134 lines
3.9 KiB
Python
134 lines
3.9 KiB
Python
#!/usr/bin/env python
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#
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# Copyright (c) 2015 Wind River Systems, Inc.
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#
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# SPDX-License-Identifier: Apache-2.0
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#
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# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# All Rights Reserved.
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#
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from __future__ import print_function
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import argparse
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import sys
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import time
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from cgtsclient.common import utils
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from cgtsclient import exc
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CONTROLLER = 'controller'
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def _print_drbdsync_show(drbdconfig):
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fields = ['uuid',
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'isystem_uuid',
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'created_at',
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'updated_at',
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'link_util',
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'num_parallel',
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'rtt_ms']
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data = [(f, getattr(drbdconfig, f, '')) for f in fields]
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utils.print_tuple_list(data)
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def _print_controller_config_show(ihosts):
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fields = ['id', 'hostname', 'personality',
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'administrative', 'operational', 'availability',
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'config_status']
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field_labels = list(fields)
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utils.print_list(ihosts, fields, field_labels, sortby=0)
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def do_drbdsync_show(cc, args):
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"""Show DRBD sync config details."""
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drbdconfigs = cc.drbdconfig.list()
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_print_drbdsync_show(drbdconfigs[0])
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print('')
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ihosts = cc.ihost.list_personality(personality=CONTROLLER)
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_print_controller_config_show(ihosts)
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@utils.arg('--util',
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metavar='<percent>',
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default=None,
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help="Engineered percentage of link utilization for DRBD sync.")
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@utils.arg('--rtt_ms',
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metavar='<round-trip-time ms>',
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default=None,
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help=argparse.SUPPRESS)
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def do_drbdsync_modify(cc, args):
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"""Modify DRBD sync rate parameters."""
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drbdconfigs = cc.drbdconfig.list()
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drbd = drbdconfigs[0]
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attributes = []
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if args.util is not None:
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attributes.append('link_util=%s' % args.util)
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if args.rtt_ms is not None:
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attributes.append('rtt_ms=%s' % args.rtt_ms)
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if len(attributes) > 0:
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attributes.append('action=apply')
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else:
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print("No options provided.")
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return
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patch = utils.args_array_to_patch("replace", attributes)
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rwfields = ['link_util', 'rtt_ms', 'action']
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for pa in patch:
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key = pa['path'][1:]
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if key not in rwfields:
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raise exc.CommandError('Invalid or Read-Only attribute: %s'
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% pa['path'][1:])
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# Prevent update if controllers are mid-configuration
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personality = 'controller'
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is_config = False
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ihosts = cc.ihost.list_personality(personality=CONTROLLER)
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for ihost in ihosts:
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if ihost.config_target and ihost.config_applied != ihost.config_target:
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is_config = True
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print("host %s is configuring ..." % (ihost.hostname))
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if is_config:
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print("Cannot apply update while controller configuration in progress.")
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return
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try:
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drbd = cc.drbdconfig.update(drbd.uuid, patch)
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except exc.HTTPNotFound:
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raise exc.CommandError('DRBD Config not found: %s' % drbd.uuid)
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_print_drbdsync_show(drbd)
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# Wait for configuration to finish.
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wait_interval = 8
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configuration_timeout = 90
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do_wait = True
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LOOP_MAX = int(configuration_timeout / wait_interval)
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for x in range(0, LOOP_MAX):
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ihosts = cc.ihost.list_personality(personality=CONTROLLER)
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do_wait = False
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hosts = []
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for ihost in ihosts:
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if ihost.config_target and ihost.config_applied != ihost.config_target:
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do_wait = True
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hosts.append(ihost.hostname)
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if do_wait:
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if x == 0:
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print(("waiting for hosts: %s to finish configuring" %
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', '.join(hosts)), end=' ')
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sys.stdout.flush()
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else:
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print(".", end=' ')
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sys.stdout.flush()
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time.sleep(wait_interval)
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else:
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print('')
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print("DRBD configuration finished.")
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break
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if do_wait:
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print("DRBD configuration timed out.")
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