Hello Paul, The error that you are seeing tells you that your Solr instance didn't have enough memory to run certain operation - for example indexing or querying. Have a look at this page of the documentation: https://solr.apache.org/guide/6_6/jvm-settings.html#JVMSettings-ChoosingMemoryHeapSettings <https://solr.apache.org/guide/6_6/jvm-settings.html#JVMSettings-ChoosingMemoryHeapSettings> - though it is for version 6.6 it is valuable for Solr 5.2.1 as well. You may just not have enough memory given to the JVM. I would start with that.
Check your Solr logs to find out the problematic part and when it happens. If that happens during the query time you will usually find longer than usual running queries. That's a good place to start. --- Regards, Rafał Kuć > On 25 Jun 2021, at 10:52, Paul, Lulu <lulu.p...@bl.uk> wrote: > > Hi team, > > We are running SOLR 5.2.1 version and this is the error we receive on our > LIVE instance. I am relatively new to the project and still learning about > SOLR. > > org.apache.solr.common.SolrException; null:java.lang.RuntimeException: > java.lang.OutOfMemoryError: Java heap space > > Please can you suggest what should be checked and a possible resolution to > this problem ? > > Below is the into from SOLR UI Dashboard on system space : > > > > Much appreciate your advice > Thank you, best wishes Lulu > > > > ****************************************************************************************************************** > Experience the British Library online at www.bl.uk <http://www.bl.uk/> > The British Library’s latest Annual Report and Accounts : > www.bl.uk/aboutus/annrep/index.html > <http://www.bl.uk/aboutus/annrep/index.html> > Help the British Library conserve the world's knowledge. Adopt a Book. > www.bl.uk/adoptabook <http://www.bl.uk/adoptabook> > The Library's St Pancras site is WiFi - enabled > ***************************************************************************************************************** > The information contained in this e-mail is confidential and may be legally > privileged. It is intended for the addressee(s) only. If you are not the > intended recipient, please delete this e-mail and notify the postmas...@bl.uk > <mailto:postmas...@bl.uk> : The contents of this e-mail must not be disclosed > or copied without the sender's consent. > The statements and opinions expressed in this message are those of the author > and do not necessarily reflect those of the British Library. The British > Library does not take any responsibility for the views of the author. > ***************************************************************************************************************** > Think before you print
