bounce multiple servers using ant

Question

Hi All, This is restart target code which is defined in build.xml

---

target name="restart"

propertycopy name="remote.host" from="deploy.${target.env}.host.${remote.id}"

propertycopy name="remote.port" from="deploy.${target.env}.port.${remote.id}"

sshexec trust="true"
  host="${remote.host}"
  port="${remote.port}"
  username="${scm.user}"
  keyfile="${scm.user.key}"
  command="sudo /usr/local/bin/bounce_jboss"

target

---

server information is defined in build.properties.

The above code is working fine, but the restarting process is very late bcas its stopping-starting server one and later its stopping-starting another server,

Is there a way where i can restart both servers parallely with a time frame of 45 seconds.

Answer 1

Have you investigated the Ant Parallel task ? You should be able to parallelise the rebooting fairly simply using this.

e.g.

<parallel>
    <!-- first server reboot -->
    <ssh ...>
    <!-- second server reboot -->
    <ssh ...>
</parallel>

Answer 2

The parallel task will work for you. Another example:

<target name="restart" ... >
    <parallel>
        <!-- first server reboot call -->
        <!-- second server reboot call -->
    </parallel>
</target>

From command line:

>ant restart

Don't execute "ant restart" twice. Only call it once and your servers should only restart once.