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https://issues.apache.org/jira/browse/SOLR-4479?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14312336#comment-14312336
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Shalin Shekhar Mangar commented on SOLR-4479:
---------------------------------------------
{quote}
But this has me thinking about whether there's a bigger bug at play here?
Specifically, if Solr is in distributed mode, then the shards.qt parameter
should default to the same path as the top-level request handler (/tvrh in this
example). I tried the same with the /spell request handler and same result, the
underlying distributed shard requests all went to /select and since the
SpellChecking component is not wired into /select by default, there's really no
spell checking happening on each shard.
In other words, if you send a distributed query to /tvrh without the shards.qt
parameter, then the underlying shard requests are sent to /select and not /tvrh
on each replica. The work-around is simple but seems like the default behavior
should be to work without shards.qt???
{quote}
I think that makes sense.
The reason behind having shards.qt is that in old-style distributed search,
people would put shards=abc,xyz,pqr in the defaults section of the request
handler and therefore they need shards.qt to send the non-distrib query to a
different handler which does not hard code the shards parameter. So anyone who
has this situation currently should already specify a shards.qt parameter
different than qt. So defaulting shards.qt the same as qt makes sense.
> TermVectorComponent NPE when running Solr Cloud
> -----------------------------------------------
>
> Key: SOLR-4479
> URL: https://issues.apache.org/jira/browse/SOLR-4479
> Project: Solr
> Issue Type: Bug
> Affects Versions: 4.1
> Reporter: Vitali Kviatkouski
> Assignee: Timothy Potter
>
> When running Solr Cloud (just simply 2 shards - as described in wiki), got NPE
> java.lang.NullPointerException
> at
> org.apache.solr.handler.component.TermVectorComponent.finishStage(TermVectorComponent.java:437)
> at
> org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:317)
> at
> org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:135)
> at
> org.apache.solr.core.RequestHandlers$LazyRequestHandlerWrapper.handleRequest(RequestHandlers.java:242)
> at org.apache.solr.core.SolrCore.execute(SolrCore.java:1816)
> at
> org.apache.solr.servlet.SolrDispatchFilter.execute(SolrDispatchFilter.java:448)
> at
> org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:269)
> at
> org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1307)
> at
> org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:453)
> at
> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:137)
> at
> org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:560)
> at
> org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:231)
> at
> org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1072)
> at
> org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:382)
> at
> org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:193)
> at
> org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1006)
> at
> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135)
> at
> org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:255)
> ..... Skipped
> To reproduce, follow the guide in wiki
> (http://wiki.apache.org/solr/SolrCloud), add some documents and then request
> http://localhost:8983/solr/collection1/tvrh?q=*%3A*
> If I include term search vector component in search handler, I get (on second
> shard):
> SEVERE: null:java.lang.NullPointerException
> at
> org.apache.solr.handler.component.TermVectorComponent.process(TermVectorComponent.java:321)
> at
> org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:206)
> at
> org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:129)
> at org.apache.solr.core.SolrCore.execute(SolrCore.java:1699)
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