1. you can jstack <PID> to find it out. 2. It might create a thread, I don't know. 3. SolrClient is definitely a subject for heavy reuse.
On Tue, Feb 12, 2019 at 5:16 PM Martin Frank Hansen (MHQ) <m...@kmd.dk> wrote: > Hi Mikhail, > > I am using Solrj but think I might have found the problem. > > I am doing a atomicUpdate on existing documents, and found out that I > create a new SolrClient for each document. I guess this is where all the > threads are coming from. Is it correct that when creating a SolrClient, I > also create a new thread? > > SolrClient solr = new HttpSolrClient.Builder(urlString).build(); > > Thanks > > -----Original Message----- > From: Mikhail Khludnev <m...@apache.org> > Sent: 12. februar 2019 15:09 > To: solr-user <solr-user@lucene.apache.org> > Subject: Re: unable to create new threads: out-of-memory issues > > Hello, Martin. > How do you index? Where did you get this error? > Usually it occurs in custom code with many new Thread() calls and usually > healed with thread poling. > > On Tue, Feb 12, 2019 at 3:25 PM Martin Frank Hansen (MHQ) <m...@kmd.dk> > wrote: > > > Hi, > > > > I am trying to create an index on a small Linux server running > > Solr-7.5.0, but keep running into problems. > > > > When I try to index a file-folder of roughly 18 GB (18000 files) I get > > the following error from the server: > > > > java.lang.OutOfMemoryError: unable to create new native thread. > > > > From the server I can see the following limits: > > > > User$ ulimit -a > > core file size (blocks, -c) 0 > > data seg size (kbytes, -d) unlimited > > scheduling priority (-e) 0 > > file size (blocks, -f) > unlimited > > pending signals (-i) 257568 > > max locked memory (kbytes, -l) 64 > > max memory size (kbytes, -m) unlimited > > open files (-n) 1024 > > pipe size (512 bytes, -p) 8 > > POSIX message queues (bytes, -q) 819200 > > real-time priority (-r) 0 > > stack size (kbytes, -s) 8192 > > cpu time (seconds, -t) unlimited > > max user processes (-u) 257568 > > virtual memory (kbytes, -v) unlimited > > file locks (-x) unlimited > > > > I do not see any limits on threads only on open files. > > > > I have added a autoCommit of a maximum of 1000 documents, but that did > > not help. How can I increase the thread limit, or is there another way > > of solving this issue? Any help is appreciated. > > > > Best regards > > > > Martin > > > > Beskyttelse af dine personlige oplysninger er vigtig for os. Her > > finder du KMD’s > > Privatlivspolitik<http://www.kmd.dk/Privatlivspolitik>, der fortæller, > hvordan vi behandler oplysninger om dig. > > > > Protection of your personal data is important to us. Here you can read > > KMD’s Privacy Policy<http://www.kmd.net/Privacy-Policy> outlining how > > we process your personal data. > > > > Vi gør opmærksom på, at denne e-mail kan indeholde fortrolig information. > > Hvis du ved en fejltagelse modtager e-mailen, beder vi dig venligst > > informere afsender om fejlen ved at bruge svarfunktionen. Samtidig > > beder vi dig slette e-mailen i dit system uden at videresende eller > kopiere den. > > Selvom e-mailen og ethvert vedhæftet bilag efter vores overbevisning > > er fri for virus og andre fejl, som kan påvirke computeren eller > > it-systemet, hvori den modtages og læses, åbnes den på modtagerens > > eget ansvar. Vi påtager os ikke noget ansvar for tab og skade, som er > > opstået i forbindelse med at modtage og bruge e-mailen. > > > > Please note that this message may contain confidential information. If > > you have received this message by mistake, please inform the sender of > > the mistake by sending a reply, then delete the message from your > > system without making, distributing or retaining any copies of it. > > Although we believe that the message and any attachments are free from > > viruses and other errors that might affect the computer or it-system > > where it is received and read, the recipient opens the message at his or > her own risk. > > We assume no responsibility for any loss or damage arising from the > > receipt or use of this message. > > > > > -- > Sincerely yours > Mikhail Khludnev > -- Sincerely yours Mikhail Khludnev
