Hi Emir,

I access the admin console through the ELB. I do NOT see any replication errors 
in the new Slave's logs. I also double checked to make sure the connectivity 
between the master and slaves exist. The only error I see in the new Slave log 
is what I shared originally.

Thanks,
Zafar.



-----Original Message-----
From: Emir Arnautović [mailto:emir.arnauto...@sematext.com] 
Sent: Tuesday, August 28, 2018 2:55 AM
To: solr-user@lucene.apache.org
Subject: Re: Issue with adding an extra Solr Slave

Hi Zafar,
How do you access admin console? Through ELB or you see this behaviour when 
accessing admin console of a new slave? Do you see any replication related 
errors in new slave’s logs? Did you check connectivity of a new slave and 
master nodes?

Thanks,
Emir
--
Monitoring - Log Management - Alerting - Anomaly Detection Solr & Elasticsearch 
Consulting Support Training - http://sematext.com/



> On 27 Aug 2018, at 16:52, Zafar Khurasani <zafar.khuras...@rentacenter.com> 
> wrote:
> 
> Hi,
> 
> I'm running Solr 5.3 in one of our applications. Currently, we have 
> one Solr Master and one Solr slave running on AWS EC2 instances. I'm 
> trying to add an additional Solr slave. I'm using an Elastic 
> LoadBalancer (ELB) in front of my Slaves. I see the following error in 
> the logs after adding the second slave,
> 
> 
> java version "1.8.0_121"
> 
> Solr version: 5.3.0 1696229
> 
> 
> org.apache.solr.common.SolrException: Core with core name [xxx-xxx-xxxx] does 
> not exist.
>        at 
> org.apache.solr.handler.admin.CoreAdminHandler.handleReloadAction(CoreAdminHandler.java:770)
>        at 
> org.apache.solr.handler.admin.CoreAdminHandler.handleRequestInternal(CoreAdminHandler.java:240)
>        at 
> org.apache.solr.handler.admin.CoreAdminHandler.handleRequestBody(CoreAdminHandler.java:194)
>        at 
> org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:143)
>        at 
> org.apache.solr.servlet.HttpSolrCall.handleAdminRequest(HttpSolrCall.java:675)
>        at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:443)
>        at 
> org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:210)
>        at 
> org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:179)
>        at 
> org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
>        at 
> org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:585)
>        at 
> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
>        at 
> org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:577)
>        at 
> org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:223)
>        at 
> org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1127)
>        at 
> org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515)
>        at 
> org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)
>        at 
> org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1061)
>        at 
> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
>        at 
> org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:215)
>        at 
> org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:110)
>        at 
> org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)
>        at org.eclipse.jetty.server.Server.handle(Server.java:499)
>        at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:310)
>        at 
> org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:257)
>        at 
> org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:540)
>        at 
> org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635)
>        at 
> org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555)
>        at java.lang.Thread.run(Thread.java:745)
> 
> 
> Also, when I hit the Solr Admin UI, I'm able to see my core infrequently. I 
> have to refresh the page multiple times to be able to see it.  What's the 
> right way to add a slave to my existing setup?
> 
> FYI - the Solr Replication section in solrconfig.xml is exactly the same for 
> both the Slaves.
> 
> Thanks,
> Zafar Khurasani
> 

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