Help in c* Data modelling

2017-07-22 Thread techpyaasa .
Hi , We have a table like below : CREATE TABLE ks.cf ( accountId bigint, pid bigint, dispName text, status > int, PRIMARY KEY (accountId, pid) ) WITH CLUSTERING ORDER BY (pid ASC); We would like to have following queries possible on the above table: select * from site24x7.wm_current_status

Re: Understanding gossip and seeds

2017-07-22 Thread Daniel Hölbling-Inzko
Seeds are there to bootstrap a node for the very first time when it's has zero knowledge about the ring. I think I also read somewhere that seed nodes are periodically queried for some sanity checks and therefore one should not include too many nodes in the seed list. kurt greaves

Re: Cassandra seems slow when having many read operations

2017-07-22 Thread benjamin roth
Chunk size: For us it made a 20x difference in read io. But it depends a lot on the use case. Am 22.07.2017 08:32 schrieb "Fay Hou [Storage Service] ­" < fay...@coupang.com>: > Hey Felipe: > > When you say increased memory from 16GB to 24GB, I think you meant you > increased heap to 24GB. do you

Re: Cassandra seems slow when having many read operations

2017-07-22 Thread Fay Hou [Storage Service] ­
Hey Felipe: When you say increased memory from 16GB to 24GB, I think you meant you increased heap to 24GB. do you use cms or g1gc? did you change any other parameters? As for the chunk size, we found change 64kb to 16kb didn't make a difference in low key cache rate environment On Fri, Jul