http://accumulo.apache.org/1.8/accumulo_user_manual.html#_merging_tablets
In order to merge small tablets, you can ask Accumulo to merge sections of a table smaller than a given size. root@myinstance> merge -t myTable -s 100M On Mon, Jan 16, 2017 at 4:31 PM, Dickson, Matt MR < matt.dick...@defence.gov.au> wrote: > *UNOFFICIAL* > I have a table that has evolved to have 1.07T tablets and I fairly > confident a large portion of these are now empty or very small. I'd like > to merge smaller tablets and delete empty tablets, is there a smart way to > do this? > > My thought was to query the metadata table for all tablets under a > certain size for the table and then merge these tablets. > > Is the first number in thevalue the size of the tablet, ie > > > scan -b 1xk -e 1xk\xff -c file > 1xk;34234 file:hdfs//name/accumulo/tables/1xk/t-er23423/M423432.rf [] > *213134*,234234 > > Also, are there any side effects of this that I need to be aware of when > doing this on a massive table? > > Thanks in advance, > Matt >
