RE: mysqldump: Got error: 1017: Can't find file: './ssconsole/ss_requestmaster.frm' (errno: 24) when using LOCK TABLES
Thanks dear everyone for sharing your views! Let me try the workarounds and keep you posted. Best Rgs, Shafi AHMED _ From: Suresh Kuna [mailto:sureshkumar...@gmail.com] Sent: Saturday, September 24, 2011 8:56 PM To: Prabhat Kumar Cc: Dan Nelson; Shafi AHMED; mysql@lists.mysql.com Subject: Re: mysqldump: Got error: 1017: Can't find file: './ssconsole/ss_requestmaster.frm' (errno: 24) when using LOCK TABLES Hello Shafi, Adding to Prabhat alternatives, you can use --force to the mysqldump command to ignore the errors and continue taking backup. Regarding the error, we need to check whether the table is present or not and the engine type specifically. Thanks Suresh Kuna On Sat, Sep 24, 2011 at 3:31 AM, Prabhat Kumar aim.prab...@gmail.com wrote: correct. mysqldump by default has --lock-tables enabled, which means it tries to lock all tables to be dumped before starting the dump. And doing LOCK TABLES t1, t2, ... for really big number of tables will inevitably exhaust all available file descriptors, as LOCK needs all tables to be opened. Workarounds: --skip-lock-tables will disable such a locking completely. Alternatively, --lock-all-tables will make mysqldump to use FLUSH TABLES WITH READ LOCK which locks all tables in all databases (without opening them). In this case mysqldump will automatically disable --lock-tables because it makes no sense when --lock-all-tables is used. or try with add --single_transaction to your mysqldump command On Fri, Sep 23, 2011 at 9:49 AM, Dan Nelson dnel...@allantgroup.com wrote: In the last episode (Sep 23), Shafi AHMED said: I have a mysql database of 200G size and the backup fails due to the foll. Issue. mysqldump: Got error: 1017: Can't find file: './ssconsole/ss_requestmaster.frm' (errno: 24) when using LOCK TABLES Can someone assist pls.? $ perror 24 OS error code 24: Too many open files You need to bump up the max files limit in your OS. It may be defaulting to a small number like 1024. If you can't change that limit, edit your my.cnf and lower the table_open_cache number. You'll lose performance though, since mysql will have to stop accessing some tables to open others. http://dev.mysql.com/doc/refman/5.5/en/not-enough-file-handles.html -- Dan Nelson dnel...@allantgroup.com -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/mysql?unsub=aim.prab...@gmail.com -- Best Regards, Prabhat Kumar MySQL DBA My Blog: http://adminlinux.blogspot.com My LinkedIn: http://www.linkedin.com/in/profileprabhat -- Thanks Suresh Kuna MySQL DBA Get your world in your inbox! Mail, widgets, documents, spreadsheets, organizer and much more with your Sifymail WIYI id! Log on to http://www.sify.com ** DISCLAIMER ** Information contained and transmitted by this E-MAIL is proprietary to Sify Technologies Limited and is intended for use only by the individual or entity to which it is addressed, and may contain information that is privileged, confidential or exempt from disclosure under applicable law. If this is a forwarded message, the content of this E-MAIL may not have been sent with the authority of the Company. If you are not the intended recipient, an agent of the intended recipient or a person responsible for delivering the information to the named recipient, you are notified that any use, distribution, transmission, printing, copying or dissemination of this information in any way or in any manner is strictly prohibited. If you have received this communication in error, please delete this mail notify us immediately at ad...@sifycorp.com
Re: mysqldump: Got error: 1017: Can't find file: './ssconsole/ss_requestmaster.frm' (errno: 24) when using LOCK TABLES
Hello Shafi, Adding to Prabhat alternatives, you can use --force to the mysqldump command to ignore the errors and continue taking backup. Regarding the error, we need to check whether the table is present or not and the engine type specifically. Thanks Suresh Kuna On Sat, Sep 24, 2011 at 3:31 AM, Prabhat Kumar aim.prab...@gmail.comwrote: correct. mysqldump by default has --lock-tables enabled, which means it tries to lock all tables to be dumped before starting the dump. And doing LOCK TABLES t1, t2, ... for really big number of tables will inevitably exhaust all available file descriptors, as LOCK needs all tables to be opened. Workarounds: --skip-lock-tables will disable such a locking completely. Alternatively, --lock-all-tables will make mysqldump to use FLUSH TABLES WITH READ LOCK which locks all tables in all databases (without opening them). In this case mysqldump will automatically disable --lock-tables because it makes no sense when --lock-all-tables is used. or try with add --single_transaction to your mysqldump command On Fri, Sep 23, 2011 at 9:49 AM, Dan Nelson dnel...@allantgroup.com wrote: In the last episode (Sep 23), Shafi AHMED said: I have a mysql database of 200G size and the backup fails due to the foll. Issue. mysqldump: Got error: 1017: Can't find file: './ssconsole/ss_requestmaster.frm' (errno: 24) when using LOCK TABLES Can someone assist pls.? $ perror 24 OS error code 24: Too many open files You need to bump up the max files limit in your OS. It may be defaulting to a small number like 1024. If you can't change that limit, edit your my.cnf and lower the table_open_cache number. You'll lose performance though, since mysql will have to stop accessing some tables to open others. http://dev.mysql.com/doc/refman/5.5/en/not-enough-file-handles.html -- Dan Nelson dnel...@allantgroup.com -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/mysql?unsub=aim.prab...@gmail.com -- Best Regards, Prabhat Kumar MySQL DBA My Blog: http://adminlinux.blogspot.com My LinkedIn: http://www.linkedin.com/in/profileprabhat -- Thanks Suresh Kuna MySQL DBA
Re: mysqldump: Got error: 1017: Can't find file: './ssconsole/ss_requestmaster.frm' (errno: 24) when using LOCK TABLES
Someone seems to have deleted that file, which contains the description of the corresponding table. Recreate the exact same table (EXACT, including keys, indices, datatypes, encoding, the lot) and copy that tables's .frm file to replace the lost one. Then pray to the elder gods and restart your mysqld to see if it works. - Original Message - From: Shafi AHMED shafi.ah...@sifycorp.com To: mysql@lists.mysql.com Sent: Friday, 23 September, 2011 1:42:26 PM Subject: mysqldump: Got error: 1017: Can't find file: './ssconsole/ss_requestmaster.frm' (errno: 24) when using LOCK TABLES Folks I have a mysql database of 200G size and the backup fails due to the foll. Issue. mysqldump: Got error: 1017: Can't find file: './ssconsole/ss_requestmaster.frm' (errno: 24) when using LOCK TABLES Can someone assist pls.? Best Rgs, Shafi AHMED -- Bier met grenadyn Is als mosterd by den wyn Sy die't drinkt, is eene kwezel Hy die't drinkt, is ras een ezel
Re: mysqldump: Got error: 1017: Can't find file: './ssconsole/ss_requestmaster.frm' (errno: 24) when using LOCK TABLES
In the last episode (Sep 23), Shafi AHMED said: I have a mysql database of 200G size and the backup fails due to the foll. Issue. mysqldump: Got error: 1017: Can't find file: './ssconsole/ss_requestmaster.frm' (errno: 24) when using LOCK TABLES Can someone assist pls.? $ perror 24 OS error code 24: Too many open files You need to bump up the max files limit in your OS. It may be defaulting to a small number like 1024. If you can't change that limit, edit your my.cnf and lower the table_open_cache number. You'll lose performance though, since mysql will have to stop accessing some tables to open others. http://dev.mysql.com/doc/refman/5.5/en/not-enough-file-handles.html -- Dan Nelson dnel...@allantgroup.com -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/mysql?unsub=arch...@jab.org
Re: mysqldump: Got error: 1017: Can't find file: './ssconsole/ss_requestmaster.frm' (errno: 24) when using LOCK TABLES
correct. mysqldump by default has --lock-tables enabled, which means it tries to lock all tables to be dumped before starting the dump. And doing LOCK TABLES t1, t2, ... for really big number of tables will inevitably exhaust all available file descriptors, as LOCK needs all tables to be opened. Workarounds: --skip-lock-tables will disable such a locking completely. Alternatively, --lock-all-tables will make mysqldump to use FLUSH TABLES WITH READ LOCK which locks all tables in all databases (without opening them). In this case mysqldump will automatically disable --lock-tables because it makes no sense when --lock-all-tables is used. or try with add --single_transaction to your mysqldump command On Fri, Sep 23, 2011 at 9:49 AM, Dan Nelson dnel...@allantgroup.com wrote: In the last episode (Sep 23), Shafi AHMED said: I have a mysql database of 200G size and the backup fails due to the foll. Issue. mysqldump: Got error: 1017: Can't find file: './ssconsole/ss_requestmaster.frm' (errno: 24) when using LOCK TABLES Can someone assist pls.? $ perror 24 OS error code 24: Too many open files You need to bump up the max files limit in your OS. It may be defaulting to a small number like 1024. If you can't change that limit, edit your my.cnf and lower the table_open_cache number. You'll lose performance though, since mysql will have to stop accessing some tables to open others. http://dev.mysql.com/doc/refman/5.5/en/not-enough-file-handles.html -- Dan Nelson dnel...@allantgroup.com -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/mysql?unsub=aim.prab...@gmail.com -- Best Regards, Prabhat Kumar MySQL DBA My Blog: http://adminlinux.blogspot.com My LinkedIn: http://www.linkedin.com/in/profileprabhat
