Webmail high load

[hekri]

maybe shell script run every 10 minutes

ps aux | grep round | awk -F " " '{print $10}' | awk -F ":" '{print $1}'

it will print roundcube run time if > 100 kill found process

 

[IIIBradIII]

Need this fixed ASAP

Wow, we could use a fix for this. We had a server that'd been slow for a few days - we finally checked into it and sure enough, it was this roundcube process going nutso. We would certainly appreciate a speedy fix to this, Cpanel folks. TIA

 

[hekri]

Run thise every 30 minutes for root cron, will automaticaly chceck roundcube process if hang kill process on my server fixed problem on Centos 4.x and Centos 5.x

#!/bin/sh

for ROUND in `ps aux | grep roundcube | awk -F " " '{print $10}' | awk -F ":" '{print $1}'`;
do

if [ $ROUND -ge 20 ]; then
pkill -u cpanelroundcube
echo "kill roundcube process roundcube";
fi

done

 

[linuxserverguy]

nice suggestion there @hekri

Any update Cpanel guys? any hotfix for this or anything due in next stable version to resolve this?

 

[mealto]

Still no fix? We are trying to roll out RoundCube. Had better wait.

 

[hostwaffle09]

Well, here are my tries. First of all I've tried to install imapproxy in front of RC. After that CPU load terribly increased to 70! I mentioned that number of concurrent IMAP connections was always the same in that case and was equal to 10. Bingo! I have courier-imap as IMAP server and MAXPERIP setting was 10. That was the point. All other IMAP connections above 10th gave such terrible load. I increased this setting to 100 for the IP-address of RC and deinstalled imapproxy because unfortunately it creates too much concurrent ESTABLISHED connections to the IMAP server and causes "mini DOS attack" as I called it...

Thanks.

Regards

web space hosting

 

[myeddie7]

Today, 1 of my cPanel servers nearly crashed. The load went upto 60 - 100. After more than 1 hour, I can finally login into server, kill all service and wait until the load went down. I found out that it was caused by cpanelro. too many process from this cpanelro. i run a latest build, cPanel 11.24.5-R37127 - WHM 11.24.2 - X 3.9

Anyone here knows how to avoid this in future ? Is there any security problem with Roundcube ? even i run on latest cPanel built?

Thanks

 

[4u123]

Today, 1 of my cPanel servers nearly crashed. The load went upto 60 - 100. After more than 1 hour, I can finally login into server, kill all service and wait until the load went down. I found out that it was caused by cpanelro. too many process from this cpanelro. i run a latest build, cPanel 11.24.5-R37127 - WHM 11.24.2 - X 3.9

Anyone here knows how to avoid this in future ? Is there any security problem with Roundcube ? even i run on latest cPanel built?

Thanks

Try reading this forum. We've been using this suggestion...

http://forums.cpanel.net/webhost-manager/102425-webmail-high-load-3.html#post533961

Not had a problem since. Yes its a workaround not a fix but works as a short term solution.

 

[NetX]

I have the same problem on my servers (the updated to stable cpanel version ahvent fixed the problem)


cPanel 11.24.4-C37008 - WHM 11.24.2 - X 3.9
REDHAT Enterprise 4 i686 standard on server

 

[denver]

If anyone is interested, the problem seems to be a never ending loop caused when trying to log in with an invalid account( eg. [email protected]).

I have modified the file:

/usr/local/cpanel/base/3rdparty/roundcube/program/lib/imap.inc

and introduced a counter in function iil_C_Login (line 416).

Bellow are the modifications i made in order to stop the loop from taking over the server.

function iil_C_Login(&$conn, $user, $password) {

    iil_PutLine($conn->fp, 'a001 LOGIN "'.iil_Escape($user).'" "'.iil_Escape($password).'"');
    $counter = 0;
    do {
        $line = iil_ReadReply($conn->fp);
        if ($line === false) {
            break;
        }else if($counter > 0){
                break;
        }
        $counter = $counter + 1;
    } while (!iil_StartsWith($line, 'a001 ', true));
    // process result
    $result = iil_ParseResult($line);
    if ($result == 0) {
        $conn->error    .= '';
        $conn->errorNum  = 0;
        return $conn->fp;
    }

    fclose($conn->fp);

    $conn->error    .= 'Authentication for ' . $user . ' failed (LOGIN): "';
    $conn->error    .= htmlspecialchars($line)."\"";
    $conn->errorNum  = $result;

    return $result;
}

With these modifications an error is returned to the user after a short while letting him know there was a problem connecting to the IMAP server. If you want to return a "Login failed" you have to modify the function iil_ParseResult (line 288) like so:

function iil_ParseResult($string) {
        $a = explode(' ', $string);
        if (count($a) > 2) {
                if (strcasecmp($a[1], 'OK') == 0) {
                        return 0;
                } else if (strcasecmp($a[1], 'NO') == 0) {
                        return -1;
                } else if (strcasecmp($a[1], 'BAD') == 0) {
                        return -2;
                } else if (strcasecmp($a[1], 'BYE') == 0) {
                        return -3;
                }
        }else if(!$string){
                return -1;
        }
        return -4;
}

Hope this helps someone.

 

[denver]

This issue has been fixed

Changeset 2814 – RoundCube Webmail

All we have to do now is wait for a stable release and for CPanel to upgrade.

 

[konrath]

Yours suggestions not solved the problem. Iam waiting the update from cpanel.

I have turned off the roundcube on my servers.

 

[denver]

Cpanel usually overwrites any manual changes when you upcp. Its best to wait for roundcube to release a stable version and for CPanel to upgrade (although that could take some time).

Or it could be a different bug all together, but this fixed it on my personal (non-cpanel) VPS.

 

[konrath]

Hello

This has been fixed?

Thank you
Konrath

 

[cPanelDavidG]

Hello

This has been fixed?

Thank you
Konrath

As has been stated before, this is being addressed in 11.25. Since 11.25 is still in BETA and has not yet propagated to the production-worthy builds, this has not yet been addressed in the production-worthy builds.

 

[hekri]

Maybe someone from cpanel will put here all code of the file: program/lib/imap.inc ??!! how many months we should wait for fix thise problem!

 

[konrath]

Is very ridiculous keep this bug.

Iam lost users because I turned off the roundcube.

Thank you CPANEL DEVELOPERS.

 

[donneo2000]

We still got this problem. This is not fixed yet?

 

[hekri]

Yes no one fix that, cpanel do nothing to help us. I pay couple tousand $$ per cpanel licenses and thing that should propably change to Direct Admin...

 

[rligg]

Run thise every 30 minutes for root cron, will automaticaly chceck roundcube process if hang kill process on my server fixed problem on Centos 4.x and Centos 5.x

#!/bin/sh

for ROUND in `ps aux | grep roundcube | awk -F " " '{print $10}' | awk -F ":" '{print $1}'`;
do

if [ $ROUND -ge 20 ]; then
pkill -u cpanelroundcube
echo "kill roundcube process roundcube";
fi

done

What do you name this script. I tried calling it roudcubefix.sh, but I cannot execute it. Says file not found.