Ja pouzivam replikaci primo zabudovanou v MySQL :)
http://dev.mysql.com/doc/refman/5.0/en/replication-howto.html
On Tue, 07 Aug 2012 07:52:59 +0200 Dusan Simek pixelfields@gmail.com wrote:
Ahoj, kazdy ma asi nejakou tu utilitku na zalohy mysql, ja uz leta pouzivam mysql-zrm:
https://zmanda.com/backup-mysql.html
Jinak diky za dalsi tip.
Dusan
On 08/06/2012 12:46 PM, Tomas Srnka wrote:
Ahoj,
aby si predosiel do buducna problemom s obnovou zalohy, odporucam zalohovat pomocou xtrabackup utilitky - https://prasiatko.vpsfree.cz/wiki/doku.php?id=mysql_zalohovanie#xtrabackup .
Tomas
On Mon, Aug 6, 2012 at 10:08 AM, Dusan Simek pixelfields@gmail.com wrote:
no chybu to samozrejme vyhodi a zapise do logu neco takoveho:
Trying to get some variables. Some pointers may be invalid and cause the dump to abort. Query (7f4490cf1850): insert into events (eventid,source,object,objectid,clock,value) values (71594,0,0,13699,1343957163,2) Connection ID (thread ID): 14 Status: NOT_KILLED
The manual page at http://dev.mysql.com/doc/mysql/en/crashing.html contains information that should help you find out what is causing the crash. 120805 21:38:23 mysqld_safe Number of processes running now: 0 120805 21:38:23 mysqld_safe mysqld restarted 120805 21:38:23 [Warning] '--skip-locking' is deprecated and will be removed in a future release. Please use '--skip-external-locking' instead. 120805 21:38:23 [Note] Plugin 'FEDERATED' is disabled. 120805 21:38:23 InnoDB: Initializing buffer pool, size = 192.0M 120805 21:38:23 InnoDB: Completed initialization of buffer pool InnoDB: Log scan progressed past the checkpoint lsn 46 3585383713 120805 21:38:23 InnoDB: Database was not shut down normally! InnoDB: Starting crash recovery. InnoDB: Reading tablespace information from the .ibd files... InnoDB: Restoring possible half-written data pages from the doublewrite InnoDB: buffer... InnoDB: Doing recovery: scanned up to log sequence number 46 3585383743 InnoDB: 1 transaction(s) which must be rolled back or cleaned up InnoDB: in total 397 row operations to undo InnoDB: Trx id counter is 0 302035200 InnoDB: Last MySQL binlog file position 0 532, file name ./mysql-bin.013426 InnoDB: Starting in background the rollback of uncommitted transactions InnoDB: Cleaning up trx with id 0 295634833 120805 21:38:23 InnoDB: Rollback of non-prepared transactions completed 120805 21:38:23 InnoDB: Started; log sequence number 46 3585383743 120805 21:38:23 [Note] Recovering after a crash using mysql-bin 120805 21:38:23 [Note] Starting crash recovery... 120805 21:38:23 [Note] Crash recovery finished. 120805 21:38:23 [Note] Event Scheduler: Loaded 0 events 120805 21:38:23 [Note] /usr/sbin/mysqld: ready for connections. Version: '5.1.63-0+squeeze1-log' socket: '/var/run/mysqld/mysqld.sock' port: 3306 (Debian) 120805 21:38:33 InnoDB: Assertion failure in thread 140313926240000 in file ../../../storage/innobase/btr/btr0cur.c line 178 InnoDB: Failing assertion: btr_page_get_next(get_page, mtr) == buf_frame_get_page_no(page) InnoDB: We intentionally generate a memory trap. InnoDB: Submit a detailed bug report to http://bugs.mysql.com. InnoDB: If you get repeated assertion failures or crashes, even InnoDB: immediately after the mysqld startup, there may be InnoDB: corruption in the InnoDB tablespace. Please refer to InnoDB: http://dev.mysql.com/doc/refman/5.1/en/forcing-innodb-recovery.html InnoDB: about forcing recovery.
takze info o te taulce tam je, ovsem jaky koliv popus o repair skonci crashem a restartem enginu.
Takze nakonec jsem to vyresil nasledovne: dle dokumentace tady: http://dev.mysql.com/doc/refman/5.0/en/forcing-innodb-recovery.html jsem zmenil promennou innodb_force_recovery na 3, kdy se povedlo vydumpovat databaze bez crache enginu. Pak odinstalovat mysql-server, smazat vse ve /var/lib/mysql, nainstalovat znova mysql-server, natahnout dumpy.
Slo by to asi opravit i z nejake starsi zalohy, ale takhle jsem mel alespon nejake relativne nejnovejsi data.
Diky.
Dusan
On 08/06/2012 09:08 AM, Jirka Bourek wrote:
Když ten mysqlcheck doběhne takhle, tak v logu DB nic není? Třeba popis chyby nebo info o tom, že se DB restartovala. Pokud si dobře vzpomínám, ve výpisu show table status by mohlo být nějaké info ke konkrétní tabulce, proč ji nejde obnovit. (Pokud nemáš nějak divně přenastavené lgoování, info o poškozených tabulkách by tam mělo být.)
Btw. nevím, proč se při opravě tabulky pouští optimize table, možná by bylo lepší zkontrolovat a opravit poškozené tabulky ručně (na verzi 5 se oprava normálně dělá sama, když se přistoupí k poškozené tabulce, tzn. ruční oprava bude potřeba jenom tam, kde je nějaký problém.)
Dusan Simek wrote:
Diky ... zatim jsem tedy pokrocil takto:
1/ myisam tabulky vypadaji ok, tam repair, check, optimize proslo ok 2/ inndodb tabulky konci errorem:
mysqlcheck: Got error: 2013: Lost connection to MySQL server during query when executing 'OPTIMIZE TABLE ... '
zatim to tedy vypada ze budu muset udelat neco takoveho:
http://www.mysqlperformanceblog.com/2008/07/04/recovering-innodb-table-corru...
pokud tedy nemate nikdo nejaky jiny napad.
Diky.
Dusan
On 08/05/2012 04:25 PM, Pavel Snajdr wrote:
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Prinejhorsim ti experimentalne zpristupnim zalohu a budes si moct vytahnout drivejsi snapshoty mysql dat, doufam ze aspon jeden z nich bude konzistentni.
S pozdravem
Pavel Snajdr
+421 948 816 186 | +420 720 107 791 | 110-010-956 CTO of Relbit | Predseda vpsFree.cz, o.s. | RHCE http://relbit.com | http://vpsfree.cz | https://www.redhat.com
On 08/05/2012 03:50 PM, Dusan Simek wrote: > > Nezkousel, zkusim, o ty poskozeny intergite jsem taky > premyslel. > > V priloze by mel byt my.cnf, jestli to projde. > > Dusan > > On 08/05/2012 03:45 PM, Tomas Srnka wrote: >> >> http://www.cafewebmaster.com/repair-all-mysql-databases-tables-php >> -> take nieco si skusal? Mozes mat poskodenu integritu >> niektorych tabuliek. Idealne si napis skript, co zbehne CHECK >> a REPAIR na vsetky tabulky vo vsetkych DB. >> >> On Aug 5, 2012, at 3:38 PM, Dusan Simek >> pixelfields@gmail.com wrote: >> >>> Ahoj chlapci, ten patecni vypadek/presun vps mi nejak rozbil >>> mysql. Chtel bych poprosit o info, jak to opravit, pokud s >>> tim mate nekdo nejakou zkusenost. Situace je nasledujici: >>> >>> Pri nekterych requestech (je to nahodne, 10 requestu ok, 11 >>> zfailuje) dojde ke bude k chybe pri pripojeni, nebo ke ztrate >>> spojeni. V logu vidim nasledujici: >>> >>> bud: >>> >>> OperationalError: (2013, "Lost connection to MySQL server at >>> 'reading initial communication packet', system error: 104") >>> >>> nebo: >>> >>> OperationalError: (2003, "Can't connect to MySQL server on >>> '83.167.228.14' (111)") >>> >>> nebo: >>> >>> OperationalError: (2002, "Can't connect to local MySQL server >>> through socket '/var/run/mysqld/mysqld.sock' (2)") >>> >>> mysql vypada, ze bezi normalne: >>> >>> netstat -tupan | grep mysql tcp 0 0 0.0.0.0:3306 >>> 0.0.0.0:* LISTEN 26693/mysqld >>> >>> ps ax | grep mysql 12488 ? S 0:04 /bin/sh >>> /usr/bin/mysqld_safe 26869 ? Sl 0:02 >>> /usr/sbin/mysqld --basedir=/usr --datadir=/var/lib/mysql >>> --user=mysql --log-error=/var/lib/mysql/msa.err >>> --pid-file=/var/lib/mysql/msa.pid >>> --socket=/var/run/mysqld/mysqld.sock --port=3306 >>> >>> socket vypada ok: >>> >>> ls -la /var/run/mysqld/ total 8 drwxr-xr-x 2 mysql mysql 4096 >>> Aug 5 15:32 . drwxr-xr-x 20 root root 4096 Aug 5 10:46 .. >>> srwxrwxrwx 1 mysql mysql 0 Aug 5 15:32 mysqld.sock >>> >>> >>> Kdyz zkusim mysql restartovat, dostanu nasledujici: >>> >>> /etc/init.d/mysql restart Stopping MySQL database server: >>> mysqld. Starting MySQL database server: mysqld. Checking for >>> corrupt, not cleanly closed and upgrade needing tables.. >>> msa:.../home/dsimek > ERROR 2013 (HY000) at line 1: Lost >>> connection to MySQL server during query ERROR 2002 (HY000): >>> Can't connect to local MySQL server through socket >>> '/var/run/mysqld/mysqld.sock' (111) ERROR 2002 (HY000): Can't >>> connect to local MySQL server through socket >>> '/var/run/mysqld/mysqld.sock' (2) .... >>> >>> v logu pri startu vidim toto: >>> >>> Aug 5 10:26:33 msa /etc/mysql/debian-start[30658]: Upgrading >>> MySQL tables if necessary. Aug 5 10:26:33 msa >>> /etc/mysql/debian-start[30664]: /usr/bin/mysql_upgrade: the >>> '--basedir' option is always ignored Aug 5 10:26:33 msa >>> /etc/mysql/debian-start[30664]: Looking for 'mysql' as: >>> /usr/bin/mysql Aug 5 10:26:33 msa >>> /etc/mysql/debian-start[30664]: Looking for 'mysqlcheck' as: >>> /usr/bin/mysqlcheck Aug 5 10:26:33 msa >>> /etc/mysql/debian-start[30664]: This installation of MySQL is >>> already upgraded to 5.1.63, use --force if you still need to >>> run mysql_upgrade Aug 5 10:26:33 msa >>> /etc/mysql/debian-start[30672]: Checking for insecure root >>> accounts. Aug 5 10:26:33 msa /etc/mysql/debian-start[30677]: >>> Triggering myisam-recover for all MyISAM tables >>> >>> Diky za jakykoliv tip. >>> >>> Dusan _______________________________________________ >>> Community-list mailing list Community-list@lists.vpsfree.cz >>> http://lists.vpsfree.cz/listinfo/community-list >> >> >> _______________________________________________ Community-list >> mailing list Community-list@lists.vpsfree.cz >> http://lists.vpsfree.cz/listinfo/community-list >> > > > _______________________________________________ Community-list > mailing list Community-list@lists.vpsfree.cz > http://lists.vpsfree.cz/listinfo/community-list
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