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salt/improve-broken-events-catching-and-reporting.patch

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From 88bd54971d39b34d9728f3fe5fcb493cec3ff2fd Mon Sep 17 00:00:00 2001
From: Victor Zhestkov <vzhestkov@suse.com>
Date: Wed, 15 May 2024 09:22:11 +0200
Subject: [PATCH] Improve broken events catching and reporting
* Improve broken events catching and reporting
* Add test of catching SaltDeserializationError on reading event
* Add test for fire_ret_load
---
salt/utils/event.py | 23 +++-
tests/pytests/unit/utils/event/test_event.py | 107 +++++++++++++++++++
2 files changed, 128 insertions(+), 2 deletions(-)
diff --git a/salt/utils/event.py b/salt/utils/event.py
index e6d7b00520..ef048335ae 100644
--- a/salt/utils/event.py
+++ b/salt/utils/event.py
@@ -75,6 +75,7 @@ import salt.utils.platform
import salt.utils.process
import salt.utils.stringutils
import salt.utils.zeromq
+from salt.exceptions import SaltDeserializationError
log = logging.getLogger(__name__)
@@ -461,7 +462,13 @@ class SaltEvent:
salt.utils.stringutils.to_bytes(TAGEND)
) # split tag from data
mtag = salt.utils.stringutils.to_str(mtag)
- data = salt.payload.loads(mdata, encoding="utf-8")
+ try:
+ data = salt.payload.loads(mdata, encoding="utf-8")
+ except SaltDeserializationError:
+ log.warning(
+ "SaltDeserializationError on unpacking data, the payload could be incomplete"
+ )
+ raise
return mtag, data
def _get_match_func(self, match_type=None):
@@ -583,6 +590,9 @@ class SaltEvent:
raise
else:
return None
+ except SaltDeserializationError:
+ log.error("Unable to deserialize received event")
+ return None
except RuntimeError:
return None
@@ -889,6 +899,14 @@ class SaltEvent:
ret = load.get("return", {})
retcode = load["retcode"]
+ if not isinstance(ret, dict):
+ log.error(
+ "Event with bad payload received from '%s': %s",
+ load.get("id", "UNKNOWN"),
+ "".join(ret) if isinstance(ret, list) else ret,
+ )
+ return
+
try:
for tag, data in ret.items():
data["retcode"] = retcode
@@ -910,7 +928,8 @@ class SaltEvent:
)
except Exception as exc: # pylint: disable=broad-except
log.error(
- "Event iteration failed with exception: %s",
+ "Event from '%s' iteration failed with exception: %s",
+ load.get("id", "UNKNOWN"),
exc,
exc_info_on_loglevel=logging.DEBUG,
)
diff --git a/tests/pytests/unit/utils/event/test_event.py b/tests/pytests/unit/utils/event/test_event.py
index f4b6c15999..3eadfaf6ba 100644
--- a/tests/pytests/unit/utils/event/test_event.py
+++ b/tests/pytests/unit/utils/event/test_event.py
@@ -12,6 +12,7 @@ import salt.ext.tornado.ioloop
import salt.ext.tornado.iostream
import salt.utils.event
import salt.utils.stringutils
+from salt.exceptions import SaltDeserializationError
from salt.utils.event import SaltEvent
from tests.support.events import eventpublisher_process, eventsender_process
from tests.support.mock import patch
@@ -340,3 +341,109 @@ def test_master_pub_permissions(sock_dir):
assert bool(os.lstat(p).st_mode & stat.S_IRUSR)
assert not bool(os.lstat(p).st_mode & stat.S_IRGRP)
assert not bool(os.lstat(p).st_mode & stat.S_IROTH)
+
+
+def test_event_unpack_with_SaltDeserializationError(sock_dir):
+ with eventpublisher_process(str(sock_dir)), salt.utils.event.MasterEvent(
+ str(sock_dir), listen=True
+ ) as me, patch.object(
+ salt.utils.event.log, "warning", autospec=True
+ ) as mock_log_warning, patch.object(
+ salt.utils.event.log, "error", autospec=True
+ ) as mock_log_error:
+ me.fire_event({"data": "foo1"}, "evt1")
+ me.fire_event({"data": "foo2"}, "evt2")
+ evt2 = me.get_event(tag="")
+ with patch("salt.payload.loads", side_effect=SaltDeserializationError):
+ evt1 = me.get_event(tag="")
+ _assert_got_event(evt2, {"data": "foo2"}, expected_failure=True)
+ assert evt1 is None
+ assert (
+ mock_log_warning.mock_calls[0].args[0]
+ == "SaltDeserializationError on unpacking data, the payload could be incomplete"
+ )
+ assert (
+ mock_log_error.mock_calls[0].args[0]
+ == "Unable to deserialize received event"
+ )
+
+
+def test_event_fire_ret_load():
+ event = SaltEvent(node=None)
+ test_load = {
+ "id": "minion_id.example.org",
+ "jid": "20240212095247760376",
+ "fun": "state.highstate",
+ "retcode": 254,
+ "return": {
+ "saltutil_|-sync_states_|-sync_states_|-sync_states": {
+ "result": True,
+ },
+ "saltutil_|-sync_modules_|-sync_modules_|-sync_modules": {
+ "result": False,
+ },
+ },
+ }
+ test_fire_event_data = {
+ "result": False,
+ "retcode": 254,
+ "jid": "20240212095247760376",
+ "id": "minion_id.example.org",
+ "success": False,
+ "return": "Error: saltutil.sync_modules",
+ "fun": "state.highstate",
+ }
+ test_unhandled_exc = "Unhandled exception running state.highstate"
+ test_traceback = [
+ "Traceback (most recent call last):\n",
+ " Just an example of possible return as a list\n",
+ ]
+ with patch.object(
+ event, "fire_event", side_effect=[None, None, Exception]
+ ) as mock_fire_event, patch.object(
+ salt.utils.event.log, "error", autospec=True
+ ) as mock_log_error:
+ event.fire_ret_load(test_load)
+ assert len(mock_fire_event.mock_calls) == 2
+ assert mock_fire_event.mock_calls[0].args[0] == test_fire_event_data
+ assert mock_fire_event.mock_calls[0].args[1] == "saltutil.sync_modules"
+ assert mock_fire_event.mock_calls[1].args[0] == test_fire_event_data
+ assert (
+ mock_fire_event.mock_calls[1].args[1]
+ == "salt/job/20240212095247760376/sub/minion_id.example.org/error/state.highstate"
+ )
+ assert not mock_log_error.mock_calls
+
+ mock_log_error.reset_mock()
+
+ event.fire_ret_load(test_load)
+ assert (
+ mock_log_error.mock_calls[0].args[0]
+ == "Event from '%s' iteration failed with exception: %s"
+ )
+ assert mock_log_error.mock_calls[0].args[1] == "minion_id.example.org"
+
+ mock_log_error.reset_mock()
+ test_load["return"] = test_unhandled_exc
+
+ event.fire_ret_load(test_load)
+ assert (
+ mock_log_error.mock_calls[0].args[0]
+ == "Event with bad payload received from '%s': %s"
+ )
+ assert mock_log_error.mock_calls[0].args[1] == "minion_id.example.org"
+ assert (
+ mock_log_error.mock_calls[0].args[2]
+ == "Unhandled exception running state.highstate"
+ )
+
+ mock_log_error.reset_mock()
+ test_load["return"] = test_traceback
+
+ event.fire_ret_load(test_load)
+ assert (
+ mock_log_error.mock_calls[0].args[0]
+ == "Event with bad payload received from '%s': %s"
+ )
+ assert mock_log_error.mock_calls[0].args[1] == "minion_id.example.org"
+ assert mock_log_error.mock_calls[0].args[2] == "".join(test_traceback)
--
2.45.0
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