Add a batch option to munin-asyncd

[clem-compilatio]

Hello,

Is your feature request related to a problem? Please describe.

• munin-asyncd pools one by one.
  • => too slow if full pool takes more than 5 minutes.
• munin-asyncd --fork pools all at once.
  • => very fast but too much load on munin-node host.

Describe the solution you'd like

• munin-asyncd --batch <count>
  • for example, munin-asyncd --batch 50 would pool plugins 50 by 50, until all plugins have been pooled.

Describe alternatives you've considered

• Some auto-intra-regulation on the plugins themselfs ? With some counter locking ?
• Multiple munin-nodes and munin-asyncd --fork by host, to "shard" the plugins pooling, with the munin-asyncds not running at the same time ? With some merge mecanism for munin-async ?

Additional context

• A simple batch system would be enough :
  • ie, wait untill all plugins from current batch are done.
  • then, start next batch.
• No need for an advanced batch system where a new plugin is pooled as soon as one is done.
  • of course, it would be awesome if possible.

Thanks

[steveschnepp]

Nice idea. That said, the CLI should evolve with
munin-asyncd --fork=50 that doesn't fork more than 50 plugins at the time.

Nothing means unlimited.

[clem-compilatio]

munin-asyncd --fork=50 -> fine with me 👍