I think in general our website documentation is not complete and I think it would be great if we could improve it significantly. For instance, there is no place where all configurations are described properly (other than reading the code). I think that PRs and help in improving the doc would be highly appreciated.
Thanks, Marco On Tue, 16 Apr 2019, 05:13 Meisam Fathi, <meisam.fa...@gmail.com> wrote: > Hi Peter, > > Are you using ZooKeeper for recovery store? > If yes, in conf/livy.conf, is > livy.server.recovery.zk-state-store.key-prefix > set to different values in different Livy instances? If not, all of Livy > instances will read/write the recovery data from/to the same path, which is > default is /livy/v1 by default. > > @dev mailing list: > This behavior is not documented in livy.conf nor on the website. It might > be a good idea to document it somewhere. > > Thanks, > Meisam > > On Fri, Apr 12, 2019 at 3:20 PM Meisam Fathi <meisam.fa...@gmail.com> > wrote: > > > Hi Peter, > > > > Livy 0.6 has a new feature to give each session a name: > > https://github.com/apache/incubator-livy/pull/48 > > > > Would this feature be useful in your usecase? > > > > Thanks, > > Meisam > > > > On Fri, Apr 12, 2019, 8:51 AM Peter Wicks (pwicks) <pwi...@micron.com> > > wrote: > > > >> Greetings, > >> > >> > >> > >> I have a custom service that connects to Livy, v0.4 soon to be v0.5 once > >> we go to HDP3. If sessions already exist it logs the session ID’s and > >> starts using them, if sessions don’t exist it creates new ones. The > problem > >> is the account used to launch the Livy sessions is not unique to this > >> service, nor is the kind of session. So sometimes it grabs other > people’s > >> sessions and absconds off with them. Also, there are multiple instances > of > >> the service, running under the same account, and they are not supposed > to > >> use each other’s sessions… that’s not working out so well. > >> > >> > >> > >> The service names the sessions, but I can’t find any way to retrieve > >> detailed session data so that I can update the service to check if the > Livy > >> Session belongs to the service or not. > >> > >> > >> > >> I found some older comments 2016/2017 about retrieving Livy sessions by > >> name. I don’t really need that, I just want to be able to read the name > >> through the regular sessions REST call. > >> > >> > >> > >> Any REST calls I missed, or undocumented calls… that can help? > >> > >> > >> > >> Thanks, > >> > >> Peter > >> > >> > >> > >> Ref: > >> > https://github.com/meisam/livy/wiki/Design-doc-for-Livy-41:-Accessing-sessions-by-name > , > >> https://issues.cloudera.org/browse/LIVY-41 > >> > >> > >> > >> > >> > > >
