def create_segment(**kwargs):
"""
Takes the same arguments as gparray.Segment's constructor, but with friendly
defaults to minimize typing.
"""
content = kwargs.get('content', 0)
role = kwargs.get('role', gparray.ROLE_PRIMARY)
preferred_role = kwargs.get('preferred_role', role)
dbid = kwargs.get('dbid', 0)
mode = kwargs.get('mode', gparray.MODE_SYNCHRONIZED)
status = kwargs.get('status', gparray.STATUS_UP)
hostname = kwargs.get('hostname', 'localhost')
address = kwargs.get('address', 'localhost')
port = kwargs.get('port', 15432)
datadir = kwargs.get('datadir', '/tmp/')
return gparray.Segment(content, preferred_role, dbid, role, mode, status,
hostname, address, port, datadir)
def addMirror(self, resultOut, primary, targetHost, address, port,
mirrorDataDir):
"""
Add a mirror to the gpArray backing this calculator, also update resultOut and do some other checking
Unlike __addMirrorForTargetHost, this does not require that the segments be added to
a host that already has a primary
"""
if targetHost not in self.__mirrorsAddedByHost:
self.__mirrorsAddedByHost[targetHost] = 0
self.__primaryPortBaseByHost[
targetHost] = self.__minPrimaryPortOverall
self.__primariesUpdatedToHaveMirrorsByHost[targetHost] = 0
mirrorIndexOnTargetHost = self.__mirrorsAddedByHost[targetHost]
assert mirrorIndexOnTargetHost is not None
mirror = gparray.Segment(content=primary.getSegmentContentId(),
preferred_role=gparray.ROLE_MIRROR,
dbid=self.__nextDbId,
role=gparray.ROLE_MIRROR,
mode=gparray.MODE_NOT_SYNC,
status=gparray.STATUS_UP,
hostname=targetHost,
address=address,
port=port,
datadir=mirrorDataDir)
self.__gpArray.addSegmentDb(mirror)
primary.setSegmentMode(gparray.MODE_NOT_SYNC)
resultOut.append(GpMirrorToBuild(None, primary, mirror, True))
self.__primariesUpdatedToHaveMirrorsByHost[
primary.getSegmentHostName()] += 1
self.__mirrorsAddedByHost[targetHost] = mirrorIndexOnTargetHost + 1
self.__nextDbId += 1
