def get_slave_bricks_status(host, vol):
po = Popen(['gluster', '--xml', '--remote-host=' + host,
'volume', 'status', vol, "detail"],
stdout=PIPE, stderr=PIPE)
vix = po.stdout.read()
po.wait()
po.terminate_geterr(fail_on_err=False)
if po.returncode != 0:
logging.info("Volume status command failed, unable to get "
"list of up nodes of %s, returning empty list: %s" %
(vol, po.returncode))
return []
vi = XET.fromstring(vix)
if vi.find('opRet').text != '0':
logging.info("Unable to get list of up nodes of %s, "
"returning empty list: %s" %
(vol, vi.find('opErrstr').text))
return []
up_hosts = set()
try:
for el in vi.findall('volStatus/volumes/volume/node'):
if el.find('status').text == '1':
up_hosts.add(el.find('hostname').text)
except (ParseError, AttributeError, ValueError) as e:
logging.info("Parsing failed to get list of up nodes of %s, "
"returning empty list: %s" % (vol, e))
return list(up_hosts)
def monitor(*resources):
# Mount geo-rep management volume
if gconf.meta_volume:
mgmt_mnt = os.path.join(gconf.working_dir, gconf.meta_volume)
if not os.path.exists(mgmt_mnt):
try:
os.makedirs(mgmt_mnt)
except OSError:
ex = sys.exc_info()[1]
if ex.errno == EEXIST:
pass
else:
raise
if not os.path.ismount(mgmt_mnt):
po = Popen(["mount", "-t", "glusterfs", "localhost:%s"
% gconf.meta_volume, mgmt_mnt], stdout=PIPE,
stderr=PIPE)
po.wait()
po.terminate_geterr()
# Check if gsyncd restarted in pause state. If
# yes, send SIGSTOP to negative of monitor pid
# to go back to pause state.
if gconf.pause_on_start:
os.kill(-os.getpid(), signal.SIGSTOP)
"""oh yeah, actually Monitor is used as singleton, too"""
return Monitor().multiplex(*distribute(*resources))
def subcmd_slave(args):
from resource import GLUSTER, Popen
Popen.init_errhandler()
slavevol = args.slave.split("::")[-1]
local = GLUSTER("localhost", slavevol)
local.connect()
local.service_loop()
def subcmd_slave(args):
from resource import GLUSTER, Popen
Popen.init_errhandler()
slavevol = args.slave.split("::")[-1]
local = GLUSTER("localhost", slavevol)
local.connect()
local.service_loop()
def subcmd_voluuidget(args):
from subprocess import Popen, PIPE
import xml.etree.ElementTree as XET
ParseError = XET.ParseError if hasattr(XET, 'ParseError') else SyntaxError
cmd = [
'gluster', '--xml', '--remote-host=' + args.host, 'volume', 'info',
args.volname
]
if args.inet6:
cmd.append("--inet6")
po = Popen(cmd,
bufsize=0,
stdin=None,
stdout=PIPE,
stderr=PIPE,
universal_newlines=True)
vix, err = po.communicate()
if po.returncode != 0:
logging.info(
lf(
"Volume info failed, unable to get "
"volume uuid of slavevol, "
"returning empty string",
slavevol=args.volname,
slavehost=args.host,
error=po.returncode))
return ""
vi = XET.fromstring(vix)
if vi.find('opRet').text != '0':
logging.info(
lf(
"Unable to get volume uuid of slavevol, "
"returning empty string",
slavevol=args.volname,
slavehost=args.host,
error=vi.find('opErrstr').text))
return ""
try:
voluuid = vi.find("volInfo/volumes/volume/id").text
except (ParseError, AttributeError, ValueError) as e:
logging.info(
lf(
"Parsing failed to volume uuid of slavevol, "
"returning empty string",
slavevol=args.volname,
slavehost=args.host,
error=e))
voluuid = ""
print(voluuid)
def subcmd_monitor(args):
import monitor
from resource import GLUSTER, SSH, Popen
go_daemon = False if args.debug else True
monitor.startup(go_daemon)
Popen.init_errhandler()
local = GLUSTER("localhost", args.master)
slavehost, slavevol = args.slave.split("::")
remote = SSH(slavehost, slavevol)
return monitor.monitor(local, remote)
def subcmd_monitor(args):
import monitor
from resource import GLUSTER, SSH, Popen
go_daemon = False if args.debug else True
monitor.startup(go_daemon)
Popen.init_errhandler()
local = GLUSTER("localhost", args.master)
slavehost, slavevol = args.slave.split("::")
remote = SSH(slavehost, slavevol)
return monitor.monitor(local, remote)
def subcmd_worker(args):
import os
import fcntl
from resource import GLUSTER, SSH, Popen
Popen.init_errhandler()
fcntl.fcntl(args.feedback_fd, fcntl.F_SETFD, fcntl.FD_CLOEXEC)
local = GLUSTER("localhost", args.master)
slavehost, slavevol = args.slave.split("::")
remote = SSH(slavehost, slavevol)
remote.connect_remote()
local.connect()
logging.info("Worker spawn successful. Acknowledging back to monitor")
os.close(args.feedback_fd)
local.service_loop(remote)
def subcmd_worker(args):
import os
import fcntl
from resource import GLUSTER, SSH, Popen
Popen.init_errhandler()
fcntl.fcntl(args.feedback_fd, fcntl.F_SETFD, fcntl.FD_CLOEXEC)
local = GLUSTER("localhost", args.master)
slavehost, slavevol = args.slave.split("::")
remote = SSH(slavehost, slavevol)
remote.connect_remote()
local.connect()
logging.info("Worker spawn successful. Acknowledging back to monitor")
os.close(args.feedback_fd)
local.service_loop(remote)
def __init__(self, vol, host='localhost', prelude=[]):
po = Popen(prelude + ['gluster', '--xml', '--remote-host=' + host, 'volume', 'info', vol],
stdout=PIPE, stderr=PIPE)
vix = po.stdout.read()
po.wait()
po.terminate_geterr()
vi = XET.fromstring(vix)
if vi.find('opRet').text != '0':
if prelude:
via = '(via %s) ' % prelude.join(' ')
else:
via = ' '
raise GsyncdError('getting volume info of %s%s failed with errorcode %s',
(vol, via, vi.find('opErrno').text))
self.tree = vi
self.volume = vol
self.host = host
def subcmd_voluuidget(args):
from subprocess import Popen, PIPE
import xml.etree.ElementTree as XET
ParseError = XET.ParseError if hasattr(XET, 'ParseError') else SyntaxError
cmd = ['gluster', '--xml', '--remote-host=' + args.host,
'volume', 'info', args.volname]
if args.inet6:
cmd.append("--inet6")
po = Popen(cmd, bufsize=0,
stdin=None, stdout=PIPE, stderr=PIPE,
universal_newlines=True)
vix, err = po.communicate()
if po.returncode != 0:
logging.info(lf("Volume info failed, unable to get "
"volume uuid of slavevol, "
"returning empty string",
slavevol=args.volname,
slavehost=args.host,
error=po.returncode))
return ""
vi = XET.fromstring(vix)
if vi.find('opRet').text != '0':
logging.info(lf("Unable to get volume uuid of slavevol, "
"returning empty string",
slavevol=args.volname,
slavehost=args.host,
error=vi.find('opErrstr').text))
return ""
try:
voluuid = vi.find("volInfo/volumes/volume/id").text
except (ParseError, AttributeError, ValueError) as e:
logging.info(lf("Parsing failed to volume uuid of slavevol, "
"returning empty string",
slavevol=args.volname,
slavehost=args.host,
error=e))
voluuid = ""
print(voluuid)
def __init__(self, vol, host="localhost", prelude=[]):
po = Popen(
prelude + ["gluster", "--xml", "--remote-host=" + host, "volume", "info", vol], stdout=PIPE, stderr=PIPE
)
vix = po.stdout.read()
po.wait()
po.terminate_geterr()
vi = XET.fromstring(vix)
if vi.find("opRet").text != "0":
if prelude:
via = "(via %s) " % prelude.join(" ")
else:
via = " "
raise GsyncdError(
"getting volume info of %s%s " "failed with errorcode %s", (vol, via, vi.find("opErrno").text)
)
self.tree = vi
self.volume = vol
self.host = host
def get_slave_bricks_status(host, vol):
po = Popen(['gluster', '--xml', '--remote-host=' + host,
'volume', 'status', vol, "detail"],
stdout=PIPE, stderr=PIPE)
vix = po.stdout.read()
po.wait()
po.terminate_geterr(fail_on_err=False)
if po.returncode != 0:
logging.info("Volume status command failed, unable to get "
"list of up nodes of %s, returning empty list: %s" %
(vol, po.returncode))
return []
vi = XET.fromstring(vix)
if vi.find('opRet').text != '0':
logging.info("Unable to get list of up nodes of %s, "
"returning empty list: %s" %
(vol, vi.find('opErrstr').text))
return []
up_hosts = set()
try:
for el in vi.findall('volStatus/volumes/volume/node'):
if el.find('status').text == '1':
up_hosts.add(el.find('hostname').text)
except (ParseError, AttributeError, ValueError) as e:
logging.info("Parsing failed to get list of up nodes of %s, "
"returning empty list: %s" % (vol, e))
return list(up_hosts)
def monitor(*resources):
# Mount geo-rep management volume
if gconf.meta_volume:
mgmt_mnt = os.path.join(gconf.working_dir, gconf.meta_volume)
if not os.path.exists(mgmt_mnt):
try:
os.makedirs(mgmt_mnt)
except OSError:
ex = sys.exc_info()[1]
if ex.errno == EEXIST:
pass
else:
raise
if not os.path.ismount(mgmt_mnt):
po = Popen([
"mount", "-t", "glusterfs",
"localhost:%s" % gconf.meta_volume, mgmt_mnt
],
stdout=PIPE,
stderr=PIPE)
po.wait()
po.terminate_geterr()
# Check if gsyncd restarted in pause state. If
# yes, send SIGSTOP to negative of monitor pid
# to go back to pause state.
if gconf.pause_on_start:
os.kill(-os.getpid(), signal.SIGSTOP)
"""oh yeah, actually Monitor is used as singleton, too"""
return Monitor().multiplex(*distribute(*resources))
def __init__(self, vol, host='localhost', prelude=[]):
po = Popen(prelude + ['gluster', '--xml', '--remote-host=' + host,
'volume', 'info', vol],
stdout=PIPE, stderr=PIPE)
vix = po.stdout.read()
po.wait()
po.terminate_geterr()
vi = XET.fromstring(vix)
if vi.find('opRet').text != '0':
if prelude:
via = '(via %s) ' % prelude.join(' ')
else:
via = ' '
raise GsyncdError('getting volume info of %s%s '
'failed with errorcode %s' %
(vol, via, vi.find('opErrno').text))
self.tree = vi
self.volume = vol
self.host = host