gristlabs_grist-core/app/server
Paul Fitzpatrick c4d3d7d3bb (core) be careful when reassigning a doc to a worker it was on before
Summary:
Importing a .grist document is implemented in a somewhat clunky way, in a multi-worker setup.

 * First a random worker receives the upload, and updates Grist's various stores appropriately (database, redis, s3).
 * Then a random worker is assigned to serve the document.

If the worker serving the document fails, there is a chance the it will end up assigned to the worker that handled its upload. Currently the worker will misbehave in this case. This diff:

 * Ports a multi-worker test from test/home to run in test/s3, and adds a test simulating a bad scenario seen in the wild.
 * Fixes persistence of any existing document checksum in redis when a worker is assigned.
 * Adds a check when assigned a document to serve, and finding that document already cached locally. It isn't safe to rely only on the document checksum in redis, since that may have expired.
 * Explicitly claims the document on the uploading worker, so this situation becomes even less likely to arise.

Test Plan: added test

Reviewers: dsagal

Reviewed By: dsagal

Subscribers: dsagal

Differential Revision: https://phab.getgrist.com/D3305
2022-03-08 17:20:01 -05:00
..
lib (core) be careful when reassigning a doc to a worker it was on before 2022-03-08 17:20:01 -05:00
declarations.d.ts (core) Implement DiscourseConnect to enable easy sign-in to community forum 2021-10-01 11:24:22 -04:00
devServerMain.ts (core) Adding google drive plugin as a fallback for url plugin 2021-08-04 17:59:13 +02:00
generateCheckpoint.ts (core) get all tests working under python3/gvisor 2021-10-18 17:44:15 -04:00
generateInitialDocSql.ts (core) get all tests working under python3/gvisor 2021-10-18 17:44:15 -04:00
mergedServerMain.ts (core) Move user profile to new page and begin MFA work 2022-01-13 21:21:49 -08:00
tsconfig.json (core) Simple localization support and currency selector. 2021-08-26 13:36:49 -07:00