Request to be added to the ContributorsGroup

2013-07-11 Thread Kumar Limbu 
Hi,

My username is KumarLImbu and I would like to be added to the Contributors
Group.

Could somebody please help me?

Best Regards,
Kumar

Why is SolrCloud doing a full copy of the index?

2013-05-04 Thread Kumar Limbu 
We have Solr setup on 3 machines with only a single shard. We are using Solr
4.0 and currently have around 7 Million documents in our index. The size of
our index is around 25 GB. We have a zookeeper ensemble of 3 zookeeper
instances.
 
Let's call the servers in our setup server (A), (B) and (C). All updates to
Solr goes via server (C). Searches are performed on server (A) and (B). The
updates are normally propagated incrementally from server (C) to the other 2
servers.  Intermittently we have noted that the servers (A) and (B) makes a
full copy of the index from server (C). This is not ideal because when this
happens performance suffers. This occurs quite randomly and can occur on any
of the other 2 nodes i.e. (A) and (B). 
 
On the server (C), which is the leader, we see errors like the following .We
suspect this might be the reason why a full index copy occurs in the other
nodes but we haven't been able to find out why this error is occurring.
There is no connectivity issue with the servers.
 
See the stacktrace below:

SEVERE: shard update error StdNode:
http://serverA/solr/rn0/:org.apache.solr.client.solrj.SolrServerException:
IOException occured when talking to server at: http:// serverA/solr/rn0
at
org.apache.solr.client.solrj.impl.HttpSolrServer.request(HttpSolrServer.java:413)
at
org.apache.solr.client.solrj.impl.HttpSolrServer.request(HttpSolrServer.java:181)
at
org.apache.solr.update.SolrCmdDistributor$1.call(SolrCmdDistributor.java:335)
at
org.apache.solr.update.SolrCmdDistributor$1.call(SolrCmdDistributor.java:1)
at
java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:439)
at
java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
Caused by: org.apache.http.NoHttpResponseException: The target server failed
to respond
at
org.apache.http.impl.conn.DefaultResponseParser.parseHead(DefaultResponseParser.java:101)
at
org.apache.http.impl.io.AbstractMessageParser.parse(AbstractMessageParser.java:252)
at
org.apache.http.impl.AbstractHttpClientConnection.receiveResponseHeader(AbstractHttpClientConnection.java:282)
at
org.apache.http.impl.conn.DefaultClientConnection.receiveResponseHeader(DefaultClientConnection.java:247)
at
org.apache.http.impl.conn.AbstractClientConnAdapter.receiveResponseHeader(AbstractClientConnAdapter.java:216)
at
org.apache.http.protocol.HttpRequestExecutor.doReceiveResponse(HttpRequestExecutor.java:298)
at
org.apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecutor.java:125)
at
org.apache.http.impl.client.DefaultRequestDirector.tryExecute(DefaultRequestDirector.java:647)
at
org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:464)
at
org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:820)
at
org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:754)
at
org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:732)
at
org.apache.solr.client.solrj.impl.HttpSolrServer.request(HttpSolrServer.java:352)
... 11 more

If anyone can help us troubleshoot this problem we will really appreciate
the help. If there are any questions regarding our setup or further
information regarding the error, please let me know. 




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Re: Why is SolrCloud doing a full copy of the index?

2013-05-05 Thread Kumar Limbu 
Thanks for the replies. It is really appreciated.

Based on the replies it seems like upgrading to the latest version of Solr
is something that will probably resolve this issue.

We are also update quite frequently. We update every 5 minutes. We will try
and set this to higher interval and see if that helps.

We will also try increasing the servlet timeout and see if that resolves the
issue.

Among the other suggestions we already tried increasing the zkClientTimeout
from 15 seconds to 30 seconds but that didn't seem to help. What do you
recommend is a good value to try?

Few more details about our system:
we are running this on a system with 16GB of RAM. We are using 64 bit server
and we also use SSD disks.

Also, since we are already using 4.0 in our production environment with the
aforementioned 3 servers setup, how should we go about upgrading to the
latest version (4.3)? Do we need to do a full reindex of our data or is the
index compatible between these versions? 

We will try out the suggestions and will post later if any of them help us
resolve the issue.

Again, thanks for the reply.



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