DEFAULT_IMQ_DRAIN_TIMEOUT variable

Default drain budget in milliseconds, used when neither IMQServiceOptions.drainTimeout nor the IMQ_DRAIN_TIMEOUT environment variable is set.

Signature:

DEFAULT_IMQ_DRAIN_TIMEOUT = 4000

Remarks

Chosen to sit below the imq stop CLI's escalation window: the CLI signals the process group, then polls liveness 20 times at 250 ms (~5 s) before sending SIGKILL. A budget above that would let the local CLI kill a draining service harder than a cluster would, which is backwards. 4000 ms leaves roughly a second of headroom for stop(), destroy() and process teardown inside that window.

Kubernetes is not the binding constraint here — its terminationGracePeriodSeconds defaults to 30 s — so raise this (and the CLI is then the odd one out) only for deployments that never use imq stop.

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