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User registry synchronization already running in another thread. Synchronize aborted

brahmaiah926
Confirmed Champ
Confirmed Champ

I am not able to start the alfresco instance or service on my machine due to following error logs

Even I am not able to see the logs gettting generated, These error logs posting here are two day back logs collected from alfresco.log file

Please provide any resolve for this, I am strugglin to resolve this from a week long.

2020-03-20 00:00:00,064 WARN [org.alfresco.repo.security.sync.ChainingUserRegistrySynchronizer] User registry synchronization already running in another thread. Synchronize aborted
2020-03-20 04:00:01,038 ERROR [org.quartz.core.JobRunShell] Job DEFAULT.search.archiveCoreBackupJobDetail threw an unhandled Exception:
org.alfresco.error.AlfrescoRuntimeException: 02206002 Backup for core archive failed ....
at org.alfresco.repo.search.impl.solr.SolrBackupClient.executeImpl(SolrBackupClient.java:203)
at org.alfresco.repo.search.impl.solr.SolrBackupClient.execute(SolrBackupClient.java:140)
at org.alfresco.repo.search.impl.solr.SolrBackupJob.execute(SolrBackupJob.java:65)
at org.quartz.core.JobRunShell.run(JobRunShell.java:216)
at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:563)
Caused by: org.apache.solr.client.solrj.SolrServerException: Error executing query
at org.apache.solr.client.solrj.request.QueryRequest.process(QueryRequest.java:95)
at org.apache.solr.client.solrj.SolrServer.query(SolrServer.java:118)
at org.alfresco.repo.solr.SOLRAdminClient.query(SOLRAdminClient.java:203)
at org.alfresco.repo.search.impl.solr.SolrBackupClient.executeImpl(SolrBackupClient.java:192)
... 4 more
Caused by: org.apache.solr.common.SolrException: Service Unavailable

Service Unavailable

request: http://127.0.0.1:9000/solr/archive/replication?qt=/archive/replication&command=backup&location=/usr/...
at org.apache.solr.client.solrj.impl.CommonsHttpSolrServer.request(CommonsHttpSolrServer.java:435)
at org.apache.solr.client.solrj.impl.CommonsHttpSolrServer.request(CommonsHttpSolrServer.java:244)
at org.apache.solr.client.solrj.request.QueryRequest.process(QueryRequest.java:89)
... 7 more
2020-03-20 04:00:01,061 ERROR [org.quartz.core.ErrorLogger] Job (DEFAULT.search.archiveCoreBackupJobDetail threw an exception.
org.quartz.SchedulerException: Job threw an unhandled exception. [See nested exception: org.alfresco.error.AlfrescoRuntimeException: 02206002 Backup for core archive failed .... ]
at org.quartz.core.JobRunShell.run(JobRunShell.java:227)
at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:563)
Caused by: org.alfresco.error.AlfrescoRuntimeException: 02206002 Backup for core archive failed ....

3 REPLIES 3

afaust
Legendary Innovator
Legendary Innovator

What type of Alfresco installation do you have? Are you running Community or Enterprise Edition? If you have Enterprise Edition, are you running in a cluster? This kind of "warning" is a normal log message when you have a clustered system and have not reconfigured the default synchronization cron to avoid execution of the sync on all servers at the same time.

Hi ,

Thanks for your reply.

We  have Enterprise Edition, running in cluster.

afaust
Legendary Innovator
Legendary Innovator

Than this would be "normal". You can try configuring the synchronization.import.cron property to slightly different expressions on each of your servers, so that they don't trigger at the same time. That should typically deal with the warning.