We are in the process of upgrading to the most current version of Hadoop.

At the same time we are in need of upgrading Java.  We are currently running
u17.

I have read elsewhere that u21 or up is the best route to go.  Currently the
version is u26.

Has anyone gone all the way to u26 with or without issues?

Thanks for the help.

I normally don't like sending this out but Informatica created a video
asking people on the street what Hadoop was.  The comments are pretty
funny.  Thought you all might get a kick out of the responses:

http://www.youtube.com/watch?v=tZ2Zm8q9DZg
-----Original Message-----
From: high pointe [mailto:[EMAIL PROTECTED]]
Sent: Monday, July 18, 2011 10:26 AM
To: [EMAIL PROTECTED]
Subject: Hadoop upgrade Java version

We are in the process of upgrading to the most current version of
Hadoop.

At the same time we are in need of upgrading Java.  We are currently
running u17.

I have read elsewhere that u21 or up is the best route to go.  Currently
the version is u26.

Has anyone gone all the way to u26 with or without issues?

Thanks for the help.

So uhm yeah. Thanks for the Informica  commercial.

Now back to my original question.

Anyone have a suggestion on what version of Java I should be using with the latest Hadoop release.

Sent from my iPhone

On Jul 18, 2011, at 11:26 AM, high pointe <[EMAIL PROTECTED]> wrote:

> We are in the process of upgrading to the most current version of Hadoop.
>
> At the same time we are in need of upgrading Java.  We are currently running u17.
>
> I have read elsewhere that u21 or up is the best route to go.  Currently the version is u26.
>
> Has anyone gone all the way to u26 with or without issues?
>
> Thanks for the help.

We're using u26 without any problems.

On Jul 18, 2011, at 4:45 PM, highpointe <[EMAIL PROTECTED]> wrote:

> So uhm yeah. Thanks for the Informica  commercial.
>
> Now back to my original question.
>
> Anyone have a suggestion on what version of Java I should be using with the latest Hadoop release.
>
> Sent from my iPhone
>
> On Jul 18, 2011, at 11:26 AM, high pointe <[EMAIL PROTECTED]> wrote:
>
>> We are in the process of upgrading to the most current version of Hadoop.
>>
>> At the same time we are in need of upgrading Java.  We are currently running u17.
>>
>> I have read elsewhere that u21 or up is the best route to go.  Currently the version is u26.
>>
>> Has anyone gone all the way to u26 with or without issues?
>>
>> Thanks for the help.

Any release after _21 seems to work fine.
> CC: [EMAIL PROTECTED]; [EMAIL PROTECTED]
> From: [EMAIL PROTECTED]
> Subject: Re: Hadoop upgrade Java version
> Date: Mon, 18 Jul 2011 19:37:02 -0600
> To: [EMAIL PROTECTED]
>
> We're using u26 without any problems.
>
> On Jul 18, 2011, at 4:45 PM, highpointe <[EMAIL PROTECTED]> wrote:
>
> > So uhm yeah. Thanks for the Informica  commercial.
> >
> > Now back to my original question.
> >
> > Anyone have a suggestion on what version of Java I should be using with the latest Hadoop release.
> >
> > Sent from my iPhone
> >
> > On Jul 18, 2011, at 11:26 AM, high pointe <[EMAIL PROTECTED]> wrote:
> >
> >> We are in the process of upgrading to the most current version of Hadoop.
> >>
> >> At the same time we are in need of upgrading Java.  We are currently running u17.
> >>
> >> I have read elsewhere that u21 or up is the best route to go.  Currently the version is u26.
> >>
> >> Has anyone gone all the way to u26 with or without issues?
> >>
> >> Thanks for the help.
     

We are using Oracle JDK 6 update 26 and have not observed any problems so
far. EA of JDK 6 update 27 is available now. We are planning to move to
update 27 when the GA release is made available.

-Shrinivas
On Jul 18, 2011 7:52 PM, "Michael Segel" <[EMAIL PROTECTED]> wrote:
>
> Any release after _21 seems to work fine.
>
>
>> CC: [EMAIL PROTECTED]; [EMAIL PROTECTED]
>> From: [EMAIL PROTECTED]
>> Subject: Re: Hadoop upgrade Java version
>> Date: Mon, 18 Jul 2011 19:37:02 -0600
>> To: [EMAIL PROTECTED]
>>
>> We're using u26 without any problems.
>>
>> On Jul 18, 2011, at 4:45 PM, highpointe <[EMAIL PROTECTED]> wrote:
>>
>> > So uhm yeah. Thanks for the Informica commercial.
>> >
>> > Now back to my original question.
>> >
>> > Anyone have a suggestion on what version of Java I should be using with
the latest Hadoop release.
>> >
>> > Sent from my iPhone
>> >
>> > On Jul 18, 2011, at 11:26 AM, high pointe <[EMAIL PROTECTED]>
wrote:
>> >
>> >> We are in the process of upgrading to the most current version of
Hadoop.
>> >>
>> >> At the same time we are in need of upgrading Java. We are currently
running u17.
>> >>
>> >> I have read elsewhere that u21 or up is the best route to go.
Currently the version is u26.
>> >>
>> >> Has anyone gone all the way to u26 with or without issues?
>> >>
>> >> Thanks for the help.
>

Yeah... you can do that...

I haven't tried to mix/match different releases within a cluster, although I suspect I could without any problems, but I don't want to risk it.

Until we have a problem, or until we expand our clouds with a batch of new nodes, I like to follow the mantra... if it aint broke, don't fix it.
(I would suggest if / when you upgrade your java that you bounce the cloud. Even with a rolling restart, you have to plan for it...)

> Date: Mon, 18 Jul 2011 22:54:54 -0500
> Subject: RE: Hadoop upgrade Java version
> From: [EMAIL PROTECTED]
> To: [EMAIL PROTECTED]
>
> We are using Oracle JDK 6 update 26 and have not observed any problems so
> far. EA of JDK 6 update 27 is available now. We are planning to move to
> update 27 when the GA release is made available.
>
> -Shrinivas
> On Jul 18, 2011 7:52 PM, "Michael Segel" <[EMAIL PROTECTED]> wrote:
> >
> > Any release after _21 seems to work fine.
> >
> >
> >> CC: [EMAIL PROTECTED]; [EMAIL PROTECTED]
> >> From: [EMAIL PROTECTED]
> >> Subject: Re: Hadoop upgrade Java version
> >> Date: Mon, 18 Jul 2011 19:37:02 -0600
> >> To: [EMAIL PROTECTED]
> >>
> >> We're using u26 without any problems.
> >>
> >> On Jul 18, 2011, at 4:45 PM, highpointe <[EMAIL PROTECTED]> wrote:
> >>
> >> > So uhm yeah. Thanks for the Informica commercial.
> >> >
> >> > Now back to my original question.
> >> >
> >> > Anyone have a suggestion on what version of Java I should be using with
> the latest Hadoop release.
> >> >
> >> > Sent from my iPhone
> >> >
> >> > On Jul 18, 2011, at 11:26 AM, high pointe <[EMAIL PROTECTED]>
> wrote:
> >> >
> >> >> We are in the process of upgrading to the most current version of
> Hadoop.
> >> >>
> >> >> At the same time we are in need of upgrading Java. We are currently
> running u17.
> >> >>
> >> >> I have read elsewhere that u21 or up is the best route to go.
> Currently the version is u26.
> >> >>
> >> >> Has anyone gone all the way to u26 with or without issues?
> >> >>
> >> >> Thanks for the help.
> >
     

I am using this

java version "1.6.0_15"
Java(TM) SE Runtime Environment (build 1.6.0_15-b03)
Java HotSpot(TM) 64-Bit Server VM (build 14.1-b02, mixed mode)

With latest release and it works fine -

Cheers -

JGS

-----Original Message-----
From: highpointe [mailto:[EMAIL PROTECTED]]
Sent: Monday, July 18, 2011 5:45 PM
To: high pointe
Cc: [EMAIL PROTECTED]
Subject: Re: Hadoop upgrade Java version

So uhm yeah. Thanks for the Informica  commercial.

Now back to my original question.

Anyone have a suggestion on what version of Java I should be using with
the latest Hadoop release.

Sent from my iPhone

On Jul 18, 2011, at 11:26 AM, high pointe <[EMAIL PROTECTED]>
wrote:

> We are in the process of upgrading to the most current version of
Hadoop.
>
> At the same time we are in need of upgrading Java.  We are currently
running u17.
>
> I have read elsewhere that u21 or up is the best route to go.
Currently the version is u26.
>
> Has anyone gone all the way to u26 with or without issues?
>
> Thanks for the help.

_24 seems to work fine on my cluster.

We are running on _24 and _26 without any problem.

On Tue, Jul 19, 2011 at 6:33 PM, Isaac Dooley <[EMAIL PROTECTED]>wrote:

> _24 seems to work fine on my cluster.
>