cassandra-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Thorvaldsson Justus <justus.thorvalds...@svenskaspel.se>
Subject SV: SV: What is consuming the heap?
Date Tue, 20 Jul 2010 07:01:11 GMT
There is some more information here about memory usage.
http://wiki.apache.org/cassandra/StorageConfiguration
/J

Från: 王一锋 [mailto:wangyifeng@aspire-tech.com]
Skickat: den 20 juli 2010 08:56
Till: user
Ämne: Re: SV: What is consuming the heap?


No, I don't think so. Because I'm not using supercolumn and size of a column will not exceed
1M

2010-07-20
________________________________

________________________________
发件人: Thorvaldsson Justus
发送时间: 2010-07-20  14:52:22
收件人: 'user@cassandra.apache.org'
抄送:
主题: SV: What is consuming the heap?
Supercolumn/column must fit into node memory
It could be?
/Justus
Från: 王一锋 [mailto:wangyifeng@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 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 the load of data per node was around 300G, 16-core CPU, 1T HDD

2010-07-20
________________________________
Mime
View raw message