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From Eric Yang <>
Subject Re: about hicc installation
Date Mon, 12 Dec 2011 07:44:46 GMT
Hi Liuhang,

You will need to have MySQL Connector/J jar file put into
CHUKWA_HOME/lib directory, and configure to have:


both properties configured.  In addition, also specify jdbc.conf to
have cluster name maps to mysql url.  For example,


Detail instruction is also on Chukwa 0.4 document:

On Sun, Dec 11, 2011 at 10:13 PM, zhangliuhang <> wrote:
> Hi, Eric,
>        Thanks for your help, I have set up hicc successfully, but I encounter another
problem that my database seemed to be nothing,
> The hicc show me "no data available", I don't know how to download data from the hdfs
to mysql, could you help me ?
> Liuhang Zhang
> -----Original Message-----
> From: []
On Behalf Of Eric Yang
> Sent: 2011年12月12日 13:10
> To:
> Subject: Re: about hicc installation
> For HICC, just run it as ./bin/chukwa hicc.  There is no need to deploy it to Tomcat.
 Remove it from apache-tomcat webapp directory and stop apache tomcat.  Make sure HADOOP_CONF_DIR
is in class path by adding to like this:
> regards,
> Eric
> On Sun, Dec 11, 2011 at 5:18 PM, wang zhihao <> wrote:
>> HI Eric
>> I just try to install hicc, but I have encounter some troubles. Follows are my operations:
>> (1) copy hicc.war to /opt/apache-tomcat-6.0.18/webapps/
>> (2) /chukwa/bin/ start
>> but it didn't work,here is the error:
>> java.lang.NullPointerException
>>        at
>> Finally I found that it could not load the hadoop configration from
>> the some files like core-site.xml, could you tell me what should I do to solve this
problem? Or could you show me your install flow about hicc? Thanks.
>> Regards
>> Zhang liuhang

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