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WALinuxAgent/SOURCES/wla-skip-cgorup-monitor-293...

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From 3747dabadea2fe288e6991723e5364179b2906dd Mon Sep 17 00:00:00 2001
From: Nageswara Nandigam <84482346+nagworld9@users.noreply.github.com>
Date: Mon, 9 Oct 2023 11:14:30 -0700
Subject: [PATCH] skip cgorup monitor (#2939)
RH-Author: Ani Sinha <anisinha@redhat.com>
RH-MergeRequest: 14: skip cgorup monitor (#2939)
RH-Jira: RHEL-46713
RH-Acked-by: Vitaly Kuznetsov <vkuznets@redhat.com>
RH-Acked-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
RH-Commit: [1/1] 613c87b13204159b6b33214d0cf02ed25bcd67e7 (anisinha/centos-wa-linux-agent)
(cherry picked from commit 5bad0b4b19c907386b80ec18ad1423cdb7f3a050)
Signed-off-by: Ani Sinha <anisinha@redhat.com>
Conflicts:
azurelinuxagent/agent.py
azurelinuxagent/common/logcollector.py
tests/common/test_logcollector.py
All due to libraries being moved around in upstream.
---
azurelinuxagent/agent.py | 30 +++++++++++++++++++-------
azurelinuxagent/common/logcollector.py | 15 +------------
azurelinuxagent/ga/collect_logs.py | 10 ++++-----
tests/common/test_logcollector.py | 16 +++++++-------
tests/test_agent.py | 8 +++----
5 files changed, 40 insertions(+), 39 deletions(-)
diff --git a/azurelinuxagent/agent.py b/azurelinuxagent/agent.py
index 8c303482..0fb681e6 100644
--- a/azurelinuxagent/agent.py
+++ b/azurelinuxagent/agent.py
@@ -30,6 +30,7 @@ import sys
import threading
from azurelinuxagent.common import cgroupconfigurator, logcollector
from azurelinuxagent.common.cgroupapi import SystemdCgroupsApi
+from azurelinuxagent.common.cgroup import AGENT_LOG_COLLECTOR, CpuCgroup, MemoryCgroup
import azurelinuxagent.common.conf as conf
import azurelinuxagent.common.event as event
@@ -204,11 +205,10 @@ class Agent(object):
logger.info("Running log collector mode normal")
# Check the cgroups unit
- cpu_cgroup_path, memory_cgroup_path, log_collector_monitor = None, None, None
- if CollectLogsHandler.should_validate_cgroups():
- cgroups_api = SystemdCgroupsApi()
- cpu_cgroup_path, memory_cgroup_path = cgroups_api.get_process_cgroup_paths("self")
-
+ log_collector_monitor = None
+ cgroups_api = SystemdCgroupsApi()
+ cpu_cgroup_path, memory_cgroup_path = cgroups_api.get_process_cgroup_paths("self")
+ if CollectLogsHandler.is_enabled_monitor_cgroups_check():
cpu_slice_matches = (cgroupconfigurator.LOGCOLLECTOR_SLICE in cpu_cgroup_path)
memory_slice_matches = (cgroupconfigurator.LOGCOLLECTOR_SLICE in memory_cgroup_path)
@@ -221,10 +221,24 @@ class Agent(object):
sys.exit(logcollector.INVALID_CGROUPS_ERRCODE)
+ def initialize_cgroups_tracking(cpu_cgroup_path, memory_cgroup_path):
+ cpu_cgroup = CpuCgroup(AGENT_LOG_COLLECTOR, cpu_cgroup_path)
+ msg = "Started tracking cpu cgroup {0}".format(cpu_cgroup)
+ logger.info(msg)
+ cpu_cgroup.initialize_cpu_usage()
+ memory_cgroup = MemoryCgroup(AGENT_LOG_COLLECTOR, memory_cgroup_path)
+ msg = "Started tracking memory cgroup {0}".format(memory_cgroup)
+ logger.info(msg)
+ return [cpu_cgroup, memory_cgroup]
+
try:
- log_collector = LogCollector(is_full_mode, cpu_cgroup_path, memory_cgroup_path)
- log_collector_monitor = get_log_collector_monitor_handler(log_collector.cgroups)
- log_collector_monitor.run()
+ log_collector = LogCollector(is_full_mode)
+ # Running log collector resource(CPU, Memory) monitoring only if agent starts the log collector.
+ # If Log collector start by any other means, then it will not be monitored.
+ if CollectLogsHandler.is_enabled_monitor_cgroups_check():
+ tracked_cgroups = initialize_cgroups_tracking(cpu_cgroup_path, memory_cgroup_path)
+ log_collector_monitor = get_log_collector_monitor_handler(tracked_cgroups)
+ log_collector_monitor.run()
archive = log_collector.collect_logs_and_get_archive()
logger.info("Log collection successfully completed. Archive can be found at {0} "
"and detailed log output can be found at {1}".format(archive, OUTPUT_RESULTS_FILE_PATH))
diff --git a/azurelinuxagent/common/logcollector.py b/azurelinuxagent/common/logcollector.py
index fe62a7db..5f45a7de 100644
--- a/azurelinuxagent/common/logcollector.py
+++ b/azurelinuxagent/common/logcollector.py
@@ -26,7 +26,6 @@ import zipfile
from datetime import datetime
from heapq import heappush, heappop
-from azurelinuxagent.common.cgroup import CpuCgroup, AGENT_LOG_COLLECTOR, MemoryCgroup
from azurelinuxagent.common.conf import get_lib_dir, get_ext_log_dir, get_agent_log_file
from azurelinuxagent.common.event import initialize_event_logger_vminfo_common_parameters
from azurelinuxagent.common.future import ustr
@@ -71,14 +70,13 @@ class LogCollector(object):
_TRUNCATED_FILE_PREFIX = "truncated_"
- def __init__(self, is_full_mode=False, cpu_cgroup_path=None, memory_cgroup_path=None):
+ def __init__(self, is_full_mode=False):
self._is_full_mode = is_full_mode
self._manifest = MANIFEST_FULL if is_full_mode else MANIFEST_NORMAL
self._must_collect_files = self._expand_must_collect_files()
self._create_base_dirs()
self._set_logger()
self._initialize_telemetry()
- self.cgroups = self._set_resource_usage_cgroups(cpu_cgroup_path, memory_cgroup_path)
@staticmethod
def _mkdir(dirname):
@@ -105,17 +103,6 @@ class LogCollector(object):
_LOGGER.addHandler(_f_handler)
_LOGGER.setLevel(logging.INFO)
- @staticmethod
- def _set_resource_usage_cgroups(cpu_cgroup_path, memory_cgroup_path):
- cpu_cgroup = CpuCgroup(AGENT_LOG_COLLECTOR, cpu_cgroup_path)
- msg = "Started tracking cpu cgroup {0}".format(cpu_cgroup)
- _LOGGER.info(msg)
- cpu_cgroup.initialize_cpu_usage()
- memory_cgroup = MemoryCgroup(AGENT_LOG_COLLECTOR, memory_cgroup_path)
- msg = "Started tracking memory cgroup {0}".format(memory_cgroup)
- _LOGGER.info(msg)
- return [cpu_cgroup, memory_cgroup]
-
@staticmethod
def _initialize_telemetry():
protocol = get_protocol_util().get_protocol(init_goal_state=False)
diff --git a/azurelinuxagent/ga/collect_logs.py b/azurelinuxagent/ga/collect_logs.py
index 95c42f3a..4f42e149 100644
--- a/azurelinuxagent/ga/collect_logs.py
+++ b/azurelinuxagent/ga/collect_logs.py
@@ -83,16 +83,16 @@ class CollectLogsHandler(ThreadHandlerInterface):
return CollectLogsHandler._THREAD_NAME
@staticmethod
- def enable_cgroups_validation():
+ def enable_monitor_cgroups_check():
os.environ[CollectLogsHandler.__CGROUPS_FLAG_ENV_VARIABLE] = "1"
@staticmethod
- def disable_cgroups_validation():
+ def disable_monitor_cgroups_check():
if CollectLogsHandler.__CGROUPS_FLAG_ENV_VARIABLE in os.environ:
del os.environ[CollectLogsHandler.__CGROUPS_FLAG_ENV_VARIABLE]
@staticmethod
- def should_validate_cgroups():
+ def is_enabled_monitor_cgroups_check():
if CollectLogsHandler.__CGROUPS_FLAG_ENV_VARIABLE in os.environ:
return os.environ[CollectLogsHandler.__CGROUPS_FLAG_ENV_VARIABLE] == "1"
return False
@@ -147,7 +147,7 @@ class CollectLogsHandler(ThreadHandlerInterface):
time.sleep(_INITIAL_LOG_COLLECTION_DELAY)
try:
- CollectLogsHandler.enable_cgroups_validation()
+ CollectLogsHandler.enable_monitor_cgroups_check()
if self.protocol_util is None or self.protocol is None:
self.init_protocols()
@@ -162,7 +162,7 @@ class CollectLogsHandler(ThreadHandlerInterface):
except Exception as e:
logger.error("An error occurred in the log collection thread; will exit the thread.\n{0}", ustr(e))
finally:
- CollectLogsHandler.disable_cgroups_validation()
+ CollectLogsHandler.disable_monitor_cgroups_check()
def collect_and_send_logs(self):
if self._collect_logs():
diff --git a/tests/common/test_logcollector.py b/tests/common/test_logcollector.py
index 521e0f23..bf402cc7 100644
--- a/tests/common/test_logcollector.py
+++ b/tests/common/test_logcollector.py
@@ -212,7 +212,7 @@ diskinfo,""".format(folder_to_list, file_to_collect)
with patch("azurelinuxagent.common.logcollector.MANIFEST_NORMAL", manifest):
with patch('azurelinuxagent.common.logcollector.LogCollector._initialize_telemetry'):
- log_collector = LogCollector(cpu_cgroup_path="dummy_cpu_path", memory_cgroup_path="dummy_memory_path")
+ log_collector = LogCollector()
archive = log_collector.collect_logs_and_get_archive()
with open(self.output_results_file_path, "r") as fh:
@@ -241,7 +241,7 @@ copy,{0}
with patch("azurelinuxagent.common.logcollector.MANIFEST_FULL", manifest):
with patch('azurelinuxagent.common.logcollector.LogCollector._initialize_telemetry'):
- log_collector = LogCollector(is_full_mode=True, cpu_cgroup_path="dummy_cpu_path", memory_cgroup_path="dummy_memory_path")
+ log_collector = LogCollector(is_full_mode=True)
archive = log_collector.collect_logs_and_get_archive()
self._assert_archive_created(archive)
@@ -255,7 +255,7 @@ copy,{0}
# and combined they do not cross the archive size threshold.
with patch('azurelinuxagent.common.logcollector.LogCollector._initialize_telemetry'):
- log_collector = LogCollector(cpu_cgroup_path="dummy_cpu_path", memory_cgroup_path="dummy_memory_path")
+ log_collector = LogCollector()
archive = log_collector.collect_logs_and_get_archive()
self._assert_archive_created(archive)
@@ -277,7 +277,7 @@ copy,{0}
# Set the size limit so that some files are too large to collect in full.
with patch("azurelinuxagent.common.logcollector._FILE_SIZE_LIMIT", SMALL_FILE_SIZE):
with patch('azurelinuxagent.common.logcollector.LogCollector._initialize_telemetry'):
- log_collector = LogCollector(cpu_cgroup_path="dummy_cpu_path", memory_cgroup_path="dummy_memory_path")
+ log_collector = LogCollector()
archive = log_collector.collect_logs_and_get_archive()
self._assert_archive_created(archive)
@@ -311,7 +311,7 @@ copy,{0}
with patch("azurelinuxagent.common.logcollector._UNCOMPRESSED_ARCHIVE_SIZE_LIMIT", 10 * 1024 * 1024):
with patch("azurelinuxagent.common.logcollector._MUST_COLLECT_FILES", must_collect_files):
with patch('azurelinuxagent.common.logcollector.LogCollector._initialize_telemetry'):
- log_collector = LogCollector(cpu_cgroup_path="dummy_cpu_path", memory_cgroup_path="dummy_memory_path")
+ log_collector = LogCollector()
archive = log_collector.collect_logs_and_get_archive()
self._assert_archive_created(archive)
@@ -362,7 +362,7 @@ copy,{0}
# Ensure the archive reflects the state of files on the disk at collection time. If a file was updated, it
# needs to be updated in the archive, deleted if removed from disk, and added if not previously seen.
with patch('azurelinuxagent.common.logcollector.LogCollector._initialize_telemetry'):
- log_collector = LogCollector(cpu_cgroup_path="dummy_cpu_path", memory_cgroup_path="dummy_memory_path")
+ log_collector = LogCollector()
first_archive = log_collector.collect_logs_and_get_archive()
self._assert_archive_created(first_archive)
@@ -433,7 +433,7 @@ copy,{0}
with patch("azurelinuxagent.common.logcollector._MUST_COLLECT_FILES", must_collect_files):
with patch("azurelinuxagent.common.logcollector._FILE_SIZE_LIMIT", SMALL_FILE_SIZE):
with patch('azurelinuxagent.common.logcollector.LogCollector._initialize_telemetry'):
- log_collector = LogCollector(cpu_cgroup_path="dummy_cpu_path", memory_cgroup_path="dummy_memory_path")
+ log_collector = LogCollector()
archive = log_collector.collect_logs_and_get_archive()
self._assert_archive_created(archive)
@@ -455,7 +455,7 @@ copy,{0}
with patch("azurelinuxagent.common.logcollector._MUST_COLLECT_FILES", must_collect_files):
with patch("azurelinuxagent.common.logcollector._FILE_SIZE_LIMIT", SMALL_FILE_SIZE):
with patch('azurelinuxagent.common.logcollector.LogCollector._initialize_telemetry'):
- log_collector = LogCollector(cpu_cgroup_path="dummy_cpu_path", memory_cgroup_path="dummy_memory_path")
+ log_collector = LogCollector()
second_archive = log_collector.collect_logs_and_get_archive()
expected_files = [
diff --git a/tests/test_agent.py b/tests/test_agent.py
index f0f773f0..f5e87c87 100644
--- a/tests/test_agent.py
+++ b/tests/test_agent.py
@@ -231,7 +231,7 @@ class TestAgent(AgentTestCase):
@patch("azurelinuxagent.agent.LogCollector")
def test_calls_collect_logs_on_valid_cgroups(self, mock_log_collector):
try:
- CollectLogsHandler.enable_cgroups_validation()
+ CollectLogsHandler.enable_monitor_cgroups_check()
mock_log_collector.run = Mock()
def mock_cgroup_paths(*args, **kwargs):
@@ -246,12 +246,12 @@ class TestAgent(AgentTestCase):
mock_log_collector.assert_called_once()
finally:
- CollectLogsHandler.disable_cgroups_validation()
+ CollectLogsHandler.disable_monitor_cgroups_check()
@patch("azurelinuxagent.agent.LogCollector")
def test_doesnt_call_collect_logs_on_invalid_cgroups(self, mock_log_collector):
try:
- CollectLogsHandler.enable_cgroups_validation()
+ CollectLogsHandler.enable_monitor_cgroups_check()
mock_log_collector.run = Mock()
def mock_cgroup_paths(*args, **kwargs):
@@ -270,7 +270,7 @@ class TestAgent(AgentTestCase):
mock_exit.assert_called_once_with(logcollector.INVALID_CGROUPS_ERRCODE)
self.assertEqual(exit_error, re)
finally:
- CollectLogsHandler.disable_cgroups_validation()
+ CollectLogsHandler.disable_monitor_cgroups_check()
def test_it_should_parse_setup_firewall_properly(self):
--
2.39.3
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