[OAK-4639] Enable --missingblobstore by default for the sidegrade

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.4.12, 1.5.10, 1.6.0
• Component/s: upgrade
• Assignee: Tomek Rękawek
• Reporter: Tomek Rękawek
• Created: 03/Aug/16 15:06
• Updated: 16/Dec/16 11:16
• Resolved: 08/Sep/16 11:17

Description

The new --missingblobstore option should be enabled by default for all supported cases. It should be only disabled if user specifies --copy-binaries (meaning they're not interested in copying blobs by references) and/or the blob store manually (eg. using --src-datastore).

Desired outcome should be as follows:

For sidegrade:

src blobstore defined	src blobs embedded	dst blobstore defined	--copy-binaries	outcome src blobstore	outcome action
-	-	-	-	missing	copy references1
-	-	-		missing	not supported
-	-		*	missing	not supported
-		-	*	embedded	copy to embedded
-			*	embedded	copy to defined blobstore
	*	-	-	as in src	copy references
	*	-		as in src	copy to embedded
	*		*	as in src	copy to defined blobstore

¹ - not supported for SegmentMK -> MongoMK migration

For upgrade:

dst blobstore defined	--copy-binaries	outcome src blobstore	outcome action
-	-	defined by JCR2	copy references
-		defined by JCR2	copy to embedded
	*	defined by JCR2	copy to defined blobstore

Issue Links

• Is contained by: OAK-5290 Backport the performance improvements for oak-upgrade from trunk
• is related to: OAK-5100 Provide source store external references flag via command line if available