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Merge pull request #26256 from Cweiping/feature/fix_pid_pressure

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fix default value of nodefs.inodesFree on linux
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Kubernetes Prow Robot
2021-02-04 10:42:25 -08:00
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parent f1c4f60bc1 6f777c9e64
commit 8a8f87f708
1 changed files with 3 additions and 1 deletions
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content/en/docs/tasks/administer-cluster/out-of-resource.md
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@@ -117,9 +117,10 @@ The `kubelet` has the following default hard eviction threshold:
* `memory.available<100Mi` * `memory.available<100Mi`
* `nodefs.available<10%` * `nodefs.available<10%`
* `nodefs.inodesFree<5%`
* `imagefs.available<15%` * `imagefs.available<15%`
On a Linux node, the default value also includes `nodefs.inodesFree<5%`.
### Eviction Monitoring Interval ### Eviction Monitoring Interval
The `kubelet` evaluates eviction thresholds per its configured housekeeping interval. The `kubelet` evaluates eviction thresholds per its configured housekeeping interval.
@@ -140,6 +141,7 @@ The following node conditions are defined that correspond to the specified evict
|-------------------|---------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------| |-------------------|---------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------|
| `MemoryPressure` | `memory.available` | Available memory on the node has satisfied an eviction threshold | | `MemoryPressure` | `memory.available` | Available memory on the node has satisfied an eviction threshold |
| `DiskPressure` | `nodefs.available`, `nodefs.inodesFree`, `imagefs.available`, or `imagefs.inodesFree` | Available disk space and inodes on either the node's root filesystem or image filesystem has satisfied an eviction threshold | | `DiskPressure` | `nodefs.available`, `nodefs.inodesFree`, `imagefs.available`, or `imagefs.inodesFree` | Available disk space and inodes on either the node's root filesystem or image filesystem has satisfied an eviction threshold |
| `PIDPressure` | `pid.available` | Available processes identifiers on the (Linux) node has fallen below an eviction threshold | |
The `kubelet` continues to report node status updates at the frequency specified by The `kubelet` continues to report node status updates at the frequency specified by
`--node-status-update-frequency` which defaults to `10s`. `--node-status-update-frequency` which defaults to `10s`.