private void waitForNewProcedures() {
// watch for new procedues that we need to start subprocedures for
LOG.debug("Looking for new procedures under znode:'" + zkController.getAcquiredBarrier() + "'");
List<String> runningProcedures = null;
try {
runningProcedures =
ZKUtil.listChildrenAndWatchForNewChildren(
zkController.getWatcher(), zkController.getAcquiredBarrier());
if (runningProcedures == null) {
LOG.debug("No running procedures.");
return;
}
} catch (KeeperException e) {
member.controllerConnectionFailure(
"General failure when watching for new procedures", e, null);
}
if (runningProcedures == null) {
LOG.debug("No running procedures.");
return;
}
for (String procName : runningProcedures) {
// then read in the procedure information
String path = ZKUtil.joinZNode(zkController.getAcquiredBarrier(), procName);
startNewSubprocedure(path);
}
}
