Re: unsubscribe

2010-07-03 Thread Ma Xiao
unsubscribe

Re: Weird issue with writing large amounts of text to a column value

2010-06-07 Thread Ma Xiao
How big you data is? Try to zip the content before store it, text can get a good zip rate. On Mon, Jun 7, 2010 at 12:13 PM, Jared Laprise wrote: > I just experienced a weird issue where writing a large amount of text to a > column caused my script to crash and hang without any error output. I’m >

Can't start up Cassnadra service.

2010-06-04 Thread Ma Xiao
Cassdra can't start it's service with following error, what's wrong with it? ERROR 14:28:22,631 Exception encountered during startup. java.lang.StringIndexOutOfBoundsException: String index out of range: -1 at java.lang.String.substring(String.java:1937) at org.apache.cassandra.d

Re: High read latency

2010-06-04 Thread Ma Xiao
y) > and your only way out is to change you model so that you don't have > super columns > with so many columns. > > On Fri, Jun 4, 2010 at 8:26 AM, Ma Xiao wrote: >> we have a SupperCF which may have up to 1000 supper columns and 5 >> clumns for each supper col

High read latency

2010-06-03 Thread Ma Xiao
we have a SupperCF which may have up to 1000 supper columns and 5 clumns for each supper column, the read latency may go up to 50ms (even higher), I think it's a long time to response, how to tune the storage config to optimize the performace? I read the wiki, may help to do this, supose that

Multiple hard disks configuration

2010-05-17 Thread Ma Xiao
Hi all, Recently we have a 5 nodes running cassandra, 4 X 1.5TB drives for each, I installed os(Ubuntu 9.10 Server Edition) on one of them, and make entrie disk as 1 partition for others, then I put 4 paths with DataFileDirectory, my question is what's going to happen when one of the disk fail,