- discuss - lists.mariadb.org

[Maria-discuss] New Question: MariaDB sorting issue
by AskMonty KB 17 Nov '14

17 Nov '14

Hello, A new question has been asked in "MariaDB FAQ" by sagarlotiya. Please answer it at http://mariadb.com/kb/en/mariadb-sorting-issue/ as the person asking the question may not be subscribed to the mailing list. -------------------------------- Hi, I have one table with 4 million rows and other table with 1 million rows. When I perform join on both the table and perform the sort on the column which is not main table it is behaving really slow. I have tested with 8 GB RAM. Whole database fits in memory. I have also checked with EXPLAIN it is not creating temporary table on disk. How can I get best performance? e.g query. SELECT DISTINCT u0_.id AS id_0, a1_.created_at AS created_at_1 FROM user u0_ LEFT JOIN advertise a1_ ON (a1_.user_id = u0_.id) ORDER BY a1_.created_at DESC LIMIT 10; Also note that all the indexes are properly created so that is not he issue here. -------------------------------- To view or answer this question please visit: http://mariadb.com/kb/en/mariadb-sorting-issue/

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[Maria-discuss] pid file could not be found
by Roth, Sandro 14 Nov '14

14 Nov '14

Hi there I'm having a weird problem after a fresh installation of RHEL6 and MariaDB: [root@server ~]# yum install MariaDB-10.1.1-centos6-x86_64-server.rpm MariaDB-10.1.1-centos6-x86_64-client.rpm MariaDB-10.1.1-centos6-x86_64-compat.rpm MariaDB-10.1.1-centos6-x86_64-common.rpm [...] [root@server ~]# /etc/init.d/mysql status MySQL is not running [FAILED] [root@server ~]# /etc/init.d/mysql start Starting MySQL. [ OK ] [root@server ~]# /etc/init.d/mysql status MySQL is running but PID file could not be found [FAILED] [root@spch9140 ~]# ls -al /var/lib/mysql/server.local-recover.pid -rw-rw---- 1 mysql mysql 6 Nov 14 07:41 /var/lib/mysql/server.local-recover.pid [root@server ~]# more /var/lib/mysql/server.local-recover.pid 25071 [root@server ~]# ps aux | grep 25071 mysql 25071 0.0 2.9 795548 116980 pts/0 Sl 07:41 0:02 /usr/sbin/mysqld --basedir=/usr --datadir=/var/lib/mysql --plugin-dir=/usr/lib64/mysql/plugin --user=mysql --log-error=/var/lib/mysql/server.local.err --pid-file=/var/lib/mysql/server.local.pid --wsrep_recover --log_error=/var/lib/mysql/wsrep_recovery.U7vwNv --pid-file=/var/lib/mysql/server.local-recover.pid root 27665 0.0 0.0 103256 856 pts/0 S+ 08:30 0:00 grep 25071 Also tried version 10.0.14, same issue.. Putting 'pid-file' option into /etc/my.cnf.d/server.cnf doesn't help either :( Anyone seen this too or have a suggestion? Thanks Sandro This email message and any attachments are confidential and may be privileged. If you are not the intended recipient, please notify us immediately and destroy the original transmittal. You are hereby notified that any review, copying or distribution of it is strictly prohibited. Thank you for your cooperation. Header information contained in E-mails to and from the company are monitored for operational reasons in accordance with swiss data protection act.

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[Maria-discuss] 10.1 + Galera
by Tim Callaghan 13 Nov '14

13 Nov '14

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[Maria-discuss] debuginfo packages for MariaDB Galera Cluster 5.5
by Pim Rupert (Lemonbit) 12 Nov '14

12 Nov '14

Where could one find the debuginfo packages for MariaDB Galera Cluster 5.5? I could not find it in the yum channels. - Pim

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[Maria-discuss] New Question: MariaDB configuration file license?
by AskMonty KB 11 Nov '14

11 Nov '14

Hello, A new question has been asked in "MariaDB FAQ" by aled_sage_g. Please answer it at http://mariadb.com/kb/en/mariadb-configuration-file-license/ as the person asking the question may not be subscribed to the mailing list. -------------------------------- Hi, Are the default MariaDB configuration files licensed under GPL, or is there a more permissive license for it? The context of my question... I am a committer on the apache Brooklyn project [1]. This automates the deployment and runtime management of applications to a range of different clouds. MariaDB can be one of a range of components being deployed and wired together. We have copied the my.cnf configuration file, and templated it so that automated deployment of custom configurations are simpler. However, Apache does not allow inclusion of GPL/LGPL material [2]. We may have to write our own version of the configuration file from scratch, or delete our templated version and resort to `sed` commands to modify the default (yuck!). Aled [1] https://brooklyn.incubator.apache.org/ [2] http://www.apache.org/legal/3party.html -------------------------------- To view or answer this question please visit: http://mariadb.com/kb/en/mariadb-configuration-file-license/

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[Maria-discuss] New Question: problem of installing and downloading MariaDB
by AskMonty KB 11 Nov '14

11 Nov '14

Hello, A new question has been asked in "MariaDB community" by wenfangzhang: -------------------------------- hello: i have downloaded mariadb-10.0.14-linux-x86_64.tar.gz , but when i decompress this package , it has errors: this packeage is interrupted . i have triede several times, but it still has this problem. and last , i download the source code of this veision mariadb-10.0.14.tar.gz. After installing this , i try to install tokudb engine by using install soname 'ha_tokudb' , but it also has problems :ERROR 1126 (HY000): Can't open shared library '/usr/local/mariadb/lib/plugin/ha_tokudb.so' (errno: 13, cannot open shared object file: No such file or directory). In fact , i want to install the newest version of MariaDB with tokuDB engine . so what can i do ? -------------------------------- To view or answer this question please visit: http://mariadb.com/kb/en/problem-of-installing-and-downloading-mariadb/

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[Maria-discuss] New Question: MariaDB installation
by AskMonty KB 11 Nov '14

11 Nov '14

Hello, A new question has been asked in "Getting Started" by jorgearaya: -------------------------------- How can I install MariaDB on Suse Linux? SUSE Linux Enterprise Server 11 (x86_64) VERSION = 11 PATCHLEVEL = 1 Thanks -------------------------------- To view or answer this question please visit: http://mariadb.com/kb/en/mariadb-installation/

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[Maria-discuss] New Question: newbie question
by AskMonty KB 07 Nov '14

07 Nov '14

Hello, A new question has been asked in "MariaDB community" by lennartjohansson: -------------------------------- Hi all, I'm a newie to Mariadb but do have a question if a thing we need to do in a project is possible to do at all. We are working with a id-project where Sybase is feeding data into a ldap directory, now we need do to a upgrade witch means that the connector to sybase are lost. To get that to work again we need to have new views build in Sybase and since we dont own the Sybase database that is crazy expenciv. So we thought about using MariaDB as a middleware and store data from Sybase in it and use that instead as data source for our directory. So my question is if it's possible in MariaDB to run a query that reads data from a Sybase DB and store the result? And if so does anybody have any suggestions about best practice how to do that. /Lenanrt -------------------------------- To view or answer this question please visit: http://mariadb.com/kb/en/newbie-question/

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[Maria-discuss] Maybe a new information schema table for replication?
by Roberto Spadim 06 Nov '14

06 Nov '14

Hi guys, i got one question these days and i don't know how to solve... the question is: "How to see the queries executing by replication thread?" i'm thinking about a information schema plugin to see whats is 'queued' in replication thread, at "master" (write to binlog) and "slave" (executing from binlog) side any idea if this is possible? i didn't checked or read any part of binlog/replication code yet thanks guys! :) -- Roberto Spadim SPAEmpresarial Eng. Automação e Controle

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[Maria-discuss] question regarding innodb compression
by Rohan M C 03 Nov '14

03 Nov '14

Hi all, Due to space constraints we are considering the innodb compression option for some of our larger tables. We're not compressing all the tables, but only a select few to begin with. Our current planned process for this is to SET GLOBAL innodb_file_format=Barracuda; create compressed table, transfer data, and switch innodb_file_format back to Antelope. My question is around having this mix of table file formats in the same database. I've tried test queries and they were fine, but is it ok to have a mix of both Antelope and Barracuda file format tables in the db for a production environment? Thanks, Rohan

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