26.5. 验证节点问题检测程序正在运行
验证节点问题检测程序是否活跃：
运行以下命令来获取 Problem Node Detector pod 的名称：
# oc get pods -n openshift-node-problem-detector NAME READY STATUS RESTARTS AGE node-problem-detector-8z8r8 1/1 Running 0 1h node-problem-detector-nggjv 1/1 Running 0 1h
运行以下命令，以查看 Problem Node Detector pod 的日志信息：
# oc logs -n openshift-node-problem-detector <pod_name>
输出结果应类似于以下内容：
# oc logs -n openshift-node-problem-detector node-problem-detector-c6kng I0416 23:22:00.641354 1 log_monitor.go:63] Finish parsing log monitor config file: {WatcherConfig:{Plugin:journald PluginConfig:map[source:kernel] LogPath:/host/log/journal Lookback:5m} BufferSize:10 Source:kernel-monitor DefaultConditions:[{Type:KernelDeadlock Status:false Transition:0001-01-01 00:00:00 +0000 UTC Reason:KernelHasNoDeadlock Message:kernel has no deadlock}]通过模拟节点上的事件来测试节点问题检测程序：
# echo "kernel: divide error: 0000 [#0] SMP." >> /dev/kmsg
通过模拟节点上的条件来测试节点问题检测程序：
# echo "kernel: task docker:7 blocked for more than 300 seconds." >> /dev/kmsg
