Undefined index in unmapConnection about mysql HOT 13 CLOSED

How can I reproduce this bug? There shouldn't be a check, it's a bug somewhere else if the index isn't defined there.

from mysql.

I don't really know, could be due to notebook energy saving state?

from mysql.

That could be the reason why a connection breaks, but not why this emits a notice...

from mysql.

When does this method get called?

from mysql.

When a connection fails. (in config->restore callback and in the when() when it fails upon initialization).

from mysql.

I got it (I think).

From http://php.net/stream_socket_client

UDP sockets will sometimes appear to have opened without an error, even if
the remote host is unreachable. The error will only become apparent when you
read or write data to/from the socket. The reason for this is because UDP is
a "connectionless" protocol, which means that the operating system does not
try to establish a link for the socket until it actually needs to send or
receive data.

So connecting to any reachable IP address might open the connection failing silently.

To reproduce, just connect to 127.0.0.1:any-closed-port.

from mysql.

Question, this should apply to amphp/mysql or rdlowrey/nbsock?

cc /@rdlowrey

edit: Somehow this affects artax too.

from mysql.

Also related to #5 perhaps?

from mysql.

@douggr It's all TCP, I think only DNS uses UDP.

from mysql.

Good call.

Despite a valid stream is created, empty even, the connection may or may not
be valid; you don't know until you read from it.

Since onRead() is called only within onInit() maybe this
douggr/mysql@2cf671a fix the whole thing?

from mysql.

@douggr onRead() is the general callback for the read watcher, just the first read is in onInit(), which then invokes onRead(). … So, no.

from mysql.

It's called every time the socket is readable, see https://github.com/douggr/mysql/blob/master/lib/Connection.php#L168

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This bug was fixed in f50e750

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