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From Ted Yu <yuzhih...@gmail.com>
Subject Re: version check for hbase-default.xml
Date Fri, 18 Feb 2011 00:03:11 GMT
An alternative is to check the value of a well-known config parameter which
has changed from 20.6 (0.89) to 0.90.x

After almost all 0.20.6 and 0.89 deployments are gone in the world, toggle
to version check.

On Thu, Feb 17, 2011 at 3:51 PM, Ted Yu <yuzhihong@gmail.com> wrote:

> Your change cannot distinguish missing hbase-default.xml and the old
> hbase-default.xml
> This makes debugging hard, considering what I said in my first email.
>
>
> On Thu, Feb 17, 2011 at 3:26 PM, Todd Lipcon <todd@cloudera.com> wrote:
>
>> Then you've probably got another hbase-default somewhere on your
>> classpath.
>>
>>
>> On Thu, Feb 17, 2011 at 3:26 PM, Ted Yu <yuzhihong@gmail.com> wrote:
>>
>>> I checked the size of the packaged file which is the same as the build
>>> artifact:
>>>
>>> tyumac:hbase-0.90.1 tyu$ ls -l target/classes/hbase-default.xml
>>> -rw-r--r--  1 tyu  staff  23610 Feb 11 11:50
>>> target/classes/hbase-default.xml
>>>
>>> I also unpacked the file and saw the correct version.
>>>
>>>
>>> On Thu, Feb 17, 2011 at 3:17 PM, Todd Lipcon <todd@cloudera.com> wrote:
>>>
>>>> Where are you getting the hbase-defaults.xml file that you're packaging
>>>> into your jar?
>>>>
>>>> You need to take it out of the hbase jar that ships with 0.90.1 and
>>>> package that one -- my guess is you've packaged one from an older version.
>>>>
>>>> -Todd
>>>>
>>>> On Thu, Feb 17, 2011 at 3:01 PM, Ted Yu <yuzhihong@gmail.com> wrote:
>>>>
>>>>> We re-package hbase jar into the jar containing our classes.
>>>>>
>>>>> [sjc1-hadoop0.sjc1:hadoop 36789]jar tvf
>>>>> /usr/local/hadoop/sims/lib/flow-m2m_hbase_regr-38.jar | grep MetaSca
>>>>>  7030 Fri Feb 11 11:50:28 GMT+00:00 2011
>>>>> org/apache/hadoop/hbase/client/MetaScanner.class
>>>>>  2027 Fri Feb 11 11:50:28 GMT+00:00 2011
>>>>> org/apache/hadoop/hbase/client/MetaScanner$1.class
>>>>> [sjc1-hadoop0.sjc1:hadoop 36791]jar tvf
>>>>> /usr/local/hadoop/sims/lib/flow-m2m_hbase_regr-38.jar | grep default
|
>>>>> grep
>>>>> hbase
>>>>>  23610 Fri Feb 11 11:50:22 GMT+00:00 2011 hbase-default.xml
>>>>>
>>>>> If the above jar structure is incorrect, please comment.
>>>>>
>>>>> Using 0.90.1 jar as client, I saw:
>>>>>
>>>>> INFO [2011-02-17 06:52:23] (ExecUtil.java:261) -
>>>>> java.lang.RuntimeException: hbase-default.xml file seems to be for and
>>>>> old version of HBase (null), this version is 0.90.1
>>>>> INFO [2011-02-17 06:52:23] (ExecUtil.java:261) -       at
>>>>>
>>>>> org.apache.hadoop.hbase.HBaseConfiguration.checkDefaultsVersion(HBaseConfiguration.java:66)
>>>>> INFO [2011-02-17 06:52:23] (ExecUtil.java:261) -       at
>>>>>
>>>>> org.apache.hadoop.hbase.HBaseConfiguration.addHbaseResources(HBaseConfiguration.java:76)
>>>>> INFO [2011-02-17 06:52:23] (ExecUtil.java:261) -       at
>>>>>
>>>>> org.apache.hadoop.hbase.HBaseConfiguration.<init>(HBaseConfiguration.java:44)
>>>>> INFO [2011-02-17 06:52:23] (ExecUtil.java:261) -       at
>>>>>
>>>>> org.apache.hadoop.hbase.HBaseConfiguration.<init>(HBaseConfiguration.java:56)
>>>>>
>>>>> I looked at Configuration.java which has quiet mode setter. But the
>>>>> above
>>>>> exception happened in ctor.
>>>>>
>>>>> Please advise how I can troubleshoot this.
>>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> Todd Lipcon
>>>> Software Engineer, Cloudera
>>>>
>>>
>>>
>>
>>
>> --
>> Todd Lipcon
>> Software Engineer, Cloudera
>>
>
>

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