[SLING-10528] Reject large packages

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: Content Distribution Journal Core 0.1.18
• Component/s: Content Distribution
• Assignee: Timothee Maret
• Reporter: Timothee Maret
• Created: 22/Jun/21 13:27
• Updated: 16/Jul/21 07:39
• Resolved: 23/Jun/21 10:43

Description

Journal distribution serialise content packages in binary less mode only. When doing "deep" distribution, the package can still become so large that the importing side can't ingest it. When this happens, Apache Oak does a session save that never seem to return and can easily take 8 hours to terminate.

I suggest to detect those large packages, based on the package size and simply reject packages above a configurable limit size. The limit should take in consideration the mean import throughput for a single Oak session on cloud segment tar and should keep the save operation below, say 15 minutes.

With this approach, we can ensure that Oak always return when importing a package and we can fail fast for larger packages. Journal distribution will also handle the errors nicely and allow to remove the blocking item from the usual set of tools.

Issue Links

• causes: SLING-10617 Allow to configure the package size to reject
• supercedes: SLING-10112 Distribution Queue can not be reliably cleared due to race condition processing delete messages
• links to: GitHub Pull Request #75