RE: Compaction Strategy guidance

2014-11-22 Thread Servando Muñoz G .
ABUSE YA NO QUIERO MAS MAILS SOY DE MEXICO De: Nikolai Grigoriev [mailto:ngrigor...@gmail.com] Enviado el: sábado, 22 de noviembre de 2014 07:13 p. m. Para: user@cassandra.apache.org Asunto: Re: Compaction Strategy guidance Importancia: Alta Stephane, As everything good, LCS comes at

Re: Compaction Strategy guidance

2014-11-22 Thread Nikolai Grigoriev
Stephane, As everything good, LCS comes at certain price. LCS will put most load on you I/O system (if you use spindles - you may need to be careful about that) and on CPU. Also LCS (by default) may fall back to STCS if it is falling behind (which is very possible with heavy writing activity) and

Compaction Strategy guidance

2014-11-22 Thread Stephane Legay
Hi there, use case: - Heavy write app, few reads. - Lots of updates of rows / columns. - Current performance is fine, for both writes and reads.. - Currently using SizedCompactionStrategy We're trying to limit the amount of storage used during compaction. Should we switch to LeveledCompactionStr

Re: Problem with performance, memory consumption, and RLIMIT_MEMLOCK

2014-11-22 Thread Jens Rantil
Hi Dmitri, I have not used the CPP driver, but maybe you have forgotten set the equivalent of the Iava driver's fetchsize to something sensible? Just an idea, Jens — Sent from Mailbox On Sun, Nov 16, 2014 at 6:09 PM, Dmitri Dmitrienko wrote: > Hi, > I have a very simple table in cassan

Re: bootstrapping node stuck in JOINING state

2014-11-22 Thread Stan Lemon
Hello, I posted a similar issue the other day. We wound up not nuking the data dir and simply deleting the system keyspace from the data dir and then restarted the node. This actually worked and caused our never-ending join process to complete and the node is now a part of the cluster. Stan Lemon