Hi Amarnath, It looks like you’ve set the core to not load on startup via the “loadOnStartup=false“ property. Your response also shows that the core is not loaded, “<str name="isLoaded">false</str>“.
I’m not really sure how to load cores after a restart, but possibly using the Core Admin Reload would do it (https://cwiki.apache.org/confluence/display/solr/CoreAdmin+API#CoreAdminAPI-RELOAD). Best of luck, Trey From: Amarnath palavalli [mailto:pamarn...@gmail.com] Sent: Friday, April 07, 2017 3:20 PM To: solr-user@lucene.apache.org Subject: Solr with HDFS on AWS S3 - Server restart fails to load the core Hello, I configured Solr to use HDFS, which in turn configured to use S3N. I used the information from this issue to configure: https://issues.apache.org/jira/browse/SOLR-9952 Here is the command I have used to start the Solr with HDFS: bin/solr start -Dsolr.directoryFactory=HdfsDirectoryFactory -Dsolr.lock.type=hdfs -Dsolr.hdfs.home=s3n://amar-hdfs/solr -Dsolr.hdfs.confdir=/usr/local/Cellar/hadoop/2.7.3/libexec/etc/hadoop -DXX:MaxDirectMemorySize=2g I am able to create a core, with the following properties: #Written by CorePropertiesLocator #Thu Apr 06 23:08:57 UTC 2017 name=amar-s3 loadOnStartup=false transient=true configSet=base-config I am able to ingest messages into Solr and also query the content. Everything seems to be fine until this stage and I can see the data dir on S3. However, the problem is when I restart the Solr server, that is when I see the core not loaded even when accessed/queried against it. Here is the admin API to get all cores gives: <response> <lst name="responseHeader"> <int name="status">0</int> <int name="QTime">617</int> </lst> <lst name="initFailures"/> <lst name="status"> <lst name="aggregator-core">...</lst> <lst name="amar-s3"> <str name="name">amar-s3</str> <str name="instanceDir"> /Users/apalavalli/solr/solr-deployment/server/solr/amar-s3 </str> <str name="dataDir">data/</str> <str name="config">solrconfig.xml</str> <str name="schema">schema.xml</str> <str name="isLoaded">false</str> </lst> </lst> </response> I don't see any issues reported in the log as well, but see this error from the UI: [Inline image 1] Not sure about the problem. This is happening when I ingest more than 40K messages in core before restarting Solr server. I am using Hadoop 2.7.3 with S3N FS. Please help me on resolving this issue. Thanks, Regards, Amar
