nsqd: retry health check

[sebest]

Hello,

The disk got full and /ping was reporting it even after the disk usage went down as we resume consuming the channel.

We add to restart the process, otherwise /ping kept reporting NOK

it is with version 0.3.2, so maybe it is fixed now?

thanx

[mreiferson]

@sebest is it possible that you hadn't published any additional messages to that channel during that time?

The health is related to the ability to successfully write to disk. For better or worse, if you never again write to disk it won't currently clear that unhealthy state.

We could force an occasional retry?

[sebest]

Got it, as i only write when the status is ok, and if the status is only updated when i write in it, i ended up in a dead lock.
So i guess the only way would be nsq to update its status on a regular basis.

[mreiferson]

👍