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Redis won't start due to port in use

Redis won't start due to port in use


Cb Response 5.x


Redis won't start and has this error message in /var/log/cb/redis/redis.log or /var/log/cb/redis/startup.log

Opening port 6379: bind: Address already in use


Another application or another instance of Redis is already using the port.


  1. Stop services

    service cb-enterprise stop (if it’s a cluster, use “/usr/share/cb/cbcluster stop”)

  2. See what is holding the port
    netstat -nlp |grep 6379
    Note: If the port is owned by cb and you just upgraded, follow this guide: Upgrading to 5.2 with a Custom Datastore Directory 
    1. Otherwise kill the process to allow the cb-redis service to start
      kill -9 <PID>
    2. Kill all cb owned processes
      killall -KILL -u cb
    3. Start services
      service cb-enterprise start (if it’s a cluster, use “/usr/share/cb/cbcluster start”)

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