Ufuk, Thanks for replying ! Aljoscha, can you please assist with the questions below?
Thanks, Liron -----Original Message----- From: Ufuk Celebi [mailto:u...@apache.org] Sent: Friday, December 15, 2017 3:06 PM To: Netzer, Liron [ICG-IT] Cc: user@flink.apache.org Subject: Re: Flink State monitoring Hey Liron, unfortunately, there are no built-in metrics related to state. In general, exposing the actual values as metrics is problematic, but exposing summary statistics would be a good idea. I'm not aware of a good work around at the moment that would work in the general case (taking into account state restore, etc.). Let me pull in Aljoscha (cc'd) who knows the state backend internals well. @Aljoscha: 1) Are there any plans to expose keyed state related metrics (like number of keys)? 2) Is there a way to work around the lack of these metrics in 1.3? – Ufuk On Thu, Dec 14, 2017 at 10:55 AM, Netzer, Liron <liron.net...@citi.com> wrote: > Hi group, > > > > We are using Flink keyed state in several operators. > > Is there an easy was to expose the data that is stored in the state, i.e. > the key and the values? > > This is needed for both monitoring as well as debugging. We would like > to understand how many key+values are stored in each state and also to > view the data itself. > > I know that there is the "Queryable state" option, but this is still > in Beta, and doesn't really give us what we want easily. > > > > > > *We are using Flink 1.3.2 with Java. > > > > Thanks, > > Liron
