https://www.php.net/manual/en/mongodb-driver-monitoring-commandstartedevent.getserver.php

...the instrumentation also uses Server::getInfo() for some custom mongo trace attributes, which doesn't have a clear replacement.

@brettmc Yes, I originally wanted to file a PR, but I found that I couldn't handle getInfo, so I raised an issue.

Yes, I originally wanted to file a PR, but I found that I couldn't handle getInfo, so I raised an issue.

Could you create an issue in the upstream mongodb repo to find out whether getInfo will exist in the next version? It may have been overlooked, but if it's going away then we'll just need to drop support for those extra trace attributes.

If you do create an issue, can you link to it from this issue?

php/doc-en#4367
@brettmc

@brettmc: Copying in my response from php/doc-en#4367 (comment)

The related JIRA ticket is PHPC-2442. The getServer() method was only deprecated in 1.20 alongside the introduction of the getHost() and getPort() methods. PHPC-1741 tracks the removal of getServer(), which was only applied to the 2.0 branch.

There is no direct replacement for accessing a MongoDB\Driver\Server object from an event object; however, you can obtain a Server object by filtering the results of MongoDB\Driver\Manager::getServers() by the corresponding host and port.

If the Server object was only used for tracing, I would suggest just using the host and port going forward. The getInfo() method returned the entire hello command response from the driver's last monitoring call, which is likely way more data than most users would need or make use of.

I'm not familiar with how this library interacts with the driver, but if you need details about server connections and cluster topology that would be better collected via an SDAM subscriber. The hello response is accessible from both ServerHeartbeatSucceededEvent and ServerChangedEvent (via ServerDescription::getHelloResponse()). Since multiple heartbeats could occur over the course of a script, ServerChangedEvent is likely the more sensible event to log if you wish to minimize noise.