Re: Cassandra services down frequently [Version 1.1.4]

2013-04-07 Thread
It also use off-heap memory out of JVM. SerializingCacheProvider should be one of the case. Best Regards! Jian Jin 2013/4/6 > Thank you Aaron and Bryan for your advice. > > I have changed following parameters and now Cassandra running absolutely > fine. Please review below setting and advice

Re: Cassandra OOM, many deletedColumn

2013-03-12 Thread
eelance Cassandra Developer > New Zealand > > @aaronmorton > http://www.thelastpickle.com > > On 6/03/2013, at 10:37 PM, Jason Wee wrote: > > hmm.. did you managed to take a look using nodetool tpstats? That may give > you indication further.. > > Jason > > >

Cassandra OOM, many deletedColumn

2013-03-06 Thread
Hi, My version is 1.1.7 Our use case is : we have a index columnfamily to record how many resource is stored for a user. The number might vary from tens to millions. We provide a feature to let user to delete resource according prefix. we found some cassandra will OOM after some period. The

Re: Is there a way to update column's TTL only?

2012-04-05 Thread
eletes in a CF and then action them as > a batch process ? > > Cheers > > - > Aaron Morton > Freelance Developer > @aaronmorton > http://www.thelastpickle.com > > On 5/04/2012, at 2:00 PM, 金剑 wrote: > > Hi, > > We would like t

Is there a way to update column's TTL only?

2012-04-04 Thread
Hi, We would like to leverage Cassandra's expiration to manage our data's lifecycle. We need to: Delete data after a period, like: 1 hour , when user clicked the "Delete" button. We need to read and insert the column in order to update the TTL, but this is unacceptable in our system that might ne