cassandra-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Robert Coli <rc...@eventbrite.com>
Subject Re: cassandra full gc too long
Date Tue, 29 Dec 2015 03:38:51 GMT
On Mon, Dec 28, 2015 at 5:57 PM, xutom <xutom2006@126.com> wrote:

>     I have 5 nodes in my C* cluster, and each node has the same
> configuration file(Cassandra-env.sh: MAX_HEAP_SIZE="32G" and
> HEAP_NEWSIZE="8G"), and My Cassandra version is 2.1.1. Now I want to
> export all data of one table, i am using  select * from tablename,
>

Probably lower your heap size. If you're using CMS GC with 32gb heap you
will get long GC pauses.

Also use a modern CQL client with paging support.

In addition, upgrade to the head of 2.1.x, 2.1.1 is not a version anyone
should be using in production at this time.

=Rob

Mime
View raw message