UNOFFICIAL That looks like a great option. Before using it, whats the cost/impact of running this on a massive table in a system with other large bulk ingests/queries running? In the past when I have used that (which was in 2013 so things may have changed) all ingests were blocked and it took days to complete.
With 1.07T tablets to work on this may take some time? ________________________________ From: Mike Drob [mailto:md...@mdrob.com] Sent: Tuesday, 17 January 2017 09:37 To: user@accumulo.apache.org Subject: Re: Merging smaller/empty tablets [SEC=UNOFFICIAL] 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<mailto: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
