Hello Alan, Basically to finish the initial indexing, media-filter faster. Probably an overkill.
Thanks. On Friday, August 12, 2016 at 10:20:49 AM UTC+3, Alan Orth wrote: > > I'm glad you solved it, Evelthon. > > I guess it depends on your OS and how you have Tomcat running. In > Ubuntu we set JAVA_OPTS in /etc/default/tomcat7, but CentOS's Tomcat > is surely different. By the way, there's more discussion about tuning > DSpace (including JAVA_OPTS and CATALINA_OPTS) on the wiki: > > https://wiki.duraspace.org/display/DSDOC5x/Performance+Tuning+DSpace > > I still wonder why your JVM settings are so highly tweaked. Most > people don't need to adjust those, and unless you really know you need > them, I'd say to leave them off. Remember, "premature optimization is > the root of all evil" ;) > > Cheers, > > On Fri, Aug 12, 2016 at 9:59 AM, Evelthon Prodromou > <prodromou...@ucy.ac.cy <javascript:>> wrote: > > Hello Luigi, > > > > CATALINA_OPTS did it. All works good now. Seems like solr was choaking > and > > caused slow loading on the UI. > > > > Curious though, shouldn't it fallback to java_opts? > > > > > > In any case, thank you. > > > > Evelthon > > > > > > On Thursday, August 11, 2016 at 1:01:34 PM UTC+3, Luigi Andrea > Pascarelli > > wrote: > >> > >> Hi, > >> > >> as far as I know DSpace doesn't need a big amount of memory. For the > first > >> step you can try to setup CATALINA_OPTS to > >> > >> CATALINA_OPTS: -Xms1024m -Xmx2048m -XX:MaxPermSize=256m > >> -Dfile.encoding=UTF-8 > >> > >> And as Alan highlighted you could use JAVA_OPTS with less memory. > >> > >> Second step you could try to check if the I/O is the real issue. Maybe > >> POSTGRES and SOLR and TOMCAT write and read on the same node and so you > can > >> benefits from separate them (or one of them) on differents volumes. > >> > >> Let me know. > >> > >> Regards, > >> > >> Luigi Andrea > >> > >> > >> Il 11/08/2016 11:46, Evelthon Prodromou ha scritto: > >> > >> The server has 32GB, postgresql on different box. I don't think it's a > RAM > >> issue. > >> > >> I am wondering if it is a solr issue. I don't have tomcat running as > user > >> dspace. Instead, I change ownership in [dspace]/solr to dspace:tomcat > and > >> gave rw rights to both user and group. > >> > >> Thanks > >> > >> > >> > >> On Thursday, August 11, 2016 at 12:33:05 PM UTC+3, Alan Orth wrote: > >>> > >>> Hi, > >>> > >>> From your JAVA_OPTS I see you are allocating 4096 + 2048 megabytes of > >>> RAM to Tomcat right from the start. How much memory does your server > >>> have? This means your host must have AT LEAST 6GB of RAM just for > >>> Tomcat, let alone PostgreSQL, Solr, and the rest of the operating > >>> system. I wouldn't be surprised if you are encountering poor > >>> performance due to swapping. > >>> > >>> For reference, we run a fairly large DSpace instance with ~55,000 > >>> items and a decent amount of traffic and these are our JAVA_OPTS: > >>> > >>> -Djava.awt.headless=true -Xms3072m -Xmx3072m -XX:MaxPermSize=256m > >>> -XX:+UseConcMarkSweepGC -Dfile.encoding=UTF-8 > >>> > >>> Our server has 8GB of physical memory. Unless you know you need all > >>> those JVM tweaks, I'd start by simplifying your JAVA_OPTS to something > >>> more simple (for testing at least). > >>> > >>> Regards, > >>> > >>> On Wed, Aug 10, 2016 at 7:03 PM, Evelthon Prodromou > >>> <prodromou...@ucy.ac.cy> wrote: > >>> > Hello, > >>> > > >>> > > >>> > I seem to be having an issue with tomcat. It takes ~38+ seconds to > >>> > load > >>> > pages. I believe it's tomcat since i notice shell scripts ( > >>> > [dspace]/bin/dspace ) executing slow when tomcat is started, and > very > >>> > fast > >>> > (normal I presume) when tomcat is stopped. > >>> > > >>> > > >>> > The system is a new installation of DSpace 5.5 on CentOS7. Data and > >>> > sql > >>> > migrated from an 1.7.0 installation. > >>> > > >>> > tomcat.conf includes the following JAVA_OPTS > >>> > > >>> > JAVA_OPTS="-Xmx4096m -Xms4096m -XX:MaxPermSize=2048m > >>> > -Dfile.encoding=UTF-8 > >>> > -XX:MaxHeapFreeRatio=70 -XX:+UseConcMarkSweepGC > >>> > -XX:+CMSPermGenSweepingEnabled -XX:+CMSClassUnloadingEnabled" > >>> > > >>> > index-discovery was executed and discovery facets show up. > >>> > > >>> > > >>> > Someone please point me to the right direction to investigate. > >>> > > >>> > > >>> > Thank you, > >>> > > >>> > > >>> > Evelthon > >>> > > >>> > -- > >>> > You received this message because you are subscribed to the Google > >>> > Groups > >>> > "DSpace Technical Support" group. > >>> > To unsubscribe from this group and stop receiving emails from it, > send > >>> > an > >>> > email to dspace-tech...@googlegroups.com. > >>> > To post to this group, send email to dspac...@googlegroups.com. > >>> > Visit this group at https://groups.google.com/group/dspace-tech. > >>> > For more options, visit https://groups.google.com/d/optout. > >>> > >>> > >>> > >>> -- > >>> Alan Orth > >>> alan...@gmail.com > >>> https://englishbulgaria.net > >>> https://alaninkenya.org > >>> https://mjanja.ch > >>> "In heaven all the interesting people are missing." ―Friedrich > Nietzsche > >>> GPG public key ID: 0x8cb0d0acb5cd81ec209c6cdfbd1a0e09c2f836c0 > >> > >> -- > >> You received this message because you are subscribed to the Google > Groups > >> "DSpace Technical Support" group. > >> To unsubscribe from this group and stop receiving emails from it, send > an > >> email to dspace-tech...@googlegroups.com. > >> To post to this group, send email to dspac...@googlegroups.com. > >> Visit this group at https://groups.google.com/group/dspace-tech. > >> For more options, visit https://groups.google.com/d/optout. > >> > >> > >> -- > >> Luigi Andrea Pascarelli > >> > >> DSpace Committer and DSpace-CRIS Lead Developer > >> > >> 4Science, www.4science.it (an Itway Group Company) > >> > >> office: Via Edoardo D'Onofrio 304, 00155 Roma, Italy > >> tel: +39 333 934 1782 > >> skype: l_a_p82 > >> linkedin: luigiandreapascarelli > >> > >> ==================================== > >> Salvate un albero. Non stampate questa mail se non necessario. > >> Save a tree. Don't print this e-mail unless it's really necessary. > >> > >> DISCLAIMER: Le informazioni contenute in questo messaggio sono > >> confidenziali, possono essere protette da leggi locali, > >> e devono essere utilizzate esclusivamente dal destinatario. La > >> pubblicazione, l'utilizzo, la divulgazione, la stampa > >> o la copia non autorizzata del contenuto della presente e-mail sono > >> espressamente vietate e potenzialmente illegali. > >> Nel caso si sia ricevuto il presente messaggio per errore, si prega di > >> cancellarlo e di inviarne notifica al mittente. > >> > >> DISCLAIMER: The information contained in this message is confidential, > can > >> be legally protected by local Laws, > >> and must be exclusively used by the recipient. The publication, use, > >> distribution, printing or unauthorized copy > >> of the content of this message is strictly forbidden and it can be > >> illegal. If you received this message by mistake, > >> please destroy it and notify it to the sender. > > > > -- > > You received this message because you are subscribed to the Google > Groups > > "DSpace Technical Support" group. > > To unsubscribe from this group and stop receiving emails from it, send > an > > email to dspace-tech...@googlegroups.com <javascript:>. > > To post to this group, send email to dspac...@googlegroups.com > <javascript:>. > > Visit this group at https://groups.google.com/group/dspace-tech. > > For more options, visit https://groups.google.com/d/optout. > > > > -- > Alan Orth > alan...@gmail.com <javascript:> > https://englishbulgaria.net > https://alaninkenya.org > https://mjanja.ch > "In heaven all the interesting people are missing." ―Friedrich Nietzsche > GPG public key ID: 0x8cb0d0acb5cd81ec209c6cdfbd1a0e09c2f836c0 > -- You received this message because you are subscribed to the Google Groups "DSpace Technical Support" group. 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