def _symbolicate_minidump_with_devserver(minidump_path, resultdir,
crashserver_name):
"""
Generates a stack trace for the specified minidump by consulting devserver.
This function assumes the debug symbols have been staged on the devserver.
@param minidump_path: absolute path to minidump to by symbolicated.
@param resultdir: server job's result directory.
@param crashserver_name: Name of crashserver to attempt to symbolicate with.
@raise DevServerException upon failure, HTTP or otherwise.
"""
# First, look up what build we tested. If we can't find this, we can't
# get the right debug symbols, so we might as well give up right now.
keyvals = client_utils.read_keyval(resultdir)
if JOB_BUILD_KEY not in keyvals:
raise dev_server.DevServerException(
'Cannot determine build being tested.')
devserver = dev_server.CrashServer(crashserver_name)
with metrics.SecondsTimer(
'chromeos/autotest/crashcollect/symbolicate_duration',
fields={'crash_server': crashserver_name}):
trace_text = devserver.symbolicate_dump(minidump_path,
keyvals[JOB_BUILD_KEY])
if not trace_text:
raise dev_server.DevServerException('Unknown error!!')
with open(minidump_path + '.txt', 'w') as trace_file:
trace_file.write(trace_text)
def symbolicate_minidump_with_devserver(minidump_path, resultdir):
"""
Generates a stack trace for the specified minidump by consulting devserver.
This function assumes the debug symbols have been staged on the devserver.
@param minidump_path: absolute path to minidump to by symbolicated.
@param resultdir: server job's result directory.
@raise DevServerException upon failure, HTTP or otherwise.
"""
# First, look up what build we tested. If we can't find this, we can't
# get the right debug symbols, so we might as well give up right now.
keyvals = client_utils.read_keyval(resultdir)
if JOB_BUILD_KEY not in keyvals:
raise dev_server.DevServerException(
'Cannot determine build being tested.')
crashserver_name = dev_server.get_least_loaded_devserver(
devserver_type=dev_server.CrashServer)
if not crashserver_name:
autotest_stats.Counter(CRASH_SERVER_OVERLOAD).increment()
raise dev_server.DevServerException(
'No crash server has the capacity to symbolicate the dump.')
else:
autotest_stats.Counter(CRASH_SERVER_FOUND).increment()
devserver = dev_server.CrashServer(crashserver_name)
trace_text = devserver.symbolicate_dump(minidump_path,
keyvals[JOB_BUILD_KEY])
if not trace_text:
raise dev_server.DevServerException('Unknown error!!')
with open(minidump_path + '.txt', 'w') as trace_file:
trace_file.write(trace_text)
def testStageBuildFail(self):
"""Ensure that a failure to stage the desired build fails the RPC."""
self._setupDevserver()
self.dev_server.url().AndReturn('mox_url')
self.dev_server.get_server_name(mox.IgnoreArg()).AndReturn('mox_url')
self.dev_server.stage_artifacts(self._BUILD, ['test_suites']).AndRaise(
dev_server.DevServerException())
self.mox.ReplayAll()
self.assertRaises(error.StageControlFileFailure,
site_rpc_interface.create_suite_job,
name=self._NAME,
board=self._BOARD,
build=self._BUILD,
pool=None)
def testResolveWithFailure(self):
"""Ensure we rehash on a failed ping on a bad_host."""
self.mox.StubOutWithMock(dev_server, '_get_dev_server_list')
bad_host, good_host = 'http://bad_host:99', 'http://good_host:8080'
dev_server._get_dev_server_list().MultipleTimes().AndReturn(
[bad_host, good_host])
# Mock out bad ping failure to bad_host by raising devserver exception.
urllib2.urlopen(mox.StrContains(bad_host),
data=None).AndRaise(dev_server.DevServerException())
# Good host is good.
to_return = StringIO.StringIO('{"free_disk": 1024}')
urllib2.urlopen(mox.StrContains(good_host),
data=None).AndReturn(to_return)
self.mox.ReplayAll()
host = dev_server.ImageServer.resolve(0) # Using 0 as it'll hash to 0.
self.assertEquals(host.url(), good_host)
self.mox.VerifyAll()
def _resolve_crashserver():
"""
Attempts to find a devserver / crashserver that has capacity to
symbolicate a crashdump.
@raises DevServerException if no server with capacity could be found.
@returns Hostname of resolved server, if found.
"""
crashserver_name = dev_server.get_least_loaded_devserver(
devserver_type=dev_server.CrashServer)
if not crashserver_name:
metrics.Counter(
'chromeos/autotest/crashcollect/could_not_resolve').increment()
raise dev_server.DevServerException(
'No crash server has the capacity to symbolicate the dump.')
else:
metrics.Counter('chromeos/autotest/crashcollect/resolved').increment(
fields={'crash_server': crashserver_name})
return crashserver_name
class DevServerGetterTest(mox.MoxTestBase):
"""Unit tests for control_file_getter.DevServerGetter.
@var _HOST: fake dev server host address.
"""
_BUILD = 'fake/build'
_FILES = ['a/b/control', 'b/c/control']
_CONTENTS = 'Multi-line\nControl File Contents\n'
_403 = dev_server.DevServerException('HTTP 403 Forbidden!')
def setUp(self):
super(DevServerGetterTest, self).setUp()
self.dev_server = self.mox.CreateMock(dev_server.ImageServer)
self.getter = control_file_getter.DevServerGetter(
self._BUILD, self.dev_server)
def testListControlFiles(self):
"""Should successfully list control files from the dev server."""
self.dev_server.list_control_files(
self._BUILD, suite_name='').AndReturn(self._FILES)
self.mox.ReplayAll()
self.assertEquals(self.getter.get_control_file_list(), self._FILES)
self.assertEquals(self.getter._files, self._FILES)
def testListControlFilesFail(self):
"""Should fail to list control files from the dev server."""
self.dev_server.list_control_files(self._BUILD,
suite_name='').AndRaise(self._403)
self.mox.ReplayAll()
self.assertRaises(error.NoControlFileList,
self.getter.get_control_file_list)
def testGetControlFile(self):
"""Should successfully get a control file from the dev server."""
path = self._FILES[0]
self.dev_server.get_control_file(self._BUILD,
path).AndReturn(self._CONTENTS)
self.mox.ReplayAll()
self.assertEquals(self.getter.get_control_file_contents(path),
self._CONTENTS)
def testGetSuiteInfo(self):
"""
Should successfully list control files' path and contents from the
dev server.
"""
file_contents = {f: self._CONTENTS for f in self._FILES}
self.dev_server.list_suite_controls(
self._BUILD, suite_name='').AndReturn(file_contents)
self.mox.ReplayAll()
suite_info = self.getter.get_suite_info()
for k in suite_info.keys():
self.assertEquals(suite_info[k], file_contents[k])
self.assertEquals(sorted(self.getter._files), sorted(self._FILES))
def testListSuiteControlisFail(self):
"""
Should fail to list all control file's contents from the dev server.
"""
self.dev_server.list_suite_controls(self._BUILD,
suite_name='').AndRaise(self._403)
self.mox.ReplayAll()
self.assertRaises(error.SuiteControlFileException,
self.getter.get_suite_info, '')
def testGetControlFileFail(self):
"""Should fail to get a control file from the dev server."""
path = self._FILES[0]
self.dev_server.get_control_file(self._BUILD, path).AndRaise(self._403)
self.mox.ReplayAll()
self.assertRaises(error.ControlFileNotFound,
self.getter.get_control_file_contents, path)
def testGetControlFileByNameCached(self):
"""\
Should successfully get a cf by name from the dev server, using a cache.
"""
name = 'one'
path = "file/%s/control" % name
self.getter._files = self._FILES + [path]
self.dev_server.get_control_file(self._BUILD,
path).AndReturn(self._CONTENTS)
self.mox.ReplayAll()
self.assertEquals(self.getter.get_control_file_contents_by_name(name),
self._CONTENTS)
def testGetControlFileByName(self):
"""\
Should successfully get a control file from the dev server by name.
"""
name = 'one'
path = "file/%s/control" % name
files = self._FILES + [path]
self.dev_server.list_control_files(self._BUILD,
suite_name='').AndReturn(files)
self.dev_server.get_control_file(self._BUILD,
path).AndReturn(self._CONTENTS)
self.mox.ReplayAll()
self.assertEquals(self.getter.get_control_file_contents_by_name(name),
self._CONTENTS)
def testGetSuiteControlFileByName(self):
"""\
Should successfully get a suite control file from the devserver by name.
"""
name = 'control.bvt'
path = "file/" + name
files = self._FILES + [path]
self.dev_server.list_control_files(self._BUILD,
suite_name='').AndReturn(files)
self.dev_server.get_control_file(self._BUILD,
path).AndReturn(self._CONTENTS)
self.mox.ReplayAll()
self.assertEquals(self.getter.get_control_file_contents_by_name(name),
self._CONTENTS)
def testGetControlFileByNameFail(self):
"""Should fail to get a control file from the dev server by name."""
name = 'one'
self.dev_server.list_control_files(
self._BUILD, suite_name='').AndReturn(self._FILES)
self.mox.ReplayAll()
self.assertRaises(error.ControlFileNotFound,
self.getter.get_control_file_contents_by_name, name)
