Hi Erik, Could you inspect following files /var/log/syslog and /var/log/kern.log using grep for example grep -i orient /var/log/kern.log and send us results.
On Sat, Apr 9, 2016 at 1:35 AM Erik Pragt <[email protected]> wrote: > Thanks! I'm using Ubuntu, I think 14.x > > On 09 Apr 2016, at 00:55, Andrey Lomakin <[email protected]> wrote: > > Hi Erik, > If system error happens (that is the only reason which we can think why it > was shutted down without any exceptions) your OS log should contain > information about > that error. > Which OS do you use ? > > On Fri, Apr 8, 2016 at 3:48 PM Erik Pragt <[email protected]> wrote: > >> Hi Luca, >> >> I'm sorry, that was an error on my part: I changed that after the crash, >> before the crash it was on a very low setting, around 400. I'll change it >> back anyway! >> >> >> Erik >> >> On 08 Apr 2016, at 20:10, Luca Garulli <[email protected]> wrote: >> >> Hi Erik, >> Do you have 2GB of RAM on that server? if this is the case, you cannot >> have 8GB of RAM for the Diskcache: >> >> -Dstorage.diskCache.bufferSize=8192 >> >> So this must be the reason. This is the formula: >> >> diskcache + heap < available ram >> >> So with 1,5GB of free RAM, try these settings: >> >> MAXHEAP=-Xmx700m and -Dstorage.diskCache.bufferSize=512 >> >> Best Regards, >> >> Luca Garulli >> >> Founder & CEO >> OrientDB <http://orientdb.com/> >> >> >> >> On 8 April 2016 at 10:14, Erik Pragt <[email protected]> wrote: >> >>> Hi Luca, >>> >>> Thanks for your response. >>> >>> - I'm running on Digital Ocean, 2 core 2 gig version. >>> - Around 1500 mb. >>> - What kind of swap do you mean? On an OS level? >>> >>> Thanks for the help! >>> Erik >>> >>> On Friday, April 8, 2016 at 5:39:06 PM UTC+10, l.garulli wrote: >>>> >>>> Hi Erik, >>>> >>>> If OrientDB dies with no log, it means the OS killed it. The most >>>> common reason is the out of memory. >>>> >>>> Look at: >>>> http://stackoverflow.com/questions/726690/who-killed-my-process-and-why >>>> >>>> A few questions for you: >>>> >>>> - How much physical RAM do you have on that server and >>>> - How much is available before you start OrientDB server? >>>> - Did you configure any swap for your server? >>>> >>>> >>>> Best Regards, >>>> >>>> Luca Garulli >>>> Founder & CEO >>>> OrientDB <http://orientdb.com/> >>>> >>>> >>>> On 8 April 2016 at 09:34, Luigi Dell'Aquila <[email protected]> >>>> wrote: >>>> >>>>> Hi Erik, >>>>> >>>>> It's hard to give you an answer here, this is the first report we have >>>>> from a system that crashes without emitting any logs at all. >>>>> In other cases, when we had an unexpected crash with few information, >>>>> it was because of some OS related procedures (eg. process kill under heavy >>>>> load), but also in that case we had a log stating that the server was >>>>> killed. >>>>> >>>>> Could you please share your logs? Maybe we will find some hints in the >>>>> history >>>>> >>>>> Thanks >>>>> >>>>> Luigi >>>>> >>>>> >>>>> 2016-04-08 2:18 GMT+02:00 Erik Pragt <[email protected]>: >>>>> >>>>>> Btw, running OrientDB 2.1.9. >>>>>> >>>>>> >>>>>> On Friday, April 8, 2016 at 10:05:33 AM UTC+10, Erik Pragt wrote: >>>>>>> >>>>>>> Hi all, >>>>>>> >>>>>>> As the question title suggests, our OrientDB database crashed today. >>>>>>> We got notified by our monitoring server that our sites aren't accepting >>>>>>> any requests anymore, which was quickly traced to OrientDB being >>>>>>> unavailable, i.e., not running anymore. >>>>>>> >>>>>>> However, when checking the logs (orientdb.err/orientdb.log), there >>>>>>> was no indication at all of any crash. What can I do to investigate this >>>>>>> issue, and, even better, prevent OrientDB from crashing again? This >>>>>>> isn't >>>>>>> the first time OrientDB crashes, but usually it's with an OutOfMemory >>>>>>> exception, which we fixed(?) by giving it more memory. Currently, the DB >>>>>>> hardly does anything (1 request per 10 seconds?), and we're a bit >>>>>>> worried >>>>>>> that once we do get some requests, that OrientDB might crash more often. >>>>>>> >>>>>>> Our current settings to run OrientDB look like this: >>>>>>> >>>>>>> ORIENTDB_SETTINGS="-Dprofiler.enabled=true" >>>>>>> JAVA_OPTS_SCRIPT="-Djna.nosys=true -XX:+HeapDumpOnOutOfMemoryError >>>>>>> -Djava.awt.headless=true -Dfile.encoding=UTF8 -Drhino.opt.level=9" >>>>>>> >>>>>>> # ORIENTDB MAXIMUM HEAP. USE SYNTAX -Xmx<memory>, WHERE <memory> HAS >>>>>>> THE TOTAL MEMORY AND SIZE UNIT. EXAMPLE: -Xmx512m >>>>>>> MAXHEAP=-Xmx1024m >>>>>>> # ORIENTDB MAXIMUM DISKCACHE IN MB, EXAMPLE, ENTER >>>>>>> -Dstorage.diskCache.bufferSize=8192 FOR 8GB >>>>>>> #MAXDISKCACHE="" >>>>>>> MAXDISKCACHE="-Dstorage.diskCache.bufferSize=8192" >>>>>>> >>>>>>> If we need to provide some more information, please let me know. >>>>>>> >>>>>>> Kind regards, >>>>>>> >>>>>>> Erik Pragt >>>>>>> >>>>>> -- >>>>>> >>>>>> --- >>>>>> You received this message because you are subscribed to the Google >>>>>> Groups "OrientDB" 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. >>>>>> >>>>> >>>>> -- >>>>> >>>>> --- >>>>> You received this message because you are subscribed to the Google >>>>> Groups "OrientDB" 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. >>>>> >>>> >>>> -- >>> >>> --- >>> You received this message because you are subscribed to the Google >>> Groups "OrientDB" 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. >>> >> >> -- >> >> --- >> >> You received this message because you are subscribed to a topic in the >> Google Groups "OrientDB" group. >> To unsubscribe from this topic, visit >> https://groups.google.com/d/topic/orient-database/Xith1NqSX0k/unsubscribe >> . >> To unsubscribe from this group and all its topics, send an email to >> [email protected]. >> >> >> For more options, visit https://groups.google.com/d/optout. >> >> -- >> >> --- >> You received this message because you are subscribed to the Google Groups >> "OrientDB" 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. >> > -- > Best regards, > Andrey Lomakin, R&D lead. > OrientDB Ltd > > twitter:@Andrey_Lomakin linkedin:https://ua.linkedin.com/in/andreylomakin > > -- > > --- > You received this message because you are subscribed to a topic in the > Google Groups "OrientDB" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/orient-database/Xith1NqSX0k/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > [email protected]. > For more options, visit https://groups.google.com/d/optout. > > -- > > --- > You received this message because you are subscribed to the Google Groups > "OrientDB" 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. > -- Best regards, Andrey Lomakin, R&D lead. OrientDB Ltd twitter:@Andrey_Lomakin linkedin:https://ua.linkedin.com/in/andreylomakin -- --- You received this message because you are subscribed to the Google Groups "OrientDB" 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.
