1. Can or has any one done a rolling upgrade from 1.4 to 1.5 ? I am not sure we can. It seems that JM cannot recover jobs with this exception
Caused by: java.io.InvalidClassException: org.apache.flink.runtime.jobgraph.tasks.CheckpointCoordinatorConfiguration; local class incompatible: stream classdesc serialVersionUID = -647384516034982626, local class serialVersionUID = 2 2. Does SP on 1.4, resume on 1.5 ( pretty basic but no harm asking ) ? 3. https://ci.apache.org/projects/flink/flink-docs-release-1.5/release-notes/flink-1.5.html#update-configuration-for-reworked-job-deployment The taskmanager.numberOfTaskSlots: What would be the desired setting in a stand alone ( non mesos/yarn ) cluster ? 4. I suspend all jobs and establish 1.5 on the JM ( the TMs are still running with 1.4 ) . JM refuse to start with Jun 23 07:34:23 flink-ad21ac07.bf2.tumblr.net docker[3395]: 2018-06-23 11:34:23 ERROR JobManager:116 - Failed to recover job 454cd84a519f3b50e88bcb378d8a1330. Jun 23 07:34:23 flink-ad21ac07.bf2.tumblr.net docker[3395]: java.lang.InstantiationError: org.apache.flink.runtime.blob.BlobKey Jun 23 07:34:23 flink-ad21ac07.bf2.tumblr.net docker[3395]: at sun.reflect.GeneratedSerializationConstructorAccessor51.newInstance(Unknown Source) Jun 23 07:34:23 flink-ad21ac07.bf2.tumblr.net docker[3395]: at java.lang.reflect.Constructor.newInstance(Constructor.java:423) Jun 23 07:34:23 flink-ad21ac07.bf2.tumblr.net docker[3395]: at java.io.ObjectStreamClass.newInstance(ObjectStreamClass.java:1079) Jun ..... Any feedback would be highly appreciated...
