Error Incorrect Key File For Table
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Error Incorrect Key File For Table Replication
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General Error 126 Incorrect Key File For Table Try To Repair It
them; it only takes a minute: Sign up How do you fix a MySQL “Incorrect key file” error when you can't repair the table? up vote 20 down vote favorite 4 I'm trying to run a rather large query error 126 (hy000) incorrect key file for table try to repair it that is supposed to run nightly to populate a table. I'm getting an error saying Incorrect key file for table '/var/tmp/#sql_201e_0.MYI'; try to repair it but the storage engine I'm using (whatever the default is, I guess?) doesn't support repairing tables. how do I fix this so I can run the query? mysql mysql-error-126 share|improve this question edited May 5 '11 at 23:24 OMG Ponies 198k36356415 asked Mar 11 '10 at 21:15 Wayne Molina 7,7441770134 the tmp incorrect key file for table try to repair it when using lock tables folder has a limit usually 2GB, try df -h to see it –Elzo Valugi Jan 18 '12 at 12:17 add a comment| 6 Answers 6 active oldest votes up vote 1 down vote accepted The storage engine (MyISAM) DOES support repair table. You should be able to repair it. If the repair fails then it's a sign that the table is very corrupted, you have no choice but to restore it from backups. If you have other systems (e.g. non-production with same software versions and schema) with an identical table then you might be able to fix it with some hackery (copying the frm an MYI files, followed by a repair). In essence, the trick is to avoid getting broken tables in the first place. This means always shutting your db down cleanly, never having it crash and never having hardware or power problems. In practice this isn't very likely, so if durability matters you may want to consider a more crash-safe storage engine. share|improve this answer answered Mar 12 '10 at 7:41 MarkR 46.1k886118 add a comment| up vote 31 down vote You must change the location of MySQL's temporary folder which is '/tmp' in most cases to a location with a bigger disk space. Change it in MySQL's config file. Basically your server is running out of disk space where /tmp is located. share|improve this answer answered Nov 2 '10 at 7
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Incorrect Key File For Table '/tmp/#sql
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Incorrect Key File For Table 'user' Try To Repair It
just like you, helping each other. Join them; it only takes a minute: Sign up MySQL, Error 126: Incorrect key file for table up vote 18 down vote favorite 3 I read the following question that has http://stackoverflow.com/questions/2428738/how-do-you-fix-a-mysql-incorrect-key-file-error-when-you-cant-repair-the-tabl relevance, but the replies didn't satify me: MySQL: #126 - Incorrect key file for table The problem When running a query I get this error ERROR 126 (HY000): Incorrect key file for table` The question When I'm trying to find the problem I cant't find one, so I don't know how to fix it with the repair command. Is there any pointers to how I can find the problem causing this issue in any other http://stackoverflow.com/questions/19003106/mysql-error-126-incorrect-key-file-for-table way then I already have tried? The query mysql> SELECT -> Process.processId, -> Domain.id AS domainId, -> Domain.host, -> Process.started, -> COUNT(DISTINCT Joppli.id) AS countedObjects, -> COUNT(DISTINCT Page.id) AS countedPages, -> COUNT(DISTINCT Rule.id) AS countedRules -> FROM Domain -> JOIN CustomScrapingRule -> AS Rule -> ON Rule.Domain_id = Domain.id -> LEFT JOIN StructuredData_Joppli -> AS Joppli -> ON Joppli.CustomScrapingRule_id = Rule.id -> LEFT JOIN Domain_Page -> AS Page -> ON Page.Domain_id = Domain.id -> LEFT JOIN Domain_Process -> AS Process -> ON Process.Domain_id = Domain.id -> WHERE Rule.CustomScrapingRule_id IS NULL -> GROUP BY Domain.id -> ORDER BY Domain.host; ERROR 126 (HY000): Incorrect key file for table '/tmp/#sql_2b5_4.MYI'; try to repair it mysqlcheck root@scraper:~# mysqlcheck -p scraper Enter password: scraper.CustomScrapingRule OK scraper.Domain OK scraper.Domain_Page OK scraper.Domain_Page_Rank OK scraper.Domain_Process OK scraper.Log OK scraper.StructuredData_Joppli OK scraper.StructuredData_Joppli_Product OK counted rows mysql> select count(*) from CustomScrapingRule; +----------+ | count(*) | +----------+ | 26 | +----------+ 1 row in set (0.04 sec) mysql> select count(*) from Domain; +----------+ | count(*) | +----------+ | 2 | +----------+ 1 row in set (0.01 sec) mysql> select count(*) from Domain_Page; +----------+ | count(*) | +----------+ | 134288 | +----------+ 1 row in set (0.17 sec) mysql> select count(*) from Domain_Page_Rank; +----------+ | count(*) | +----------+ | 4671111 | +----------+ 1 row in set (11.69 sec) mysql> select count(*) from Domain_Process
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optimization Table Locks Why they happen, and how to reduce them Reduce Costs Make better use of your server hardware A fix for "Incorrect key file for table '/tmp/#sql_xxxx_x.MYI'" in MySQL By Stephen Jayna, 8th March 2011 The Most Likely Cause: You're Out Of Space Chances are, that if you're seeing this error, you've run out of space in /tmp or wherever tmpdir points to. If only for the time it takes MySQL to create a temporary file (filling the parition) and delete it in disgust. In Ever So Slightly More Detail DBD::mysql::st execute failed: Incorrect key file for table '/tmp/#sql_4091_0.MYI'; try to repair it [for Statement "... The idea of it being suggested that one needs to run a repair on a temporary table should raise an eyebrow. It just doesn't make much sense: it suggests it's somehow corrupted, but since it's transitory and has just been freshly created by MySQL, it should never be needed. Not to mention tricky to implement. In my experience, limited though it is, the primary reason for seeing this error message is because your tmpdir has run out of space. Like me you'll check how much free space you have: 1Gb, 2Gb, 4Gb. It may not be enough. And here's why: MySQL can create temporary tables bigger than that in a matter of seconds, quickly filling up any free space. Depending on the nature of the query and the size of the database naturally. Take this evening for example: I had a temporary table created that was around 3.6Gb in size, from a database that's only 5.4Gb in total, and I had only had 1.8Gb of free space. Imagine a couple of queries of that nature running in parallel. The moment the space has been filled, the above error will be thrown, the temporary file on disk will be deleted, and you'll be none the wiser. Conclusion Perhaps the MySQL instance could be better configured - but that's not the point - the error message is oblique at best. Make sure you've got enough temporary space, you may need more than you imagine. Your Comments You saved my DAY! Thanks a You saved my DAY! Thanks a lot posted at 4:39 pm on Dec 28th, 2011 by Anonymous You are very right What you say is absolutely right. The tmp dir size needs to be at least twice the size of the biggest table you have . CHeck the mysql li