Thank you all for your help. *Alex Rovner* *Director, Data Engineering * *o:* 646.759.0052
* <http://www.magnetic.com/>* On Tue, Oct 6, 2015 at 11:17 AM, Steve Loughran <ste...@hortonworks.com> wrote: > > On 6 Oct 2015, at 01:23, Andrew Or <and...@databricks.com> wrote: > > Both the history server and the shuffle service are backward compatible, > but not forward compatible. This means as long as you have the latest > version of history server / shuffle service running in your cluster then > you're fine (you don't need multiple of them). > > > FWIW I've just created a JIRA on tracking/reporting version mismatch on > history server playback better: > https://issues.apache.org/jira/browse/SPARK-10950 > > Even though the UI can't be expected to playback later histories, it could > be possible to report the issue in a way that users can act on "run a later > version", rather than raise support calls. > >
