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Titre | mysql1 data corruption |
ID | Opération #116 |
État | terminé |
Date de début | 16 juil. 2013 23:51 |
Date de fin | 17 juil. 2013 14:11 |
Serveurs concernés |
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16 juil. 2013 23:13 |
One of the disks is showing errors. We will have to restart the server. Expected downtime: 5 minutes. |
16 juil. 2013 23:52 |
The server is being rebooted. |
16 juil. 2013 23:56 |
We’re seeing weird disk issues. |
17 juil. 2013 00:02 |
It looks like we have a bad disk corruption issue. Still investigating. |
17 juil. 2013 00:13 |
The data are most certainly unaccessible and we will have to load the backups. More details will follow later. |
17 juil. 2013 00:20 |
It will most certainly take several hours to recover from the backups. We’re very sorry about this. |
17 juil. 2013 01:49 |
We’re still working on restoring data. |
17 juil. 2013 03:17 |
Several database files seem to be readable and healthy. We will try to recover as much as we can from the old disk (with up-to-date data). What cannot be recovered this way will have to be restored from the backups. We’re still several hours away from having a working mysql1 server. |
17 juil. 2013 04:51 |
It looks like a large proportion of databases could be recovered without any loss. We’re still not sure at this point. |
17 juil. 2013 05:26 |
We hope to have the first databases recovered and accessible in 2 hours. Loading all databases will take a few more hours. |
17 juil. 2013 07:07 |
We’ve started to import recovered databases. We don’t have an ETA yet; at least a couple of hours. |
17 juil. 2013 08:03 |
The import process is still ongoing and will unfortunately take more time than we initially hoped. Note that all customers hosting databases on mysql1 can ask us for a full refund for this month, as specified in our terms of services. We would like to apologize again for this very long service interruption. |
17 juil. 2013 08:39 |
We’re working on speeding up the import process and evaluating our options. |
17 juil. 2013 08:59 |
About 30% of all databases have been recovered and are now accessible. |
17 juil. 2013 10:35 |
About 80% of all databases have now been recovered. |
17 juil. 2013 11:16 |
99% of non-corrupted databases have been restored. We’re now restoring the corrupted databases from the last backups. |
17 juil. 2013 12:46 |
Still working to restore corrupted databases. We manually check each of them. |
17 juil. 2013 14:11 |
All databases have now been imported. If something is still wrong with your database, please open a support ticket and we’ll help you. More than 96% of the databases on mysql1 didn’t suffer any corruption, only an extended outage. The remaining 4% were partially or totally corrupted and had to be restored from the backups. We’re very sorry about this very serious issue. We’ll write a blog post to explain in details what happened. |
17 juil. 2013 14:34 |
Note that among the 4%, a few databases may STILL be partially corrupted. For those, there are basically 2 options: either recover from a backup, or try to fix the current database with our help. Contact us if you fall in this category. |