A 1 Gb heap is probably too small on the master. Run with 8 Gb like the slaves.
wunder Walter Underwood wun...@wunderwood.org http://observer.wunderwood.org/ (my blog) > On Oct 24, 2018, at 10:20 PM, Bharat Yadav <bharat.ya...@amdocs.com> wrote: > > Hello Team, > > We are now a days frequently facing below issue on our SOLR Slave Nodes > related to public Class SnapPuller. > > Issue > > Master at: http://prd01slr:30000/solr/MainSystem2 > <http://prd01slr:30000/solr/MainSystem2> is not available. Index fetch > failed. Exception: Server refused connection at: > http://prd01slr:30000/solr/MainSystem2 > <http://prd01slr:30000/solr/MainSystem2> > > slroms1@prd02slr:slroms1/JEE/SolrProduct/logs/SolrDomain_SolrSlaveServer2/SolrSlaveServer2> > grep "Index fetch failed" weblogic.20181018_004904.log > 425511535 [snapPuller-14-thread-1] ERROR org.apache.solr.handler.SnapPuller > – Master at: http://prd01slr:30000/solr/MainSystem2 > <http://prd01slr:30000/solr/MainSystem2> is not available. Index fetch > failed. Exception: Server refused connection at: > http://prd01slr:30000/solr/MainSystem2 > <http://prd01slr:30000/solr/MainSystem2> > 425511535 [snapPuller-13-thread-1] ERROR org.apache.solr.handler.SnapPuller > – Master at: http://prd01slr:30000/solr/MainSystem1 > <http://prd01slr:30000/solr/MainSystem1> is not available. Index fetch > failed. Exception: Server refused connection > at:http://prd01slr:30000/solr/MainSystem1 > <http://prd01slr:30000/solr/MainSystem1> > 598311531 [snapPuller-14-thread-1] ERROR org.apache.solr.handler.SnapPuller > – Master at: http://prd01slr:30000/solr/MainSystem2 > <http://prd01slr:30000/solr/MainSystem2> is not available. Index fetch > failed. Exception: Server refused connection > at:http://prd01slr:30000/solr/MainSystem2 > <http://prd01slr:30000/solr/MainSystem2> > > Note – > MainSystem1 and MainSystem2 are the Cores in our account. > When we face this issue sometime we have to bounce our SOLR JVM’s > and sometimes automatically it recovers and we don’t need to do any bounce. > > SetUp of SOLR In Account > > · SOLR Version > > <image007.png> > > · We are using SOLR with 1 master and 2 Slave configuration. > > a) Master is running with - “-Xms1G -Xmx1G -XX:MaxPermSize=256m” > b) Slaves are running with – “-Xms8G -Xmx8G -XX:MaxPermSize=1024m” > > · SOLR ear is deployed on all 3 individual Weblogic instances and it > is same across. > · Indexing is getting done on Master and then we have replication + > polling enabled on Slave JVM’s to have it in sync with Master at any time And > all querying are being handled by SOLR Slaves only. > · For Polling we have defined the timing of 60 sec as highlighted > below on Slave solr xml. (I am attaching solr xml configured to slave and > master for your reference) > > <requestHandler class="solr.ReplicationHandler" name="/replication"> > <!-- > To enable simple master/slave replication, uncomment one of the > sections below, depending on whether this solr instance should be > the "master" or a "slave". If this instance is a "slave" you will > also need to fill in the masterUrl to point to a real machine. > --> > > <lst name="master"> > <str name="enable">${enable.master:false}</str> > <str name="replicateAfter">commit</str> > <str name="replicateAfter">startup</str> > <str name="confFiles">schema.xml,stopwords.txt</str> > </lst> > > > <lst name="slave"> > <str name="enable">true</str> > <str name="masterUrl">http://xxxxxx:xxxxx/solr/MainSystem2</str> > <http://xxxxxx:xxxxx/solr/MainSystem2</str>> > <str name="pollInterval">00:00:60</str> > </lst> > > </requestHandler> > > <image003.png> > · We have GC enabled on jvm’s too but we didn’t find anything > suspicious there. If you need gc logs let us know. > > Connectivity Check > > · Slave 1 – > <image004.png> > > · Slave 2 – > <image005.png> > > Statistics about the Core > > <image006.png> > > > Thanks and Regards > Bharat Yadav > Infra INT > Amdocs Intelligent Operations, SI&O > India Mob +91-9873333464 (WhatsApp only) > Chile Mob +56-998022829 > > <image001.jpg> > <image002.png> > > > “Amdocs’ email platform is based on a third-party, worldwide, cloud-based > system. Any emails sent to Amdocs will be processed and stored using such > system and are accessible by third party providers of such system on a > limited basis. Your sending of emails to Amdocs evidences your consent to the > use of such system and such processing, storing and access”. > <SOLR_MASTER_Config.txt><SOLR_SLAVE_Config.txt>
