Aroop:
How big is your custom jar file? The name "test-plugins-aroop-all.jar"
makes me suspicious. It should be very small and should _not_ contain
any of the Solr distribution jar files, just your compiled custom
code. I'm grasping at straws a bit, but it may be that you have the
same jar files from the Solr distro and also included in your custom
jar and it's confusing the classloader. "Very small" here is on the
order of 10K given it does very little. If it's much bigger than, say,
15K it's a red flag. If you do a "jar -dvf your_custom_jar" there
should be _very_ few classes in it.
Best,
Erick
On Sun, Feb 10, 2019 at 8:33 PM Aroop Ganguly
<aroop_gang...@apple.com.invalid> wrote:
>
> [resending due to bounce warning from the other email]
>
>
> Hi Team
>
> I thought this was simple, but I am just missing something here. Any guidance
> would be very appreciated.
>
> What have I done so far:
> 1. I have created a custom querParser (class SamplePluggin extends
> QParserPlugin { ), which right now does nothing but logs an info message, and
> returns a new LuceneQParser() instance with the same parameters.
> 2. I am on solr 7.5 and I have added the path to the jar and
> referenced the plugin in the following ways in my solrconfig.xml:
>
> <lib path="/Users/aroopganguly/libs/test-plugins-aroop-all.jar" />
> <queryParser name="sampleparser"
> class="com.aroop.plugins.SamplePluggin"/>
>
> Now when I create a collection with this solrconfig, I keep getting this
> exception stack:
> I have tried debugging the live solr instance and for the life of me, I
> cannot understand why am I getting this cast exception
> 2019-02-11 03:57:10.410 ERROR (qtp1594873248-62) [c:cvp2 s:shard1
> r:core_node2 x:testCollection_shard1_replica_n1] o.a.s.h.RequestHandlerBase
> org.apache.solr.common.SolrException: Error CREATEing SolrCore
> 'testCollection_shard1_replica_n1': Unable to create core
> [testCollection_shard1_replica_n1] Caused by: class
> com.aroop.plugins.SamplePluggin
> at org.apache.solr.core.CoreContainer.create(CoreContainer.java:1087)
> at
> org.apache.solr.handler.admin.CoreAdminOperation.lambda$static$247(CoreAdminOperation.java:92)
> at
> org.apache.solr.handler.admin.CoreAdminOperation.execute(CoreAdminOperation.java:360)
> at
> org.apache.solr.handler.admin.CoreAdminHandler$CallInfo.call(CoreAdminHandler.java:395)
> at
> org.apache.solr.handler.admin.CoreAdminHandler.handleRequestBody(CoreAdminHandler.java:180)
> at
> org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:199)
> at
> org.apache.solr.servlet.HttpSolrCall.handleAdmin(HttpSolrCall.java:734)
> at
> org.apache.solr.servlet.HttpSolrCall.handleAdminRequest(HttpSolrCall.java:715)
> at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:496)
> at
> org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:377)
> at
> org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:323)
> at
> org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1634)
> at
> org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:533)
> at
> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:146)
> at
> org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548)
> at
> org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
> at
> org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:257)
> at
> org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1595)
> at
> org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:255)
> at
> org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1317)
> at
> org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:203)
> at
> org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:473)
> at
> org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1564)
> at
> org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:201)
> at
> org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1219)
> at
> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:144)
> at
> org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:219)
> at
> org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:126)
> at
> org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
> at
> org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:335)
> at
> org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
> at org.eclipse.jetty.server.Server.handle(Server.java:531)
> at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:352)
> at
> org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:260)
> at
> org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:281)
> at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:102)
> at
> org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:118)
> at
> org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:333)
> at
> org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:310)
> at
> org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:168)
> at
> org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:126)
> at
> org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:366)
> at
> org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:762)
> at
> org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:680)
> at java.lang.Thread.run(Thread.java:745)
> Caused by: org.apache.solr.common.SolrException: Unable to create core
> [testCollection_shard1_replica_n1]
> at
> org.apache.solr.core.CoreContainer.createFromDescriptor(CoreContainer.java:1159)
> at org.apache.solr.core.CoreContainer.create(CoreContainer.java:1048)
> ... 44 more
> Caused by: org.apache.solr.common.SolrException: Error Instantiating
> queryParser, com.aroop.plugins.SamplePluggin failed to instantiate
> org.apache.solr.search.QParserPlugin
> at org.apache.solr.core.SolrCore.<init>(SolrCore.java:1014)
> at org.apache.solr.core.SolrCore.<init>(SolrCore.java:869)
> at
> org.apache.solr.core.CoreContainer.createFromDescriptor(CoreContainer.java:1138)
> ... 45 more
> Caused by: org.apache.solr.common.SolrException: Error Instantiating
> queryParser, com.aroop.plugins.SamplePluggin failed to instantiate
> org.apache.solr.search.QParserPlugin
> at org.apache.solr.core.SolrCore.createInstance(SolrCore.java:813)
> at org.apache.solr.core.PluginBag.createPlugin(PluginBag.java:141)
> at org.apache.solr.core.PluginBag.init(PluginBag.java:277)
> at org.apache.solr.core.PluginBag.init(PluginBag.java:266)
> at org.apache.solr.core.SolrCore.<init>(SolrCore.java:963)
> ... 47 more
> Caused by: java.lang.ClassCastException: class com.aroop.plugins.SamplePluggin
> at java.lang.Class.asSubclass(Class.java:3404)
> at
> org.apache.solr.core.SolrResourceLoader.findClass(SolrResourceLoader.java:541)
> at
> org.apache.solr.core.SolrResourceLoader.findClass(SolrResourceLoader.java:488)
> at org.apache.solr.core.SolrCore.createInstance(SolrCore.java:792)
> ... 51 more
>
> Aroop Ganguly
> Siri Data | Metrics Platform
>
