Your issue looks totally fine. Thank you so much. Best, moon
On Wed, Jun 17, 2015 at 5:31 AM John Omernik <[email protected]> wrote: > I have created an issue, but I am a neophyte at Jira and how to use it on > projects like this. Can you review to make sure I got all the fields > correct? Thanks! > > https://issues.apache.org/jira/browse/ZEPPELIN-113 > > > > On Tue, Jun 16, 2015 at 10:26 PM, moon soo Lee <[email protected]> wrote: > >> Hi, >> >> Thanks for the feedback. >> >> I think it really make sense to have some kind of heartbeat to keep >> connection alive in such environment. >> Could you create an issue for it? >> >> Thanks, >> moon >> >> >> On Tue, Jun 16, 2015 at 10:16 AM John Omernik <[email protected]> wrote: >> >>> Hello - >>> >>> I am playing around with Zeppelin in a mesos/docker setup and am using >>> HAProxy/mesosDNS to connect to my instances. >>> >>> For those who want a cliff notes on this, HAProxy takes apps started in >>> marathon and routes them to appropriate host on the mesos cluster, the >>> mesos-DNS allows me to have hosts connect directly to the instances running >>> in Docker. >>> >>> One thing I've noticed (and this is an issue with the HAProxy stuff in >>> general, not sure Zeppelin) is if the TCP connection running through >>> HAProxy is long running with not a lot of activity, HAProxy will think the >>> connection is dead and terminate it. This can be a pain for say long >>> running queries with a Hive Thrift server. >>> >>> In Zeppelin, it appears that the problem manifests itself when there is >>> no activity in a notebook, and the "Connected (with a green box)" in the >>> Upper right changes to "Disconnected (with a red box)" >>> >>> Basically HAProxy closes the connection. To fix, I just refresh, and >>> things work fine, but it's annoying to say the least. Would it be possibly >>> to setup HTTP keep alives on these connections? I am not an expert on web >>> servers being used in Zeppelin, but having an option to be able to send >>> keep alives when the notebook is open ever X seconds if no other activity >>> would solve this problem well. I know this may see minor, but there may be >>> others using it in an environment with HAProxy or other similar setups, and >>> if the effort is low on something like, it would be greatly appreciated. >>> >> >
