FAQ
Hello all,

I am trying to install HBase and while going through the requirements
(link below), it asked me to apply HDFS-630 patch. The latest 2 patches are
for Hadoop 0.21. I am using version 0.20. For this version, should I apply
Todd Lipcon's patch at
https://issues.apache.org/jira/secure/attachment/12430230/hdfs-630-0.20.txt.
Would this be the right patch to apply? The directory structures have
changed from 0.20 to 0.21.

http://hadoop.apache.org/hbase/docs/current/api/overview-summary.html#requirements


Thank you.

Regards,
Raghava.

Search Discussions

  • Todd Lipcon at May 14, 2010 at 3:51 am
    Hi Raghava,

    Yes, that's a patch targeted at 0.20, but I'm not certain whether it applies
    on the vanilla 0.20 code or not. If you'd like a version of Hadoop that
    already has it applied and tested, I'd recommend using Cloudera's CDH2.

    -Todd
    On Thu, May 13, 2010 at 7:59 PM, Raghava Mutharaju wrote:

    Hello all,

    I am trying to install HBase and while going through the requirements
    (link below), it asked me to apply HDFS-630 patch. The latest 2 patches are
    for Hadoop 0.21. I am using version 0.20. For this version, should I apply
    Todd Lipcon's patch at
    https://issues.apache.org/jira/secure/attachment/12430230/hdfs-630-0.20.txt
    .
    Would this be the right patch to apply? The directory structures have
    changed from 0.20 to 0.21.


    http://hadoop.apache.org/hbase/docs/current/api/overview-summary.html#requirements


    Thank you.

    Regards,
    Raghava.


    --
    Todd Lipcon
    Software Engineer, Cloudera
  • Raghava Mutharaju at May 14, 2010 at 3:57 am
    Hello Todd,

    Thank you for the reply. In the cluster I use here, apache Hadoop is
    installed. So I have to use that. I am trying out HBase on my laptop first.
    Even though I install CDH2, it won't be useful because on the cluster, I
    have to work with apache Hadoop. Since version 0.21 is still in development,
    there should be a HDFS-630 patch for the current stable release of Hadoop
    isn't it?

    Regards,
    Raghava.
    On Thu, May 13, 2010 at 11:50 PM, Todd Lipcon wrote:

    Hi Raghava,

    Yes, that's a patch targeted at 0.20, but I'm not certain whether it
    applies
    on the vanilla 0.20 code or not. If you'd like a version of Hadoop that
    already has it applied and tested, I'd recommend using Cloudera's CDH2.

    -Todd

    On Thu, May 13, 2010 at 7:59 PM, Raghava Mutharaju <
    m.vijayaraghava@gmail.com> wrote:
    Hello all,

    I am trying to install HBase and while going through the requirements
    (link below), it asked me to apply HDFS-630 patch. The latest 2 patches are
    for Hadoop 0.21. I am using version 0.20. For this version, should I apply
    Todd Lipcon's patch at
    https://issues.apache.org/jira/secure/attachment/12430230/hdfs-630-0.20.txt
    .
    Would this be the right patch to apply? The directory structures have
    changed from 0.20 to 0.21.


    http://hadoop.apache.org/hbase/docs/current/api/overview-summary.html#requirements

    Thank you.

    Regards,
    Raghava.


    --
    Todd Lipcon
    Software Engineer, Cloudera
  • Todd Lipcon at May 14, 2010 at 4:04 am

    On Thu, May 13, 2010 at 8:56 PM, Raghava Mutharaju wrote:

    Hello Todd,

    Thank you for the reply. In the cluster I use here, apache Hadoop is
    installed. So I have to use that. I am trying out HBase on my laptop first.
    Even though I install CDH2, it won't be useful because on the cluster, I
    have to work with apache Hadoop. Since version 0.21 is still in
    development,
    there should be a HDFS-630 patch for the current stable release of Hadoop
    isn't it?
    No, it was not considered for release in Hadoop 0.20.X because it breaks
    wire compatibility, and though I've done a workaround to avoid issues
    stemming from that, it would be unlikely to pass a backport vote.

    -Todd
    On Thu, May 13, 2010 at 11:50 PM, Todd Lipcon wrote:

    Hi Raghava,

    Yes, that's a patch targeted at 0.20, but I'm not certain whether it
    applies
    on the vanilla 0.20 code or not. If you'd like a version of Hadoop that
    already has it applied and tested, I'd recommend using Cloudera's CDH2.

    -Todd

    On Thu, May 13, 2010 at 7:59 PM, Raghava Mutharaju <
    m.vijayaraghava@gmail.com> wrote:
    Hello all,

    I am trying to install HBase and while going through the
    requirements
    (link below), it asked me to apply HDFS-630 patch. The latest 2 patches are
    for Hadoop 0.21. I am using version 0.20. For this version, should I apply
    Todd Lipcon's patch at
    https://issues.apache.org/jira/secure/attachment/12430230/hdfs-630-0.20.txt
    .
    Would this be the right patch to apply? The directory structures have
    changed from 0.20 to 0.21.

    http://hadoop.apache.org/hbase/docs/current/api/overview-summary.html#requirements

    Thank you.

    Regards,
    Raghava.


    --
    Todd Lipcon
    Software Engineer, Cloudera


    --
    Todd Lipcon
    Software Engineer, Cloudera
  • Raghava Mutharaju at May 14, 2010 at 4:12 am
    Hello Todd,

    Oh, then isn't it a bit contradictory to the instructions on HBase overview
    page.

    http://hadoop.apache.org/hbase/docs/current/api/overview-summary.html#requirements

    It says that the current version of HBase works only with 0.20.X and asks
    users to apply the patch HDFS-630 but that patch is not available for
    0.20.X. Is there any work around for this? Is that patch really required?

    Thank you.

    Regards,
    Raghava.
    On Fri, May 14, 2010 at 12:03 AM, Todd Lipcon wrote:

    On Thu, May 13, 2010 at 8:56 PM, Raghava Mutharaju <
    m.vijayaraghava@gmail.com> wrote:
    Hello Todd,

    Thank you for the reply. In the cluster I use here, apache Hadoop is
    installed. So I have to use that. I am trying out HBase on my laptop first.
    Even though I install CDH2, it won't be useful because on the cluster, I
    have to work with apache Hadoop. Since version 0.21 is still in
    development,
    there should be a HDFS-630 patch for the current stable release of Hadoop
    isn't it?
    No, it was not considered for release in Hadoop 0.20.X because it breaks
    wire compatibility, and though I've done a workaround to avoid issues
    stemming from that, it would be unlikely to pass a backport vote.

    -Todd
    On Thu, May 13, 2010 at 11:50 PM, Todd Lipcon wrote:

    Hi Raghava,

    Yes, that's a patch targeted at 0.20, but I'm not certain whether it
    applies
    on the vanilla 0.20 code or not. If you'd like a version of Hadoop that
    already has it applied and tested, I'd recommend using Cloudera's CDH2.

    -Todd

    On Thu, May 13, 2010 at 7:59 PM, Raghava Mutharaju <
    m.vijayaraghava@gmail.com> wrote:
    Hello all,

    I am trying to install HBase and while going through the
    requirements
    (link below), it asked me to apply HDFS-630 patch. The latest 2
    patches
    are
    for Hadoop 0.21. I am using version 0.20. For this version, should I apply
    Todd Lipcon's patch at
    https://issues.apache.org/jira/secure/attachment/12430230/hdfs-630-0.20.txt
    .
    Would this be the right patch to apply? The directory structures have
    changed from 0.20 to 0.21.

    http://hadoop.apache.org/hbase/docs/current/api/overview-summary.html#requirements

    Thank you.

    Regards,
    Raghava.


    --
    Todd Lipcon
    Software Engineer, Cloudera


    --
    Todd Lipcon
    Software Engineer, Cloudera
  • Raghava Mutharaju at May 14, 2010 at 4:20 am
    oops, sorry, by really required I meant, would that problem arise only in
    any special situations or is it required for normal operations also.

    Regards,
    Raghava.
    On Fri, May 14, 2010 at 12:11 AM, Raghava Mutharaju wrote:

    Hello Todd,

    Oh, then isn't it a bit contradictory to the instructions on HBase overview
    page.



    http://hadoop.apache.org/hbase/docs/current/api/overview-summary.html#requirements

    It says that the current version of HBase works only with 0.20.X and asks
    users to apply the patch HDFS-630 but that patch is not available for
    0.20.X. Is there any work around for this? Is that patch really required?

    Thank you.

    Regards,
    Raghava.

    On Fri, May 14, 2010 at 12:03 AM, Todd Lipcon wrote:

    On Thu, May 13, 2010 at 8:56 PM, Raghava Mutharaju <
    m.vijayaraghava@gmail.com> wrote:
    Hello Todd,

    Thank you for the reply. In the cluster I use here, apache Hadoop is
    installed. So I have to use that. I am trying out HBase on my laptop first.
    Even though I install CDH2, it won't be useful because on the cluster, I
    have to work with apache Hadoop. Since version 0.21 is still in
    development,
    there should be a HDFS-630 patch for the current stable release of Hadoop
    isn't it?
    No, it was not considered for release in Hadoop 0.20.X because it breaks
    wire compatibility, and though I've done a workaround to avoid issues
    stemming from that, it would be unlikely to pass a backport vote.

    -Todd
    On Thu, May 13, 2010 at 11:50 PM, Todd Lipcon wrote:

    Hi Raghava,

    Yes, that's a patch targeted at 0.20, but I'm not certain whether it
    applies
    on the vanilla 0.20 code or not. If you'd like a version of Hadoop
    that
    already has it applied and tested, I'd recommend using Cloudera's
    CDH2.
    -Todd

    On Thu, May 13, 2010 at 7:59 PM, Raghava Mutharaju <
    m.vijayaraghava@gmail.com> wrote:
    Hello all,

    I am trying to install HBase and while going through the
    requirements
    (link below), it asked me to apply HDFS-630 patch. The latest 2
    patches
    are
    for Hadoop 0.21. I am using version 0.20. For this version, should I apply
    Todd Lipcon's patch at
    https://issues.apache.org/jira/secure/attachment/12430230/hdfs-630-0.20.txt
    .
    Would this be the right patch to apply? The directory structures
    have
    changed from 0.20 to 0.21.

    http://hadoop.apache.org/hbase/docs/current/api/overview-summary.html#requirements

    Thank you.

    Regards,
    Raghava.


    --
    Todd Lipcon
    Software Engineer, Cloudera


    --
    Todd Lipcon
    Software Engineer, Cloudera

Related Discussions

Discussion Navigation
viewthread | post
Discussion Overview
groupcommon-user @
categorieshadoop
postedMay 14, '10 at 2:59a
activeMay 14, '10 at 4:20a
posts6
users2
websitehadoop.apache.org...
irc#hadoop

2 users in discussion

Raghava Mutharaju: 4 posts Todd Lipcon: 2 posts

People

Translate

site design / logo © 2022 Grokbase