Channel synchronisation is taking more than 20 seconds with 143 live channels

[niliyam]

Description

Hi,

We have 143 channels live in our production app using Twilio Programmable Chat.

Earlier channel synchronization time was around 2 seconds when we had <10 channels, but now with 143 channels, this synchronization time has increased to 22-24 seconds.

We have integrated the latest SDK version. What is the issue here? This increased synchronization time is causing major business problems.

Expected Behavior

Channel synchronization should take than 2-3 seconds even if number of channels increase multi-folds.

Actual Behavior

Channel synchronization is taking 23-24 seconds.

Reproduces how Often

100%

Logs

2020-12-28 23:47:28.733 30293-30293/com.pristyncare.hospitalchat.debug D/Hospital: AISS > TWILIO > app created 2020-12-28 23:47:31.461 30293-30293/com.pristyncare.hospitalchat.debug D/Hospital: AISS > TWILIO > createClient() 2020-12-28 23:47:32.152 30293-30293/com.pristyncare.hospitalchat.debug D/Hospital: AISS > TWILIO > setChannelListener() > true 2020-12-28 23:47:36.117 30293-30293/com.pristyncare.hospitalchat.debug D/Hospital: AISS > TWILIO > onSuccess() 2020-12-28 23:47:36.117 30293-30293/com.pristyncare.hospitalchat.debug D/Hospital: AISS > TWILIO > tokenCreated() 2020-12-28 23:47:36.123 30293-30293/com.pristyncare.hospitalchat.debug D/Hospital: AISS > TWILIO > tokenCreated() 2 2020-12-28 23:47:36.126 30293-30293/com.pristyncare.hospitalchat.debug D/Hospital: AISS > TWILIO > getChannels() 2020-12-28 23:47:36.331 30293-30293/com.pristyncare.hospitalchat.debug D/Hospital: AISS > TWILIO > setChannelDatatoDb 2020-12-28 23:47:36.333 30293-30293/com.pristyncare.hospitalchat.debug D/Hospital: AISS > TWILIO > getOfflineMessages() 2020-12-28 23:47:36.334 30293-30293/com.pristyncare.hospitalchat.debug D/Hospital: AISS > TWILIO > setChannelListener() > false 2020-12-28 23:47:36.336 30293-30293/com.pristyncare.hospitalchat.debug D/Hospital: AISS > TWILIO > synchronized channels 2020-12-28 23:47:36.340 30293-30293/com.pristyncare.hospitalchat.debug D/Hospital: AISS > TWILIO > CSYNC - IDENTIFIER 2020-12-28 23:47:59.097 30293-30293/com.pristyncare.hospitalchat.debug D/Hospital: AISS > TWILIO > CSYNC - ALL 2020-12-28 23:47:59.097 30293-30293/com.pristyncare.hospitalchat.debug D/Hospital: AISS > TWILIO > checkLocalMessageCount() 2020-12-28 23:47:59.099 30293-30293/com.pristyncare.hospitalchat.debug D/Hospital: AISS > TWILIO > getOfflineMessages()

Or attach it as a file.

Chat Android SDK

6.2.0

Android API

30

[rusmonster]

Hi! Thanks a lot for bringing this issue to our attention. In general, Programmable Chat Client synchronization time depends on the number of factors during the initial SDK startup, in particular:

• number of userChannels
• number of members in each user channel
• network quality

When user has only several userChannels and good network expected synchronization time is few seconds. If the user is a member of numerous channels, the synchronization time increases. It’s a little bit unclear how many same users are in these 147 channels, but the startup time shouldn’t be that long as according to our tests 1000 channels x 1 member each with a good network takes about ~10 sec to synchronize.

At the moment, we are working on several solutions to improve the startup time, but significant improvements are not expected before the second half of 2021.

[berkus]

We will revisit this after we implement the optimizations as proposed in second half of 2021. Closing for now.