Debug disconnection

[nassiharel]

When the algorithm disconnected from worker, the worker should be ready to process a new job

[tamir321]

disconnection accords in two cases:

1. while debugging worker gets "uncaugthehtException: Watcher canceled:" from the algorithm

2. while debugging stop the pipeline

in both cases only killing the worker will enable you to restart debugging

[nassiharel]

@tamir321
The worker doesn't get "uncaugthehtException: Watcher canceled:" from the algorithm.
This is an ETCD Exception.

[stale]

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