we are using Solr 7.2.1 with Sitecore 9.1 in the Azure app serves
Solr was working normal without any issue and suddenly it is stop to respond
and we noticed in the log file the following error
" java.io.IOException: The user name or password is incorrect "
:java.io.IOException: The user name or password is incorrect
at java.io.WinNTFileSystem.canonicalize0(Native Method)
at java.io.WinNTFileSystem.canonicalize(WinNTFileSystem.java:428)
at java.io.File.getCanonicalPath(File.java:620)
at
org.apache.solr.core.StandardDirectoryFactory.normalize(StandardDirectoryFactory.java:83)
at
org.apache.solr.core.CachingDirectoryFactory.get(CachingDirectoryFactory.java:334)
at
org.apache.solr.core.SolrCore.getNewIndexDir(SolrCore.java:351)
at
org.apache.solr.core.SolrCore.openNewSearcher(SolrCore.java:1977)
at org.apache.solr.core.SolrCore.getSearcher(SolrCore.java:2215)
at org.apache.solr.core.SolrCore.getSearcher(SolrCore.java:1952)
at
org.apache.solr.update.DirectUpdateHandler2.commit(DirectUpdateHandler2.java:715)
at
org.apache.solr.update.processor.RunUpdateProcessor.processCommit(RunUpdateProcessorFactory.java:93)
at
org.apache.solr.update.processor.UpdateRequestProcessor.processCommit(UpdateRequestProcessor.java:68)
at
org.apache.solr.update.processor.DistributedUpdateProcessor.doLocalCommit(DistributedUpdateProcessor.java:1882)
at
org.apache.solr.update.processor.DistributedUpdateProcessor.processCommit(DistributedUpdateProcessor.java:1858)
at
org.apache.solr.update.processor.LogUpdateProcessorFactory$LogUpdateProcessor.processCommit(LogUpdateProcessorFactory.java:160)
at
org.apache.solr.handler.loader.XMLLoader.processUpdate(XMLLoader.java:281)
at
org.apache.solr.handler.loader.XMLLoader.load(XMLLoader.java:188)
at
org.apache.solr.handler.UpdateRequestHandler$1.load(UpdateRequestHandler.java:97)
at
org.apache.solr.handler.ContentStreamHandlerBase.handleRequestBody(ContentStreamHandlerBase.java:68)
at
org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:177)
at org.apache.solr.core.SolrCore.execute(SolrCore.java:2503)
at
org.apache.solr.servlet.HttpSolrCall.execute(HttpSolrCall.java:710)
at
org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:516)
at
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:382)
at
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:326)
at
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1751)
at
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:582)
at
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
at
org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548)
at
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:226)
at
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1180)
at
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:512)
at
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)
at
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1112)
at
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
at
org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:213)
at
org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:119)
at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134)
at
org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:335)
at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134)
at org.eclipse.jetty.server.Server.handle(Server.java:534)
at
org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:320)
at
org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:251)
at
org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:283)
at
org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:108)
at
org.eclipse.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:93)
at
org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.executeProduceConsume(ExecuteProduceConsume.java:303)
at
org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceConsume(ExecuteProduceConsume.java:148)
at
org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:136)
at
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:671)
at
org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:589)
at java.lang.Thread.run(Thread.java:748)
[cid:image001.png@01D79288.77EE4330]
Admin team restarted the Solr server, and we noticed after restarting
a lot of requests and each request is followed by number of trials and it
ends-up by exception firing.
There are many trials try to access Solr using a different PORT every few
minutes, which all lead to failures
After restarting Server
[cid:image002.png@01D79288.77EE4330]
[cid:image003.png@01D79288.77EE4330]
we need to know the root cause of the issue , if this is some kind of attacks
and how to solve it
Best Regards
Mohamed Saad
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