[HBASE-20708] Remove the usage of RecoverMetaProcedure in master startup

• Type: Bug
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Fix Version/s: 3.0.0-alpha-1, 2.1.0
• Component/s: proc-v2, Region Assignment
• Hadoop Flags: Reviewed

Release Note

Introduce an InitMetaProcedure to initialize meta table for a new HBase deploy. Marked RecoverMetaProcedure deprecated and remove the usage of it in the current code base. We still need to keep it in place for compatibility. The code in RecoverMetaProcedure has been moved to ServerCrashProcedure, and SCP will always be enabled and we will rely on it to bring meta region online.

For more on the issue addressed by this commit, see the design doc for overview and plan: https://docs.google.com/document/d/1_872oHzrhJq4ck7f6zmp1J--zMhsIFvXSZyX1Mxg5MA/edit#heading=h.xy1z4alsq7uy

• Assignee: Duo Zhang
• Reporter: Duo Zhang
• Created: 09/Jun/18 12:35
• Updated: 23/Jun/22 19:27
• Resolved: 19/Jun/18 07:14

Description

In HBASE-20700, we make RecoverMetaProcedure use a special lock which is only used by RMP to avoid dead lock with MoveRegionProcedure. But we will always schedule a RMP when master starting up, so we still need to make sure that there is no race between this RMP and other RMPs and SCPs scheduled before the master restarts.

Please see #[accompanying design document where we call out the problem being addressed by this issue in more detail and in which we describe our new approach to Master startup.

Issue Links

• blocks: HBASE-20747 Cut branch-2.1
• breaks: HBASE-20775 TestMultiParallel is flakey
• is related to: HBASE-20700 Move meta region when server crash can cause the procedure to be stuck
• is related to: HBASE-20976 SCP can be scheduled multiple times for the same RS
• is related to: HBASE-19287 master hangs forever if RecoverMeta send assign meta region request to target server fail
• is related to: HBASE-19998 Flakey TestVisibilityLabelsWithDefaultVisLabelService
• is related to: HBASE-20742 Always create WAL directory for region server
• is related to: HBASE-20739 Add priority for SCP
• relates to: HBASE-20987 Evalate backport of HBASE-20708 Remove the usage of RecoverMetaProcedure in master startup
• links to: Design Doc
• links to: Review Board

Sub-Tasks

• Make RegionServerTracker only depend on children changed event: Resolved
• Backport to branch-2.0 HBASE-20708 "Remove the usage of RecoverMetaProcedure": Resolved