gristlabs_grist-core/app/server
Dmitry S 526a5df157 (core) Manage memory used for websocket responses to reduce the risk of server crashes.
Summary:
- Implements MemoryPool for waiting on memory reservations.
- Uses MemoryPool to control memory used for stringifying JSON responses in Client.ts
- Limits total size of _missedMessages that may be queued for a particular client.
- Upgrades ws library, which may reduce memory usage, and allows pausing the websocket for testing.
  - The upgrade changed subtle behavior corners, requiring various fixes to code and tests.

- dos.ts:
  - Includes Paul's fixes and updates to the dos.ts script for manual stress-testing.
  - Logging tweaks, to avoid excessive dumps on uncaughtError, and include timestamps.

Test Plan:
- Includes a test that measures heap size, and fails without memory management.
- Includes a unittest for MemoryPool
- Some cleanup and additions to TestServer helper; in particular adds makeUserApi() helper used in multiple tests.
- Some fixes related to ws upgrade.

Reviewers: paulfitz

Reviewed By: paulfitz

Differential Revision: https://phab.getgrist.com/D3974
2023-08-07 11:28:31 -04:00
..
declarations (core) disentangle some server tests, release to core, add GRIST_PROXY_AUTH_HEADER test 2022-03-24 15:11:32 -04:00
lib (core) Manage memory used for websocket responses to reduce the risk of server crashes. 2023-08-07 11:28:31 -04:00
utils (core) sanitizing redis errors 2023-06-06 10:51:17 +02:00
companion.ts (core) Add Support Grist page and nudge 2023-07-04 17:36:59 -04:00
declarations.d.ts (core) Faster builds all around. 2022-07-04 10:42:40 -04:00
devServerMain.ts REQUEST now supports POST (#588) 2023-07-30 15:13:43 -04:00
generateCheckpoint.ts (core) get all tests working under python3/gvisor 2021-10-18 17:44:15 -04:00
generateInitialDocSql.ts (core) Add optional telemetry to grist-core 2023-06-07 12:00:51 -04:00
localization.ts only offer languages that have been marked as substantially complete (#466) 2023-03-28 10:59:17 -04:00
mergedServerMain.ts (core) resolved some divergence in mergedServerMain 2023-07-10 07:50:52 -04:00
tsconfig.json (core) Simple localization support and currency selector. 2021-08-26 13:36:49 -07:00