Re: Can't improve low random-read speed

2018-03-16 Thread Sergey Sova
Finally found 2 stupid issues that caused these problem: 1 - Internet provider speed limit was almost the same that I got in results. So when I run client code on the server where HBase is located speed increased twice or so 2 - I found that we did not specify column family in Get objects, so we al

Re: Can't improve low random-read speed

2018-03-16 Thread rahul gidwani
do you have bloom filters turned on? Are you hitting the block cache or bucket cache? On Fri, Mar 16, 2018 at 8:36 AM, Sergey Sova wrote: > Hi. I'm investigating an issue with low random read speed for a few days, > still stuck. I've already read a few mailing list threads, didn't help, > thoug

Can't improve low random-read speed

2018-03-16 Thread Sergey Sova
Hi. I'm investigating an issue with low random read speed for a few days, still stuck. I've already read a few mailing list threads, didn't help, though setup is a bit different. HBase setup: 3 nodes, 8GB Heap for Region servers, 1 master Table with pre-splitted 120 regions (partitioning), ~ 120M