>Could be I guess, netstat just shows up the usual mass of smtp<br>>connections - it's just really odd why it's ok on the most part but as<br>>soon as somthing triggers a choke they all start backing the queue up<br>
>with messages.<br>><br>>I'll do some more checking around.<br>><br>>thanks Richard<br>><br>>SMJ<br>><br>>2008/7/7 Richard Frovarp <<a href="mailto:richard.frovarp@sendit.nodak.edu">richard.frovarp@sendit.nodak.edu</a>>:<br>
>> Simon Jones wrote:<br>>>><br>>>> hello chaps,<br>>>><br>>>> anyone have an idea why i'm seeing inconsistent performance on all 3<br>>>> of my gateway servers? Nothing shows up errors in the maillog and<br>
>>> MailScanner --Lint checks out ok but from time to time the machines<br>>>> will choke and i'll stack 2k and rising messages up in the hold queue.<br>>>><br>>>> one day they'll work fine and the hold queue will be normal, then all<br>
>>> of a sudden they'll start backing up.<br>>>><br>>>> I have postfix reading from mysql for the relay_domains /<br>>>> relay_recipients and transport maps as well as logging to a seperate<br>
>>> db on the same seperate db server for mailwatch.<br>>>><br>>>> the mysql db has dual oppy's with 10gb ram so it's pretty beefy and<br>>>> doesn't seem to be maxed at all.<br>
>>><br>>>> the gateways run fairly heavy but are by no means topping out. I've<br>>>> tried dropping max children and the batch processing settings but to<br>>>> no avail.<br>>>><br>
>>> any ideas would be really appreciated.<br>>>><br>>>> thanks<br>>>><br>>>> SMJ<br>>>><br>>><br>>> What about mail volume? Is it consistent across the days in question? Or,<br>
>> even if the numbers are the same, you might end up with bursty traffic on<br>>> the days you backup, causing everything to fall behind. Botnets, mailing<br>>> lists, all of that sort can drop traffic on you in one heck of a hurry at<br>
>> times.<br>> --<br><br>You might want to put Munin on the boxes to quickly get some high-level charts across all 3 boxes to see trending over time. We have Munin local to each box so we can check general performance info when something like this comes up.<br clear="all">
<br>-- <br>Dave Jones