K8S删除Job时报错java.lang.IllegalStateException: Expected a string but was BEGIN_OBJECT

1.问题描述

通过：

 BatchV1Api apiInstance = new BatchV1Api();
 apiInstance.deleteNamespacedJob(name, namespace, new V1DeleteOptions(), null, null, 0, null, null);

对Kubernets的job进行删除时报错:
java.lang.IllegalStateException: Expected a string but was BEGIN_OBJECT at line 1 column 1436 path $.status
但实际删除是成功的。

2.原因

通过查找发现这是目前Kubernetes的一个bug，无论是删除Job还是Pod都会有这个错误。

在上面代码中，因为deleteNamespacedJob期待返回的对象是V1Status，而实际返回的是一个V1Job，当将response的内容反序列化成V1Status就报错了。

具体可参考：
https://github.com/kubernetes/kubernetes/issues/65121

3.解决

为了让程序正确运行，通过try{}catch{}的方式

        BatchV1Api apiInstance = new BatchV1Api();
        try {
            apiInstance.deleteNamespacedJob(name, namespace, new V1DeleteOptions(), null, null, 0, null, null);
        } catch (Exception e) {
            if (e.getCause() instanceof IllegalStateException) {
                IllegalStateException ise = (IllegalStateException) e.getCause();
                if (ise.getMessage() != null && ise.getMessage().contains("Expected a string but was BEGIN_OBJECT")) {
                    log.info("Catching exception because of issue https://github.com/kubernetes/kubernetes/issues/65121");
                } else {
                    //...throw error  or log
                }
            } else {
              //...throw error or log
            }
        }