Thanks Erick, Jörn danke sehr.
tldr;
gradle trickery and thriftiness helped here.
detail:
To make things easier, for our deployment systems, I created a plugin gradle
task which is economical and yet brings in the right number of jars.
in my case scala-lang jars were required, everything else was compile only. I
used the compileOnly gradle dependency directive for all dependencies except
scala-lang.
also had to remove shading.
> On Feb 10, 2019, at 11:37 PM, Erick Erickson <erickerick...@gmail.com> wrote:
>
> What Jörn said.
>
> Your jar should be nothing but your custom code. Usually I cheat in
> IntelliJ and check the box for artifacts that says something like
> "only compiled output"....
>
> On Sun, Feb 10, 2019 at 10:37 PM Jörn Franke <jornfra...@gmail.com> wrote:
>>
>> You can put all solr dependencies as provided. They are already on the class
>> path - no need to put them in the fat jar.
>>
>>> Am 11.02.2019 um 05:59 schrieb Aroop Ganguly <aroopgang...@icloud.com>:
>>>
>>> Thanks Erick!
>>>
>>> I see. Yes it is a fat jar post shadowJar process (in the order of MBs).
>>> It contains solrj and solr-core dependencies plus a few more scala related
>>> ones.
>>> I guess the solr-core dependencies are unavoidable (right ?), let me try to
>>> trim the others.
>>>
>>> Regards
>>> Aroop
>>>
>>>> On Feb 10, 2019, at 8:44 PM, Erick Erickson <erickerick...@gmail.com>
>>>> wrote:
>>>>
>>>> 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
>>>>>
>>>
