Amazon MySql db connection issue
plankes-projects opened this issue · comments
I am connecting to an amazon DB from windows php 7.2.4 with following code:
https://gist.github.com/plankes-projects/d941f49bf74353f0b29700261192c639
I get DNS timeout exception when I am running it on my windows developer machine.
https://gist.github.com/plankes-projects/c3cfd2a6aead806adc7a9efaf545ba48
Everthing works fine if I am using this config with eloquent or if I am connecting to a local DB:
https://gist.github.com/plankes-projects/afbe1d66eb08262a0f1484cf9fbaf402
Following amphp versions are installed with composer:
amphp/amp dev-master 9b2fb76 A non-blocking concurrency framework for PHP applications.
amphp/byte-stream v1.3.1 A stream abstraction to make working with non-blocking I/O...
amphp/cache v1.2.0 A promise-aware caching API for Amp.
amphp/dns v0.9.12 Async DNS resolution for Amp.
amphp/file v0.3.1 Allows non-blocking access to the filesystem for Amp.
amphp/mysql dev-master aec58f4 Asynchronous parallel Mysql client built on the Amp concur...
amphp/parallel v0.2.5 Parallel processing component for Amp.
amphp/parser v1.0.0 A generator parser to make streaming parsers simple.
amphp/process v0.3.3 Asynchronous process manager.
amphp/socket v0.10.8 Async socket connection / server tools for Amp.
amphp/sync v1.0.1 Mutex, Semaphore, and other synchronization tools for Amp.
amphp/uri v0.1.3 Uri Parser and Resolver.
amphp/windows-registry v0.3.1 Windows Registry Reader.
Moved from amphp/mysql#67
Could you please check which DNS server the requests are sent to and whether that's the right one?
They were send to the local router, same as the other one.
But this issue is not relevant anymore If no one else has it.
I decided to go for real threading in a docker container instead of Amphp.
Good luck to you guys!
It would still be good to know the root cause, but if you no longer care, you probably don't want to invest some time to help us?
I am sorry, I wasted a lot of time during the last weeks because amphp/mysql has also a bug which results in losing data without throwing an exception, creating too many connections, and constantly losing data if query count > pool size.
I did not find the cause for this, sorry =( (https://github.com/friends-of-reactphp/mysql has similar problems, so maybe it is a php issue)
But thats the reason why I moved to the pthreads approach which works fine at the moment.
Could you share the script you used for testing?
Yes, I can do that. I extracted the relevant parts, but you will have to adapt it a little bit to make it run.
https://gist.github.com/plankes-projects/e71a05d86defa03c9ac0eca0842e5fa7
I think most interesting will be funciton performAsync.
One more thing, I did not recognize any patterns. Sometimes stuff fails sometimes not. And the occurrence of issues 'feels' different on ubuntu OS.