Summary:
Adds a new Support Grist page (accessible only in grist-core), containing
options to opt in to telemetry and sponsor Grist Labs on GitHub.
A nudge is also shown in the doc menu, which can be collapsed or permanently
dismissed.
Test Plan: Browser and server tests.
Reviewers: paulfitz, dsagal
Reviewed By: paulfitz
Subscribers: jarek, dsagal
Differential Revision: https://phab.getgrist.com/D3926
Summary:
Previously we failed to log signup info for users who signed up via
Google. This fixes that issue by recording it on first post-signup
visit. It also includes signup as a new telemetry event, recorded at the
same point.
Test Plan: Tested locally to see that a signup produces an appropriate log message and telemetry event.
Reviewers: georgegevoian
Reviewed By: georgegevoian
Differential Revision: https://phab.getgrist.com/D3921
Summary: Also fixes a few small bugs with telemetry collection.
Test Plan: Server and manual tests.
Reviewers: paulfitz
Reviewed By: paulfitz
Differential Revision: https://phab.getgrist.com/D3915
Summary:
Adds support for optional telemetry to grist-core.
A new environment variable, GRIST_TELEMETRY_LEVEL, controls the level of telemetry collected.
Test Plan: Server and unit tests.
Reviewers: paulfitz
Reviewed By: paulfitz
Subscribers: dsagal, anaisconce
Differential Revision: https://phab.getgrist.com/D3880
Summary:
- Excel exports were awfully memory-inefficient, causing occasional docWorker
crashes. The fix is to use the "streaming writer" option of ExcelJS
https://github.com/exceljs/exceljs#streaming-xlsx-writercontents. (Empirically
on one example, max memory went down from 3G to 100M)
- It's also CPU intensive and synchronous, and can block node for tens of
seconds. The fix is to use a worker-thread. This diff uses "piscina" library
for a pool of threads.
- Additionally, adds ProcessMonitor that logs memory and cpu usage,
particularly when those change significantly.
- Also introduces request cancellation, so that a long download cancelled by
the user will cancel the work being done in the worker thread.
Test Plan:
Updated previous export tests; memory and CPU performance tested
manually by watching output of ProcessMonitor.
Difference visible in these log excerpts:
Before (total time to serve request 22 sec):
```
Telemetry processMonitor heapUsedMB=2187, heapTotalMB=2234, cpuAverage=1.13, intervalMs=17911
Telemetry processMonitor heapUsedMB=2188, heapTotalMB=2234, cpuAverage=0.66, intervalMs=5005
Telemetry processMonitor heapUsedMB=2188, heapTotalMB=2234, cpuAverage=0, intervalMs=5005
Telemetry processMonitor heapUsedMB=71, heapTotalMB=75, cpuAverage=0.13, intervalMs=5002
```
After (total time to server request 18 sec):
```
Telemetry processMonitor heapUsedMB=109, heapTotalMB=144, cpuAverage=0.5, intervalMs=5001
Telemetry processMonitor heapUsedMB=109, heapTotalMB=144, cpuAverage=1.39, intervalMs=5002
Telemetry processMonitor heapUsedMB=94, heapTotalMB=131, cpuAverage=1.13, intervalMs=5000
Telemetry processMonitor heapUsedMB=94, heapTotalMB=131, cpuAverage=1.35, intervalMs=5001
```
Note in "Before" that heapTotalMB goes up to 2GB in the first case, and "intervalMs" of 17 seconds indicates that node was unresponsive for that long. In the second case, heapTotalMB stays low, and the main thread remains responsive the whole time.
Reviewers: jarek
Reviewed By: jarek
Differential Revision: https://phab.getgrist.com/D3906
