Ok, so after you set jmx-manager-start=true, you don't get this this NPE
anymore?

I am not very familiar with the code path you mentioned since it's been
there for a long time and haven't been changed recently. Will investigate
more if this is a blocking issue for you.

On Thu, Feb 23, 2017 at 8:48 AM, Vahram Aharonyan <vaharon...@vmware.com>
wrote:

> Hi Jinmei,
>
>
>
> Actually we are trying to have some control over this and have opportunity
> to stopManager if needed.
>
>
>
> Anyways, this is not so principal at the moment and I followed your hint,
> removed starManager calling and passed “jmx-manager-start=true” to both
> gemfire.locator.properties and Cache creation routine. Afterwards I observe
> that any call like managementService.getDistributedSystemMXBean() returns
> null, as MBeanJMXAdapter. localGemFireMBean is again empty.
>
>
>
> So with in Geode MBeanJMXAdapter. localGemFireMBean somehow is not getting
> filled after cache creation… And actually this was the cause of
> NullPointerException in startManager as well. From Geode code I see that
> only items are put into this Map only from MBeanJMXAdapter.registerMBean()
> method. But I guess this flow should be executed after cache creation while
> Regions are created, nodes connected, etc., is not it?
>
> Or should I take care of this separately?
>
>
>
> Thanks,
>
> Vahram
>
>
>
> *From:* Jinmei Liao [mailto:jil...@pivotal.io]
> *Sent:* Wednesday, February 22, 2017 12:58 PM
>
> *To:* user@geode.apache.org
> *Subject:* Re: NullPointerException during SystemManagementService.
> startManager
>
>
>
> Can you let us know the use case where you need to configure the locator
> with .set("jmx-manager-start", "false") and then call
> ManagementService.startManager manually?
>
>
>
> On Wed, Feb 22, 2017 at 9:51 AM, Vahram Aharonyan <vaharon...@vmware.com>
> wrote:
>
> Hi Anthony,
>
>
>
> Currently I’m using Geode 1.1.0 released last week, but actually saw this
> problem previously with geode-1.0.0-incubating.M3 as well.
>
> BTW, I have not hit this issue with gemfire 8.2.0.6 used before that.
>
>
>
> Thanks,
>
> Vahram.
>
>
>
> *From:* Anthony Baker [mailto:aba...@pivotal.io]
> *Sent:* Wednesday, February 22, 2017 8:41 AM
> *To:* user@geode.apache.org
> *Subject:* Re: NullPointerException during SystemManagementService.
> startManager
>
>
>
> What version of Geode are you using?
>
>
>
> On Feb 22, 2017, at 12:09 AM, Vahram Aharonyan <vaharon...@vmware.com>
> wrote:
>
>
>
> Hi All,
>
>
>
> We are getting java.lang.NullPointerException while trying to start JMX
> Manager Node by invoking ManagementService.startManager:
>
>
>
> org.apache.geode.management.ManagementException:
> java.lang.NullPointerException
>
>         at org.apache.geode.management.internal.FederatingManager.
> startManager(FederatingManager.java:139)
>
>         at org.apache.geode.management.internal.SystemManagementService.
> startManager(SystemManagementService.java:467)
>
> Caused by: java.lang.NullPointerException
>
>         at org.apache.geode.management.internal.MemberMessenger.
> broadcastManagerInfo(MemberMessenger.java:64)
>
>         at org.apache.geode.management.internal.FederatingManager.
> startManager(FederatingManager.java:132)
>
>         ... 45 more
>
>
>
> This seems to be due to MBeanJMXAdapter. localGemFireMBean being empty by
> that point.
>
>
>
> Please note that before startManager call from Java code gemfire locator
> was successfully started, cache was created, necessary Regions were created
> using this configuration:
>
>
>
>                         .set("jmx-manager", "true")
>
>                         .set("jmx-manager-start", "false")
>
>
>
> Could you please let us know whether we miss something in configuration or
> anything else need to be performed before starting JMX manager Node
> dynamically?
>
>
>
> Thanks,
>
> Vahram.
>
>
>
>
>
>
>
> --
>
> Cheers
>
>
>
> Jinmei
>



-- 
Cheers

Jinmei

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