we have a web application (racktables) that's giving us grief on our production box. whenever users try to run a search, it gives the following error:
Pdo exception: PDOException
SQLSTATE[HY000]: General error: 5 Out of memory (Needed 2057328 bytes) (HY000)
I cannot recreate the issue on our backup server. The servers match except for the fact that in production we have 16GB RAM and our backup we have 8GB. It's a moot point though because both are running 32 bit os's and so are only using 4GB of RAM. we also have set up a swap partition...
Here's what i get back from the "free -m" command in production:
prod:/etc# free -m
total used free shared buffers
Mem: 3294 1958 1335 0 118
-/+ buffers: 1839 1454
Swap: 3817 109 3707
prod:/etc#
I've checked to make sure that my.cnf on both boxes match. The database from production was replicated onto the backup server... so the data matches as well.
I guess our options are to:
A) convert the o/s to 64 bit so we can use more RAM.
B) start tweaking some of the innodb settings in my.cnf.
But before I try either A or B, I wanted to know if there's anything else I should compare between the two servers... seeing how the backup is working just fine. There must be a difference somewhere that we are not accounting for.
Any suggestions would be appreciated.