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Type: Task
Resolution: Fixed
Priority: Major - P3
Fix Version/s: 7.2.0-rc0, 7.1.0-rc1
Affects Version/s: None
Component/s: None
Labels:
- shard-merge-milestone-3

Backwards Compatibility:
Fully Compatible
Backport Requested:

v7.1
Sprint:
Server Serverless 2023-03-20, Server Serverless 2023-04-03, Server Serverless 2023-04-17, Server Serverless 2023-05-01, Server Serverless 2023-05-15, Server Serverless 2023-05-29, Server Serverless 2023-07-24, Server Serverless 2023-08-07, Server Serverless 2023-08-21, Server Serverless 2023-09-04

Shard Merge is not robust to donor/recipient failovers, restarts and rollbacks. So, the following items should be taken care by this ticket
1) ShardMergeRecipientService is interrupted correctly during rollback/shutdown/abort migration cases.
2) Any data (includes temp WT directory, imported collection, idents to mdb catalog and storage) /resources (eg. backup cursor) that are copied/allocated as part of failed migration attempt is deleted/freed correctly upon node rollback/restart and abort migration cases.
3) No data corruption due to restarts/rollbacks after migration is committed.

is depended on by

SERVER-72215 Delete the donor WT files that are unknown to both _mdb_catalog and storage (wiredtiger.wt).

Closed

SERVER-74614 Complete TODO listed in SERVER-63204

Closed

is duplicated by

SERVER-61677 Abort migration on rollback etc.

Closed

SERVER-63752 Make sure the shard merge never leaves an orphaned open backup cursor on donor.

Closed

SERVER-72202 Merge shouldn’t re-establish network connection on network errors while reading files from the backup cursor.

Closed

SERVER-72203 Merge shouldn’t re-establish network connection on network errors while reading file data from backup file aggregation cursor.

Closed

SERVER-72205 Persist the backup cursorID info in the R state document.

Closed

SERVER-72206 Ensure the backup cursor is closed after the file-copy based cloning phase.

Closed

SERVER-72209 TenantFileImportService should do no work on R nodes rollback & restarts.

Closed

SERVER-73900 Ensure no collection gets imported after file importer service is interrupted.

Closed

(5 is duplicated by)

Assignee:: Suganthi Mani

Reporter:: Suganthi Mani

Participants:: Githook User, Suganthi Mani

Votes:: 0 Vote for this issue

Watchers:: 3 Start watching this issue

Created:: Mar 03 2023 01:11:36 PM UTC

Updated:: Oct 29 2023 09:25:22 PM UTC

Resolved:: Aug 29 2023 05:40:09 PM UTC

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