### Nous faisons des erreurs { #we-make-mistakes }

Nous, humains, faisons des **erreurs**, tout le temps. Les logiciels ont presque *toujours* des **bugs** cachés à différents endroits. 🐛

                        success = false;
                        continue;
                    }
                }

                // 3. Delete old index and recreate with the same name (Bhv layer caches concrete index names)
                deleteIndex(indexName);
                if (!createIndex(configIndex, indexName)) {

```Dockerfile
RUN pip install --no-cache-dir --upgrade -r /code/requirements.txt
```

Die Datei mit den Paketanforderungen wird sich **nicht häufig ändern**. Wenn Docker also nur diese Datei kopiert, kann es für diesen Schritt **den Cache verwenden**.

- kubeadm: added "disable success" and "disable denial" as parameters of the "cache" plugin in the Corefile managed by kubeadm. This is to prevent conflicting responses during CoreDNS cache updates. ([#128359](https://github.com/kubernetes/kubernetes/pull/128359), [@matteriben](https://github.com/matteriben)) [SIG Cluster Lifecycle]

- To reduce chances of throttling, VM cache is set to nil when Azure node provisioning state is deleting ([#87635](https://github.com/kubernetes/kubernetes/pull/87635), [@feiskyer](https://github.com/feiskyer)) [SIG Cloud Provider]

* The following deprecated flags were removed from `kube-controller-manager`:

  * `replication-controller-lookup-cache-size`
  * `replicaset-lookup-cache-size`
  * `daemonset-lookup-cache-size`

  Don't use these flags. Using deprecated flags causes the server to print a warning. Using a removed flag causes the server to abort the startup.

* The following deprecated flags were removed from `kubelet`:

  long size();

  /**
   * Returns a current snapshot of this cache's cumulative statistics, or a set of default values if
   * the cache is not recording statistics. All statistics begin at zero and never decrease over the
   * lifetime of the cache.
   *
   * <p><b>Warning:</b> this cache may not be recording statistical data. For example, a cache

  long size();

  /**
   * Returns a current snapshot of this cache's cumulative statistics, or a set of default values if
   * the cache is not recording statistics. All statistics begin at zero and never decrease over the
   * lifetime of the cache.
   *
   * <p><b>Warning:</b> this cache may not be recording statistical data. For example, a cache

			return false
		}
		if string(prevRData) != string(rData) {
			return false
		}
	}
	return true
}

// cache of IAM info fetched in last SiteReplicationMetaInfo call
type srIAMCache struct {
	sync.RWMutex
	lastUpdate time.Time
	srIAMInfo  madmin.SRInfo // caches IAM info
}

func (c *SiteReplicationSys) getSRCachedIAMInfo() (info madmin.SRInfo, ok bool) {
	c.iamMetaCache.RLock()

  The incorrect loop logic might lead to a plugin being loaded multiple times, consequently preventing any Pod from being scheduled, which is unexpected. ([#122366](https://github.com/kubernetes/kubernetes/pull/122366), [@caohe](https://github.com/caohe)) [SIG Scheduling]
- Fixed migration of in-tree vSphere volumes to the CSI driver. ([#122341](https://github.com/kubernetes/kubernetes/pull/122341), [@jsafrane](https://github.com/jsafrane)) [SIG Storage]