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Posted to user@cassandra.apache.org by Arthur Chan <ar...@gmail.com> on 2016/01/23 10:30:15 UTC

Cassandra start Warning

HI,

My version is 3.2.1, when starting Cassandra, I found 3 warning in log:

W1) WARN  09:19:24 jemalloc shared library could not be preloaded to speed
up memory allocations

W2) WARN  09:19:24 JMX is not enabled to receive remote connections. Please
see cassandra-env.sh for more info.

W3) WARN  09:19:24 Cassandra server running in degraded mode. Is swap
disabled? : false,  Address space adequate? : true,  nofile limit adequate?
: false, nproc limit adequate? : false


Any ideas to resolve them?

Regards

Re: Cassandra start Warning

Posted by DuyHai Doan <do...@gmail.com>.

For the warning about system conf, look at the official production settings
recommendations:
http://docs.datastax.com/en/cassandra/3.x/cassandra/install/installRecommendSettings.html


On Sat, Jan 23, 2016 at 10:30 AM, Arthur Chan <ar...@gmail.com>
wrote:

> HI,
>
> My version is 3.2.1, when starting Cassandra, I found 3 warning in log:
>
> W1) WARN  09:19:24 jemalloc shared library could not be preloaded to
> speed up memory allocations
>
> W2) WARN  09:19:24 JMX is not enabled to receive remote connections.
> Please see cassandra-env.sh for more info.
>
> W3) WARN  09:19:24 Cassandra server running in degraded mode. Is swap
> disabled? : false,  Address space adequate? : true,  nofile limit adequate?
> : false, nproc limit adequate? : false
>
>
> Any ideas to resolve them?
>
> Regards
>
>
>
>
>