IllegalArgumentException {
// actually take the snapshot
TakeSnapshotResponse response = takeSnapshotAsync(snapshot);
final IsSnapshotDoneRequest request = IsSnapshotDoneRequest.newBuilder().setSnapshot(snapshot)
.build();
IsSnapshotDoneResponse done = null;
long start = EnvironmentEdgeManager.currentTimeMillis();
long max = response.getExpectedTimeout();
long maxPauseTime = max / this.numRetries;
int tries = 0;
LOG.debug("Waiting a max of " + max + " ms for snapshot '" +
ClientSnapshotDescriptionUtils.toString(snapshot) + "'' to complete. (max " +
maxPauseTime + " ms per retry)");
while (tries == 0
|| ((EnvironmentEdgeManager.currentTimeMillis() - start) < max && !done.getDone())) {
try {
// sleep a backoff <= pauseTime amount
long sleep = getPauseTime(tries++);
sleep = sleep > maxPauseTime ? maxPauseTime : sleep;
LOG.debug("(#" + tries + ") Sleeping: " + sleep +
"ms while waiting for snapshot completion.");
Thread.sleep(sleep);
} catch (InterruptedException e) {
LOG.debug("Interrupted while waiting for snapshot " + snapshot + " to complete");
Thread.currentThread().interrupt();
}
LOG.debug("Getting current status of snapshot from master...");
done = executeCallable(new MasterAdminCallable<IsSnapshotDoneResponse>(getConnection()) {
@Override
public IsSnapshotDoneResponse call() throws ServiceException {
return masterAdmin.isSnapshotDone(null, request);
}
});
};
if (!done.getDone()) {
throw new SnapshotCreationException("Snapshot '" + snapshot.getName()
+ "' wasn't completed in expectedTime:" + max + " ms", snapshot);
}
}