table plugin not delivered
I was hoping to use the workaround in collectd/collectd/issues/1499, which uses the table plugin to retrieve values from /proc/meminfo. But stackdriver-agent doesn't deliver the table plugin. There's no indication I can find whether that's deliberate, or just something that was accidentally left out of the plugin whitelist in the build rules.
This was intentional — we whitelist plugins on a need basis. Since the table plugin is tiny and doesn't look like it has any dependencies, we could include it. However, we're in the process of releasing a new major version of the agent package (6.0.0, based off collectd 5.8.1), so most likely the table plugin would be included there, and not in the 5.5.2-based versions. I'll let @qingling128 make this call.
That makes sense to me. We are currently working on 6.0.0 (no exact ETA yet). It makes sense to include this plugin there.