com/t/debian-bullseye-packages-build-apt-repository/12338)
**Author:** [@kcireme](https://forums.percona.com/u/kcireme)\ **Replies:** 3\ **Last updated:** [September 29, 2021, 8:09am UTC](https://forums.percona.com/t/debian-bullseye-packages-build-apt-repository/12338 "2021-09-29T08:09:53Z")
Hello y’all, I did not find any other thread giving me some hint, so I opened a new one. I just installed a fresh Debian 11 Bullseye and noticed the Percona suite are not available : http://repo.percona.com/ps-80/apt/… --- ## [Help, I am burning trough my NVME SSDs, 60GB MySQL databases (web crawler)](https://forums.percona.com/t/help-i-am-burning-trough-my-nvme-ssds-60gb-mysql-databases-web-crawler/12035)
**Author:** [@adrianTNT](https://forums.percona.com/u/adrianTNT)\ **Replies:** 9\ **Last updated:** [September 7, 2021, 9:20pm UTC](https://forums.percona.com/t/help-i-am-burning-trough-my-nvme-ssds-60gb-mysql-databases-web-crawler/12035 "2021-09-07T21:20:50Z")
I made a web crawler that is split on 3 computers, each of them makes many db queries, I think around 200 queries per second (each server) non-stop (I might be wrong, I had to stop it for now). I am using Centos 7.9 an… --- ## [Synchronization between two clusters with percona 5.7 and 8.0](https://forums.percona.com/t/synchronization-between-two-clusters-with-percona-5-7-and-8-0/11680)
**Author:** [@Silas\_Smith](https://forums.percona.com/u/Silas_Smith)\ **Replies:** 3\ **Last updated:** [September 1, 2021, 1:15pm UTC](https://forums.percona.com/t/synchronization-between-two-clusters-with-percona-5-7-and-8-0/11680 "2021-09-01T13:15:29Z")
Hi all, actually we are using percona-ctradb-cluster 5.7 with 5 nodes on Ubuntu 18.04 LTS. Now we want to use Percona-xtradb-cluster 8.0. I got the idea to set up a new cluster with 5 nodes and Ubuntu 20.04 and relate… --- ## [Conflict Avoidance with auto\_increment\_increment and auto\_increment\_offset](https://forums.percona.com/t/conflict-avoidance-with-auto-increment-increment-and-auto-increment-offset/11965)
**Author:** [@Charan](https://forums.percona.com/u/Charan)\ **Replies:** 1\ **Last updated:** [August 30, 2021, 12:58pm UTC](https://forums.percona.com/t/conflict-avoidance-with-auto-increment-increment-and-auto-increment-offset/11965 "2021-08-30T12:58:55Z")
Many blogs are saying we need to set that variables in Master-Master replication. and Percona blog seen set slave\_exec\_mode=IDEMPOTENT. If we set it will ignore the Duplicate key error. if we set slave\_skip\_errors=error… --- ## [Security -RedHat vs Percona Mongodb](https://forums.percona.com/t/security-redhat-vs-percona-mongodb/11666)
**Author:** [@pnguyen](https://forums.percona.com/u/pnguyen)\ **Replies:** 1\ **Last updated:** [August 12, 2021, 10:17am UTC](https://forums.percona.com/t/security-redhat-vs-percona-mongodb/11666 "2021-08-12T10:17:52Z")
My SA team installed RPM package (Perconas MongoDB) on Red Hat 7, it came out with sets the permission and owner on the mongod.conf file as follows (644): rw-r–r-- root root /etc/mongod.conf I ask SA to change as belo… --- ## [MS SQL Database Performance experts recommendation](https://forums.percona.com/t/ms-sql-database-performance-experts-recommendation/10938)
**Author:** [@BenSouth](https://forums.percona.com/u/BenSouth)\ **Replies:** 2\ **Last updated:** [August 9, 2021, 12:18pm UTC](https://forums.percona.com/t/ms-sql-database-performance-experts-recommendation/10938 "2021-08-09T12:18:14Z")
Hi Percona Community, I’ve been using the percona blog as well as the “High Performance MySQL” book for over a decade now. A client is currently experiencing slow MS SQL Server performance and I wanted to ask if someon… --- ## [MySQL Backend Reporting Error – Display Labels Module](https://forums.percona.com/t/mysql-backend-reporting-error-display-labels-module/11660)
**Author:** [@Vijay\_Kumar](https://forums.percona.com/u/Vijay_Kumar)\ **Replies:** 4\ **Last updated:** [August 9, 2021, 12:10pm UTC](https://forums.percona.com/t/mysql-backend-reporting-error-display-labels-module/11660 "2021-08-09T12:10:28Z")
Hi, Currently I am Using the Database Backup Plugin from the Windows server. Please advise, where are the dropdown list Display Labels stored in MySQL—they are not in the table for the module I created containing the dr… --- ## [DBSeeder Version 3.0.1](https://forums.percona.com/t/dbseeder-version-3-0-1/11639)
**Author:** [@kxn](https://forums.percona.com/u/kxn)\ **Replies:** 0\ **Last updated:** [August 3, 2021, 3:21pm UTC](https://forums.percona.com/t/dbseeder-version-3-0-1/11639 "2021-08-03T15:21:56Z")
We are pleased to release version 3.0.1 of DBSeeder. The most important enhancement is the possibility to deactivate the constraints of the type FOREIGN, PRIMARY and UNIQUE KEY before the DML statements and to activate t… --- ## [Xtrabackup feature inquiry](https://forums.percona.com/t/xtrabackup-feature-inquiry/11602)
**Author:** [@Rudrojit](https://forums.percona.com/u/Rudrojit)\ **Replies:** 3\ **Last updated:** [July 31, 2021, 12:09pm UTC](https://forums.percona.com/t/xtrabackup-feature-inquiry/11602 "2021-07-31T12:09:09Z")
Does percona-xtrabackup has any feature to estimate backup time and size for large MySQL instance? Also how to perform backup validity after taking MySQL backup with xtrabackup? MySQL server 8.0.22 Percona Xtrabackup 8… --- ## [Xbstream extremely slow](https://forums.percona.com/t/xbstream-extremely-slow/11549)
**Author:** [@Rudrojit](https://forums.percona.com/u/Rudrojit)\ **Replies:** 6\ **Last updated:** [July 29, 2021, 12:13pm UTC](https://forums.percona.com/t/xbstream-extremely-slow/11549 "2021-07-29T12:13:47Z")
I tried --stream=xbstream | gzip - \> /backup.xbstream.gz after unzipping when I tried to extract the files using using xbstream -x backup.xbstream it is taking way longer than usual. Is this a default behavior? are ther… --- ## [Related to truncate key](https://forums.percona.com/t/related-to-truncate-key/11497)
**Author:** [@bhuvanwin365](https://forums.percona.com/u/bhuvanwin365)\ **Replies:** 1\ **Last updated:** [July 25, 2021, 5:36pm UTC](https://forums.percona.com/t/related-to-truncate-key/11497 "2021-07-25T17:36:35Z")
How can i use this key to remove selected data from database. --- ## [Percona Repo Mirroring](https://forums.percona.com/t/percona-repo-mirroring/11116)
**Author:** [@crazymind1337](https://forums.percona.com/u/crazymind1337)\ **Replies:** 6\ **Last updated:** [July 23, 2021, 3:15am UTC](https://forums.percona.com/t/percona-repo-mirroring/11116 "2021-07-23T03:15:10Z")
Hallo there, we are mirroring the repositories at the following locations on a daily base via apt-mirror: https://repo.percona.com/{ps-80/apt,tools/apt,apt}/ Since quite a while we have the issue, that the mirrored r… --- ## [DBSeeder Version 2.9.0](https://forums.percona.com/t/dbseeder-version-2-9-0/10732)
**Author:** [@kxn](https://forums.percona.com/u/kxn)\ **Replies:** 0\ **Last updated:** [June 5, 2021, 3:52pm UTC](https://forums.percona.com/t/dbseeder-version-2-9-0/10732 "2021-06-05T15:52:02Z")
We are happy to announce that version 2.9.0 of DBSeeder (https://github.com/KonnexionsGmbH/db\_seeder) is now available for general use. DBSeeder also supports the latest version of Percona Server for MySQL available on D… --- ## [Is it possible to NDB cluster to MariaDB / MySQL Replication?](https://forums.percona.com/t/is-it-possible-to-ndb-cluster-to-mariadb-mysql-replication/10682)
**Author:** [@vasu1](https://forums.percona.com/u/vasu1)\ **Replies:** 6\ **Last updated:** [June 4, 2021, 2:30am UTC](https://forums.percona.com/t/is-it-possible-to-ndb-cluster-to-mariadb-mysql-replication/10682 "2021-06-04T02:30:46Z")
Hello Team, Is it possible to NDB cluster to MariaDB / MySQL Replication ? --- ## [Percona-release: Where is an explanation of all the product abbreviations?](https://forums.percona.com/t/percona-release-where-is-an-explanation-of-all-the-product-abbreviations/10508)
**Author:** [@bitone](https://forums.percona.com/u/bitone)\ **Replies:** 2\ **Last updated:** [May 19, 2021, 6:57am UTC](https://forums.percona.com/t/percona-release-where-is-an-explanation-of-all-the-product-abbreviations/10508 "2021-05-19T06:57:17Z")
ps56 ps57 ps80 psmdb34 psmdb36 psmdb40 psmdb42 psmdb44 pxb24 pxb80 pxc56 pxc57 pxc80 ppg11 ppg11.5 ppg11.6 ppg11.7 ppg11.8 ppg11.9 ppg11.10 ppg11.11 ppg12 ppg12.2 ppg12.3 ppg12.4 ppg12.5 ppg12.6 ppg13 ppg13.0 ppg13.1 p… --- ## [\[feedback\] please make repo.percona.com available also via ipv6](https://forums.percona.com/t/feedback-please-make-repo-percona-com-available-also-via-ipv6/10469)
**Author:** [@Francesco\_Montanari](https://forums.percona.com/u/Francesco_Montanari)\ **Replies:** 0\ **Last updated:** [May 15, 2021, 6:59am UTC](https://forums.percona.com/t/feedback-please-make-repo-percona-com-available-also-via-ipv6/10469 "2021-05-15T06:59:56Z")
Sometimes you may detach a server from its ipv4 and you have ipv6 only connectivity. (for example I had to downgrade MySQL version, so I switched the ipv4 to a backup instance to move the traffic away) In that case you … --- ## [Why no 'mysql.session' user in percona:5.7.31 image](https://forums.percona.com/t/why-no-mysql-session-user-in-percona-5-7-31-image/10229)
**Author:** [@1113](https://forums.percona.com/u/1113)\ **Replies:** 2\ **Last updated:** [April 29, 2021, 8:54am UTC](https://forums.percona.com/t/why-no-mysql-session-user-in-percona-5-7-31-image/10229 "2021-04-29T08:54:35Z")
I use this image:percona:5.7.31 mysql\> select \* from mysql.user where user=‘mysql.session’ → ; Empty set (0.00 sec) but the community 5.7.31 image has ‘mysql.session’ user,why? mysql\> select user from mysql.user wh… --- ## [Benchmarking SSD with Percona Server/Innodb on Sysbech](https://forums.percona.com/t/benchmarking-ssd-with-percona-server-innodb-on-sysbech/10148)
**Author:** [@jrafati](https://forums.percona.com/u/jrafati)\ **Replies:** 0\ **Last updated:** [April 19, 2021, 5:33am UTC](https://forums.percona.com/t/benchmarking-ssd-with-percona-server-innodb-on-sysbech/10148 "2021-04-19T05:33:37Z")
Hi, want to know if I can use the oltp\_common.lua to prepare the database tables on the ssd drive. Then use oltp\_write\_only.lua to run the benchmark. --- ## [ProxySQL best practice method for 3node multimaster cluster](https://forums.percona.com/t/proxysql-best-practice-method-for-3node-multimaster-cluster/9588)
**Author:** [@Venkata](https://forums.percona.com/u/Venkata)\ **Replies:** 1\ **Last updated:** [March 10, 2021, 3:37pm UTC](https://forums.percona.com/t/proxysql-best-practice-method-for-3node-multimaster-cluster/9588 "2021-03-10T15:37:01Z")
Hi Experts, Any recommended/best practice ProxySQL configuration for 3node multi master percona xtraDB cluster? thanks in advance. thanks Venakta --- ## [USN-4716-1 MySQL vulnerabilities](https://forums.percona.com/t/usn-4716-1-mysql-vulnerabilities/9083)
**Author:** [@sayaydin](https://forums.percona.com/u/sayaydin)\ **Replies:** 4\ **Last updated:** [February 8, 2021, 8:37pm UTC](https://forums.percona.com/t/usn-4716-1-mysql-vulnerabilities/9083 "2021-02-08T20:37:56Z")
Hi, I saw an announcement about mysql vulnerabilities in the Ubuntu security announcements archive. (\[USN-4716-1\] MySQL vulnerabilities) Do we have to do the recommended upgrade in the percona? Is such a vulnerabilit… --- ## [What does "declarative rules" mean?](https://forums.percona.com/t/what-does-declarative-rules-mean/8831)
**Author:** [@achimbab](https://forums.percona.com/u/achimbab)\ **Replies:** 2\ **Last updated:** [January 18, 2021, 11:14pm UTC](https://forums.percona.com/t/what-does-declarative-rules-mean/8831 "2021-01-18T23:14:47Z")
Hi all~ What does “declarative rules” mean? This word used in “The Cascades Framework for Query Optimization”. The main contributions of the EXODUS work were the optimizer generator architecture based on code gener… --- ## [Proper way to stop slave instance](https://forums.percona.com/t/proper-way-to-stop-slave-instance/8838)
**Author:** [@rokj](https://forums.percona.com/u/rokj)\ **Replies:** 1\ **Last updated:** [January 18, 2021, 6:52pm UTC](https://forums.percona.com/t/proper-way-to-stop-slave-instance/8838 "2021-01-18T18:52:30Z")
Hi, is there a “proper” way of stopping slave instance (for example if there is a need for maintenance, reboot, …)? Or is killing the right pid enough? Kind regards, Rok --- ## [Queries will not be killed (MySQL 5.5)](https://forums.percona.com/t/queries-will-not-be-killed-mysql-5-5/5748)
**Author:** [@felzend](https://forums.percona.com/u/felzend)\ **Replies:** 0\ **Last updated:** [July 19, 2017, 7:47am UTC](https://forums.percona.com/t/queries-will-not-be-killed-mysql-5-5/5748 "2017-07-19T07:47:57Z")
Hello, I’m using Percona Toolkit (pt-kill) v3.0.3 and my slow queries won’t be killed anyway. The command I run is shown below: $ pt-kill --busy-time 30 --interval 3 --kill-query --match-command=‘Query’ --victims all -… --- ## [Percona Performance Problems, becames normal after Percona Restart](https://forums.percona.com/t/percona-performance-problems-becames-normal-after-percona-restart/5016)
**Author:** [@tiberioborges](https://forums.percona.com/u/tiberioborges)\ **Replies:** 1\ **Last updated:** [August 3, 2016, 11:21am UTC](https://forums.percona.com/t/percona-performance-problems-becames-normal-after-percona-restart/5016 "2016-08-03T11:21:48Z")
Hello guys. My name is Tiberio, i’m from Brazil. (Sorry about English mistakes) I’m trying to solve a performance problem a few weeks and I’ve read many posts and did a lot of research. Already I went over all my applic… --- ## [PMM2.12 show no data in dashboard after add mysql](https://forums.percona.com/t/pmm2-12-show-no-data-in-dashboard-after-add-mysql/8419)
**Author:** [@Clark12138](https://forums.percona.com/u/Clark12138)\ **Replies:** 2\ **Last updated:** [December 21, 2020, 4:26am UTC](https://forums.percona.com/t/pmm2-12-show-no-data-in-dashboard-after-add-mysql/8419 "2020-12-21T04:26:15Z")
This is what I have done: server: docker create --volume /srv --name pmm-data percona/pmm-server:2 /bin/true docker run --detach --restart always --publish 80:80 --publish 443:443 --volumes-from pmm-data -v /etc/timez… --- ## [Is there any heat/openstack command to convert HOT template to openstack commands](https://forums.percona.com/t/is-there-any-heat-openstack-command-to-convert-hot-template-to-openstack-commands/8387)
**Author:** [@pramod](https://forums.percona.com/u/pramod)\ **Replies:** 1\ **Last updated:** [December 16, 2020, 2:55am UTC](https://forums.percona.com/t/is-there-any-heat-openstack-command-to-convert-hot-template-to-openstack-commands/8387 "2020-12-16T02:55:33Z")
Is there any heat/openstack command to convert HOT template to openstack commands i have some Yaml HOT template , i want to convert it into openstack commands for each resources in the file , is there some tool or heat/… --- ## [Restoring database in standalone in server](https://forums.percona.com/t/restoring-database-in-standalone-in-server/5980)
**Author:** [@percona\_binu](https://forums.percona.com/u/percona_binu)\ **Replies:** 2\ **Last updated:** [December 15, 2020, 1:54pm UTC](https://forums.percona.com/t/restoring-database-in-standalone-in-server/5980 "2020-12-15T13:54:54Z")
Hi, I am trying to restore the database in standalone server for percona backup but I am getting Innodb is corrupted error. I havecopied all the logs and configurationto the the standalone server but I am still getting … --- ## [gcomm.thread\_prio usage](https://forums.percona.com/t/gcomm-thread-prio-usage/8377)
**Author:** [@Laboltus](https://forums.percona.com/u/Laboltus)\ **Replies:** 1\ **Last updated:** [December 14, 2020, 4:15am UTC](https://forums.percona.com/t/gcomm-thread-prio-usage/8377 "2020-12-14T04:15:51Z")
Hello. I’m trying to rise priority for gcomm thread but the server can start only with default value “gcomm.thread\_prio=other:0”. I get error “Invalid argument” if I try to change priority for the “other” scheduler or “… --- ## [I have a question about a blog](https://forums.percona.com/t/i-have-a-question-about-a-blog/8380)
**Author:** [@ranesushil](https://forums.percona.com/u/ranesushil)\ **Replies:** 3\ **Last updated:** [December 11, 2020, 8:47am UTC](https://forums.percona.com/t/i-have-a-question-about-a-blog/8380 "2020-12-11T08:47:22Z")
regarding blog Chasing a Hung MySQL Transaction: InnoDB History Length Strikes Back - Percona Database Performance Blog I. changed the transaction level isolation to READ COMMITED instead of repeatable read to reduce i… --- ## [Adobe Analytics API](https://forums.percona.com/t/adobe-analytics-api/8361)
**Author:** [@pramod](https://forums.percona.com/u/pramod)\ **Replies:** 1\ **Last updated:** [December 9, 2020, 6:57am UTC](https://forums.percona.com/t/adobe-analytics-api/8361 "2020-12-09T06:57:36Z")
I am trying to pull segments used in different scheduled reports from Adobe Analytics. Is there any endpoint available in Adobe Analytics API which can provide me required information. [Previous page](https://forums.percona.com/c/general-questions/6.md?page=1) [Next page](https://forums.percona.com/c/general-questions/6.md?page=3)