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 connect to the web UI after I bring up the master daemon
using sbin/start-master.sh It looks like this is an issue due to the
threadpool settings used by the embedded in the master daemon.
>
> 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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>>>>>>>
>>>>>>>
>>>>>>
>>>>>
>>>>
>>>>
>>>>
>>>
>>>
>>
>
