gristlabs_grist-core

Commit Graph

Author	SHA1	Message	Date
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	1 year ago

Author

SHA1

Message

Date

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

1 Commits (549240e6fd21f75b79bbc51113e0c14f5b087e2f)