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NowSMS Support Forums ⬆ NowSMS Support - SMS Issues ⬆ Archive through August 22, 2012 ⬆ |
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| Author | Message | |||
| Chris Frequent Contributor Username: Chrisc Post Number: 61 Registered: 12-2008 |
Hi guys We've been noticing lately that our CPU usage gradually increases during the course of the day. Today for example, we're running at an average of 50% for each of our SMS Servers, which we believe is attributable to a high amount of LCK files. Usually when we see this type of behaviour, our sending rates are hitting its maximum throughput rate so it's completely understandable that a high CPU will be observed under these conditions. From what we're seeing, approximately 80% of all the LCK files are from one of our SMPP users. The others haven't done much activity today, but we believe the high CPU and high amount of LCK files are related. We have begun to notice the high CPU since the last version change of NowSMS (version 2012.02.03), but our last version (version 2011.09.22) did not exhibit this behaviour. We're unable to comment on whether or not a high amount of LCK files were present on the older version, but the CPU was near on idling levels so I'm presuming not. Is there any way you guys can help us out with this and reduce the CPU usage? Thank you Regards Chris | |||
| Des - NowSMS Support Board Administrator Username: Desosms Post Number: 3792 Registered: 08-2008 |
Hi Chris, We are investigating. I am seeing a similar problem with a large buildup of LCK files on a test system. Nothing is supposed to have changed about how these files are handled. (They are used to ensure all parts of a multipart message get routed through the same SMSC connection.) I expected to have some more information by now, but I don't yet. All I can say right now is that this is a priority for us to resolve and/or explain. -- Des NowSMS Support | |||
| Bryce Norwood - NowSMS Support Board Administrator Username: Bryce Post Number: 8015 Registered: 10-2002 |
Hi Chris, Sorry, this is a bug. We changed the order of processing to tweak some extra speed for async SMPP connections. However, this broke the more immediate cleanup of these .LCK files. When they are no longer relevant, they should remain on the system no longer than 15 seconds (slight delay to allow for slight delays in transmission from client submissions). There was a backup process that would remove them after approximately 4 hours, however that would leave far too many present on a busy system. I have posted an update at http://www.nowsms.com/download/nowsms20120216.zip. I have also replaced recent downloads with this version to try to minimize impact of people downloading affected versions. -bn | |||
