Merge pull request #39421 from mengjiao-liu/resync-maxunavailable-for-statefulset

[zh-cn] Resync 2022-05-27-maxunavailable-for-statefulset.md

Author: k8s-ci-robot

content/zh-cn/blog/_posts/2022-05-27-maxunavailable-for-statefulset.md

@@ -14,6 +14,8 @@ slug: maxunavailable-for-statefulset
 -->
 **作者：** Mayank Kumar (Salesforce)
 
+**译者：** Xiaoyang Zhang（Huawei）
+
 <!--
 Kubernetes [StatefulSets](/docs/concepts/workloads/controllers/statefulset/), since their introduction in 
 1.5 and becoming stable in 1.9, have been widely used to run stateful applications. They provide stable pod identity, persistent
@@ -33,7 +35,7 @@ Kubernetes [StatefulSet](/zh-cn/docs/concepts/workloads/controllers/statefulset/
 Here are some examples:
 
 -  I am using a StatefulSet to orchestrate a multi-instance, cache based application where the size of the cache is large. The cache 
-   starts cold and requires some siginificant amount of time before the container can start. There could be more initial startup tasks
+   starts cold and requires some significant amount of time before the container can start. There could be more initial startup tasks
    that are required. A RollingUpdate on this StatefulSet would take a lot of time before the application is fully updated. If the 
    StatefulSet supported updating more than one pod at a time, it would result in a much faster update.
 -->
@@ -82,7 +84,8 @@ spec:
         app: nginx
     spec:
       containers:
-      - image: k8s.gcr.io/nginx-slim:0.8
+      # 镜像自发布以来已更改（以前使用的仓库为 "k8s.gcr.io"）
+      - image: registry.k8s.io/nginx-slim:0.8
         imagePullPolicy: IfNotPresent
         name: nginx
   updateStrategy:
@@ -107,15 +110,15 @@ has 5 replicas, with `maxUnavailable` set to 2 and `partition` set to 0.
 `maxUnavailable` 设置为 2 并将 `partition` 设置为 0。
 
 <!--
-I can trigger a rolling update by changing the image to `k8s.gcr.io/nginx-slim:0.9`. Once I initiate the rolling update, I can 
+I can trigger a rolling update by changing the image to `registry.k8s.io/nginx-slim:0.9`. Once I initiate the rolling update, I can 
 watch the pods update 2 at a time as the current value of maxUnavailable is 2. The below output shows a span of time and is not 
 complete.  The maxUnavailable can be an absolute number (for example, 2) or a percentage of desired Pods (for example, 10%). The 
-absolute number is calculated from percentage by rounding down. 
+absolute number is calculated from percentage by rounding up to the nearest integer.
 -->
-我可以通过将镜像更改为 `k8s.gcr.io/nginx-slim:0.9` 来触发滚动更新。一旦开始滚动更新，
+我可以通过将镜像更改为 `registry.k8s.io/nginx-slim:0.9` 来触发滚动更新。一旦开始滚动更新，
 就可以看到一次更新 2 个 Pod，因为 `maxUnavailable` 的当前值是 2。
 下面的输出显示了一个时间段内的结果，但并不是完整过程。`maxUnavailable` 可以是绝对数值（例如 2）或所需 Pod
-的百分比（例如 10%），绝对数是通过百分比计算结果进行四舍五入得出的。
+的百分比（例如 10%），绝对数是通过百分比计算结果进行四舍五入到最接近的整数得出的。
 
 ```
 kubectl get pods --watch