Hi,

           Is there a way to  provide minThreads and maxThreds  for
Threadpool through jetty.xml  for the jetty that is  used by spark Web
UI?

 I am hitting an issue  very similar to the  issue  described in
http://lifelongprogrammer.blogspot.com/2014/10/jetty-insufficient-threads-configured.html


I am unable to figure out the location where I can provide jetty.xml , so
that it is picked up by spark master daemon.

Thanks
Vasanth


On Mon, Feb 22, 2016 at 7:09 PM, Vasanth Bhat <vasb...@gmail.com> wrote:

> Thanks a lot robin.
>
> Doing a search on Goolge,  seems to indicate that I need to  control the
> minThreads and maxThreds  for Threadpool through jetty.xml
>
> But I am not able to find the jetty.xml in the spark installation.
>
> Thanks
> Vasanth
>
>
> On Mon, Feb 22, 2016 at 5:43 PM, Robin East <robin.e...@xense.co.uk>
> wrote:
>
>> I suspect that it is related to the warning in your master startup log:
>>
>> WARN AbstractConnector: insufficient threads configured
>>
>> I don’t know much about that area of Spark - maybe someone else on the
>> mailing list can comment - but it looks like the embedded Jetty web server
>> doesn’t have enough resources to do its job
>>
>>
>>
>>
>>
>> On 22 Feb 2016, at 12:04, Vasanth Bhat <vasb...@gmail.com> wrote:
>>
>> The port 4040 is *not* used.  No process is listening on 4040.
>>
>> As per the  logs,  8080 is used for WebUI.  The log mentions the below
>>
>> 16/02/19 03:07:32 INFO Utils: Successfully started service 'MasterUI' on
>> port 8080.
>> 16/02/19 03:07:32 INFO MasterWebUI: Started MasterWebUI at
>> http://127.0.0.1:8080
>>
>> However  I am not able to see any UI,  when I point the browser to
>> http://127.0.0.1:8080
>>
>>
>> The browser just  hangs.
>>
>> Thanks
>> Vasanth
>>
>> On Mon, Feb 22, 2016 at 4:53 PM, Robin East <robin.e...@xense.co.uk>
>> wrote:
>>
>>> port 4040 is the application UI but I think the OP is looking for the UI
>>> presented by the Spark master usually this would be 8080
>>>
>>>
>>>
>>>
>>>
>>> On 22 Feb 2016, at 11:00, Kayode Odeyemi <drey...@gmail.com> wrote:
>>>
>>> Try http://localhost:4040
>>>
>>> On Mon, Feb 22, 2016 at 8:23 AM, Vasanth Bhat <vasb...@gmail.com> wrote:
>>>
>>>> Thanks Gourav, Eduardo
>>>>
>>>> I tried  http://localhost:8080  and   http://OAhtvJ5MCA:8080/
>>>> <http://oahtvj5mca:8080/>  .  Both cases the forefox just hangs.
>>>>
>>>> Also I tried with lynx text based browser.   I get the message  "HTTP
>>>> request sent; waiting for response."  and it hangs as well.
>>>>
>>>> Is there way to enable debug logs in spark master service, to
>>>> understand what's going wrong?
>>>>
>>>>
>>>> Thanks
>>>> Vasanth
>>>>
>>>>
>>>>
>>>> On Fri, Feb 19, 2016 at 5:46 PM, Gourav Sengupta <
>>>> gourav.sengu...@gmail.com> wrote:
>>>>
>>>>> can you please try localhost:8080?
>>>>>
>>>>> Regards,
>>>>> Gourav Sengupta
>>>>>
>>>>> On Fri, Feb 19, 2016 at 11:18 AM, vasbhat <vasb...@gmail.com> wrote:
>>>>>
>>>>>> Hi,
>>>>>>
>>>>>>        I have installed the spark1.6 and  trying to start the master
>>>>>> (start-master.sh) and access the webUI.
>>>>>>
>>>>>> I get the following logs on running the start-master.sh
>>>>>>
>>>>>> Spark Command: /usr/jdk/instances/jdk1.8.0/jre/bin/java -cp
>>>>>>
>>>>>> /usr/local/spark-1.6.0-bin-hadoop2.6/conf/:/usr/local/spark-1.6.0-bin-hadoop2.6/lib/spark-assembly-1.6.0-hadoop2.6.0.jar:/usr/local/spark-1.6.0-bin-hadoop2.6/lib/datanucleus-api-jdo-3.2.6.jar:/usr/local/spark-1.6.0-bin-hadoop2.6/lib/datanucleus-rdbms-3.2.9.jar:/usr/local/spark-1.6.0-bin-hadoop2.6/lib/datanucleus-core-3.2.10.jar
>>>>>> -Xms4g -Xmx4g org.apache.spark.deploy.master.Master --ip OAhtvJ5MCA
>>>>>> --port
>>>>>> 7077 --webui-port 8080
>>>>>> ========================================
>>>>>> Using Spark's default log4j profile:
>>>>>> org/apache/spark/log4j-defaults.properties
>>>>>> 16/02/19 03:07:30 INFO Master: Registered signal handlers for [TERM,
>>>>>> HUP,
>>>>>> INT]
>>>>>> 16/02/19 03:07:30 WARN NativeCodeLoader: Unable to load native-hadoop
>>>>>> library for your platform... using builtin-java classes where
>>>>>> applicable
>>>>>> 16/02/19 03:07:31 INFO SecurityManager: Changing view acls to: sluser
>>>>>> 16/02/19 03:07:31 INFO SecurityManager: Changing modify acls to:
>>>>>> sluser
>>>>>> 16/02/19 03:07:31 INFO SecurityManager: SecurityManager:
>>>>>> authentication
>>>>>> disabled; ui acls disabled; users with view permissions: Set(sluser);
>>>>>> users
>>>>>> with modify permissions: Set(sluser)
>>>>>> 16/02/19 03:07:32 INFO Utils: Successfully started service
>>>>>> 'sparkMaster' on
>>>>>> port 7077.
>>>>>> 16/02/19 03:07:32 INFO Master: Starting Spark master at
>>>>>> spark://OAhtvJ5MCA:7077
>>>>>> 16/02/19 03:07:32 INFO Master: Running Spark version 1.6.0
>>>>>> 16/02/19 03:07:32 WARN AbstractConnector: insufficient threads
>>>>>> configured
>>>>>> for SelectChannelConnector@0.0.0.0:8080
>>>>>> 16/02/19 03:07:32 INFO Utils: Successfully started service 'MasterUI'
>>>>>> on
>>>>>> port 8080.
>>>>>> 16/02/19 03:07:32 INFO MasterWebUI: Started MasterWebUI at
>>>>>> http://127.0.0.1:8080
>>>>>> 16/02/19 03:07:32 WARN AbstractConnector: insufficient threads
>>>>>> configured
>>>>>> for SelectChannelConnector@OAhtvJ5MCA:6066
>>>>>> 16/02/19 03:07:32 INFO Utils: Successfully started service on port
>>>>>> 6066.
>>>>>> 16/02/19 03:07:32 INFO StandaloneRestServer: Started REST server for
>>>>>> submitting applications on port 6066
>>>>>> 16/02/19 03:07:33 INFO Master: I have been elected leader! New state:
>>>>>> ALIVE
>>>>>>
>>>>>> ------------------------------
>>>>>>  Through netstat I can see that port 8080 is Listening
>>>>>>  Now when I start firefox and access http://127.0.0.1:8080  ,
>>>>>> firefox just
>>>>>> hangs with the message
>>>>>>
>>>>>> Waiting for "127.0.0.1"   and  does not connect to UI.
>>>>>>
>>>>>>  How do I enable debug for the spark master daemon, to understand
>>>>>> what's
>>>>>> happening.
>>>>>>
>>>>>> Thanks
>>>>>> Vasanth
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> --
>>>>>> View this message in context:
>>>>>> http://apache-spark-user-list.1001560.n3.nabble.com/Re-Accessing-Web-UI-tp23029p26276.html
>>>>>> Sent from the Apache Spark User List mailing list archive at
>>>>>> Nabble.com <http://nabble.com/>.
>>>>>>
>>>>>> ---------------------------------------------------------------------
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>>>>>> For additional commands, e-mail: user-h...@spark.apache.org
>>>>>>
>>>>>>
>>>>>
>>>>
>>>
>>>
>>>
>>
>>
>

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