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Re: NDBCluster memory usuage
Posted by: Mikael Ronström ()
Date: December 15, 2016 09:04AM

VARCHAR columns only store the size of the actual data, since the data is
UTF-8 it might be a bit bigger than the number of characters.
TEXT (BLOBs) columns store in chunks, first 256 bytes on main table and
then 2000 byte rows on a BLOB table.
So I gather you actually have more than 1 GByte in your database.

If you are ok with moving the data to disk (it works as long as you don't
need an index on the column) then it sounds like a good idea. Seems like
you have fairly large rows with lots of content, so gather those could
be good to place on disk. But depends on how much indexes you have.

Remember to also add some memory to the DiskPageBufferMemory such that
you can get fairly quick access to this data as well still.

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Subject Views Written By Posted
NDBCluster memory usuage 378 Karthick Subramaniam 12/08/2016 11:25AM
Re: NDBCluster memory usuage 174 Stefan Auweiler 12/08/2016 08:02PM
Re: NDBCluster memory usuage 182 Mikael Ronström 12/13/2016 08:00AM
Re: NDBCluster memory usuage 193 Karthick Subramaniam 12/13/2016 09:22AM
Re: NDBCluster memory usuage 166 Mikael Ronström 12/15/2016 09:04AM
Re: NDBCluster memory usuage 168 Karthick Subramaniam 12/16/2016 10:27AM
Re: NDBCluster memory usuage 152 Mikael Ronström 12/23/2016 05:00AM
Re: NDBCluster memory usuage 148 Karthick Subramaniam 12/23/2016 09:39AM


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