There are 4 tests throwing NPEs in Jenkins due to:
Layout layout = Logger.getRootLogger().getAppender("CONSOLE")
.getLayout();
Is this a known issue? Any workaround?
-Jordan
> On Sep 21, 2017, at 9:17 AM, Jordan Zimmerman <[email protected]>
> wrote:
>
> In LeaderSessionTracker.java there is this bit of code:
>
> if (!localSessionsEnabled
> || (getServerIdFromSessionId(sessionId) == serverId)) {
> throw new SessionExpiredException();
> }
>
> "serverId" is a long. This can only work if Server IDs are 255 or less. I
> realize this is in the docs. But is it enforced? See:
> https://issues.apache.org/jira/browse/ZOOKEEPER-2503
> <https://issues.apache.org/jira/browse/ZOOKEEPER-2503>
>
>
>
>> On Sep 20, 2017, at 3:10 PM, Raúl Gutiérrez Segalés <[email protected]
>> <mailto:[email protected]>> wrote:
>>
>> On 20 September 2017 at 12:54, Camille Fournier <[email protected]
>> <mailto:[email protected]>> wrote:
>> Ok let's take this back to either public mailing list or jira. I'd write up
>> thoughts on jira and ask there+ml to look. I'll try to look tonight
>>
>> Thanks Camille!
>>
>> Also, I merged this originally so I will work with Jordan on getting this
>> fixed. Let me know
>> when you have a write up of your proposed solution and I'll take a look.
>> Thanks!
>>
>>
>> -rgs
>>
>>
>>
>> On Sep 20, 2017 3:52 PM, "Jordan Zimmerman" <[email protected]
>> <mailto:[email protected]>>
>> wrote:
>>
>> > I'd like to fix it as my company and probably many others are now using it
>> > in production. The question is how to fix it safely and correctly. Is email
>> > the best way to discuss this? Jira? Something else?
>> >
>> > I must say that there appears to be a trivial fix but I need the ZK
>> > committers to think about this. In
>> > SessionTrackerImpl#initializeNextSession()
>> > only some of the server ID bits are used. We could easily just mask the 2
>> > high bits as well. But, what are the implications of this? Where is this
>> > serverId byte used? What must be double checked?
>> >
>> > -Jordan
>> >
>> > On Sep 20, 2017, at 2:46 PM, Camille Fournier <[email protected]
>> > <mailto:[email protected]>> wrote:
>> >
>> > Would you rather roll back the feature or put in a fix?
>> >
>> > On Sep 20, 2017 3:44 PM, "Jordan Zimmerman" <[email protected]
>> > <mailto:[email protected]>>
>> > wrote:
>> >
>> >> Hey Folks,
>> >>
>> >> This is very serious. Please - let's discuss immediately. I'm not certain
>> >> how to fix this.
>> >>
>> >> -JZ
>> >>
>> >> On Sep 20, 2017, at 2:17 PM, Jordan Zimmerman <[email protected]
>> >> <mailto:[email protected]>>
>> >> wrote:
>> >>
>> >> See: https://issues.apache.org/jira/browse/ZOOKEEPER-2901
>> >> <https://issues.apache.org/jira/browse/ZOOKEEPER-2901>
>> >>
>> >> It appears that the high order byte of a session ID is reserved for the
>> >> ServerID. I don't know how I could have missed this or how this got by
>> >> code
>> >> review, but Container Nodes and TTL nodes are using the 2 high bits to
>> >> denote container/TTL. I'll work on a fix ASAP. But, can someone validate
>> >> this?
>> >>
>> >> -Jordan
>> >>
>> >>
>> >>
>> >
>>
>
