By default Ubuntu/Debian OS wont load iptable on boot.
So to load iptables on boot use follow procedure:
Save iptable conf with iptables-save command: iptables-save > /etc/iptables.conf
Next, open file with name /etc/network/if-up.d/iptables and add following content: #!/bin/sh
iptables-restore < /etc/iptables.conf
Change permission file /etc/network/if-up.d/iptables as executable with following command: chmod +x /etc/network/if-up.d/iptables
At the NSD Node, I issue the command
# mmaddnode -N node1
Thu Jul 23 13:40:12 SGT 2015: mmaddnode: Processing node node1
mmaddnode: Node node1 was not added to the cluster.
The node appears to already belong to a GPFS cluster.
mmaddnode: mmaddnode quitting. None of the specified nodes are valid.
mmaddnode: Command failed. Examine previous error messages to determine cause.
A new release of the Node.js driver for Oracle Database is now on npmjs.com and
node-oracledb 0.7 connects Node.js 0.10, Node.js 0.12, and io.js to
Oracle Database. It runs on a number of platforms. For more
information about node-oracledb see the
http://www.tecmint.com/setting-up-pound-web-server-load-balancing-in-linux/POUND is a load balancing program developed by ITSECURITY Company. It is a lightweight open source reverse proxy tool which can be used as a web-server load balancer to distribute load among several servers. There are several advantages POUND gives to end user which are very convenient and does the job right.
When a GPFS client machine rebooted, the GPFS File System was unmounted with no error sign. When NSD issues the command “mmstartup -N client_node“, similarly, there is no error sign.
But if you do a
# mmdsh -v -N all "/usr/lpp/mmfs/bin/mmfsadm dump waiters" > all.waiters
You may see something like
.......Sync handler: on ThCond 0x1015236D30 (0xFFFFC20015236D30) (wait for inodeFlushFlag), reason 'waiting for the flush flag'......