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  • MentholBoy

In atentia celor care au ceva idei de mysql, php si linux, I need help. Din motive, pe care nu inteleg, o data la cateva zile, efectiv se opreste mysql-ul pe hostul pe care e siteul.

Primele dati, am o banuiala de unde era. Ramaneau in coada circa 100 de query-uri. Vinovat pare sa fi fost un plugin de wordpress.

Am scos pluginul si totul a mers minunat, dar acum iar a inceput sa se opreasca. Din cele vorbite cu Solsein, am suspectat initial ca din varii motive, se inchide mysql din motive de inactivitate. Dar pe mysql-ul respecta se genereaza, prin cacti, un grafic de trafic la fiecare 5 minute. Deci nu se poate spune ca nu exista activitate, chiar daca prin absurd nu ar intra nimeni pe forum/site, timp de 5-10 minute.

Azi, iar a murit, din motive care ma depasesc. Momentan am un php 4.4.7, cu mysql 3.23.49, tot pe slackware. Ma gandesc sa nu fie vreo problema de incompatibilitate pe undeva, ceva care sa nu ii placa IPB-ului sau WP-ului.

De aceea, maine sa incerc sa fac un test pe un slackware 12 cu mysql 5 si php 5.

Opinii, pareri, sugestii.

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  • MentholBoy
Se poate acces remote la server?

Am acces ssh la el, dar nu pot sa dau la altii din motive obiective.

Logs, mate ?

Dupa ce am scapat de treaba cu coada de query-uri, la prima "crapare", am avut urmatorul "fenomen":

Number of processes running now: 0

080320 16:31:34 mysqld restarted

080320 16:31:46 InnoDB: Started; log sequence number 0 43685

080320 16:31:53 [Note] /usr/libexec/mysqld: ready for connections.

Version: '5.0.24a' socket: '/var/run/mysql/mysql.sock' port: 0 Source distribution

Number of processes running now: 0

080320 16:33:41 mysqld restarted

080320 16:33:47 InnoDB: Started; log sequence number 0 43685

080320 16:33:48 [Note] /usr/libexec/mysqld: ready for connections.

Version: '5.0.24a' socket: '/var/run/mysql/mysql.sock' port: 0 Source distribution

Number of processes running now: 0

080320 16:35:47 mysqld restarted

080320 16:35:55 InnoDB: Started; log sequence number 0 43685

080320 16:35:56 [Note] /usr/libexec/mysqld: ready for connections.

Version: '5.0.24a' socket: '/var/run/mysql/mysql.sock' port: 0 Source distribution

Number of processes running now: 0

080320 16:37:59 mysqld restarted

080320 16:38:00 InnoDB: Started; log sequence number 0 43685

080320 16:38:00 [Note] /usr/libexec/mysqld: ready for connections.

Version: '5.0.24a' socket: '/var/run/mysql/mysql.sock' port: 0 Source distribution

Number of processes running now: 4

080320 16:39:31 mysqld restarted

080320 16:39:32 InnoDB: Started; log sequence number 0 43685

080320 16:39:32 [Note] /usr/libexec/mysqld: ready for connections.

Version: '5.0.24a' socket: '/var/run/mysql/mysql.sock' port: 0 Source distribution

Number of processes running now: 0

080320 16:41:02 mysqld restarted

080320 16:41:21 InnoDB: Started; log sequence number 0 43685

080320 16:41:21 [Note] /usr/libexec/mysqld: ready for connections.

Version: '5.0.24a' socket: '/var/run/mysql/mysql.sock' port: 0 Source distribution

Number of processes running now: 0

080320 16:43:14 mysqld restarted

080320 16:43:15 InnoDB: Started; log sequence number 0 43685

080320 16:43:15 [Note] /usr/libexec/mysqld: ready for connections.

Version: '5.0.24a' socket: '/var/run/mysql/mysql.sock' port: 0 Source distribution

Number of processes running now: 0

080320 16:43:59 mysqld restarted

080320 16:44:35 mysqld ended

080320 18:46:39 mysqld started

080320 18:46:39 InnoDB: Started; log sequence number 0 43685

080320 18:46:39 [Note] /usr/libexec/mysqld: ready for connections.

Despre asta am vb si cu Solsein. Atunci a aparut discutia cu inactivitatea care duce la oprire. De server se mai ocupa cineva, cel care imi asigura hostul si care la fel ca si mine a ramas fara idei.

Ramasese sa "faca" niste loguri mai complexe, ca sa vedem ce procese ruleaza inainte de oprire. Nu stiu inca, daca apucase sa le faca aseara, deoarece aseara nu am reusit sa vb mai pe larg cu el. Aflu de abia in cursul zilei de azi.

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  • Generaţia de Aur

Eu aia vad ca ar fi problema: "mysqld restarted".

1. Vezi in crontab daca nu ai un job care iti restarteaza mysql.

2. Daca nu e prima, e ceva naspa - ai o tabela corrupted undeva, si de fiecare data cand se ruleaza un query pe ea, iti triggeruieste un crash. Verifica tabelele, toate.

3. Incerca sa folosesti backup-ul cu optiunea force, asa incat mysql sa forteze repararea tabelei busite - daca e una busita.

4. Enable checksum pe toate tabelele - o sa merga un pic mai incet.

5. Hardware problem.

6. Out of memory.

Vrem mai multe loguri!

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  • MentholBoy

Imi cere scuze pentru lipsa de "feedback". Sa o luam cu inceputul.

1) am facut serverul nou de test (PHP5, MySQL 5). Ala merge brici si sper ca pe el sa nu mai fie probleme. Insa acum apare problema secundara. Pe acelasi server unde sunt hostat eu, mai sunt niste aplicatii & stuff, care nu prea se pupa bine cu PHP5. Incercam sa rezolvam problema aia si atunci ma mut pe noul server.

2) cred ca am descoperit posibila problema de acum in timp ce faceam niste teste.

Se pare ca pe actualul host, ceva nu se pupa ca lumea intre partea de mysql si cea de php.

Cum am ajuns la concluzia asta? A facut Zeri un alt server identic cu actualul, cu aceleasi chestii pe el (PHP 4.4.3 cat naiba e) si a updatat doar phpmyadmin si cand intrai in el, afisa o eroare in care spunea ceva de genul: "the current PHP MySQL libraries are not fully compatible with mysql 5. Therefore, some strange behaviors may occur". Am mesajul salvat acasa in arhiva de mess.

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  • MentholBoy

Te cred. Pe mine ma dispera si mai mult.

Pana la sfarsitul saptamanii sper sa rezolv toate problemele si sa pot muta baza de date pe noul server facut aseara si atunci ar trebui sa mearga bine (sper :()

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  • MentholBoy

Serverul asta nu inceteaza sa ma minuneze.

Se pare ca acum problema e de la memorie

Mar 25 16:26:29 websrv kernel: Out of Memory: Killed process 23335 (mysqld).

Mar 25 16:26:29 websrv kernel: Out of Memory: Killed process 23336 (mysqld).

Mar 25 16:26:29 websrv kernel: Out of Memory: Killed process 23337 (mysqld).

Mar 25 16:26:29 websrv kernel: Out of Memory: Killed process 23339 (mysqld).

Mar 25 16:26:29 websrv kernel: Out of Memory: Killed process 23340 (mysqld).

Mar 25 16:26:29 websrv kernel: Out of Memory: Killed process 23341 (mysqld).

Mar 25 16:26:29 websrv kernel: Out of Memory: Killed process 23342 (mysqld).

Mar 25 16:26:29 websrv kernel: Out of Memory: Killed process 23454 (mysqld).

Mar 25 16:26:29 websrv kernel: Out of Memory: Killed process 23462 (mysqld).

Mar 25 16:26:31 websrv kernel: Out of Memory: Killed process 23475 (mysqld).

Mar 25 16:26:31 websrv kernel: Out of Memory: Killed process 22079 (httpd).

Mar 25 16:26:31 websrv kernel: Out of Memory: Killed process 22079 (httpd).

Mar 25 16:26:31 websrv kernel: Out of Memory: Killed process 4026 (httpd).

Mar 25 16:26:31 websrv kernel: Out of Memory: Killed process 4026 (httpd).

Mar 25 16:26:31 websrv kernel: Out of Memory: Killed process 7412 (httpd).

Mar 25 16:26:31 websrv kernel: Out of Memory: Killed process 7412 (httpd).

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