Monolith (Jun 14 2011)

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Message boards : Technical News : Monolith (Jun 14 2011)

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Author	Message
Kevin Olley Send message Joined: 3 Aug 99 Posts: 368 Credit: 33,701,326 RAC: 3,852	Message 1121004 - Posted: 24 Jun 2011, 17:56:42 UTC - in response to Message 1120864.
	For whatever reasons, the splitters seem to be unable to work fast enough to maintain a 'ready to send' cache. So at times, there is little work going out. Thus, the 'feathering' seen on the Cricket graph. Yes but look at the in progress graph on the server graphs page, the last 96 Hrs graph shows a steady increase with no fluctuations, the slope of the graph seems to be as steep as when the pipe has been maxed. Is the pipe able to handle this load easier than being maxed with all the network problems. If everyone is getting some work does it matter if us faster users take a little bit longer to fill our caches to our prefured levels? ____________ Kevin
	ID: 1121004 ·

msattler Volunteer tester Send message Joined: 9 Jul 00 Posts: 34718 Credit: 355,297,990 RAC: 379,612	Message 1121016 - Posted: 24 Jun 2011, 18:07:41 UTC - in response to Message 1121004.
	For whatever reasons, the splitters seem to be unable to work fast enough to maintain a 'ready to send' cache. So at times, there is little work going out. Thus, the 'feathering' seen on the Cricket graph. Yes but look at the in progress graph on the server graphs page, the last 96 Hrs graph shows a steady increase with no fluctuations, the slope of the graph seems to be as steep as when the pipe has been maxed. Is the pipe able to handle this load easier than being maxed with all the network problems. If everyone is getting some work does it matter if us faster users take a little bit longer to fill our caches to our prefured levels? I won't complain. At least when some work is assigned, the downloads seem to be going through straight off. ____________ ****** "Ask not, what your kitty can do for you. Ask what you can do for your kitty." As it is kitten, so shall it be done.
	ID: 1121016 ·

Grant (SSSF) Send message Joined: 19 Aug 99 Posts: 5290 Credit: 41,841,487 RAC: 32,742	Message 1121208 - Posted: 24 Jun 2011, 22:56:33 UTC - in response to Message 1120884.
	Sticking to technical news to at least some degree, I notice over the past 2 days the cricket is giving an unusual pattern showing a moment of 'downtime' after regular periods, say every 2 hours. What's causing this? For whatever reasons, the splitters seem to be unable to work fast enough to maintain a 'ready to send' cache. So at times, there is little work going out. Thus, the 'feathering' seen on the Cricket graph. Maybe that's by design, something they did to make the ageing Bruno's life a bit less stressful. I think it's more of a sign of some other issue. The master DB queries per second graph shows there's been a lot of activity there since the last outage. In the past if the number of Queries per second is over around 600, the splitters get bogged down. And that has pretty much been the case since the last outage- it's been averaging over 800. ____________ Grant Darwin NT.
	ID: 1121208 ·

Josef W. Segur Volunteer developer Volunteer tester Send message Joined: 30 Oct 99 Posts: 3969 Credit: 937,921 RAC: 170	Message 1121295 - Posted: 25 Jun 2011, 3:45:05 UTC - in response to Message 1121208.
	... The master DB queries per second graph shows there's been a lot of activity there since the last outage. In the past if the number of Queries per second is over around 600, the splitters get bogged down. And that has pretty much been the case since the last outage- it's been averaging over 800. With the replica BOINC database off, all queries have to be handled by the master. Carolyn can handle a few thousand per second, but perhaps there's enough extra delay on each query to affect other processes. Joe
	ID: 1121295 ·

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Message boards : Technical News : Monolith (Jun 14 2011)

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