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https://issues.apache.org/jira/browse/CONNECTORS-1070?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14165265#comment-14165265
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Karl Wright commented on CONNECTORS-1070:
-----------------------------------------
Hi Kamil,
Lock clean for file-based synchronization removes *all* state for
synchronization. This is the only place synch info is kept. The "repair"
procedure is therefore to run lock clean. It has worked fine for others for
many many years.
For zookeeper, even lock clean is not necessary. Even if you kill -9 a
process, you should never need to stop zookeeper, wipe its data, and start it
up again. I am honestly completely at a loss how you are managing to cause
this. Unless you can provide steps to reproduce, I will have to close this
ticket as "unreproducible".
Thanks.
> Agents thread exception loop
> ----------------------------
>
> Key: CONNECTORS-1070
> URL: https://issues.apache.org/jira/browse/CONNECTORS-1070
> Project: ManifoldCF
> Issue Type: Bug
> Affects Versions: ManifoldCF 1.7
> Reporter: Kamil Żyta
> Assignee: Karl Wright
>
> occasionally when I stop&start crawler agents they fall into infinite loop.
> I don't know how to stop this exception. stop agents, ui, clean lock do not
> help.
> Log growing fast with messages
> ------------------------------------------------------------------------------------------
> ERROR 2014-10-09 13:58:44,206 (Agents thread) - Exception tossed: Service 'A'
> of type 'AGENT_org.apache.manifoldcf.crawler.system.CrawlerAgent' is already
> active
> org.apache.manifoldcf.core.interfaces.ManifoldCFException: Service 'A' of
> type 'AGENT_org.apache.manifoldcf.crawler.system.CrawlerAgent' is already
> active
> at
> org.apache.manifoldcf.core.lockmanager.BaseLockManager.registerServiceBeginServiceActivity(BaseLockManager.java:162)
> at
> org.apache.manifoldcf.core.lockmanager.BaseLockManager.registerServiceBeginServiceActivity(BaseLockManager.java:126)
> at
> org.apache.manifoldcf.core.lockmanager.LockManager.registerServiceBeginServiceActivity(LockManager.java:69)
> at
> org.apache.manifoldcf.agents.system.AgentsDaemon.checkAgents(AgentsDaemon.java:271)
> at
> org.apache.manifoldcf.agents.system.AgentsDaemon$AgentsThread.run(AgentsDaemon.java:209)
> ERROR 2014-10-09 13:58:44,210 (Agents thread) - Exception tossed: Service 'A'
> of type 'AGENT_org.apache.manifoldcf.crawler.system.CrawlerAgent' is already
> active
> org.apache.manifoldcf.core.interfaces.ManifoldCFException: Service 'A' of
> type 'AGENT_org.apache.manifoldcf.crawler.system.CrawlerAgent' is already
> active
> at
> org.apache.manifoldcf.core.lockmanager.BaseLockManager.registerServiceBeginServiceActivity(BaseLockManager.java:162)
> at
> org.apache.manifoldcf.core.lockmanager.BaseLockManager.registerServiceBeginServiceActivity(BaseLockManager.java:126)
> at
> org.apache.manifoldcf.core.lockmanager.LockManager.registerServiceBeginServiceActivity(LockManager.java:69)
> at
> org.apache.manifoldcf.agents.system.AgentsDaemon.checkAgents(AgentsDaemon.java:271)
> at
> org.apache.manifoldcf.agents.system.AgentsDaemon$AgentsThread.run(AgentsDaemon.java:209)
> ERROR 2014-10-09 13:58:44,214 (Agents thread) - Exception tossed: Service 'A'
> of type 'AGENT_org.apache.manifoldcf.crawler.system.CrawlerAgent' is already
> active
> org.apache.manifoldcf.core.interfaces.ManifoldCFException: Service 'A' of
> type 'AGENT_org.apache.manifoldcf.crawler.system.CrawlerAgent' is already
> active
> at
> org.apache.manifoldcf.core.lockmanager.BaseLockManager.registerServiceBeginServiceActivity(BaseLockManager.java:162)
> at
> org.apache.manifoldcf.core.lockmanager.BaseLockManager.registerServiceBeginServiceActivity(BaseLockManager.java:126)
> at
> org.apache.manifoldcf.core.lockmanager.LockManager.registerServiceBeginServiceActivity(LockManager.java:69)
> at
> org.apache.manifoldcf.agents.system.AgentsDaemon.checkAgents(AgentsDaemon.java:271)
> at
> org.apache.manifoldcf.agents.system.AgentsDaemon$AgentsThread.run(AgentsDaemon.java:209)
> ------------------------------------------------------------------------------------------
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