Solved

PHP Fatal error: Out of memory

Posted on 2010-09-16
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Last Modified: 2013-12-13
I am on a web server: IIS 6, PHP 5.3 and MySQL.
I received this fastcgi error:

FastCGI Error
The FastCGI Handler was unable to process the request.
________________________________________
Error Details:
•      The FastCGI process exceeded configured activity timeout
•      Error Number: 258 (0x80070102).
•      Error Description: The wait operation timed out.
HTTP Error 500 - Server Error.
Internet Information Services (IIS)

So I have my admin set the following:

php.ini:
Max_execution_time = 1800

Fcgiext.ini:
RequestTimeout=1800
ActivityTimeout=1200
InstanceMaxRequests=10000
EnvironmentVars=PHP_FCGI_MAX_REQUESTS:10000

Then, I got this error:

PHP Fatal error:  Allowed memory size of 134217728 bytes exhausted (tried to allocate 469342568 bytes)

So, then I have him increase the memory_limit for php.ini to 1G.
But I am still running an out of memory problem.  I am retrieving data from a table that have over 600K records.

My php page:

$mysqli = @new mysqli('localhost', 'user', 'pass!', 'database');

$sql = "select * from table";
if($result = $mysqli->query($sql))
{
    echo '<pre>';
    var_dump($result );
    echo '</pre>';

}
else
{
      die("Error in adding investor address: ".$sql." ==> ".$mysqli->error);
}

die("help!");
0
Comment
Question by:bigjdve
  • 3
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10 Comments
 
LVL 12

Assisted Solution

by:Rok-Kralj
Rok-Kralj earned 250 total points
ID: 33696903
600k records, that is a lot. One GB is not enough. Set the limit to at least 3GB, depending on how many columns you have.
0
 
LVL 10

Expert Comment

by:mstrelan
ID: 33698079
Do you really need 600 000 records available at one time? It sounds like you could probably address this by doing less.
0
 
LVL 3

Author Comment

by:bigjdve
ID: 33702376
I know 600K of records is crazy.  But I have to work with that table until I create a new database schema and be able to use that schema.  That will not happen for a while so I have to assume that I am stuck with that table with 600K records.  Is there some configuration that I can do to ensure that I don't run into this memory limitation in the future?
0
 
LVL 10

Assisted Solution

by:mstrelan
mstrelan earned 250 total points
ID: 33706565
In your php.ini there should be a memory_limit setting. If you don't know where php.ini is on your system you can call phpinfo() which will tell you. You will need to restart IIS after modifying this.

Some servers allow you to dynamically set this value by called ini_set('memory_limit', '3G'); but you'll have to call phpinfo() again after that setting to see if it worked
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LVL 12

Expert Comment

by:Rok-Kralj
ID: 33708177
Just set the memory limit to 3GB or higher (or to anything like 90% of available RAM on the server), as I said. It is fine to use a lot of ram on rare situations (like you said "That will not happen for a while").
0
 
LVL 3

Accepted Solution

by:
bigjdve earned 0 total points
ID: 33886534
By creating indexes, it is able to process the query within the set time limit.
0
 
LVL 12

Expert Comment

by:Rok-Kralj
ID: 33892268
I object.

Reason: Author did not respond to my additional comment. After one month, he posts a "solution", which is a clear effort to get the points back in unfair manner.

As we can read, the problem was in server "memory limit", and after magically the problem becomes "time limit". Important difference.

Proposal: Accept #33696903
0
 
LVL 10

Expert Comment

by:mstrelan
ID: 33892332
I propose accept #33706565 because it explains how to do it, but give equal points to #33696903 as it tells you what the solution is.

I also think the real solution is #33698079. Why would you need every record in memory at one time?
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