Download & Extend

Communication link failure: 1153 issue when trying to restore

Project:Backup and Migrate
Version:7.x-2.3
Component:Miscellaneous
Category:support request
Priority:critical
Assigned:Unassigned
Status:active

Issue Summary

when trying to restore the database from old backup, the restore failed in the middle with the following error:

PDOException: SQLSTATE[08S01]: Communication link failure: 1153 Got a packet bigger than 'max_allowed_packet' bytes

similar error occur before I tried to restore from an old backup and was the reason I tried to restore.

The site is broken as a result. Any help is appreciated.

Comments

#1

This is a universally problematic error for Drupal sites. You need to do any or all of the following: a) Don't save watchdog tables to your backups, b) don't save cache tables to your backups, and, most importantly, c) reconfigure your MySQL server to allow more packets: http://drupal.org/node/1291756

I had this a lot when I was using Pagodabox, which doesn't let you configure max_allowed_packets. I had to spin up a local development site, restore to that from the B&M backup file, create a SQL dump, re-install Drupal on the hosted site, tunnel back to its DB with a mysql client, and restore that way.

(Needless to say: not using Pagodabox at the moment.)

nobody click here