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Posted to user@cassandra.apache.org by cass savy <ca...@gmail.com> on 2015/02/18 20:49:40 UTC
Cassandra install on JRE vs JDK
Can we install Oracle JDK instead of JRE in Cassandra servers? We have few
clusters running JDK when we upgraded to C*2.0.
Is there any known issue or impact with using JDK vs JRE?
What is the reason to not use Oracle JDK in C* servers?
Is there any performance impact ?
Please advice.
Re: Cassandra install on JRE vs JDK
Posted by cass savy <ca...@gmail.com>.
Thanks Robert for quick response. I use Oracle JDK and not OpenJDK.
On Wed, Feb 18, 2015 at 11:54 AM, Robert Stupp <sn...@snazy.de> wrote:
> The ”natural” dependency of Cassandra is the JRE (not the JDK) - e.g. in
> the Debian package.
> You should be safe using JRE instead of JDK.
>
> If you’re asking whether to use a non-Oracle JVM - the answer would be:
> use the Oracle JVM.
> OpenJDK might work, but I’d not recommend it.
>
>
> Am 18.02.2015 um 20:49 schrieb cass savy <ca...@gmail.com>:
>
> Can we install Oracle JDK instead of JRE in Cassandra servers? We have
> few clusters running JDK when we upgraded to C*2.0.
>
> Is there any known issue or impact with using JDK vs JRE?
> What is the reason to not use Oracle JDK in C* servers?
> Is there any performance impact ?
>
> Please advice.
>
>
>
> —
> Robert Stupp
> @snazy
>
>
Re: Cassandra install on JRE vs JDK
Posted by Robert Stupp <sn...@snazy.de>.
The ”natural” dependency of Cassandra is the JRE (not the JDK) - e.g. in the Debian package.
You should be safe using JRE instead of JDK.
If you’re asking whether to use a non-Oracle JVM - the answer would be: use the Oracle JVM.
OpenJDK might work, but I’d not recommend it.
> Am 18.02.2015 um 20:49 schrieb cass savy <ca...@gmail.com>:
>
> Can we install Oracle JDK instead of JRE in Cassandra servers? We have few clusters running JDK when we upgraded to C*2.0.
>
> Is there any known issue or impact with using JDK vs JRE?
> What is the reason to not use Oracle JDK in C* servers?
> Is there any performance impact ?
>
> Please advice.
>
—
Robert Stupp
@snazy
Re: Cassandra install on JRE vs JDK
Posted by karim duran <ka...@gmail.com>.
...with JDK 1.7.x...(not 1.6.x but it's equal) Sorry...
Regards.
Karim Duran
2015-02-18 23:33 GMT+01:00 karim duran <ka...@gmail.com>:
> Hi Mark, Cass Savy, Robert...
>
> I confirm that Cassandra runs on JRE ( or JDK because a JRE is provided
> with JDK ).
> Oracle (ex Sun Microsystem) is the best choice to make Cassandra running
> without issue.
> (there is some problems with IBM JVM or OpenJDK).
>
> Here's a screenshot of Cassandra 2.1.2 running on my computer (Linux
> Ubuntu 14.04 x86-64 with JDK 1.6.x).
>
> Regards.
> Karim Duran.
>
>
>
> 2015-02-18 21:40 GMT+01:00 Mark Reddy <ma...@gmail.com>:
>
>> Cassandra 1.2.18 and Java 1.6 u45.
>>
>> Planning an upgrade to the 2.x series in the near future along with a
>> bump in version of Java.
>>
>> Regards,
>> Mark
>>
>> On 18 February 2015 at 20:32, cass savy <ca...@gmail.com> wrote:
>>
>>> Thanks Mark for quick response. What version of Cassandra and JDK are
>>> you using in Prod.
>>>
>>>
>>> On Wed, Feb 18, 2015 at 11:58 AM, Mark Reddy <ma...@gmail.com>
>>> wrote:
>>>
>>>> Yes you can use Oracle JDK if your prefer, I've been using the JDK with
>>>> Cassandra in production for years without issue.
>>>>
>>>> Regards,
>>>> Mark
>>>>
>>>> On 18 February 2015 at 19:49, cass savy <ca...@gmail.com> wrote:
>>>>
>>>>> Can we install Oracle JDK instead of JRE in Cassandra servers? We
>>>>> have few clusters running JDK when we upgraded to C*2.0.
>>>>>
>>>>> Is there any known issue or impact with using JDK vs JRE?
>>>>> What is the reason to not use Oracle JDK in C* servers?
>>>>> Is there any performance impact ?
>>>>>
>>>>> Please advice.
>>>>>
>>>>>
>>>>
>>>>
>>>
>>
>
Re: Cassandra install on JRE vs JDK
Posted by karim duran <ka...@gmail.com>.
Hi Mark, Cass Savy, Robert...
I confirm that Cassandra runs on JRE ( or JDK because a JRE is provided
with JDK ).
Oracle (ex Sun Microsystem) is the best choice to make Cassandra running
without issue.
(there is some problems with IBM JVM or OpenJDK).
Here's a screenshot of Cassandra 2.1.2 running on my computer (Linux Ubuntu
14.04 x86-64 with JDK 1.6.x).
Regards.
Karim Duran.
2015-02-18 21:40 GMT+01:00 Mark Reddy <ma...@gmail.com>:
> Cassandra 1.2.18 and Java 1.6 u45.
>
> Planning an upgrade to the 2.x series in the near future along with a bump
> in version of Java.
>
> Regards,
> Mark
>
> On 18 February 2015 at 20:32, cass savy <ca...@gmail.com> wrote:
>
>> Thanks Mark for quick response. What version of Cassandra and JDK are
>> you using in Prod.
>>
>>
>> On Wed, Feb 18, 2015 at 11:58 AM, Mark Reddy <ma...@gmail.com>
>> wrote:
>>
>>> Yes you can use Oracle JDK if your prefer, I've been using the JDK with
>>> Cassandra in production for years without issue.
>>>
>>> Regards,
>>> Mark
>>>
>>> On 18 February 2015 at 19:49, cass savy <ca...@gmail.com> wrote:
>>>
>>>> Can we install Oracle JDK instead of JRE in Cassandra servers? We have
>>>> few clusters running JDK when we upgraded to C*2.0.
>>>>
>>>> Is there any known issue or impact with using JDK vs JRE?
>>>> What is the reason to not use Oracle JDK in C* servers?
>>>> Is there any performance impact ?
>>>>
>>>> Please advice.
>>>>
>>>>
>>>
>>>
>>
>
Re: Cassandra install on JRE vs JDK
Posted by Mark Reddy <ma...@gmail.com>.
Cassandra 1.2.18 and Java 1.6 u45.
Planning an upgrade to the 2.x series in the near future along with a bump
in version of Java.
Regards,
Mark
On 18 February 2015 at 20:32, cass savy <ca...@gmail.com> wrote:
> Thanks Mark for quick response. What version of Cassandra and JDK are you
> using in Prod.
>
>
> On Wed, Feb 18, 2015 at 11:58 AM, Mark Reddy <ma...@gmail.com>
> wrote:
>
>> Yes you can use Oracle JDK if your prefer, I've been using the JDK with
>> Cassandra in production for years without issue.
>>
>> Regards,
>> Mark
>>
>> On 18 February 2015 at 19:49, cass savy <ca...@gmail.com> wrote:
>>
>>> Can we install Oracle JDK instead of JRE in Cassandra servers? We have
>>> few clusters running JDK when we upgraded to C*2.0.
>>>
>>> Is there any known issue or impact with using JDK vs JRE?
>>> What is the reason to not use Oracle JDK in C* servers?
>>> Is there any performance impact ?
>>>
>>> Please advice.
>>>
>>>
>>
>>
>
Re: Cassandra install on JRE vs JDK
Posted by cass savy <ca...@gmail.com>.
Thanks Mark for quick response. What version of Cassandra and JDK are you
using in Prod.
On Wed, Feb 18, 2015 at 11:58 AM, Mark Reddy <ma...@gmail.com> wrote:
> Yes you can use Oracle JDK if your prefer, I've been using the JDK with
> Cassandra in production for years without issue.
>
> Regards,
> Mark
>
> On 18 February 2015 at 19:49, cass savy <ca...@gmail.com> wrote:
>
>> Can we install Oracle JDK instead of JRE in Cassandra servers? We have
>> few clusters running JDK when we upgraded to C*2.0.
>>
>> Is there any known issue or impact with using JDK vs JRE?
>> What is the reason to not use Oracle JDK in C* servers?
>> Is there any performance impact ?
>>
>> Please advice.
>>
>>
>
>
Re: Cassandra install on JRE vs JDK
Posted by Mark Reddy <ma...@gmail.com>.
Yes you can use Oracle JDK if your prefer, I've been using the JDK with
Cassandra in production for years without issue.
Regards,
Mark
On 18 February 2015 at 19:49, cass savy <ca...@gmail.com> wrote:
> Can we install Oracle JDK instead of JRE in Cassandra servers? We have
> few clusters running JDK when we upgraded to C*2.0.
>
> Is there any known issue or impact with using JDK vs JRE?
> What is the reason to not use Oracle JDK in C* servers?
> Is there any performance impact ?
>
> Please advice.
>
>