account: MasterNotFoundError Unhandled exception

[jkasarherou]

ISSUE TYPE

• Feature Idea

COMPONENT NAME

account

SDS VERSION

openio 4.1.25

CONFIGURATION

[OPENIO]
conscience=10.0.2.15:6000
zookeeper=10.0.2.15:6005
proxy=10.0.2.15:6006
event-agent=beanstalk://10.0.2.15:6014
meta1_digits=3
udp_allowed=yes
ns.storage_policy=SINGLE
ns.service_update_policy=meta2=KEEP|1|1|;rdir=KEEP|1|1|user_is_a_service=rawx;sqlx=KEEP|3|1|;

OS / ENVIRONMENT

NAME="Ubuntu"
VERSION="16.04.4 LTS (Xenial Xerus)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 16.04.4 LTS"
VERSION_ID="16.04"
HOME_URL="http://www.ubuntu.com/"
SUPPORT_URL="http://help.ubuntu.com/"
BUG_REPORT_URL="http://bugs.launchpad.net/ubuntu/"
VERSION_CODENAME=xenial
UBUNTU_CODENAME=xenial

SUMMARY

STEPS TO REPRODUCE

Run account service with missing master in redis-sentinel.

EXPECTED RESULTS

No ugly traceback in account logs.

ACTUAL RESULTS

2018-06-25T03:07:47.281381+00:00 ubuntu-xenial OIO,OPENIO,account,0: err  11386 7F99A7B89B90 log ERROR ERROR Unhandled exception in request#012Traceback (most recent call last):#012  File "/usr/lib/python2.7/dist-packages/oio/common/wsgi.py", line 107, in dispatch_request#012    resp = getattr(self, 'on_' + endpoint)(req)#012  File "/usr/lib/python2.7/dist-packages/oio/account/server.py", line 71, in on_status#012    status = self.backend.status()#012  File "/usr/lib/python2.7/dist-packages/oio/account/backend.py", line 428, in status#012    account_count = conn.hlen('accounts:')#012  File "/usr/lib/python2.7/dist-packages/redis/client.py", line 1879, in hlen#012    return self.execute_command('HLEN', name)#012  File "/usr/lib/python2.7/dist-packages/redis/client.py", line 578, in execute_command#012    connection.send_command(*args)#012  File "/usr/lib/python2.7/dist-packages/redis/connection.py", line 563, in send_command#012    self.send_packed_command(self.pack_command(*args))#012  File "/usr/lib/python2.7/dist-packages/redis/connection.py", line 538, in send_packed_command#012    self.connect()#012  File "/usr/lib/python2.7/dist-packages/redis/sentinel.py", line 44, in connect#012    self.connect_to(self.connection_pool.get_master_address())#012  File "/usr/lib/python2.7/dist-packages/redis/sentinel.py", line 100, in get_master_address#012    self.service_name)#012  File "/usr/lib/python2.7/dist-packages/redis/sentinel.py", line 222, in discover_master#012    raise MasterNotFoundError("No master found for %r" % (service_name,))#012MasterNotFoundError: No master found for 'OPENIO-master-1'