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restore_db_config_ha.md

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Contrail Software running R3.2.9 version.

  1. Perform below steps

    • On all 3 controllers, stop contrail services including Zookeeper

      service supervisor-control stop
service supervisor-config stop
service contrail-database stop
service zookeeper stop

    • On all 3 controllers, verify contrail services including Zookeeper are inactive

      service supervisor-control status
service supervisor-config status
service contrail-database status
service zookeeper status

    • On all 3 analytics nodes, stop kafka service, since they use Zookeeper service

      service kafka stop

    • On all 3 analytics nodes, verify kafka service is STOPPED

      service kafka status

    • On all 3 controllers, backup the existing Cassandra database

      mkdir -p /var/lib/cassandra/data-orig
mkdir -p /var/lib/cassandra/commitlog-orig
mkdir -p /var/lib/cassandra/saved_caches-orig
cp -R /var/lib/cassandra/data/* /var/lib/cassandra/data-orig
cp -R /var/lib/cassandra/commitlog/* /var/lib/cassandra/commitlog-orig
cp -R /var/lib/cassandra/saved_caches/* /var/lib/cassandra/saved_caches-orig
rm -rf /var/lib/cassandra/data/*
rm -rf /var/lib/cassandra/commitlog/*
rm -rf /var/lib/cassandra/save_caches/*

    • On all 3 controllers, backup the existing Zookeeper database

      mkdir -p /var/lib/zookeeper/data/version-2-orig
cp -R /var/lib/zookeeper/data/version-2/* /var/lib/zookeeper/data/version-2-orig
rm -rf /var/lib/zookeeper/data/version-2/*

    • On all 3 controllers, start Cassandra and Zookeeper services

      service contrail-database start
service zookeeper start

    • On all 3 controllers, verify Cassandra and Zookeeper services are running

      service contrail-database status
service zookeeper status

  2. On one of the controller,

    • Import DB 
      cd /usr/lib/python2.7/site-packages/cfgm_common/
python db_json_exim.py --import-from <file_name_path>.json

  3. On all 3 controllers

    • Start all the contrail services 
      service supervisor-control start
service supervisor-config start
    • Verify all the contrail services are “active” 
      contrail-status

  4. On all 3 analytics nodes

    • Start kafka service 
      service kafka start
    • Verify the kafka service is “RUNNING” 
      service kafka status