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How to improve Rebalance_cluster() performance
Hi All,
During our Vertica cluster expansion, we see that the Rebalance_cluster() operation takes un-calculated time and i guess, you might also have experienced the same.
Is there any method or temporary settings in vertica to improve rebalance operation ?
In my setup, we have a 3-node cluster and trying to add 1 more cluster. There are segmented projection where small projections was very quickly rebalanced but big projections are problematic.
when i try to rebalance a projection of 400GB, it is giving us speed of 20% seperation_percentage per hour and overall task takes about 6 hours. Any method to pump-up this operation to save time?
Regards,
Raghav Agrawal
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Check out the Knowledge Base post "Best Practices for Preparing Your Cluster for Rebalance". It's packed with a lot of great recommendations!
https://my.vertica.com/kb/PrepareYourClusterforRebalance/Content/BestPractices/PrepareYourClusterforRebalance.htm
Check out the Knowledge Base post "Best Practices for Preparing Your Cluster for Rebalance". It's packed full of great recommendations!
https://my.vertica.com/kb/PrepareYourClusterforRebalance/Content/BestPractices/PrepareYourClusterforRebalance.htm
the rebalance improved A LOT in 8.0.1-2. What vertica version are you using? if it is older version I would recommend to update before doing the rebalance.
Hi Emoreno,
we are using v7.0.x. i will go thru the BestPractises document.
Regards,
RaghavA
check the performance improvement. I do recommend to update before rebalancing.