31a2ef1935
Instead we save the account in the a list, where the index to the account is the partition number. Change-Id: Ie4abefee48a3b237306a1e301ffa798e24e3f1db Signed-off-by: Luis Pabon <lpabon@redhat.com> Reviewed-on: http://review.gluster.org/5120 Reviewed-by: Peter Portante <pportant@redhat.com> Tested-by: Peter Portante <pportant@redhat.com>
131 lines
4.8 KiB
Python
131 lines
4.8 KiB
Python
# Copyright (c) 2013 Red Hat, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from ConfigParser import ConfigParser
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from swift.common.ring import ring
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from swift.common.utils import search_tree
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from gluster.swift.common.Glusterfs import SWIFT_DIR
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reseller_prefix = "AUTH_"
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conf_files = search_tree(SWIFT_DIR, "proxy-server*", 'conf')
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if conf_files:
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conf_file = conf_files[0]
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_conf = ConfigParser()
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if conf_files and _conf.read(conf_file):
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if _conf.defaults().get("reseller_prefix", None):
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reseller_prefix = _conf.defaults().get("reseller_prefix")
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else:
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for key, value in _conf._sections.items():
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if value.get("reseller_prefix", None):
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reseller_prefix = value["reseller_prefix"]
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break
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if not reseller_prefix.endswith('_'):
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reseller_prefix = reseller_prefix + '_'
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class Ring(ring.Ring):
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def __init__(self, *args, **kwargs):
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self.false_node = {'zone': 1, 'weight': 100.0, 'ip': '127.0.0.1',
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'id': 0, 'meta': '', 'device': 'volume_not_in_ring',
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'port': 6012}
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self.account_list = []
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ring.Ring.__init__(self, *args, **kwargs)
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def _get_part_nodes(self, part):
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seen_ids = set()
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try:
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account = self.account_list[part]
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except IndexError:
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return [self.false_node]
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else:
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nodes = []
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for dev in self._devs:
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if dev['device'] == account:
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if dev['id'] not in seen_ids:
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seen_ids.add(dev['id'])
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nodes.append(dev)
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if not nodes:
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nodes = [self.false_node]
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return nodes
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def get_part_nodes(self, part):
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"""
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Get the nodes that are responsible for the partition. If one
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node is responsible for more than one replica of the same
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partition, it will only appear in the output once.
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:param part: partition to get nodes for
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:returns: list of node dicts
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See :func:`get_nodes` for a description of the node dicts.
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"""
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return self._get_part_nodes(part)
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def get_nodes(self, account, container=None, obj=None):
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"""
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Get the partition and nodes for an account/container/object.
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If a node is responsible for more than one replica, it will
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only appear in the output once.
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:param account: account name
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:param container: container name
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:param obj: object name
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:returns: a tuple of (partition, list of node dicts)
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Each node dict will have at least the following keys:
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====== ===============================================================
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id unique integer identifier amongst devices
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weight a float of the relative weight of this device as compared to
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others; this indicates how many partitions the builder will try
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to assign to this device
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zone integer indicating which zone the device is in; a given
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partition will not be assigned to multiple devices within the
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same zone
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ip the ip address of the device
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port the tcp port of the device
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device the device's name on disk (sdb1, for example)
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meta general use 'extra' field; for example: the online date, the
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hardware description
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====== ===============================================================
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"""
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if account.startswith(reseller_prefix):
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account = account.replace(reseller_prefix, '', 1)
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# Save the account name in the table
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# This makes part be the index of the location of the account
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# in the list
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try:
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part = self.account_list.index(account)
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except ValueError:
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self.account_list.append(account)
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part = self.account_list.index(account)
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return part, self._get_part_nodes(part)
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def get_more_nodes(self, part):
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"""
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Generator to get extra nodes for a partition for hinted handoff.
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:param part: partition to get handoff nodes for
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:returns: generator of node dicts
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See :func:`get_nodes` for a description of the node dicts.
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Should never be called in the swift UFO environment, so yield nothing
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"""
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yield self.false_node
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