Aliaksei Levin

This is expected server-side behavior which can't be affected by TDLib. Channel updates are not supposed to be propagated in "near real-time" with the exception of updates received by bots...

The error means that you are trying to link a debug DLL with a release DLL, which shouldn't happen if build instructions provided at https://tdlib.github.io/td/build.html?language=Java are used. It may help...

You don't need to use instructions from https://github.com/tdlib/td/tree/master/example/java if you use https://tdlib.github.io/td/build.html?language=Java.

You are running `cmake` from `/usr/src/app/td` as specified by thr error.

You should use https://tdlib.github.io/telegram-bot-api/build.html to build the Bot API server.

See https://core.telegram.org/tdlib/getting-started#user-authorization. `checkDatabaseEncryptionKey` doesn't exist anymore and `setTdlibParameters` didn't change conceptually.

The option allows to set "HTTP proxy server for outgoing webhook requests in the format http://host:port". There is no option to set a proxy for interaction with Telegram. Instead, it...

The number of file descriptors allowed by your operating system per process has been exceeded. You can use `ulimit` or `--max-connections` option if the process is launched with enough priviledges...

Server size doesn't matter at all. Those are settings of the operating system. You need corresponding priviledges to use `--max-connections`. The simplest way is to run the Bot API server...

The number of allowed file descriptors doesn't affect RAM usage. Likely. you have some highloaded bots with big amount of updates per second.