本文整理汇总了Python中mpp.lib.config.GPDBConfig.get_master_standbyhost方法的典型用法代码示例。如果您正苦于以下问题：Python GPDBConfig.get_master_standbyhost方法的具体用法？Python GPDBConfig.get_master_standbyhost怎么用？Python GPDBConfig.get_master_standbyhost使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类mpp.lib.config.GPDBConfig的用法示例。
在下文中一共展示了GPDBConfig.get_master_standbyhost方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: OODClass
# 需要导入模块: from mpp.lib.config import GPDBConfig [as 别名]
# 或者: from mpp.lib.config.GPDBConfig import get_master_standbyhost [as 别名]
class OODClass(MPPTestCase):
def __init__(self,methodName):
self.gp = GpactivateStandby()
self.verify = StandbyVerify()
self.config = GPDBConfig()
self.disk = Disk()
self.sdby_mdd = os.environ.get('MASTER_DATA_DIRECTORY')
self.pgport = os.environ.get('PGPORT')
super(OODClass,self).__init__(methodName)
def initiate_standby(self):
self.gp.create_standby(local='no')
def check_standby(self):
self.assertFalse(self.verify.check_standby_processes())
def get_standby_dbid(self):
std_sql = "select dbid from gp_segment_configuration where content='-1' and role='m';"
standby_dbid = PSQL.run_sql_command(std_sql, flags = '-q -t', dbname= 'template1')
return standby_dbid.strip()
def restart_standby(self):
sdby_host = self.config.get_master_standbyhost()
stdby_dbid = self.get_standby_dbid()
cmd="pg_ctl -D %s -o '-p %s --gp_dbid=%s --gp_num_contents_in_cluster=2 --silent-mode=true -i -M master --gp_contentid=-1 -x 0 -E' start &"%(self.sdby_mdd, self.pgport, stdby_dbid)
self.assertTrue(self.gp.run_remote(sdby_host,cmd, self.pgport, self.sdby_mdd))
self.assertTrue(self.verify.check_standby_processes())
def check_diskusage(self, host): # This now checks for only /data
(rc, result) = self.disk.get_disk_usage(host, '/data')
if rc != 0:
raise Exception ("The specified mount /data is not present for the device")
else:
available_usage = result
return available_usage
def _fill(self, filename, host):
cmd_prefix = "ssh " +host+ " \""
cmd_postfix = "\""
location = '/data'
if not os.path.isdir('%s/diskfill/' % location):
os.makedirs('%s/diskfill/' % location)
cmd_str = cmd_prefix + "dd if=/dev/zero bs=16384K count=2000 of=" +location+ "/diskfill/" + filename +cmd_postfix
cmd = Command(name='Fill Disk', cmdStr=cmd_str)
tinctest.logger.info(" %s" % cmd)
cmd.run(validateAfter=False)
result = cmd.get_results()
if result.rc !=0:
tinctest.logger.error('disk fill not working. Its already full')
def filldisk(self):
host = self.config.get_master_standbyhost()
disk_usage = self.check_diskusage(host)
i = 0
while(int(disk_usage.strip()) >1000000):
filename = 'new_space_%s' % i
self._fill(filename, host)
i +=1
disk_usage = self.check_diskusage(host)
def remove_fillfiles(self, filename, host):
location = '/data'
cmd_str = "ssh %s rm %s/diskfill/%s*" % (host,location, filename)
cmd = Command(name='Remove fill files', cmdStr=cmd_str)
tinctest.logger.info(" %s" % cmd)
cmd.run(validateAfter=False)
result = cmd.get_results()
if result.rc !=0:
raise Exception('Unable to delete the fill files')
return
def cleanup(self):
host = self.config.get_master_standbyhost()
self.remove_fillfiles('new_space', host)
#Recover segemnts in case segments and standby were on the same host
cmd = Command(name='gprecoverseg', cmdStr='gprecoverseg -a')
tinctest.logger.info(" %s" % cmd)
cmd.run(validateAfter=False)
result = cmd.get_results()
if result.rc !=0:
raise Exception('gprecoverseg failed')
while(self.config.is_not_insync_segments() == False):
tinctest.logger.info('Waiting for DB to be in sync')