*Hi All Thank you every body , it now works , and I can work with solr 4.0 the solution was the following , as mentioned before by Jeffrey Chang , I tried a clean solr environment , so I removed all data import jar files from solr class paths , and commented the <lib> directives in solrconfig.xml but kept only on and this is the <lib dir="./solr/lib" /> I run solr without any jar so an exception raised to tell that dataimport is not exist ClassNotFoundException then I turn off the server and put the jar in the example/solr/lib directory after this final step I fired Solr , and now It works fine now !!!! Thanks guys ...I really Thank you
* On Mon, Jun 20, 2011 at 2:56 PM, Muhannad <muh.a...@gmail.com> wrote: > I tried this and removed all dataimport jars , but only kept one on lib > sirectory in Solr instance but the same error exists , I never faced this > problem before , could it because I have a non-stable version of Solr 4.0? > > > 2011/6/20 Jeffrey Chang <jclal...@gmail.com> > >> Hi, >> >> I've encountered a similar issue before. >> >> The problem for me was the Classloader that loaded DataImportHandler class >> is not the same as the one loading the SolrRequestHandler class. >> >> Trace... >> >> In SolrCore.java (3.1 source) >> <-- >> line 459: createInstance(className, SolrRequestHandler.class, "Request >> Handler") >> <-- >> line: 423: clazz = getResourceLoader().findClass(className); >> <-- >> line: 424: if (cast != null && !cast.isAssignableFrom(clazz)) >> >> This evaluation will fail since clazz is not loaded by the same >> classloader as cast. >> >> What I did was to make sure that the dataimport jars are NOT in the >> classpath and not loaded by other classloaders but from the path specified >> in solrconfig.xml. This will ensure that the dataimport classes are loaded >> by the same classloader. >> >> Not sure if this is the same issue you're encountering, I hope this helps. >> >> Thanks, >> Jeff >> >> On Mon, Jun 20, 2011 at 2:36 PM, Muhannad <muh.a...@gmail.com> wrote: >> >>> Yes , I just tried it , and this works for Solr 1.4 I am currently >>> working on , but when I tried 3.1 or 4.0 >>> the same error appears ,I know that the war file no more contains jar >>> files related to dataimport and logging functionality , I put all requested >>> files in class path , and I am sure it loads them as the server starts , but >>> I guess the problem is that it doesn't recognise dataimportHandler as a >>> RequestHandler >>> I really stuck , and confused!!! >>> >>> On Mon, Jun 20, 2011 at 3:14 AM, Bill Bell <billnb...@gmail.com>wrote: >>> >>>> Did you try adding something like this to solrconfig.xml ? >>>> >>>> <lib dir="../../../../dist/" >>>> regex="apache-solr-dataimporthandler-.*\.jar" /> >>>> >>>> <requestHandler name="/dataimport" >>>> class="org.apache.solr.handler.dataimport.DataImportHandler"> >>>> <lst name="defaults"> >>>> <str name="config">db-data-config.xml</str> >>>> </lst> >>>> </requestHandler> >>>> >>>> >>>> >>>> From: Muhannad <muh.a...@gmail.com> >>>> Reply-To: <dev@lucene.apache.org> >>>> Date: Sun, 19 Jun 2011 23:42:45 +0300 >>>> >>>> To: <dev@lucene.apache.org> >>>> Subject: Re: Error :dataimport handler is not request Handler, help >>>> >>>> I have tried many things , same problem still , any help? >>>> >>>> On Sun, Jun 19, 2011 at 9:00 PM, Muhannad <muh.a...@gmail.com> wrote: >>>> >>>>> Hi All , I am really stuck in this problem , I am using solr to >>>>> index some tables in database and I followed these steps to achieve my >>>>> goal >>>>> 1- added the following section to solrconfig.xml <requestHandler >>>>> name="/dataimport" >>>>> class="org.apache.solr.handler.dataimport.DataImportHandler"> >>>>> <lst name="defaults"> >>>>> <str name="config">data-config.xml</str> >>>>> </lst> >>>>> </requestHandler> >>>>> >>>>> *2- added apache-solr-dataimporthandler.jar to lib/ directory (include >>>>> path) >>>>> every thing goes nice !!! for now , till I fire the server >>>>> the following error appears , Please I need You help urgently !!! >>>>> >>>>> =======================Error message============================== >>>>> * HTTP ERROR 500 >>>>> >>>>> Problem accessing /solr/. Reason: >>>>> >>>>> Severe errors in solr configuration. >>>>> >>>>> Check your log files for more detailed information on what may be wrong. >>>>> >>>>> ------------------------------------------------------------- >>>>> org.apache.solr.common.SolrException: Error Instantiating Request >>>>> Handler, org.apache.solr.handler.dataimport.DataImportHandler is not a >>>>> org.apache.solr.request.SolrRequestHandler >>>>> at org.apache.solr.core.SolrCore.createInstance(SolrCore.java:396) >>>>> at org.apache.solr.core.SolrCore.createRequestHandler(SolrCore.java:431) >>>>> at >>>>> org.apache.solr.core.RequestHandlers.initHandlersFromConfig(RequestHandlers.java:158) >>>>> at org.apache.solr.core.SolrCore.<init>(SolrCore.java:513) >>>>> at org.apache.solr.core.CoreContainer.create(CoreContainer.java:653) >>>>> at org.apache.solr.core.CoreContainer.load(CoreContainer.java:406) >>>>> at org.apache.solr.core.CoreContainer.load(CoreContainer.java:291) >>>>> at >>>>> org.apache.solr.core.CoreContainer$Initializer.initialize(CoreContainer.java:240) >>>>> at >>>>> org.apache.solr.servlet.SolrDispatchFilter.init(SolrDispatchFilter.java:93) >>>>> at org.mortbay.jetty.servlet.FilterHolder.doStart(FilterHolder.java:97) >>>>> at >>>>> org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50) >>>>> at >>>>> org.mortbay.jetty.servlet.ServletHandler.initialize(ServletHandler.java:713) >>>>> at org.mortbay.jetty.servlet.Context.startContext(Context.java:140) >>>>> at >>>>> org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1282) >>>>> at >>>>> org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:518) >>>>> at >>>>> org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:499) >>>>> at >>>>> org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50) >>>>> at >>>>> org.mortbay.jetty.handler.HandlerCollection.doStart(HandlerCollection.java:152) >>>>> at >>>>> org.mortbay.jetty.handler.ContextHandlerCollection.doStart(ContextHandlerCollection.java:156) >>>>> at >>>>> org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50) >>>>> at >>>>> org.mortbay.jetty.handler.HandlerCollection.doStart(HandlerCollection.java:152) >>>>> at >>>>> org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50) >>>>> at >>>>> org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130) >>>>> at org.mortbay.jetty.Server.doStart(Server.java:224) >>>>> at >>>>> org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50) >>>>> at org.mortbay.xml.XmlConfiguration.main(XmlConfiguration.java:985) >>>>> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) >>>>> at >>>>> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) >>>>> at >>>>> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) >>>>> at java.lang.reflect.Method.invoke(Method.java:616) >>>>> at org.mortbay.start.Main.invokeMain(Main.java:194) >>>>> at org.mortbay.start.Main.start(Main.java:534) >>>>> at org.mortbay.start.Main.start(Main.java:441) >>>>> at org.mortbay.start.Main.main(Main.java:119) >>>>> ------------------------------------------------------------- >>>>> org.apache.solr.common.SolrException: RequestHandler init failure >>>>> at >>>>> org.apache.solr.core.RequestHandlers.initHandlersFromConfig(RequestHandlers.java:173) >>>>> at org.apache.solr.core.SolrCore.<init>(SolrCore.java:513) >>>>> at org.apache.solr.core.CoreContainer.create(CoreContainer.java:653) >>>>> at org.apache.solr.core.CoreContainer.load(CoreContainer.java:406) >>>>> at org.apache.solr.core.CoreContainer.load(CoreContainer.java:291) >>>>> at >>>>> org.apache.solr.core.CoreContainer$Initializer.initialize(CoreContainer.java:240) >>>>> at >>>>> org.apache.solr.servlet.SolrDispatchFilter.init(SolrDispatchFilter.java:93) >>>>> at org.mortbay.jetty.servlet.FilterHolder.doStart(FilterHolder.java:97) >>>>> at >>>>> org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50) >>>>> at >>>>> org.mortbay.jetty.servlet.ServletHandler.initialize(ServletHandler.java:713) >>>>> at org.mortbay.jetty.servlet.Context.startContext(Context.java:140) >>>>> at >>>>> org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1282) >>>>> at >>>>> org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:518) >>>>> at >>>>> org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:499) >>>>> at >>>>> org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50) >>>>> at >>>>> org.mortbay.jetty.handler.HandlerCollection.doStart(HandlerCollection.java:152) >>>>> at >>>>> org.mortbay.jetty.handler.ContextHandlerCollection.doStart(ContextHandlerCollection.java:156) >>>>> at >>>>> org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50) >>>>> at >>>>> org.mortbay.jetty.handler.HandlerCollection.doStart(HandlerCollection.java:152) >>>>> at >>>>> org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50) >>>>> at >>>>> org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130) >>>>> at org.mortbay.jetty.Server.doStart(Server.java:224) >>>>> at >>>>> org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50) >>>>> at org.mortbay.xml.XmlConfiguration.main(XmlConfiguration.java:985) >>>>> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) >>>>> at >>>>> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) >>>>> at >>>>> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) >>>>> at java.lang.reflect.Method.invoke(Method.java:616) >>>>> at org.mortbay.start.Main.invokeMain(Main.java:194) >>>>> at org.mortbay.start.Main.start(Main.java:534) >>>>> at org.mortbay.start.Main.start(Main.java:441) >>>>> at org.mortbay.start.Main.main(Main.java:119) >>>>> Caused by: org.apache.solr.common.SolrException: Error Instantiating >>>>> Request Handler, org.apache.solr.handler.dataimport.DataImportHandler is >>>>> not a org.apache.solr.request.SolrRequestHandler >>>>> at org.apache.solr.core.SolrCore.createInstance(SolrCore.java:396) >>>>> at org.apache.solr.core.SolrCore.createRequestHandler(SolrCore.java:431) >>>>> at >>>>> org.apache.solr.core.RequestHandlers.initHandlersFromConfig(RequestHandlers.java:158) >>>>> ... 31 more >>>>> >>>>> ------------------------------ >>>>> *Powered by Jetty://* >>>>> >>>>> >>>>> >>>>> -- >>>>> *Eng.Muhannad al Hariri * >>>>> * >>>>> * >>>>> *Software Developer* >>>>> *email : muh.a...@gmail.com* >>>>> *twitter : @muh_acit <http://twitter.com/muh_acit>* >>>>> *Skype : muh.hari* >>>>> *phone : * >>>>> * Jordan +962 78 677 5125* >>>>> * >>>>> * >>>>> *حاسبونا فدققوا ثمّ منّوا فأعتقوا ..هكذا شيمة الملوك بالمماليك يرفقوا* >>>>> * >>>>> * >>>>> >>>>> >>>> >>>> >>>> -- >>>> *Eng.Muhannad al Hariri * >>>> * >>>> * >>>> *Software Developer* >>>> *email : muh.a...@gmail.com* >>>> *twitter : @muh_acit <http://twitter.com/muh_acit>* >>>> *Skype : muh.hari* >>>> *phone : * >>>> * Jordan +962 78 677 5125* >>>> * >>>> * >>>> *حاسبونا فدققوا ثمّ منّوا فأعتقوا ..هكذا شيمة الملوك بالمماليك يرفقوا* >>>> * >>>> * >>>> >>>> >>>> >>>> --------------------------------------------------------------------- >>>> To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org >>>> For additional commands, e-mail: dev-h...@lucene.apache.org >>>> >>> >>> >>> >>> -- >>> *Eng.Muhannad al Hariri * >>> * >>> * >>> *Software Developer* >>> *email : muh.a...@gmail.com* >>> *twitter : @muh_acit <http://twitter.com/muh_acit>* >>> *Skype : muh.hari* >>> *phone : * >>> * Jordan +962 78 677 5125* >>> * >>> * >>> *حاسبونا فدققوا ثمّ منّوا فأعتقوا ..هكذا شيمة الملوك بالمماليك يرفقوا* >>> * >>> * >>> >>> >> > > > -- > *Eng.Muhannad al Hariri * > * > * > *Software Developer* > *email : muh.a...@gmail.com* > *twitter : @muh_acit <http://twitter.com/muh_acit>* > *Skype : muh.hari* > *phone : * > * Jordan +962 78 677 5125* > * > * > *حاسبونا فدققوا ثمّ منّوا فأعتقوا ..هكذا شيمة الملوك بالمماليك يرفقوا* > * > * > > -- *Eng.Muhannad al Hariri * * * *Software Developer* *email : muh.a...@gmail.com* *twitter : @muh_acit <http://twitter.com/muh_acit>* *Skype : muh.hari* *phone : * * Jordan +962 78 677 5125* * * *حاسبونا فدققوا ثمّ منّوا فأعتقوا ..هكذا شيمة الملوك بالمماليك يرفقوا* * *
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