[FLINK-13500] RestClusterClient requires S3 access when HA is configured

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Resolved
• Affects Version/s: 1.8.1
• Component/s: Runtime / Coordination, Runtime / REST
• Assignee: Unassigned
• Reporter: David Judd
• Created: 30/Jul/19 16:58
• Updated: 02/Oct/19 17:48
• Resolved: 05/Sep/19 08:17

Description

RestClusterClient initialization calls ClusterClient initialization, which calls
org.apache.flink.runtime.highavailability.HighAvailabilityServicesUtils.createHighAvailabilityServices
In turn, createHighAvailabilityServices calls BlobUtils.createBlobStoreFromConfig, which in our case tries to talk to S3.

It seems very surprising to me that (a) RestClusterClient needs any form of access other than to the REST API, and (b) that client initialization would attempt a write as a side effect. I do not see either of these surprising facts described in the documentation–are they intentional?

Issue Links

• is caused by: FLINK-13750 Separate HA services between client-/ and server-side
• is superceded by: FLINK-13750 Separate HA services between client-/ and server-side