Re: compaction: huge number of random reads

2018-05-08 Thread Kyrylo Lebediev
, but as somebody here may know this, ] Why in case of small RA even large reads (bs=128k) are converted to multiple small reads? Regards, Kyrill ________ From: kurt greaves Sent: Tuesday, May 8, 2018 2:12:40 AM To: User Subject: Re: compaction: huge number of random reads I

Re: compaction: huge number of random reads

2018-05-07 Thread kurt greaves
If you've got small partitions/small reads you should test lowering your compression chunk size on the table and disabling read ahead. This sounds like it might just be a case of read amplification. On Tue., 8 May 2018, 05:43 Kyrylo Lebediev, wrote: > Dear Experts, > > > I'm observing strange be