[Bro-Dev] [JIRA] (BIT-253) Can't bind to port 47760, Address already in use

Adam Slagell (JIRA) jira at bro-tracker.atlassian.net
Sun Jan 10 08:39:00 PST 2016

     [ https://bro-tracker.atlassian.net/browse/BIT-253?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Adam Slagell updated BIT-253:
    Issue Type: Problem  (was: New Feature)

> Can't bind to port 47760, Address already in use
> ------------------------------------------------
>                 Key: BIT-253
>                 URL: https://bro-tracker.atlassian.net/browse/BIT-253
>             Project: Bro Issue Tracker
>          Issue Type: Problem
>          Components: BroControl
>    Affects Versions: 1.5.2
>            Reporter: tyler.schoenke
>            Assignee: Daniel Thayer
>            Priority: Low
>             Fix For: 2.5
> I ran into some strange behavior with the cluster.  I was still receiving email alerts, but the log files on the manager contained only headers with no log messages.  The connection summary emails had the columns and summaries with all of the values being empty.
> I ran a dumpcap on my manager's eth0 filtering my worker IP, and saw that the logs were being sent to the manager.  I could start the cluster run broctl stats, and diag with no errors.  I finally saw "Can't bind to port 47760, Address already in use" in the remote.log on the manager.  After stopping the cluster and looking for LISTENing processes, saw that something was bound to that port.  I checked for running bro processes and saw that some hadn't terminated when the cluster was stopped.  After killing those, the cluster started working properly.
> My enhancement request is to have something added to the cluster startup script that reports an error if the manager or workers encounter an error binding to a port.  This error could either prevent the cluster from starting, or just print some message to let the user know there is a problem with port binding.

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