Hello again, since 10 days it works well. The system swaps but the query returns results in 3.2 seconds. All I have changed (besides the continous logging whether the machine starts swapping) was to assign 4 CPU-cores (instead of 1) to the machine. I will continue to observe the behaviour of the database, but untill now it seems to me that the problem is solved.
best regards Christoph Am Montag, 25. Juli 2016 13:26:38 UTC+2 schrieb Wilfried Gösgens: > > Hi Christoph, > can you have a look at whether the system starts swapping? > You can use smem (as found here: > http://www.cyberciti.biz/faq/linux-which-process-is-using-swap/ ) to > inspect what arangod is doing. > > The collection size doesn't change between the successfull attempts and > the restarts? > > Cheers, > Willi > > On Monday, July 25, 2016 at 10:24:59 AM UTC+2, Christoph Engel wrote: >> >> Hi, >> >> I use ArangoDB v3.0.3 under debian 8 in a LXC-container continuously >> importing some data (less than 1 MB per minute). After I've started the >> container everything runs fine. >> But after 2-3 days AQL-queries running at most 4 seconds after a restart >> of ArangoDB become very slow (Running 15 Minutes without any result). >> The data import does not seem to be affected and is still working. If I >> cancel and start a query a few times again the database crashes. >> After a restart of ArangoDB (only the DB not the LXC-container) >> everything runs fine again for the next 2-3 days. >> >> On the disc 20 GB space is available, the container has access to 6 GB >> RAM and 2 GB swap. >> The load of the machine is growing to 2 (not extremely high) and arangodb >> is the process with the highest mem-usage. >> >> I've set the logging to debug but I can't find any reason for the >> slowness of the AQL-queries or why the database crashes in the arangodb-log >> or in the systlog. >> Is there any other way to get informations about what happens to the >> arangod-deamon so that it finally crashes? >> >> best regards >> >> Christoph >> > -- You received this message because you are subscribed to the Google Groups "ArangoDB" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
