Error when subscribing to topic - Cancelled on Client

[ed-marquez]

Description

Description

An application developer from the ecosystem reported the following error when subscribing to a topic:

Error subscribing to topic 0.0.5860199 during attempt 0. Waiting 250 ms before next attempt: 1 CANCELLED: Cancelled on client
Error: Cancelled on client

In addition, HSuite has provided some feedback regarding that error in connection to frequent environment updates impacting their testing and release plans:

Steps to reproduce

To be provided by user

Additional context

No response

Hedera network

testnet

Version

TBC

Operating system

None

[tomachianura]

Hello guys, some more infos and context here:
we use a progressive caching mechanism, where we first check if there is any new message in the topic by fetching the latest consensus message, and only if we find new messages then we connect to the GRPC and fetch all the newest ones, then we close the connection.
from our side we're always keeping the connection as short as possible, and constantly cleaning up resources
we're running with "@hashgraph/sdk": "^2.37.0", latest one

  "engines": {
    "node": "20.x"
  }

if this might help

[tomachianura]

i've also noticed you guys are using some dependencies which are affected by critital security issues
like this one on crypto-js

you're also using "@grpc/grpc-js": "1.8.2" which has been reported has very buggy version.

feels like @hashgraph/sdk needs some urgent maintenance guys

[drgorb]

@tomachianura I just checked the crypto-js issue and it appears to be limited to the use of key derivation without parameters. Every use of PBKDF2 in the SDK is done with SHA-256, SHA-384 or SHA-512 with 260K iterations.

[svetoslav-nikol0v]

Hey tomachianura and ed-marquez,
Since the issue was raised we updated the crypto-js package to the latest stable version 4.2.0. The SDK has a new stable version (2.41.0). Can you please check if the problem still exists? If yes, can you provide us steps to reproduce it, please?