Re: Re: Re: What is consuming the heap?

The version we are using is 0.6.1 2010-07-23 发件人： 王一锋 发送时间： 2010-07-23 09:38:15 收件人： user 抄送： 主题： Re: Re: Re: What is consuming the heap? Yes, we are doing a lot of inserts. But how can CASSANDRA-1042 cause an OutOfMemory? And we are using multigetSlice(). We are not doing any

What is consuming the heap?

In my cluster, I have set both KeysCached and RowsCached of my column family on all nodes to 0, but it still happened that a few nodes crashed because of OutOfMemory (from the gc.log, a full gc wasn't able to free up any memory space), what else can be consuming the heap? heap size is 10G and

Re: SV: What is consuming the heap?

It could be? /Justus Från: 王一锋 [mailto:wangyif...@aspire-tech.com] Skickat: den 20 juli 2010 08:48 Till: user Ämne: What is consuming the heap? In my cluster, I have set both KeysCached and RowsCached of my column family on all nodes to 0, but it still happened that a few nodes crashed because

Re: Re: What is consuming the heap?

So the bloom filters reside in memory completely? We do have a lot of small values, hundreds of millions of columns in a columnfamily. I count the total size of *-Filter.db files in my keyspace, it's 436,747,815bytes. I guess this means it won't consume a major part of 10g heap space

Frequent crashes

Hi, Has anyboy done any memory usage analysis for cassandra? How much memory does cassandra need to manager 300G of data load? How much extra memory will be needed when doing compaction? Regarding mmap, memory usage will be determined by the OS so it has nothing to do with the heap size of

live nodes list in ring

Hi, In a cassandra cluster, when issueing ring command on every nodes, some can show all nodes in the cluster but some can only show some other nodes. All nodes share the same seed list. And even some of the nodes in the seed list have this problem. Restarting the problematic nodes won't solve

Re: Re: live nodes list in ring

(line 576) Node /192.168.34.30 is now part of the cluster Are all the nodes listed? aaron On 30 Jun 2010, at 22:50, 王一锋 wrote: Hi, In a cassandra cluster, when issueing ring command on every nodes, some can show all nodes in the cluster but some can only show some other nodes. All nodes

Re: Re: live nodes list in ring

this Gossiper.java (line 576) Node /192.168.34.30 is now part of the cluster Are all the nodes listed? aaron On 30 Jun 2010, at 22:50, 王一锋 wrote: Hi, In a cassandra cluster, when issueing ring command on every nodes, some can show all nodes in the cluster but some can only show some

Re: RE: live nodes list in ring

of the cluster Are all the nodes listed? aaron On 30 Jun 2010, at 22:50, 王一锋 wrote: Hi, In a cassandra cluster, when issueing ring command on every nodes, some can show all nodes in the cluster but some can only show some other nodes. All nodes share the same seed list. And even some

Benefits of using framed transport over non-framed transport?

Hi everyone, Can anyone throw a light at the benefits of using framed transport over non-framed transport? We are trying to sum up some performance tuning approaches of cassandra in our project. Can framed transport be counted? Thanks 2010-05-08