def collect_messages(host):
"""Collects the 'new' contents of /var/log/messages.
If host.VAR_LOG_MESSAGE_COPY_PATH is on the remote machine, collects
the contents of /var/log/messages excluding whatever initial contents
are already present in host.VAR_LOG_MESSAGE_COPY_PATH. If it is not
present, simply collects the entire contents of /var/log/messages.
:param host: The RemoteHost to collect from
"""
crashinfo_dir = get_crashinfo_dir(host)
try:
# paths to the messages files
messages = os.path.join(crashinfo_dir, "messages")
messages_raw = os.path.join(crashinfo_dir, "messages.raw")
messages_at_start = os.path.join(crashinfo_dir, "messages.at_start")
# grab the files from the remote host
collect_log_file(host, host.VAR_LOG_MESSAGES_COPY_PATH,
messages_at_start)
collect_log_file(host, "/var/log/messages", messages_raw)
# figure out how much of messages.raw to skip
if os.path.exists(messages_at_start):
# if the first lines of the messages at start should match the
# first lines of the current messages; if they don't then messages
# has been erase or rotated and we just grab all of it
first_line_at_start = utils.read_one_line(messages_at_start)
first_line_now = utils.read_one_line(messages_raw)
if first_line_at_start != first_line_now:
size_at_start = 0
else:
size_at_start = os.path.getsize(messages_at_start)
else:
size_at_start = 0
raw_messages_file = open(messages_raw)
messages_file = gzip.GzipFile(messages + ".gz", "w")
try:
raw_messages_file.seek(size_at_start)
shutil.copyfileobj(raw_messages_file, messages_file)
raw_messages_file.close()
finally:
messages_file.close()
# get rid of the "raw" versions of messages
os.remove(messages_raw)
if os.path.exists(messages_at_start):
os.remove(messages_at_start)
except Exception, e:
logging.warning("Error while collecting /var/log/messages: %s", e)
def collect_messages(host):
"""Collects the 'new' contents of /var/log/messages.
If host.VAR_LOG_MESSAGE_COPY_PATH is on the remote machine, collects
the contents of /var/log/messages excluding whatever initial contents
are already present in host.VAR_LOG_MESSAGE_COPY_PATH. If it is not
present, simply collects the entire contents of /var/log/messages.
:param host: The RemoteHost to collect from
"""
crashinfo_dir = get_crashinfo_dir(host)
try:
# paths to the messages files
messages = os.path.join(crashinfo_dir, "messages")
messages_raw = os.path.join(crashinfo_dir, "messages.raw")
messages_at_start = os.path.join(crashinfo_dir, "messages.at_start")
# grab the files from the remote host
collect_log_file(host, host.VAR_LOG_MESSAGES_COPY_PATH,
messages_at_start)
collect_log_file(host, "/var/log/messages", messages_raw)
# figure out how much of messages.raw to skip
if os.path.exists(messages_at_start):
# if the first lines of the messages at start should match the
# first lines of the current messages; if they don't then messages
# has been erase or rotated and we just grab all of it
first_line_at_start = utils.read_one_line(messages_at_start)
first_line_now = utils.read_one_line(messages_raw)
if first_line_at_start != first_line_now:
size_at_start = 0
else:
size_at_start = os.path.getsize(messages_at_start)
else:
size_at_start = 0
raw_messages_file = open(messages_raw)
messages_file = gzip.GzipFile(messages + ".gz", "w")
try:
raw_messages_file.seek(size_at_start)
shutil.copyfileobj(raw_messages_file, messages_file)
raw_messages_file.close()
finally:
messages_file.close()
# get rid of the "raw" versions of messages
os.remove(messages_raw)
if os.path.exists(messages_at_start):
os.remove(messages_at_start)
except Exception as e:
logging.warning("Error while collecting /var/log/messages: %s", e)