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Posted to user@hadoop.apache.org by SF Hadoop <sf...@gmail.com> on 2013/10/09 23:16:51 UTC
Java version with Hadoop 2.0
I am preparing to deploy multiple cluster / distros of Hadoop for testing /
benchmarking.
In my research I have noticed discrepancies in the version of the JDK that
various groups are using. Example: Hortonworks is suggesting JDK6u31, CDH
recommends either 6 or 7 providing you stick to some guidelines for each
and Apache Hadoop seems to be somewhat of a "no mans land"; a lot of people
using a lot of different versions.
Does anyone have any insight they could share about how to approach
choosing the best JDK release? (I'm a total Java newb, so any info /
further reading you guys can provide is appreciated.)
Thanks.
sf
Re: Java version with Hadoop 2.0
Posted by "J. Ryan Earl" <os...@jryanearl.us>.
We recently switched all our productions clusters to JDK7 off the EOL JDK6.
The one big gotcha, and this was -not- specifically a problem with the
Hadoop framework but you may have issues with your own applications or
clients is the with the Java 7 "bytecode verifier" which can be disabled
with "-XX:-UseSplitVerifier":
http://chrononsystems.com/blog/java-7-design-flaw-leads-to-huge-backward-step-for-the-jvm
-JR
On Wed, Oct 9, 2013 at 5:57 PM, Patai Sangbutsarakum <
Patai.Sangbutsarakum@turn.com> wrote:
> Does that mean for the new cluster, we probably try to start to aim to
> test/use/deploy at java 7?
>
>
> On Oct 9, 2013, at 3:05 PM, Andre Kelpe <ak...@concurrentinc.com>
> wrote:
>
> > also keep in mind, that java 6 no longer gets "public" updates from
> > Oracle: http://www.oracle.com/technetwork/java/eol-135779.html
> >
> > - André
> >
> > On Wed, Oct 9, 2013 at 11:48 PM, SF Hadoop <sf...@gmail.com> wrote:
> >> I hadn't. Thank you!!! Very helpful.
> >>
> >> Andy
> >>
> >>
> >> On Wed, Oct 9, 2013 at 2:25 PM, Patai Sangbutsarakum
> >> <Pa...@turn.com> wrote:
> >>>
> >>> maybe you've already seen this.
> >>>
> >>> http://wiki.apache.org/hadoop/HadoopJavaVersions
> >>>
> >>>
> >>> On Oct 9, 2013, at 2:16 PM, SF Hadoop <sf...@gmail.com>
> >>> wrote:
> >>>
> >>> I am preparing to deploy multiple cluster / distros of Hadoop for
> testing
> >>> / benchmarking.
> >>>
> >>> In my research I have noticed discrepancies in the version of the JDK
> that
> >>> various groups are using. Example: Hortonworks is suggesting
> JDK6u31, CDH
> >>> recommends either 6 or 7 providing you stick to some guidelines for
> each and
> >>> Apache Hadoop seems to be somewhat of a "no mans land"; a lot of people
> >>> using a lot of different versions.
> >>>
> >>> Does anyone have any insight they could share about how to approach
> >>> choosing the best JDK release? (I'm a total Java newb, so any info /
> >>> further reading you guys can provide is appreciated.)
> >>>
> >>> Thanks.
> >>>
> >>> sf
> >>>
> >>>
> >>
> >
> >
> >
> > --
> > André Kelpe
> > andre@concurrentinc.com
> > http://concurrentinc.com
>
>
Re: Java version with Hadoop 2.0
Posted by "J. Ryan Earl" <os...@jryanearl.us>.
We recently switched all our productions clusters to JDK7 off the EOL JDK6.
The one big gotcha, and this was -not- specifically a problem with the
Hadoop framework but you may have issues with your own applications or
clients is the with the Java 7 "bytecode verifier" which can be disabled
with "-XX:-UseSplitVerifier":
http://chrononsystems.com/blog/java-7-design-flaw-leads-to-huge-backward-step-for-the-jvm
-JR
On Wed, Oct 9, 2013 at 5:57 PM, Patai Sangbutsarakum <
Patai.Sangbutsarakum@turn.com> wrote:
> Does that mean for the new cluster, we probably try to start to aim to
> test/use/deploy at java 7?
>
>
> On Oct 9, 2013, at 3:05 PM, Andre Kelpe <ak...@concurrentinc.com>
> wrote:
>
> > also keep in mind, that java 6 no longer gets "public" updates from
> > Oracle: http://www.oracle.com/technetwork/java/eol-135779.html
> >
> > - André
> >
> > On Wed, Oct 9, 2013 at 11:48 PM, SF Hadoop <sf...@gmail.com> wrote:
> >> I hadn't. Thank you!!! Very helpful.
> >>
> >> Andy
> >>
> >>
> >> On Wed, Oct 9, 2013 at 2:25 PM, Patai Sangbutsarakum
> >> <Pa...@turn.com> wrote:
> >>>
> >>> maybe you've already seen this.
> >>>
> >>> http://wiki.apache.org/hadoop/HadoopJavaVersions
> >>>
> >>>
> >>> On Oct 9, 2013, at 2:16 PM, SF Hadoop <sf...@gmail.com>
> >>> wrote:
> >>>
> >>> I am preparing to deploy multiple cluster / distros of Hadoop for
> testing
> >>> / benchmarking.
> >>>
> >>> In my research I have noticed discrepancies in the version of the JDK
> that
> >>> various groups are using. Example: Hortonworks is suggesting
> JDK6u31, CDH
> >>> recommends either 6 or 7 providing you stick to some guidelines for
> each and
> >>> Apache Hadoop seems to be somewhat of a "no mans land"; a lot of people
> >>> using a lot of different versions.
> >>>
> >>> Does anyone have any insight they could share about how to approach
> >>> choosing the best JDK release? (I'm a total Java newb, so any info /
> >>> further reading you guys can provide is appreciated.)
> >>>
> >>> Thanks.
> >>>
> >>> sf
> >>>
> >>>
> >>
> >
> >
> >
> > --
> > André Kelpe
> > andre@concurrentinc.com
> > http://concurrentinc.com
>
>
Re: Java version with Hadoop 2.0
Posted by "J. Ryan Earl" <os...@jryanearl.us>.
We recently switched all our productions clusters to JDK7 off the EOL JDK6.
The one big gotcha, and this was -not- specifically a problem with the
Hadoop framework but you may have issues with your own applications or
clients is the with the Java 7 "bytecode verifier" which can be disabled
with "-XX:-UseSplitVerifier":
http://chrononsystems.com/blog/java-7-design-flaw-leads-to-huge-backward-step-for-the-jvm
-JR
On Wed, Oct 9, 2013 at 5:57 PM, Patai Sangbutsarakum <
Patai.Sangbutsarakum@turn.com> wrote:
> Does that mean for the new cluster, we probably try to start to aim to
> test/use/deploy at java 7?
>
>
> On Oct 9, 2013, at 3:05 PM, Andre Kelpe <ak...@concurrentinc.com>
> wrote:
>
> > also keep in mind, that java 6 no longer gets "public" updates from
> > Oracle: http://www.oracle.com/technetwork/java/eol-135779.html
> >
> > - André
> >
> > On Wed, Oct 9, 2013 at 11:48 PM, SF Hadoop <sf...@gmail.com> wrote:
> >> I hadn't. Thank you!!! Very helpful.
> >>
> >> Andy
> >>
> >>
> >> On Wed, Oct 9, 2013 at 2:25 PM, Patai Sangbutsarakum
> >> <Pa...@turn.com> wrote:
> >>>
> >>> maybe you've already seen this.
> >>>
> >>> http://wiki.apache.org/hadoop/HadoopJavaVersions
> >>>
> >>>
> >>> On Oct 9, 2013, at 2:16 PM, SF Hadoop <sf...@gmail.com>
> >>> wrote:
> >>>
> >>> I am preparing to deploy multiple cluster / distros of Hadoop for
> testing
> >>> / benchmarking.
> >>>
> >>> In my research I have noticed discrepancies in the version of the JDK
> that
> >>> various groups are using. Example: Hortonworks is suggesting
> JDK6u31, CDH
> >>> recommends either 6 or 7 providing you stick to some guidelines for
> each and
> >>> Apache Hadoop seems to be somewhat of a "no mans land"; a lot of people
> >>> using a lot of different versions.
> >>>
> >>> Does anyone have any insight they could share about how to approach
> >>> choosing the best JDK release? (I'm a total Java newb, so any info /
> >>> further reading you guys can provide is appreciated.)
> >>>
> >>> Thanks.
> >>>
> >>> sf
> >>>
> >>>
> >>
> >
> >
> >
> > --
> > André Kelpe
> > andre@concurrentinc.com
> > http://concurrentinc.com
>
>
Re: Java version with Hadoop 2.0
Posted by "J. Ryan Earl" <os...@jryanearl.us>.
We recently switched all our productions clusters to JDK7 off the EOL JDK6.
The one big gotcha, and this was -not- specifically a problem with the
Hadoop framework but you may have issues with your own applications or
clients is the with the Java 7 "bytecode verifier" which can be disabled
with "-XX:-UseSplitVerifier":
http://chrononsystems.com/blog/java-7-design-flaw-leads-to-huge-backward-step-for-the-jvm
-JR
On Wed, Oct 9, 2013 at 5:57 PM, Patai Sangbutsarakum <
Patai.Sangbutsarakum@turn.com> wrote:
> Does that mean for the new cluster, we probably try to start to aim to
> test/use/deploy at java 7?
>
>
> On Oct 9, 2013, at 3:05 PM, Andre Kelpe <ak...@concurrentinc.com>
> wrote:
>
> > also keep in mind, that java 6 no longer gets "public" updates from
> > Oracle: http://www.oracle.com/technetwork/java/eol-135779.html
> >
> > - André
> >
> > On Wed, Oct 9, 2013 at 11:48 PM, SF Hadoop <sf...@gmail.com> wrote:
> >> I hadn't. Thank you!!! Very helpful.
> >>
> >> Andy
> >>
> >>
> >> On Wed, Oct 9, 2013 at 2:25 PM, Patai Sangbutsarakum
> >> <Pa...@turn.com> wrote:
> >>>
> >>> maybe you've already seen this.
> >>>
> >>> http://wiki.apache.org/hadoop/HadoopJavaVersions
> >>>
> >>>
> >>> On Oct 9, 2013, at 2:16 PM, SF Hadoop <sf...@gmail.com>
> >>> wrote:
> >>>
> >>> I am preparing to deploy multiple cluster / distros of Hadoop for
> testing
> >>> / benchmarking.
> >>>
> >>> In my research I have noticed discrepancies in the version of the JDK
> that
> >>> various groups are using. Example: Hortonworks is suggesting
> JDK6u31, CDH
> >>> recommends either 6 or 7 providing you stick to some guidelines for
> each and
> >>> Apache Hadoop seems to be somewhat of a "no mans land"; a lot of people
> >>> using a lot of different versions.
> >>>
> >>> Does anyone have any insight they could share about how to approach
> >>> choosing the best JDK release? (I'm a total Java newb, so any info /
> >>> further reading you guys can provide is appreciated.)
> >>>
> >>> Thanks.
> >>>
> >>> sf
> >>>
> >>>
> >>
> >
> >
> >
> > --
> > André Kelpe
> > andre@concurrentinc.com
> > http://concurrentinc.com
>
>
Re: Java version with Hadoop 2.0
Posted by Patai Sangbutsarakum <Pa...@turn.com>.
Does that mean for the new cluster, we probably try to start to aim to test/use/deploy at java 7?
On Oct 9, 2013, at 3:05 PM, Andre Kelpe <ak...@concurrentinc.com>
wrote:
> also keep in mind, that java 6 no longer gets "public" updates from
> Oracle: http://www.oracle.com/technetwork/java/eol-135779.html
>
> - André
>
> On Wed, Oct 9, 2013 at 11:48 PM, SF Hadoop <sf...@gmail.com> wrote:
>> I hadn't. Thank you!!! Very helpful.
>>
>> Andy
>>
>>
>> On Wed, Oct 9, 2013 at 2:25 PM, Patai Sangbutsarakum
>> <Pa...@turn.com> wrote:
>>>
>>> maybe you've already seen this.
>>>
>>> http://wiki.apache.org/hadoop/HadoopJavaVersions
>>>
>>>
>>> On Oct 9, 2013, at 2:16 PM, SF Hadoop <sf...@gmail.com>
>>> wrote:
>>>
>>> I am preparing to deploy multiple cluster / distros of Hadoop for testing
>>> / benchmarking.
>>>
>>> In my research I have noticed discrepancies in the version of the JDK that
>>> various groups are using. Example: Hortonworks is suggesting JDK6u31, CDH
>>> recommends either 6 or 7 providing you stick to some guidelines for each and
>>> Apache Hadoop seems to be somewhat of a "no mans land"; a lot of people
>>> using a lot of different versions.
>>>
>>> Does anyone have any insight they could share about how to approach
>>> choosing the best JDK release? (I'm a total Java newb, so any info /
>>> further reading you guys can provide is appreciated.)
>>>
>>> Thanks.
>>>
>>> sf
>>>
>>>
>>
>
>
>
> --
> André Kelpe
> andre@concurrentinc.com
> http://concurrentinc.com
Re: Java version with Hadoop 2.0
Posted by Patai Sangbutsarakum <Pa...@turn.com>.
Does that mean for the new cluster, we probably try to start to aim to test/use/deploy at java 7?
On Oct 9, 2013, at 3:05 PM, Andre Kelpe <ak...@concurrentinc.com>
wrote:
> also keep in mind, that java 6 no longer gets "public" updates from
> Oracle: http://www.oracle.com/technetwork/java/eol-135779.html
>
> - André
>
> On Wed, Oct 9, 2013 at 11:48 PM, SF Hadoop <sf...@gmail.com> wrote:
>> I hadn't. Thank you!!! Very helpful.
>>
>> Andy
>>
>>
>> On Wed, Oct 9, 2013 at 2:25 PM, Patai Sangbutsarakum
>> <Pa...@turn.com> wrote:
>>>
>>> maybe you've already seen this.
>>>
>>> http://wiki.apache.org/hadoop/HadoopJavaVersions
>>>
>>>
>>> On Oct 9, 2013, at 2:16 PM, SF Hadoop <sf...@gmail.com>
>>> wrote:
>>>
>>> I am preparing to deploy multiple cluster / distros of Hadoop for testing
>>> / benchmarking.
>>>
>>> In my research I have noticed discrepancies in the version of the JDK that
>>> various groups are using. Example: Hortonworks is suggesting JDK6u31, CDH
>>> recommends either 6 or 7 providing you stick to some guidelines for each and
>>> Apache Hadoop seems to be somewhat of a "no mans land"; a lot of people
>>> using a lot of different versions.
>>>
>>> Does anyone have any insight they could share about how to approach
>>> choosing the best JDK release? (I'm a total Java newb, so any info /
>>> further reading you guys can provide is appreciated.)
>>>
>>> Thanks.
>>>
>>> sf
>>>
>>>
>>
>
>
>
> --
> André Kelpe
> andre@concurrentinc.com
> http://concurrentinc.com
Re: Java version with Hadoop 2.0
Posted by Patai Sangbutsarakum <Pa...@turn.com>.
Does that mean for the new cluster, we probably try to start to aim to test/use/deploy at java 7?
On Oct 9, 2013, at 3:05 PM, Andre Kelpe <ak...@concurrentinc.com>
wrote:
> also keep in mind, that java 6 no longer gets "public" updates from
> Oracle: http://www.oracle.com/technetwork/java/eol-135779.html
>
> - André
>
> On Wed, Oct 9, 2013 at 11:48 PM, SF Hadoop <sf...@gmail.com> wrote:
>> I hadn't. Thank you!!! Very helpful.
>>
>> Andy
>>
>>
>> On Wed, Oct 9, 2013 at 2:25 PM, Patai Sangbutsarakum
>> <Pa...@turn.com> wrote:
>>>
>>> maybe you've already seen this.
>>>
>>> http://wiki.apache.org/hadoop/HadoopJavaVersions
>>>
>>>
>>> On Oct 9, 2013, at 2:16 PM, SF Hadoop <sf...@gmail.com>
>>> wrote:
>>>
>>> I am preparing to deploy multiple cluster / distros of Hadoop for testing
>>> / benchmarking.
>>>
>>> In my research I have noticed discrepancies in the version of the JDK that
>>> various groups are using. Example: Hortonworks is suggesting JDK6u31, CDH
>>> recommends either 6 or 7 providing you stick to some guidelines for each and
>>> Apache Hadoop seems to be somewhat of a "no mans land"; a lot of people
>>> using a lot of different versions.
>>>
>>> Does anyone have any insight they could share about how to approach
>>> choosing the best JDK release? (I'm a total Java newb, so any info /
>>> further reading you guys can provide is appreciated.)
>>>
>>> Thanks.
>>>
>>> sf
>>>
>>>
>>
>
>
>
> --
> André Kelpe
> andre@concurrentinc.com
> http://concurrentinc.com
Re: Java version with Hadoop 2.0
Posted by Patai Sangbutsarakum <Pa...@turn.com>.
Does that mean for the new cluster, we probably try to start to aim to test/use/deploy at java 7?
On Oct 9, 2013, at 3:05 PM, Andre Kelpe <ak...@concurrentinc.com>
wrote:
> also keep in mind, that java 6 no longer gets "public" updates from
> Oracle: http://www.oracle.com/technetwork/java/eol-135779.html
>
> - André
>
> On Wed, Oct 9, 2013 at 11:48 PM, SF Hadoop <sf...@gmail.com> wrote:
>> I hadn't. Thank you!!! Very helpful.
>>
>> Andy
>>
>>
>> On Wed, Oct 9, 2013 at 2:25 PM, Patai Sangbutsarakum
>> <Pa...@turn.com> wrote:
>>>
>>> maybe you've already seen this.
>>>
>>> http://wiki.apache.org/hadoop/HadoopJavaVersions
>>>
>>>
>>> On Oct 9, 2013, at 2:16 PM, SF Hadoop <sf...@gmail.com>
>>> wrote:
>>>
>>> I am preparing to deploy multiple cluster / distros of Hadoop for testing
>>> / benchmarking.
>>>
>>> In my research I have noticed discrepancies in the version of the JDK that
>>> various groups are using. Example: Hortonworks is suggesting JDK6u31, CDH
>>> recommends either 6 or 7 providing you stick to some guidelines for each and
>>> Apache Hadoop seems to be somewhat of a "no mans land"; a lot of people
>>> using a lot of different versions.
>>>
>>> Does anyone have any insight they could share about how to approach
>>> choosing the best JDK release? (I'm a total Java newb, so any info /
>>> further reading you guys can provide is appreciated.)
>>>
>>> Thanks.
>>>
>>> sf
>>>
>>>
>>
>
>
>
> --
> André Kelpe
> andre@concurrentinc.com
> http://concurrentinc.com
Re: Java version with Hadoop 2.0
Posted by Andre Kelpe <ak...@concurrentinc.com>.
also keep in mind, that java 6 no longer gets "public" updates from
Oracle: http://www.oracle.com/technetwork/java/eol-135779.html
- André
On Wed, Oct 9, 2013 at 11:48 PM, SF Hadoop <sf...@gmail.com> wrote:
> I hadn't. Thank you!!! Very helpful.
>
> Andy
>
>
> On Wed, Oct 9, 2013 at 2:25 PM, Patai Sangbutsarakum
> <Pa...@turn.com> wrote:
>>
>> maybe you've already seen this.
>>
>> http://wiki.apache.org/hadoop/HadoopJavaVersions
>>
>>
>> On Oct 9, 2013, at 2:16 PM, SF Hadoop <sf...@gmail.com>
>> wrote:
>>
>> I am preparing to deploy multiple cluster / distros of Hadoop for testing
>> / benchmarking.
>>
>> In my research I have noticed discrepancies in the version of the JDK that
>> various groups are using. Example: Hortonworks is suggesting JDK6u31, CDH
>> recommends either 6 or 7 providing you stick to some guidelines for each and
>> Apache Hadoop seems to be somewhat of a "no mans land"; a lot of people
>> using a lot of different versions.
>>
>> Does anyone have any insight they could share about how to approach
>> choosing the best JDK release? (I'm a total Java newb, so any info /
>> further reading you guys can provide is appreciated.)
>>
>> Thanks.
>>
>> sf
>>
>>
>
--
André Kelpe
andre@concurrentinc.com
http://concurrentinc.com
Re: Java version with Hadoop 2.0
Posted by Andre Kelpe <ak...@concurrentinc.com>.
also keep in mind, that java 6 no longer gets "public" updates from
Oracle: http://www.oracle.com/technetwork/java/eol-135779.html
- André
On Wed, Oct 9, 2013 at 11:48 PM, SF Hadoop <sf...@gmail.com> wrote:
> I hadn't. Thank you!!! Very helpful.
>
> Andy
>
>
> On Wed, Oct 9, 2013 at 2:25 PM, Patai Sangbutsarakum
> <Pa...@turn.com> wrote:
>>
>> maybe you've already seen this.
>>
>> http://wiki.apache.org/hadoop/HadoopJavaVersions
>>
>>
>> On Oct 9, 2013, at 2:16 PM, SF Hadoop <sf...@gmail.com>
>> wrote:
>>
>> I am preparing to deploy multiple cluster / distros of Hadoop for testing
>> / benchmarking.
>>
>> In my research I have noticed discrepancies in the version of the JDK that
>> various groups are using. Example: Hortonworks is suggesting JDK6u31, CDH
>> recommends either 6 or 7 providing you stick to some guidelines for each and
>> Apache Hadoop seems to be somewhat of a "no mans land"; a lot of people
>> using a lot of different versions.
>>
>> Does anyone have any insight they could share about how to approach
>> choosing the best JDK release? (I'm a total Java newb, so any info /
>> further reading you guys can provide is appreciated.)
>>
>> Thanks.
>>
>> sf
>>
>>
>
--
André Kelpe
andre@concurrentinc.com
http://concurrentinc.com
Re: Java version with Hadoop 2.0
Posted by Andre Kelpe <ak...@concurrentinc.com>.
also keep in mind, that java 6 no longer gets "public" updates from
Oracle: http://www.oracle.com/technetwork/java/eol-135779.html
- André
On Wed, Oct 9, 2013 at 11:48 PM, SF Hadoop <sf...@gmail.com> wrote:
> I hadn't. Thank you!!! Very helpful.
>
> Andy
>
>
> On Wed, Oct 9, 2013 at 2:25 PM, Patai Sangbutsarakum
> <Pa...@turn.com> wrote:
>>
>> maybe you've already seen this.
>>
>> http://wiki.apache.org/hadoop/HadoopJavaVersions
>>
>>
>> On Oct 9, 2013, at 2:16 PM, SF Hadoop <sf...@gmail.com>
>> wrote:
>>
>> I am preparing to deploy multiple cluster / distros of Hadoop for testing
>> / benchmarking.
>>
>> In my research I have noticed discrepancies in the version of the JDK that
>> various groups are using. Example: Hortonworks is suggesting JDK6u31, CDH
>> recommends either 6 or 7 providing you stick to some guidelines for each and
>> Apache Hadoop seems to be somewhat of a "no mans land"; a lot of people
>> using a lot of different versions.
>>
>> Does anyone have any insight they could share about how to approach
>> choosing the best JDK release? (I'm a total Java newb, so any info /
>> further reading you guys can provide is appreciated.)
>>
>> Thanks.
>>
>> sf
>>
>>
>
--
André Kelpe
andre@concurrentinc.com
http://concurrentinc.com
Re: Java version with Hadoop 2.0
Posted by Andre Kelpe <ak...@concurrentinc.com>.
also keep in mind, that java 6 no longer gets "public" updates from
Oracle: http://www.oracle.com/technetwork/java/eol-135779.html
- André
On Wed, Oct 9, 2013 at 11:48 PM, SF Hadoop <sf...@gmail.com> wrote:
> I hadn't. Thank you!!! Very helpful.
>
> Andy
>
>
> On Wed, Oct 9, 2013 at 2:25 PM, Patai Sangbutsarakum
> <Pa...@turn.com> wrote:
>>
>> maybe you've already seen this.
>>
>> http://wiki.apache.org/hadoop/HadoopJavaVersions
>>
>>
>> On Oct 9, 2013, at 2:16 PM, SF Hadoop <sf...@gmail.com>
>> wrote:
>>
>> I am preparing to deploy multiple cluster / distros of Hadoop for testing
>> / benchmarking.
>>
>> In my research I have noticed discrepancies in the version of the JDK that
>> various groups are using. Example: Hortonworks is suggesting JDK6u31, CDH
>> recommends either 6 or 7 providing you stick to some guidelines for each and
>> Apache Hadoop seems to be somewhat of a "no mans land"; a lot of people
>> using a lot of different versions.
>>
>> Does anyone have any insight they could share about how to approach
>> choosing the best JDK release? (I'm a total Java newb, so any info /
>> further reading you guys can provide is appreciated.)
>>
>> Thanks.
>>
>> sf
>>
>>
>
--
André Kelpe
andre@concurrentinc.com
http://concurrentinc.com
Re: Java version with Hadoop 2.0
Posted by SF Hadoop <sf...@gmail.com>.
I hadn't. Thank you!!! Very helpful.
Andy
On Wed, Oct 9, 2013 at 2:25 PM, Patai Sangbutsarakum <
Patai.Sangbutsarakum@turn.com> wrote:
> maybe you've already seen this.
>
> http://wiki.apache.org/hadoop/HadoopJavaVersions
>
>
> On Oct 9, 2013, at 2:16 PM, SF Hadoop <sf...@gmail.com>
> wrote:
>
> I am preparing to deploy multiple cluster / distros of Hadoop for
> testing / benchmarking.
>
> In my research I have noticed discrepancies in the version of the JDK
> that various groups are using. Example: Hortonworks is suggesting
> JDK6u31, CDH recommends either 6 or 7 providing you stick to some
> guidelines for each and Apache Hadoop seems to be somewhat of a "no mans
> land"; a lot of people using a lot of different versions.
>
> Does anyone have any insight they could share about how to approach
> choosing the best JDK release? (I'm a total Java newb, so any info /
> further reading you guys can provide is appreciated.)
>
> Thanks.
>
> sf
>
>
>
Re: Java version with Hadoop 2.0
Posted by SF Hadoop <sf...@gmail.com>.
I hadn't. Thank you!!! Very helpful.
Andy
On Wed, Oct 9, 2013 at 2:25 PM, Patai Sangbutsarakum <
Patai.Sangbutsarakum@turn.com> wrote:
> maybe you've already seen this.
>
> http://wiki.apache.org/hadoop/HadoopJavaVersions
>
>
> On Oct 9, 2013, at 2:16 PM, SF Hadoop <sf...@gmail.com>
> wrote:
>
> I am preparing to deploy multiple cluster / distros of Hadoop for
> testing / benchmarking.
>
> In my research I have noticed discrepancies in the version of the JDK
> that various groups are using. Example: Hortonworks is suggesting
> JDK6u31, CDH recommends either 6 or 7 providing you stick to some
> guidelines for each and Apache Hadoop seems to be somewhat of a "no mans
> land"; a lot of people using a lot of different versions.
>
> Does anyone have any insight they could share about how to approach
> choosing the best JDK release? (I'm a total Java newb, so any info /
> further reading you guys can provide is appreciated.)
>
> Thanks.
>
> sf
>
>
>
Re: Java version with Hadoop 2.0
Posted by SF Hadoop <sf...@gmail.com>.
I hadn't. Thank you!!! Very helpful.
Andy
On Wed, Oct 9, 2013 at 2:25 PM, Patai Sangbutsarakum <
Patai.Sangbutsarakum@turn.com> wrote:
> maybe you've already seen this.
>
> http://wiki.apache.org/hadoop/HadoopJavaVersions
>
>
> On Oct 9, 2013, at 2:16 PM, SF Hadoop <sf...@gmail.com>
> wrote:
>
> I am preparing to deploy multiple cluster / distros of Hadoop for
> testing / benchmarking.
>
> In my research I have noticed discrepancies in the version of the JDK
> that various groups are using. Example: Hortonworks is suggesting
> JDK6u31, CDH recommends either 6 or 7 providing you stick to some
> guidelines for each and Apache Hadoop seems to be somewhat of a "no mans
> land"; a lot of people using a lot of different versions.
>
> Does anyone have any insight they could share about how to approach
> choosing the best JDK release? (I'm a total Java newb, so any info /
> further reading you guys can provide is appreciated.)
>
> Thanks.
>
> sf
>
>
>
Re: Java version with Hadoop 2.0
Posted by SF Hadoop <sf...@gmail.com>.
I hadn't. Thank you!!! Very helpful.
Andy
On Wed, Oct 9, 2013 at 2:25 PM, Patai Sangbutsarakum <
Patai.Sangbutsarakum@turn.com> wrote:
> maybe you've already seen this.
>
> http://wiki.apache.org/hadoop/HadoopJavaVersions
>
>
> On Oct 9, 2013, at 2:16 PM, SF Hadoop <sf...@gmail.com>
> wrote:
>
> I am preparing to deploy multiple cluster / distros of Hadoop for
> testing / benchmarking.
>
> In my research I have noticed discrepancies in the version of the JDK
> that various groups are using. Example: Hortonworks is suggesting
> JDK6u31, CDH recommends either 6 or 7 providing you stick to some
> guidelines for each and Apache Hadoop seems to be somewhat of a "no mans
> land"; a lot of people using a lot of different versions.
>
> Does anyone have any insight they could share about how to approach
> choosing the best JDK release? (I'm a total Java newb, so any info /
> further reading you guys can provide is appreciated.)
>
> Thanks.
>
> sf
>
>
>
Re: Java version with Hadoop 2.0
Posted by Patai Sangbutsarakum <Pa...@turn.com>.
maybe you've already seen this.
http://wiki.apache.org/hadoop/HadoopJavaVersions
On Oct 9, 2013, at 2:16 PM, SF Hadoop <sf...@gmail.com>>
wrote:
I am preparing to deploy multiple cluster / distros of Hadoop for testing / benchmarking.
In my research I have noticed discrepancies in the version of the JDK that various groups are using. Example: Hortonworks is suggesting JDK6u31, CDH recommends either 6 or 7 providing you stick to some guidelines for each and Apache Hadoop seems to be somewhat of a "no mans land"; a lot of people using a lot of different versions.
Does anyone have any insight they could share about how to approach choosing the best JDK release? (I'm a total Java newb, so any info / further reading you guys can provide is appreciated.)
Thanks.
sf
Re: Java version with Hadoop 2.0
Posted by Patai Sangbutsarakum <Pa...@turn.com>.
maybe you've already seen this.
http://wiki.apache.org/hadoop/HadoopJavaVersions
On Oct 9, 2013, at 2:16 PM, SF Hadoop <sf...@gmail.com>>
wrote:
I am preparing to deploy multiple cluster / distros of Hadoop for testing / benchmarking.
In my research I have noticed discrepancies in the version of the JDK that various groups are using. Example: Hortonworks is suggesting JDK6u31, CDH recommends either 6 or 7 providing you stick to some guidelines for each and Apache Hadoop seems to be somewhat of a "no mans land"; a lot of people using a lot of different versions.
Does anyone have any insight they could share about how to approach choosing the best JDK release? (I'm a total Java newb, so any info / further reading you guys can provide is appreciated.)
Thanks.
sf
Re: Java version with Hadoop 2.0
Posted by Patai Sangbutsarakum <Pa...@turn.com>.
maybe you've already seen this.
http://wiki.apache.org/hadoop/HadoopJavaVersions
On Oct 9, 2013, at 2:16 PM, SF Hadoop <sf...@gmail.com>>
wrote:
I am preparing to deploy multiple cluster / distros of Hadoop for testing / benchmarking.
In my research I have noticed discrepancies in the version of the JDK that various groups are using. Example: Hortonworks is suggesting JDK6u31, CDH recommends either 6 or 7 providing you stick to some guidelines for each and Apache Hadoop seems to be somewhat of a "no mans land"; a lot of people using a lot of different versions.
Does anyone have any insight they could share about how to approach choosing the best JDK release? (I'm a total Java newb, so any info / further reading you guys can provide is appreciated.)
Thanks.
sf
Re: Java version with Hadoop 2.0
Posted by Patai Sangbutsarakum <Pa...@turn.com>.
maybe you've already seen this.
http://wiki.apache.org/hadoop/HadoopJavaVersions
On Oct 9, 2013, at 2:16 PM, SF Hadoop <sf...@gmail.com>>
wrote:
I am preparing to deploy multiple cluster / distros of Hadoop for testing / benchmarking.
In my research I have noticed discrepancies in the version of the JDK that various groups are using. Example: Hortonworks is suggesting JDK6u31, CDH recommends either 6 or 7 providing you stick to some guidelines for each and Apache Hadoop seems to be somewhat of a "no mans land"; a lot of people using a lot of different versions.
Does anyone have any insight they could share about how to approach choosing the best JDK release? (I'm a total Java newb, so any info / further reading you guys can provide is appreciated.)
Thanks.
sf