Telegram bot experiencing pool timeout issues

I’m having trouble with my Telegram bot. It’s designed to send messages to groups, but it keeps getting a pool timeout error. Here’s what I’ve set up:

async def scheduled_job(context):
    print('Job starting...')
    updates = await context.bot.get_updates(limit=100, allowed_updates=['message', 'channel_post'])
    for update in updates:
        if update.effective_chat and update.effective_chat.type in ['group', 'supergroup']:
            await send_message(update.effective_chat.id, context)
    print('Job finished.')

# Set up the job
job_queue = app.job_queue
job_queue.run_daily(scheduled_job, time(hour=23, minute=0), days=(0, 1, 2, 3, 4, 5, 6))

The error happens at the get_updates line. I tried increasing timeouts, but it didn’t resolve the problem. The error indicates that all connections in the pool are busy. Any suggestions on whether I should modify the connection pool size or adjust some other settings?

From my experience, the pool timeout error you’re encountering is often related to excessive concurrent requests or slow processing. Have you considered implementing a backoff strategy? This involves gradually increasing the delay between requests if failures occur. It’s been quite effective in my projects.

Another approach worth exploring is to use long polling instead of frequent get_updates calls. You can set a longer timeout in get_updates, which reduces the number of API calls and might alleviate the pool exhaustion.

If these don’t work, you might want to look into your server’s network configuration. Sometimes, issues with DNS resolution or network latency can cause these timeouts. Checking your server’s network stack and possibly adjusting TCP keepalive settings could help resolve persistent connection issues.

hey man, sounds like u might be hitting telegram’s rate limits. have u tried using webhooks instead? they’re usually more reliable for handling lots of updates. also, maybe try reducing the limit on get_updates or add some delay between calls. that could help with the timeout issue

I’ve dealt with similar issues in my Telegram bots, and it can be frustrating. One thing that worked wonders for me was switching to webhooks instead of long polling. It’s a bit more setup initially, but it solved my timeout problems and improved my bot’s responsiveness.

If you’re not keen on webhooks, try implementing a more robust error handling and retry mechanism. I found that wrapping my get_updates call in a try-except block and implementing exponential backoff for retries helped a lot. Something like:

import time

max_retries = 5
for attempt in range(max_retries):
    try:
        updates = await context.bot.get_updates(limit=100, timeout=30)
        break
    except Exception as e:
        if attempt == max_retries - 1:
            raise
        time.sleep(2 ** attempt)

This way, if you hit a timeout, it’ll wait a bit and try again. It’s saved me countless headaches with my bots. Hope this helps!