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From Aditya Gupta <ady...@gmail.com>
Subject Re: Newbie Question: Cassandra consuming 100% CPU on ubuntu server
Date Sat, 18 Feb 2012 21:15:51 GMT
In my case, after installing cassandra, as soon as the server is started it
hangs on it own (totally unresponsive).

It had openJDK-6's jdk & jre implementations.

On Sat, Feb 18, 2012 at 10:30 PM, Guy Incognito <dnd1066@gmail.com> wrote:

>  perhaps entirely unrelated, but somebody was asking about lockups on EC2
> yesterday and found: http://wiki.apache.org/cassandra/FAQ#ubuntu_hangs
>
>
> On 18/02/2012 14:58, Aditya Gupta wrote:
>
> Am I installing it the right way ? While installing I didn't verify the
> signatures using public key.
>
> On Sat, Feb 18, 2012 at 8:21 PM, Aditya Gupta <adynnn@gmail.com> wrote:
>
>> No data at all. just a fresh installation
>>
>>
>> On Sat, Feb 18, 2012 at 6:57 PM, R. Verlangen <robin@us2.nl> wrote:
>>
>>> You might want to check your Cassandra logs, they contain important
>>> information that might lead you to the actual cause of the problems.
>>>
>>> 2012/2/18 Aditya Gupta <adynnn@gmail.com>
>>>
>>>> Thanks! But what about the 100% cpu consumption that is causing the
>>>> server to hang?
>>>>
>>>>
>>>> On Sat, Feb 18, 2012 at 6:19 PM, Watanabe Maki <watanabe.maki@gmail.com
>>>> > wrote:
>>>>
>>>>>  I haven't use the packaged kit, but Cassandra uses half of physical
>>>>> memory on your system by default.
>>>>> You need to edit cassandra-env.sh to decrease heap size.
>>>>> Update MAX_HEAP_SIZE and NEW_HEAP_SIZE and restart.
>>>>>
>>>>> From iPhone
>>>>>
>>>>>
>>>>> On 2012/02/18, at 20:40, Aditya Gupta <adynnn@gmail.com> wrote:
>>>>>
>>>>>  I just installed Cassandra on my ubuntu server by adding the
>>>>> following to the sources list:
>>>>>
>>>>>  deb http://www.apache.org/dist/cassandra/debian 10x main
>>>>> deb-src http://www.apache.org/dist/cassandra/debian 10x main
>>>>>
>>>>>
>>>>>  Soon after install I started getting OOM errors & then the server
>>>>> became unresponsive. I added more RAM to the server but found that
>>>>> cassandra was consuming 100% CPU & 1GB RAM as soon the server was
being
>>>>> started. Why is this happening & how can get it to normal conditions
?
>>>>>
>>>>>
>>>>
>>>
>>
>
>

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