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Add support to clear-buffer-cache.py for checking SPARK_HOME for slaves #342

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Add support to clear-buffer-cache.py for checking SPARK_HOME for slaves #342

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clear-buffer-cache.py assumes the slaves file is located under /root/…
rnowling Jun 25, 2014
bdd2b37
Updated previous commit to clear-buffer-cache.py: cleaned up code, ch…
rnowling Jun 25, 2014
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17 changes: 16 additions & 1 deletion bin/dev/clear-buffer-cache.py
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Original file line number Diff line number Diff line change
Expand Up @@ -20,8 +20,23 @@
import os
import thread
import time
import sys

machinesFile = "/root/spark-ec2/slaves"
EC2_MACHINES_FILE = "/root/spark-ec2/slaves"

sparkHome = os.getenv("SPARK_HOME")

machinesFile = None
if os.path.exists(EC2_MACHINES_FILE):
machinesFile = EC2_MACHINES_FILE
elif sparkHome is not None and os.path.exists(sparkHome + "/conf/slaves"):
machinesFile = sparkHome + "/conf/slaves"

if machinesFile is None:
print "Could not find Spark slaves file."
sys.exit(1)


machs = open(machinesFile).readlines()
machs = map(lambda s: s.strip(),machs)
machCount = len(machs)
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