investigate suspended js-waku in suspended mode

[weboko]

This is a support request

Problem

Investigate how js-waku behaves in following scenarios:

• tab with js-waku get's suspended or laptop goes to sleep;
• tab with lightPush or filter is kept for some time (10+ minutes);

Once particular problems are found - let's create them as bugs and fix accordingly.

Notes

Part of: #2154

[adklempner]

Here's another scenario I tested which seems relevant:

1. Open light-js in two separate browsers
2. Subscribe to same topic on both
3. Send a message from browser A and verify it appears in browser B
4. In browser B set Network throttling to Offline
5. Send another message from browser A
6. Set network throttling off in browser B
7. Send another message from browser A

When I tried this, browser B does not receive messages from steps 5 and 7.

[adklempner]

Running light push and filter for 10+ minutes:

1. Open light-js in two separate browsers (modified to add a button that sends a message every 5 seconds)
2. Subscribe to same topic on both
3. In browser A, send a message using light push every 10 seconds

Results:

• Browser A sent messages 1-30 correctly to 6 peers each
• Messages 31 and 32 reported remote peer fault for some peers
• Messages 33-114 sent to a single peer each (only managed to reconnect to a single peer after dropping connections)
• Browser A stopped seeing messages in its own filter subscription after message 31
• Browser B saw messages 1-30, missed 31, saw 32-63 and then missed messages after

Around message 115 is when my laptop suspended
After waking up:

• Browser A reconnected to 4 and then 6 peers and continued sending messages
• Browser B received messages 115-179 but stopped after
• Browser A received messages 115-146 but stopped after (although it continued to push them successfully)

[danisharora099]

Thanks for the investigations @adklempner -- do you see some tangible issue creations coming out of this?
I'm happy to continue this effort further

[weboko]

Closing as investigation was done and we don't have explicit improvement to do for now.