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Solr6 producing lots of error logs

dsc1086

Hello everybody,

In the solr6 webconsole, the logging is producing lots of errors, doing rollbacks mainly because of the following error :

java.lang.NullPointerException
at org.alfresco.solr.tracker.MetadataTracker.setLastTxCommitTimeAndTxIdInTrackerState(MetadataTracker.java:1023)
at org.alfresco.solr.tracker.MetadataTracker.checkRepoAndIndexConsistency(MetadataTracker.java:404)
at org.alfresco.solr.tracker.MetadataTracker.trackRepository(MetadataTracker.java:282)
at org.alfresco.solr.tracker.MetadataTracker.doTrack(MetadataTracker.java:242)
at org.alfresco.solr.tracker.AbstractTracker.track(AbstractTracker.java:242)
at org.alfresco.solr.tracker.ActivatableTracker.track(ActivatableTracker.java:97)
at org.alfresco.solr.tracker.TrackerJob.execute(TrackerJob.java:60)
at org.quartz.core.JobRunShell.run(JobRunShell.java:202)
at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:573)

Does anybody have an idea how to solve this?

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Comments

angelborroy

Do you have some customized configuration in solrcore.properties for the following parameters?

"solr.initial.transaction.range"

"solr.initial.transaction.id"

What Search Services version are you using?

dsc1086

Hello,

Indeed I have the following configuration, which has been the initial config of the file:

solr.initial.transaction.range=0-2000

I am using Search Services 2.0 and installed it according to this tutorial : Alfresco Docs - Installation options

dsc1086

Here is also now the second error message I get in the solr console :

9/14/2021, 9:26:08 AM

ERROR true

SolrInformationServer

Unable to get nodes metadata from repository using fromNodeId=963796, toNodeId=963796, nodeIds=null, fromTxId=null, toTxId=null, txIds=null. See the stacktrace below for further details.

java.net.ConnectException: Connection refused (Connection refused)
	at java.base/java.net.PlainSocketImpl.socketConnect(Native Method)
	at java.base/java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:399)
	at java.base/java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:242)
	at java.base/java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:224)
	at java.base/java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
	at java.base/java.net.Socket.connect(Socket.java:609)
	at java.base/java.net.Socket.connect(Socket.java:558)
	at java.base/java.net.Socket.<init>(Socket.java:454)
	at java.base/java.net.Socket.<init>(Socket.java:306)
	at org.apache.commons.httpclient.protocol.DefaultProtocolSocketFactory.createSocket(DefaultProtocolSocketFactory.java:80)
	at org.apache.commons.httpclient.protocol.DefaultProtocolSocketFactory.createSocket(DefaultProtocolSocketFactory.java:122)
	at org.apache.commons.httpclient.HttpConnection.open(HttpConnection.java:707)
	at org.apache.commons.httpclient.MultiThreadedHttpConnectionManager$HttpConnectionAdapter.open(MultiThreadedHttpConnectionManager.java:1361)
	at org.apache.commons.httpclient.HttpMethodDirector.executeWithRetry(HttpMethodDirector.java:387)
	at org.apache.commons.httpclient.HttpMethodDirector.executeMethod(HttpMethodDirector.java:171)
	at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:397)
	at org.alfresco.httpclient.RequestHeadersHttpClient.executeMethod(RequestHeadersHttpClient.java:84)
	at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:323)
	at org.alfresco.httpclient.RequestHeadersHttpClient.executeMethod(RequestHeadersHttpClient.java:69)
	at org.alfresco.httpclient.AbstractHttpClient.executeMethod(AbstractHttpClient.java:135)
	at org.alfresco.httpclient.AbstractHttpClient.sendRemoteRequest(AbstractHttpClient.java:111)
	at org.alfresco.httpclient.HttpClientFactory$DefaultHttpClient.sendRequest(HttpClientFactory.java:496)
	at org.alfresco.solr.client.SOLRAPIClient.callRepository(SOLRAPIClient.java:1593)
	at org.alfresco.solr.client.SOLRAPIClient.getNodesMetaData(SOLRAPIClient.java:812)
	at org.alfresco.solr.SolrInformationServer.getNodesMetaDataFromRepository(SolrInformationServer.java:4087)
	at org.alfresco.solr.SolrInformationServer.getCascadeNodes(SolrInformationServer.java:1874)
	at org.alfresco.solr.tracker.CascadeTracker.processCascades(CascadeTracker.java:209)
	at org.alfresco.solr.tracker.CascadeTracker.trackRepository(CascadeTracker.java:130)
	at org.alfresco.solr.tracker.CascadeTracker.doTrack(CascadeTracker.java:115)
	at org.alfresco.solr.tracker.AbstractTracker.track(AbstractTracker.java:242)
	at org.alfresco.solr.tracker.ActivatableTracker.track(ActivatableTracker.java:97)
	at org.alfresco.solr.tracker.TrackerJob.execute(TrackerJob.java:60)
	at org.quartz.core.JobRunShell.run(JobRunShell.java:202)
	at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:573)

angelborroy

Then I guess that the main problem is that SOLR is not able to communicate with Alfresco Repository, likely due to a missconfiguration of TLS communication or incorrect Alfreso Repository server URL, port and protocol in SOLR side.