SonmiHPCpdsh 并行执行命令
pdsh全称是parallel distributed shell，可以并行执行对远程目标主机的操作。当需要在集群中批量对多个节点进行命令操作时可以使用该工具，SonmiHPC中已经预集成了该工具，因此可以直接进行使用。
下面以由3个节点组成的集群为例，进行说明。
[sonmi@sonmi ~]$ sonmictl node info
+-------------+-----------------+-------------------+------+-----------------+----------+-------+
| NODENAME | CPU ALLOC/TOTAL | MEMORY FREE/TOTAL | GRES | CPU TEMPERATURE | CPU LOAD | STATE |
+-------------+-----------------+-------------------+------+-----------------+----------+-------+
| sonmi | 0 / 8 | 4.1GB / 7.5GB | -- | VM Not Support | 0.03 | IDLE |
| compute-0-0 | 0 / 8 | 5.2GB / 7.5GB | -- | VM Not Support | 0.00 | IDLE |
| compute-0-1 | 0 / 8 | 6GB / 7.5GB | -- | VM Not Support | 0.00 | IDLE |
+-------------+-----------------+-------------------+------+-----------------+----------+-------+[sonmi@sonmi ~]$ sonmictl node info
+-------------+-----------------+-------------------+------+-----------------+----------+-------+
| NODENAME | CPU ALLOC/TOTAL | MEMORY FREE/TOTAL | GRES | CPU TEMPERATURE | CPU LOAD | STATE |
+-------------+-----------------+-------------------+------+-----------------+----------+-------+
| sonmi | 0 / 8 | 4.1GB / 7.5GB | -- | VM Not Support | 0.03 | IDLE |
| compute-0-0 | 0 / 8 | 5.2GB / 7.5GB | -- | VM Not Support | 0.00 | IDLE |
| compute-0-1 | 0 / 8 | 6GB / 7.5GB | -- | VM Not Support | 0.00 | IDLE |
+-------------+-----------------+-------------------+------+-----------------+----------+-------+使用示例
- 对所有节点执行hostname命令
-w: 参数指定要执行的节点，有多个节点可以用逗号进行拼接，也可以用[]指定连续的多个节点，如compute-0-[0-2,5-8]
shell
pdsh -w sonmi,compute-0-[0-1] hostnamepdsh -w sonmi,compute-0-[0-1] hostname输出如下：
sonmi: sonmi.local
compute-0-0: compute-0-0
compute-0-1: compute-0-1sonmi: sonmi.local
compute-0-0: compute-0-0
compute-0-1: compute-0-12.排除部分节点
-x 排除指定的节点
shell
pdsh -w compute-0-[0-8] -x compute-0-5 hostnamepdsh -w compute-0-[0-8] -x compute-0-5 hostname