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modify terminated-pod-gc-threshold explanation (#15272) #17183

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Nov 5, 2019
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modify terminated-pod-gc-threshold explanation (#15272) #17183

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59142eb
modify terminated-pod-gc-threshold explanation (#15272)
hase1128 Oct 25, 2019
959d99c
modify terminated-pod-gc-threshold explanation (#15272)
hase1128 Oct 28, 2019
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9 changes: 5 additions & 4 deletions content/en/docs/concepts/workloads/pods/pod-lifecycle.md
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Expand Up @@ -276,10 +276,11 @@ once bound to a node, a Pod will never be rebound to another node.

## Pod lifetime

In general, Pods do not disappear until someone destroys them. This might be a
human or a controller. The only exception to
this rule is that Pods with a `phase` of Succeeded or Failed for more than some
duration (determined by `terminated-pod-gc-threshold` in the master) will expire and be automatically destroyed.
In general, Pods remain until a human or controller process explicitly removes them.
The control plane cleans up terminated Pods (with a phase of `Succeeded` or
`Failed`), when the number of Pods exceeds the configured threshold
(determined by `terminated-pod-gc-threshold` in the kube-controller-manager).
This avoids a resource leak as Pods are created and terminated over time.

Three types of controllers are available:

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