Github user nchammas commented on a diff in the pull request:
https://github.com/apache/spark/pull/3195#discussion_r20527728
--- Diff: ec2/spark_ec2.py ---
@@ -655,33 +663,44 @@ def wait_for_cluster_state(cluster_instances,
cluster_state, opts):
(would be nice to replace this with a proper enum:
http://stackoverflow.com/a/1695250)
"""
sys.stdout.write(
- "Waiting for all instances in cluster to enter '{s}'
state.".format(s=cluster_state)
+ "Waiting for cluster to enter '{s}' state.".format(s=cluster_state)
)
sys.stdout.flush()
- num_attempts = 0
+ start_time = datetime.now()
+
+ conn = ec2.connect_to_region(opts.region)
while True:
- time.sleep(3 * num_attempts)
+ time.sleep(5) # seconds
for i in cluster_instances:
- s = i.update() # capture output to suppress print to screen
in newer versions of boto
--- End diff --
Nope, it never was.
When I originally added this in, I was testing in the Python shell and got
confused. `i.update()` echoes its return value to the shell, so I thought I
needed to suppress that output. But as part of a program, nothing gets echoed.
We don't need the return value, so there's no need to capture it.
It's like just typing `var` in the shell and seeing its value. As part of a
program, `var` alone will do nothing.
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