Re: cassandra crashed

2010-06-12 Thread Jonathan Ellis
These look more like symptoms of a crash, than causes of it. I.e., these are the kind of messages you would see if you kill -9 a node that is in the middle of replying to another. On Fri, Jun 11, 2010 at 6:47 AM, hive13 Wong hiv...@gmail.com wrote: One of our cassandra nodes suddenly crashed,

Re: Pelops - a new Java client library paradigm

2010-06-12 Thread Ran Tavory
Nice going, Dominic, having a clear API for cassandra is a big step forward :) Interestingly, at hector we came up with similar approach, just didn't find the time for code that, as production systems keep me busy at nights as well... We started with the implementation of BatchMutation, but the

Re: Pelops - a new Java client library paradigm

2010-06-12 Thread Dan Washusen
Very nice! You mention that the connections are handled internally by Pelops, does that mean that potentially a different connection is used for each operation performed? I had assumed using the same connection for several operations with ConsistencyLevel.ONE would provide a basic level of

Re: Pelops - a new Java client library paradigm

2010-06-12 Thread Miguel Verde
afaik, Cassandra does nothing to guarantee connection-level read your own writes consistency beyond its usual consistency levels. See https://issues.apache.org/jira/browse/CASSANDRA-876 and the earlier http://issues.apache.org/jira/browse/CASSANDRA-132 On Jun 12, 2010, at 5:48 PM, Dan

Re: Pelops - a new Java client library paradigm

2010-06-12 Thread Dan Washusen
Thanks for clarifying! On 13 June 2010 09:03, Miguel Verde miguelitov...@gmail.com wrote: afaik, Cassandra does nothing to guarantee connection-level read your own writes consistency beyond its usual consistency levels. See https://issues.apache.org/jira/browse/CASSANDRA-876 and the earlier

Beginner Assumptions

2010-06-12 Thread Thomas Heller
and would like to check if my assumptions are correct so far. So if someone with operational experience could confirm these I'd really appreciate it. Basically the structure I'm going for right now looks like this: One CF with LongType Keys which represent a day (eg. 20100612, 20100613, ...). Each

GC Storm

2010-06-12 Thread Anty
Hi:ALL I have 10 nodes cluster ,after inserting many records into the cluster, i compact each node by nodetool compact. during the compaciton process ,something wrong with one of the 10 nodes , when the size of the compacted temp file rech nearly 100GB( before compaction ,the size is ~240G) the