[
https://issues.apache.org/jira/browse/KNOX-163?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13778810#comment-13778810
]
Dilli Arumugam commented on KNOX-163:
-------------------------------------
Yes, noticed that and we have to and could add a null check there.
But, when the call reaches that point, the request is expected to have
user.name or delegation token string in the query string. The absence of that
indicates a problem in some upper layer.
I think we may have to throw some other exception if we detect query string to
be null here rather than continue with the call downstream.
Let be debug it and provide a more detailed update.
> job submission through knox-webchat results in NullPointerException
> -------------------------------------------------------------------
>
> Key: KNOX-163
> URL: https://issues.apache.org/jira/browse/KNOX-163
> Project: Apache Knox
> Issue Type: Bug
> Affects Versions: 0.3.0
> Reporter: Dilli Arumugam
> Fix For: 0.3.0
>
>
> Hitting a NullPointerException while trying to submit a job through knox ->
> webhcat.
> The same use case works when there is no knox in path.
> Curl session:
> curl -k -i -u guest:guest-password -X POST \
> -d jar=/user/guest/tmp/test/lib/wordcount.jar -d class=WordCountTem\
> -d arg=/user/guest/tmp/test/input -d arg=/user/guest/tmp/test/output \
> https://localhost:8443/gateway/sandbox/templeton/v1/mapreduce/jar
> Pasting what I think is relevant from the stack trace on shown on console:
> <h3>Caused by:</h3><pre>java.lang.NullPointerException
> at
> org.apache.hadoop.gateway.dispatch.HttpClientDispatch.executeRequest(HttpClientDispatch.java:83)
> at
> org.apache.hadoop.gateway.dispatch.HttpClientDispatch.doPost(HttpClientDispatch.java:262)
> at
> org.apache.hadoop.gateway.dispatch.AbstractGatewayDispatch$PostAdapter.doMethod(AbstractGatewayDispatch.java:141)
> at
> org.apache.hadoop.gateway.dispatch.AbstractGatewayDispatch.doFilter(AbstractGatewayDispatch.java:64)
> at
> org.apache.hadoop.gateway.filter.AbstractGatewayFilter.doFilter(AbstractGatewayFilter.java:59)
> at
> org.apache.hadoop.gateway.GatewayFilter$Holder.doFilter(GatewayFilter.java:259)
> It appears that query string happens to be null.
> The query string is not expected to be null here.
> Would try to debug tomorrow.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira
