mirror of
https://github.com/apache/impala.git
synced 2025-12-30 21:02:41 -05:00
9e043e862c
We run wat-for-hbase-master.py after starting hbase to account for a race between the master and region server. This script has not been working for some time. It caused no ill effects sinc the said race was absent. However, the race has manifested itself again, so the script needs to be fixed. Setting the correct classpath does so. Change-Id: I783a7473cfd24a9cb66711f5428f7052ceb96282 Reviewed-on: http://gerrit.ent.cloudera.com:8080/1756 Reviewed-by: Ishaan Joshi <ishaan@cloudera.com> Tested-by: Ishaan Joshi <ishaan@cloudera.com>
31 lines
849 B
Python
31 lines
849 B
Python
# Copyright (c) Cloudera 2012.
|
|
|
|
from subprocess import Popen, PIPE
|
|
import time
|
|
|
|
now = time.time()
|
|
TIMEOUT_SECONDS = 30.0
|
|
|
|
while time.time() - now < TIMEOUT_SECONDS:
|
|
print "Polling /hbase/rs"
|
|
p = Popen(["java",
|
|
"org.apache.zookeeper.ZooKeeperMain",
|
|
"-server",
|
|
"localhost:2181",
|
|
"get",
|
|
"/hbase/rs"], stderr=PIPE, stdout=PIPE)
|
|
out, err = p.communicate()
|
|
if "Could not find the main class: org.apache.zookeeper.ZooKeeperMain" in err:
|
|
print """CLASSPATH does not contain org.apache.zookeeper.ZooKeeperMain.
|
|
Please check your CLASSPATH"""
|
|
exit(1)
|
|
|
|
if "numChildren" in err:
|
|
print "HBase master is up, found in %2.1fs" % (time.time() - now,)
|
|
exit(0)
|
|
|
|
time.sleep(0.5)
|
|
|
|
print "Hbase master did NOT write /hbase/rs in %2.1fs" % (time.time() - now,)
|
|
exit(1)
|