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87bc6c8acd
pacemaker/011-fencing-reasons.patch
Ken Gaillot 87bc6c8acd Backport selected patches from upstream main branch 
- Detect an unresponsive subdaemon
- Handle certain probe failures as stopped instead of failed
- Update pcmk_delay_base option meta-data
- Avoid crash when using clone notifications
- Retry Corosync shutdown tracking if first attempt fails
- Improve display of failed actions
- Resolves: rhbz1707851
- Resolves: rhbz2039982
- Resolves: rhbz2032032
- Resolves: rhbz2040443
- Resolves: rhbz2042367
- Resolves: rhbz2042546
2022-01-24 10:24:48 -06:00

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From 6db8e3adef0441953ec18dd0339c0a67c5c26bdf Mon Sep 17 00:00:00 2001
From: Ken Gaillot <kgaillot@redhat.com>
Date: Tue, 14 Dec 2021 16:25:21 -0600
Subject: [PATCH 01/17] Doc: Pacemaker Development: update for recent function
renames
---
doc/sphinx/Pacemaker_Development/components.rst | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)
diff --git a/doc/sphinx/Pacemaker_Development/components.rst b/doc/sphinx/Pacemaker_Development/components.rst
index a51220cac9..68158484ce 100644
--- a/doc/sphinx/Pacemaker_Development/components.rst
+++ b/doc/sphinx/Pacemaker_Development/components.rst
@@ -106,7 +106,7 @@ or messaging layer callback, which calls:
the number of active peers), and if this is the last expected reply,
calls
- * ``call_remote_stonith()``, which calculates the timeout and sends
+ * ``request_peer_fencing()``, which calculates the timeout and sends
``STONITH_OP_FENCE`` request(s) to carry out the fencing. If the target
node has a fencing "topology" (which allows specifications such as
"this node can be fenced either with device A, or devices B and C in
@@ -156,7 +156,7 @@ returns, and calls
* done callback (``st_child_done()``), which calls ``schedule_stonith_command()``
for a new device if there are further required actions to execute or if the
original action failed, then builds and sends an XML reply to the original
- fencer (via ``stonith_send_async_reply()``), then checks whether any
+ fencer (via ``send_async_reply()``), then checks whether any
pending actions are the same as the one just executed and merges them if so.
Fencing replies
@@ -169,18 +169,18 @@ messaging layer callback, which calls:
* ``handle_reply()``, which calls
- * ``process_remote_stonith_exec()``, which calls either
- ``call_remote_stonith()`` (to retry a failed operation, or try the next
- device in a topology is appropriate, which issues a new
+ * ``fenced_process_fencing_reply()``, which calls either
+ ``request_peer_fencing()`` (to retry a failed operation, or try the next
+ device in a topology is appropriate, which issues a new
``STONITH_OP_FENCE`` request, proceeding as before) or
- ``remote_op_done()`` (if the operation is definitively failed or
+ ``finalize_op()`` (if the operation is definitively failed or
successful).
- * remote_op_done() broadcasts the result to all peers.
+ * ``finalize_op()`` broadcasts the result to all peers.
Finally, all peers receive the broadcast result and call
-* ``remote_op_done()``, which sends the result to all local clients.
+* ``finalize_op()``, which sends the result to all local clients.
.. index::
--
2.27.0
From 47db9e5fb410b1e911710727d646eb7180a70c90 Mon Sep 17 00:00:00 2001
From: Ken Gaillot <kgaillot@redhat.com>
Date: Fri, 12 Nov 2021 09:58:16 -0600
Subject: [PATCH 02/17] Refactor: fencing: add full result to fence action
callback data
stonith_callback_data_t previously only contained the legacy return code for
the action. Use its new opaque member to store the full result, along with
accessors (available only internally for now).
---
include/crm/fencing/internal.h | 3 ++
lib/fencing/st_client.c | 99 ++++++++++++++++++++++++++--------
2 files changed, 81 insertions(+), 21 deletions(-)
diff --git a/include/crm/fencing/internal.h b/include/crm/fencing/internal.h
index f0d294a0b3..eff689e59b 100644
--- a/include/crm/fencing/internal.h
+++ b/include/crm/fencing/internal.h
@@ -187,6 +187,9 @@ bool stonith__event_state_eq(stonith_history_t *history, void *user_data);
bool stonith__event_state_neq(stonith_history_t *history, void *user_data);
int stonith__legacy2status(int rc);
+int stonith__exit_status(stonith_callback_data_t *data);
+int stonith__execution_status(stonith_callback_data_t *data);
+const char *stonith__exit_reason(stonith_callback_data_t *data);
/*!
* \internal
diff --git a/lib/fencing/st_client.c b/lib/fencing/st_client.c
index 2ca094566b..9d93ffd481 100644
--- a/lib/fencing/st_client.c
+++ b/lib/fencing/st_client.c
@@ -854,20 +854,23 @@ stonith_api_del_callback(stonith_t * stonith, int call_id, bool all_callbacks)
* \param[in] st Fencer API connection
* \param[in] call_id If positive, call ID of completed fence action, otherwise
* legacy return code for early action failure
- * \param[in] rc Legacy return code for action result
+ * \param[in] result Full result for action
* \param[in] userdata User data to pass to callback
* \param[in] callback Fence action callback to invoke
*/
static void
-invoke_fence_action_callback(stonith_t *st, int call_id, int rc, void *userdata,
+invoke_fence_action_callback(stonith_t *st, int call_id,
+ pcmk__action_result_t *result,
+ void *userdata,
void (*callback) (stonith_t *st,
stonith_callback_data_t *data))
{
stonith_callback_data_t data = { 0, };
data.call_id = call_id;
- data.rc = rc;
+ data.rc = pcmk_rc2legacy(stonith__result2rc(result));
data.userdata = userdata;
+ data.opaque = (void *) result;
callback(st, &data);
}
@@ -888,7 +891,7 @@ invoke_registered_callbacks(stonith_t *stonith, xmlNode *msg, int call_id)
{
stonith_private_t *private = NULL;
stonith_callback_client_t *cb_info = NULL;
- int rc = pcmk_ok;
+ pcmk__action_result_t result = PCMK__UNKNOWN_RESULT;
CRM_CHECK(stonith != NULL, return);
CRM_CHECK(stonith->st_private != NULL, return);
@@ -897,20 +900,17 @@ invoke_registered_callbacks(stonith_t *stonith, xmlNode *msg, int call_id)
if (msg == NULL) {
// Fencer didn't reply in time
- rc = -ETIME;
+ pcmk__set_result(&result, CRM_EX_ERROR, PCMK_EXEC_TIMEOUT,
+ "Timeout waiting for reply from fencer");
CRM_LOG_ASSERT(call_id > 0);
} else {
// We have the fencer reply
-
- if (crm_element_value_int(msg, F_STONITH_RC, &rc) != 0) {
- rc = -pcmk_err_generic;
- }
-
if ((crm_element_value_int(msg, F_STONITH_CALLID, &call_id) != 0)
|| (call_id <= 0)) {
crm_log_xml_warn(msg, "Bad fencer reply");
}
+ stonith__xe_get_result(msg, &result);
}
if (call_id > 0) {
@@ -919,27 +919,29 @@ invoke_registered_callbacks(stonith_t *stonith, xmlNode *msg, int call_id)
}
if ((cb_info != NULL) && (cb_info->callback != NULL)
- && (rc == pcmk_ok || !(cb_info->only_success))) {
+ && (pcmk__result_ok(&result) || !(cb_info->only_success))) {
crm_trace("Invoking callback %s for call %d",
crm_str(cb_info->id), call_id);
- invoke_fence_action_callback(stonith, call_id, rc, cb_info->user_data,
- cb_info->callback);
+ invoke_fence_action_callback(stonith, call_id, &result,
+ cb_info->user_data, cb_info->callback);
- } else if ((private->op_callback == NULL) && (rc != pcmk_ok)) {
- crm_warn("Fencing action without registered callback failed: %s",
- pcmk_strerror(rc));
+ } else if ((private->op_callback == NULL) && !pcmk__result_ok(&result)) {
+ crm_warn("Fencing action without registered callback failed: %d (%s)",
+ result.exit_status,
+ pcmk_exec_status_str(result.execution_status));
crm_log_xml_debug(msg, "Failed fence update");
}
if (private->op_callback != NULL) {
crm_trace("Invoking global callback for call %d", call_id);
- invoke_fence_action_callback(stonith, call_id, rc, NULL,
+ invoke_fence_action_callback(stonith, call_id, &result, NULL,
private->op_callback);
}
if (cb_info != NULL) {
stonith_api_del_callback(stonith, call_id, FALSE);
}
+ pcmk__reset_result(&result);
}
static gboolean
@@ -1252,14 +1254,18 @@ stonith_api_add_callback(stonith_t * stonith, int call_id, int timeout, int opti
CRM_CHECK(stonith->st_private != NULL, return -EINVAL);
private = stonith->st_private;
- if (call_id == 0) {
+ if (call_id == 0) { // Add global callback
private->op_callback = callback;
- } else if (call_id < 0) {
+ } else if (call_id < 0) { // Call failed immediately, so call callback now
if (!(options & st_opt_report_only_success)) {
+ pcmk__action_result_t result = PCMK__UNKNOWN_RESULT;
+
crm_trace("Call failed, calling %s: %s", callback_name, pcmk_strerror(call_id));
- invoke_fence_action_callback(stonith, call_id, call_id, user_data,
- callback);
+ pcmk__set_result(&result, CRM_EX_ERROR,
+ stonith__legacy2status(call_id), NULL);
+ invoke_fence_action_callback(stonith, call_id, &result,
+ user_data, callback);
} else {
crm_warn("Fencer call failed: %s", pcmk_strerror(call_id));
}
@@ -2293,6 +2299,57 @@ stonith__device_parameter_flags(uint32_t *device_flags, const char *device_name,
freeXpathObject(xpath);
}
+/*!
+ * \internal
+ * \brief Return the exit status from an async action callback
+ *
+ * \param[in] data Callback data
+ *
+ * \return Exit status from callback data
+ */
+int
+stonith__exit_status(stonith_callback_data_t *data)
+{
+ if ((data == NULL) || (data->opaque == NULL)) {
+ return CRM_EX_ERROR;
+ }
+ return ((pcmk__action_result_t *) data->opaque)->exit_status;
+}
+
+/*!
+ * \internal
+ * \brief Return the execution status from an async action callback
+ *
+ * \param[in] data Callback data
+ *
+ * \return Execution status from callback data
+ */
+int
+stonith__execution_status(stonith_callback_data_t *data)
+{
+ if ((data == NULL) || (data->opaque == NULL)) {
+ return PCMK_EXEC_UNKNOWN;
+ }
+ return ((pcmk__action_result_t *) data->opaque)->execution_status;
+}
+
+/*!
+ * \internal
+ * \brief Return the exit reason from an async action callback
+ *
+ * \param[in] data Callback data
+ *
+ * \return Exit reason from callback data
+ */
+const char *
+stonith__exit_reason(stonith_callback_data_t *data)
+{
+ if ((data == NULL) || (data->opaque == NULL)) {
+ return NULL;
+ }
+ return ((pcmk__action_result_t *) data->opaque)->exit_reason;
+}
+
// Deprecated functions kept only for backward API compatibility
// LCOV_EXCL_START
--
2.27.0
From 1e076370ef4ac7993b5ff21ed1cdfb3c4a494cf0 Mon Sep 17 00:00:00 2001
From: Ken Gaillot <kgaillot@redhat.com>
Date: Tue, 9 Nov 2021 16:16:03 -0600
Subject: [PATCH 03/17] Log: controller: improve fencing result messages
Now that fence callbacks get the full result, we can log a better message.
Also check for error conditions better, improve message wording, and ensure
only a single message is logged per result.
---
daemons/controld/controld_fencing.c | 83 +++++++++++++++++++----------
1 file changed, 56 insertions(+), 27 deletions(-)
diff --git a/daemons/controld/controld_fencing.c b/daemons/controld/controld_fencing.c
index f5a252c813..f8d2fc13f4 100644
--- a/daemons/controld/controld_fencing.c
+++ b/daemons/controld/controld_fencing.c
@@ -714,45 +714,64 @@ tengine_stonith_callback(stonith_t *stonith, stonith_callback_data_t *data)
int stonith_id = -1;
int transition_id = -1;
crm_action_t *action = NULL;
- int call_id = data->call_id;
- int rc = data->rc;
- char *userdata = data->userdata;
-
- CRM_CHECK(userdata != NULL, return);
- crm_notice("Stonith operation %d/%s: %s (%d)", call_id, (char *)userdata,
- pcmk_strerror(rc), rc);
+ const char *target = NULL;
- if (AM_I_DC == FALSE) {
+ if ((data == NULL) || (data->userdata == NULL)) {
+ crm_err("Ignoring fence operation %d result: "
+ "No transition key given (bug?)",
+ ((data == NULL)? -1 : data->call_id));
return;
}
- /* crm_info("call=%d, optype=%d, node_name=%s, result=%d, node_list=%s, action=%s", */
- /* op->call_id, op->optype, op->node_name, op->op_result, */
- /* (char *)op->node_list, op->private_data); */
+ if (!AM_I_DC) {
+ const char *reason = stonith__exit_reason(data);
+
+ if (reason == NULL) {
+ reason = pcmk_exec_status_str(stonith__execution_status(data));
+ }
+ crm_notice("Result of fence operation %d: %d (%s) " CRM_XS " key=%s",
+ data->call_id, stonith__exit_status(data), reason,
+ (const char *) data->userdata);
+ return;
+ }
- /* filter out old STONITH actions */
- CRM_CHECK(decode_transition_key(userdata, &uuid, &transition_id, &stonith_id, NULL),
+ CRM_CHECK(decode_transition_key(data->userdata, &uuid, &transition_id,
+ &stonith_id, NULL),
goto bail);
- if (transition_graph->complete || stonith_id < 0 || !pcmk__str_eq(uuid, te_uuid, pcmk__str_casei)
- || transition_graph->id != transition_id) {
- crm_info("Ignoring STONITH action initiated outside of the current transition");
+ if (transition_graph->complete || (stonith_id < 0)
+ || !pcmk__str_eq(uuid, te_uuid, pcmk__str_none)
+ || (transition_graph->id != transition_id)) {
+ crm_info("Ignoring fence operation %d result: "
+ "Not from current transition " CRM_XS
+ " complete=%s action=%d uuid=%s (vs %s) transition=%d (vs %d)",
+ data->call_id, pcmk__btoa(transition_graph->complete),
+ stonith_id, uuid, te_uuid, transition_id, transition_graph->id);
goto bail;
}
action = controld_get_action(stonith_id);
if (action == NULL) {
- crm_err("Stonith action not matched");
+ crm_err("Ignoring fence operation %d result: "
+ "Action %d not found in transition graph (bug?) "
+ CRM_XS " uuid=%s transition=%d",
+ data->call_id, stonith_id, uuid, transition_id);
+ goto bail;
+ }
+
+ target = crm_element_value(action->xml, XML_LRM_ATTR_TARGET);
+ if (target == NULL) {
+ crm_err("Ignoring fence operation %d result: No target given (bug?)",
+ data->call_id);
goto bail;
}
stop_te_timer(action->timer);
- if (rc == pcmk_ok) {
- const char *target = crm_element_value(action->xml, XML_LRM_ATTR_TARGET);
+ if (stonith__exit_status(data) == CRM_EX_OK) {
const char *uuid = crm_element_value(action->xml, XML_LRM_ATTR_TARGET_UUID);
const char *op = crm_meta_value(action->params, "stonith_action");
- crm_info("Stonith operation %d for %s passed", call_id, target);
+ crm_notice("Fence operation %d for %s passed", data->call_id, target);
if (!(pcmk_is_set(action->flags, pcmk__graph_action_confirmed))) {
te_action_confirmed(action, NULL);
if (pcmk__str_eq("on", op, pcmk__str_casei)) {
@@ -791,20 +810,30 @@ tengine_stonith_callback(stonith_t *stonith, stonith_callback_data_t *data)
st_fail_count_reset(target);
} else {
- const char *target = crm_element_value(action->xml, XML_LRM_ATTR_TARGET);
enum transition_action abort_action = tg_restart;
+ int status = stonith__execution_status(data);
+ const char *reason = stonith__exit_reason(data);
+ if (reason == NULL) {
+ if (status == PCMK_EXEC_DONE) {
+ reason = "Agent returned error";
+ } else {
+ reason = pcmk_exec_status_str(status);
+ }
+ }
crm__set_graph_action_flags(action, pcmk__graph_action_failed);
- crm_notice("Stonith operation %d for %s failed (%s): aborting transition.",
- call_id, target, pcmk_strerror(rc));
/* If no fence devices were available, there's no use in immediately
* checking again, so don't start a new transition in that case.
*/
- if (rc == -ENODEV) {
- crm_warn("No devices found in cluster to fence %s, giving up",
- target);
+ if (status == PCMK_EXEC_NO_FENCE_DEVICE) {
+ crm_warn("Fence operation %d for %s failed: %s "
+ "(aborting transition and giving up for now)",
+ data->call_id, target, reason);
abort_action = tg_stop;
+ } else {
+ crm_notice("Fence operation %d for %s failed: %s "
+ "(aborting transition)", data->call_id, target, reason);
}
/* Increment the fail count now, so abort_for_stonith_failure() can
@@ -818,7 +847,7 @@ tengine_stonith_callback(stonith_t *stonith, stonith_callback_data_t *data)
trigger_graph();
bail:
- free(userdata);
+ free(data->userdata);
free(uuid);
return;
}
--
2.27.0
From 25547e3b7e6eb23efad1c359388d6e8d0df62363 Mon Sep 17 00:00:00 2001
From: Ken Gaillot <kgaillot@redhat.com>
Date: Mon, 22 Nov 2021 12:37:16 -0600
Subject: [PATCH 04/17] Refactor: executor: drop action_get_uniform_rc()
function
action_get_uniform_rc() called stonith2uniform_rc() or services_result2ocf() as
appropriate to the action standard. However, it was called only from a place
that did not process stonith actions, so that place can just call
services_result2ocf() directly.
This will simplify planned changes.
---
daemons/execd/execd_commands.c | 24 ++++++------------------
1 file changed, 6 insertions(+), 18 deletions(-)
diff --git a/daemons/execd/execd_commands.c b/daemons/execd/execd_commands.c
index 5bb2aab692..5e123e322e 100644
--- a/daemons/execd/execd_commands.c
+++ b/daemons/execd/execd_commands.c
@@ -780,23 +780,6 @@ stonith2uniform_rc(const char *action, int rc)
return rc;
}
-static int
-action_get_uniform_rc(svc_action_t *action)
-{
- lrmd_cmd_t *cmd = action->cb_data;
-
- if (pcmk__str_eq(action->standard, PCMK_RESOURCE_CLASS_STONITH,
- pcmk__str_casei)) {
- return stonith2uniform_rc(cmd->action, action->rc);
- } else {
- enum ocf_exitcode code = services_result2ocf(action->standard,
- cmd->action, action->rc);
-
- // Cast variable instead of function return to keep compilers happy
- return (int) code;
- }
-}
-
struct notify_new_client_data {
xmlNode *notify;
pcmk__client_t *new_client;
@@ -848,6 +831,7 @@ action_complete(svc_action_t * action)
{
lrmd_rsc_t *rsc;
lrmd_cmd_t *cmd = action->cb_data;
+ enum ocf_exitcode code;
#ifdef PCMK__TIME_USE_CGT
const char *rclass = NULL;
@@ -867,8 +851,12 @@ action_complete(svc_action_t * action)
#endif
cmd->last_pid = action->pid;
- pcmk__set_result(&(cmd->result), action_get_uniform_rc(action),
+
+ // Cast variable instead of function return to keep compilers happy
+ code = services_result2ocf(action->standard, cmd->action, action->rc);
+ pcmk__set_result(&(cmd->result), (int) code,
action->status, services__exit_reason(action));
+
rsc = cmd->rsc_id ? g_hash_table_lookup(rsc_list, cmd->rsc_id) : NULL;
#ifdef PCMK__TIME_USE_CGT
--
2.27.0
From b5e31ba2539da4e94c124c3f0c8c72f7039f9a7a Mon Sep 17 00:00:00 2001
From: Ken Gaillot <kgaillot@redhat.com>
Date: Mon, 22 Nov 2021 12:39:30 -0600
Subject: [PATCH 05/17] Feature: executor: use full result from fencer for
fence actions
Now that fence callbacks get the full result, we can improve the executor
command result for fence actions. stonith_action_complete() now takes a
full result, allowing the executor to use that directly rather than map a
legacy return code.
---
daemons/execd/execd_commands.c | 140 +++++++++++++++++++--------------
1 file changed, 80 insertions(+), 60 deletions(-)
diff --git a/daemons/execd/execd_commands.c b/daemons/execd/execd_commands.c
index 5e123e322e..e722994012 100644
--- a/daemons/execd/execd_commands.c
+++ b/daemons/execd/execd_commands.c
@@ -8,6 +8,7 @@
*/
#include <crm_internal.h>
+#include <crm/fencing/internal.h>
#include <glib.h>
@@ -748,38 +749,6 @@ cmd_finalize(lrmd_cmd_t * cmd, lrmd_rsc_t * rsc)
}
}
-static int
-stonith2uniform_rc(const char *action, int rc)
-{
- switch (rc) {
- case pcmk_ok:
- rc = PCMK_OCF_OK;
- break;
-
- case -ENODEV:
- /* This should be possible only for probes in practice, but
- * interpret for all actions to be safe.
- */
- if (pcmk__str_eq(action, "monitor", pcmk__str_casei)) {
- rc = PCMK_OCF_NOT_RUNNING;
- } else if (pcmk__str_eq(action, "stop", pcmk__str_casei)) {
- rc = PCMK_OCF_OK;
- } else {
- rc = PCMK_OCF_NOT_INSTALLED;
- }
- break;
-
- case -EOPNOTSUPP:
- rc = PCMK_OCF_UNIMPLEMENT_FEATURE;
- break;
-
- default:
- rc = PCMK_OCF_UNKNOWN_ERROR;
- break;
- }
- return rc;
-}
-
struct notify_new_client_data {
xmlNode *notify;
pcmk__client_t *new_client;
@@ -988,46 +957,84 @@ action_complete(svc_action_t * action)
cmd_finalize(cmd, rsc);
}
+/*!
+ * \internal
+ * \brief Process the result of a fence device action (start, stop, or monitor)
+ *
+ * \param[in] cmd Fence device action that completed
+ * \param[in] exit_status Fencer API exit status for action
+ * \param[in] execution_status Fencer API execution status for action
+ * \param[in] exit_reason Human-friendly detail, if action failed
+ */
static void
-stonith_action_complete(lrmd_cmd_t * cmd, int rc)
+stonith_action_complete(lrmd_cmd_t *cmd, int exit_status,
+ enum pcmk_exec_status execution_status,
+ const char *exit_reason)
{
// This can be NULL if resource was removed before command completed
lrmd_rsc_t *rsc = g_hash_table_lookup(rsc_list, cmd->rsc_id);
- cmd->result.exit_status = stonith2uniform_rc(cmd->action, rc);
+ // Simplify fencer exit status to uniform exit status
+ if (exit_status != CRM_EX_OK) {
+ exit_status = PCMK_OCF_UNKNOWN_ERROR;
+ }
- /* This function may be called with status already set to cancelled, if a
- * pending action was aborted. Otherwise, we need to determine status from
- * the fencer return code.
- */
- if (cmd->result.execution_status != PCMK_EXEC_CANCELLED) {
- cmd->result.execution_status = stonith__legacy2status(rc);
+ if (cmd->result.execution_status == PCMK_EXEC_CANCELLED) {
+ /* An in-flight fence action was cancelled. The execution status is
+ * already correct, so don't overwrite it.
+ */
+ execution_status = PCMK_EXEC_CANCELLED;
- // Simplify status codes from fencer
- switch (cmd->result.execution_status) {
+ } else {
+ /* Some execution status codes have specific meanings for the fencer
+ * that executor clients may not expect, so map them to a simple error
+ * status.
+ */
+ switch (execution_status) {
case PCMK_EXEC_NOT_CONNECTED:
case PCMK_EXEC_INVALID:
- case PCMK_EXEC_NO_FENCE_DEVICE:
case PCMK_EXEC_NO_SECRETS:
- cmd->result.execution_status = PCMK_EXEC_ERROR;
+ execution_status = PCMK_EXEC_ERROR;
break;
- default:
+
+ case PCMK_EXEC_NO_FENCE_DEVICE:
+ /* This should be possible only for probes in practice, but
+ * interpret for all actions to be safe.
+ */
+ if (pcmk__str_eq(cmd->action, CRMD_ACTION_STATUS,
+ pcmk__str_none)) {
+ exit_status = PCMK_OCF_NOT_RUNNING;
+
+ } else if (pcmk__str_eq(cmd->action, CRMD_ACTION_STOP,
+ pcmk__str_none)) {
+ exit_status = PCMK_OCF_OK;
+
+ } else {
+ exit_status = PCMK_OCF_NOT_INSTALLED;
+ }
+ execution_status = PCMK_EXEC_ERROR;
break;
- }
- // Certain successful actions change the known state of the resource
- if ((rsc != NULL) && pcmk__result_ok(&(cmd->result))) {
- if (pcmk__str_eq(cmd->action, "start", pcmk__str_casei)) {
- rsc->st_probe_rc = pcmk_ok; // maps to PCMK_OCF_OK
- } else if (pcmk__str_eq(cmd->action, "stop", pcmk__str_casei)) {
- rsc->st_probe_rc = -ENODEV; // maps to PCMK_OCF_NOT_RUNNING
- }
+ case PCMK_EXEC_NOT_SUPPORTED:
+ exit_status = PCMK_OCF_UNIMPLEMENT_FEATURE;
+ break;
+
+ default:
+ break;
}
}
- // Give the user more detail than an OCF code
- if (rc != -pcmk_err_generic) {
- cmd->result.exit_reason = strdup(pcmk_strerror(rc));
+ pcmk__set_result(&cmd->result, exit_status, execution_status, exit_reason);
+
+ // Certain successful actions change the known state of the resource
+ if ((rsc != NULL) && pcmk__result_ok(&(cmd->result))) {
+
+ if (pcmk__str_eq(cmd->action, "start", pcmk__str_casei)) {
+ rsc->st_probe_rc = pcmk_ok; // maps to PCMK_OCF_OK
+
+ } else if (pcmk__str_eq(cmd->action, "stop", pcmk__str_casei)) {
+ rsc->st_probe_rc = -ENODEV; // maps to PCMK_OCF_NOT_RUNNING
+ }
}
/* The recurring timer should not be running at this point in any case, but
@@ -1050,7 +1057,15 @@ stonith_action_complete(lrmd_cmd_t * cmd, int rc)
static void
lrmd_stonith_callback(stonith_t * stonith, stonith_callback_data_t * data)
{
- stonith_action_complete(data->userdata, data->rc);
+ if ((data == NULL) || (data->userdata == NULL)) {
+ crm_err("Ignoring fence action result: "
+ "Invalid callback arguments (bug?)");
+ } else {
+ stonith_action_complete((lrmd_cmd_t *) data->userdata,
+ stonith__exit_status(data),
+ stonith__execution_status(data),
+ stonith__exit_reason(data));
+ }
}
void
@@ -1097,7 +1112,9 @@ stonith_connection_failed(void)
crm_err("Connection to fencer failed, finalizing %d pending operations",
g_list_length(cmd_list));
for (cmd_iter = cmd_list; cmd_iter; cmd_iter = cmd_iter->next) {
- stonith_action_complete(cmd_iter->data, -ENOTCONN);
+ stonith_action_complete((lrmd_cmd_t *) cmd_iter->data,
+ CRM_EX_ERROR, PCMK_EXEC_NOT_CONNECTED,
+ "Lost connection to fencer");
}
g_list_free(cmd_list);
}
@@ -1210,7 +1227,7 @@ lrmd_rsc_execute_stonith(lrmd_rsc_t * rsc, lrmd_cmd_t * cmd)
} else if (pcmk__str_eq(cmd->action, "start", pcmk__str_casei)) {
rc = execd_stonith_start(stonith_api, rsc, cmd);
- if (rc == 0) {
+ if (rc == pcmk_ok) {
do_monitor = TRUE;
}
@@ -1233,7 +1250,10 @@ lrmd_rsc_execute_stonith(lrmd_rsc_t * rsc, lrmd_cmd_t * cmd)
}
}
- stonith_action_complete(cmd, rc);
+ stonith_action_complete(cmd,
+ ((rc == pcmk_ok)? CRM_EX_OK : CRM_EX_ERROR),
+ stonith__legacy2status(rc),
+ rc == -pcmk_err_generic? NULL : pcmk_strerror(rc));
}
static int
--
2.27.0
From 0cdc8506c2383cf05c2f62ab1ac9438958daf210 Mon Sep 17 00:00:00 2001
From: Ken Gaillot <kgaillot@redhat.com>
Date: Mon, 22 Nov 2021 16:15:05 -0600
Subject: [PATCH 06/17] Fix: executor,scheduler: treat "no secrets" fence
results as a hard error
Previously, the executor mapped the fencer's PCMK_EXEC_NO_SECRETS status to
PCMK_EXEC_ERROR to keep handling of that situation the same as before the new
code was added.
However, the earlier handling was less than ideal -- a resource action that
failed due to missing secrets would be retried on the same node, and almost
certainly fail again for the same reason. Now, the executor passes along
PCMK_EXEC_NO_SECRETS to clients; the controller will record the result in the
CIB status, and the scheduler will treat it as a hard error (i.e. not retrying
on the same node).
Backward compatibility isn't a problem because the scheduler treats unknown
status codes the same as PCMK_EXEC_ERROR, so an older DC will continue to
handle it as before. The CRM feature set has been bumped so the handling can't
flip back and forth in a mixed-version cluster.
---
daemons/execd/execd_commands.c | 1 -
include/crm/crm.h | 4 ++--
lib/pengine/unpack.c | 3 ---
3 files changed, 2 insertions(+), 6 deletions(-)
diff --git a/daemons/execd/execd_commands.c b/daemons/execd/execd_commands.c
index e722994012..4ced6d1d5c 100644
--- a/daemons/execd/execd_commands.c
+++ b/daemons/execd/execd_commands.c
@@ -993,7 +993,6 @@ stonith_action_complete(lrmd_cmd_t *cmd, int exit_status,
switch (execution_status) {
case PCMK_EXEC_NOT_CONNECTED:
case PCMK_EXEC_INVALID:
- case PCMK_EXEC_NO_SECRETS:
execution_status = PCMK_EXEC_ERROR;
break;
diff --git a/include/crm/crm.h b/include/crm/crm.h
index 16b35e9c55..56b07cb12a 100644
--- a/include/crm/crm.h
+++ b/include/crm/crm.h
@@ -1,5 +1,5 @@
/*
- * Copyright 2004-2021 the Pacemaker project contributors
+ * Copyright 2004-2022 the Pacemaker project contributors
*
* The version control history for this file may have further details.
*
@@ -66,7 +66,7 @@ extern "C" {
* >=3.0.13: Fail counts include operation name and interval
* >=3.2.0: DC supports PCMK_EXEC_INVALID and PCMK_EXEC_NOT_CONNECTED
*/
-# define CRM_FEATURE_SET "3.12.0"
+# define CRM_FEATURE_SET "3.13.0"
/* Pacemaker's CPG protocols use fixed-width binary fields for the sender and
* recipient of a CPG message. This imposes an arbitrary limit on cluster node
diff --git a/lib/pengine/unpack.c b/lib/pengine/unpack.c
index 3e0384cd2a..8a2d2a6d6d 100644
--- a/lib/pengine/unpack.c
+++ b/lib/pengine/unpack.c
@@ -3879,9 +3879,6 @@ unpack_rsc_op(pe_resource_t *rsc, pe_node_t *node, xmlNode *xml_op,
case PCMK_EXEC_INVALID:
break; // Not done, do error handling
- /* These should only be possible in fence action results, not operation
- * history, but have some handling in place as a fail-safe.
- */
case PCMK_EXEC_NO_FENCE_DEVICE:
case PCMK_EXEC_NO_SECRETS:
status = PCMK_EXEC_ERROR_HARD;
--
2.27.0
From 75c1bdcf3ffc406e6fa286fd5fcff83e1e65591a Mon Sep 17 00:00:00 2001
From: Ken Gaillot <kgaillot@redhat.com>
Date: Wed, 10 Nov 2021 12:05:20 -0600
Subject: [PATCH 07/17] Low: executor: improve result for fence device probes
Now that lrmd_rsc_execute_stonith() sets a full result instead of just a legacy
return code, refactor lrmd_rsc_t's st_probe_rc as an execution status (and
rename to fence_probe_result). Set an appropriate exit reason when available.
---
daemons/execd/execd_commands.c | 57 ++++++++++++++++++++++++++-------
daemons/execd/pacemaker-execd.h | 9 +++++-
2 files changed, 54 insertions(+), 12 deletions(-)
diff --git a/daemons/execd/execd_commands.c b/daemons/execd/execd_commands.c
index 4ced6d1d5c..6e5505e973 100644
--- a/daemons/execd/execd_commands.c
+++ b/daemons/execd/execd_commands.c
@@ -285,7 +285,9 @@ build_rsc_from_xml(xmlNode * msg)
rsc->provider = crm_element_value_copy(rsc_xml, F_LRMD_PROVIDER);
rsc->type = crm_element_value_copy(rsc_xml, F_LRMD_TYPE);
rsc->work = mainloop_add_trigger(G_PRIORITY_HIGH, lrmd_rsc_dispatch, rsc);
- rsc->st_probe_rc = -ENODEV; // if stonith, initialize to "not running"
+
+ // Initialize fence device probes (to return "not running")
+ rsc->fence_probe_result = PCMK_EXEC_NO_FENCE_DEVICE;
return rsc;
}
@@ -1029,10 +1031,10 @@ stonith_action_complete(lrmd_cmd_t *cmd, int exit_status,
if ((rsc != NULL) && pcmk__result_ok(&(cmd->result))) {
if (pcmk__str_eq(cmd->action, "start", pcmk__str_casei)) {
- rsc->st_probe_rc = pcmk_ok; // maps to PCMK_OCF_OK
+ rsc->fence_probe_result = PCMK_EXEC_DONE; // "running"
} else if (pcmk__str_eq(cmd->action, "stop", pcmk__str_casei)) {
- rsc->st_probe_rc = -ENODEV; // maps to PCMK_OCF_NOT_RUNNING
+ rsc->fence_probe_result = PCMK_EXEC_NO_FENCE_DEVICE; // "not running"
}
}
@@ -1081,14 +1083,13 @@ stonith_connection_failed(void)
if (pcmk__str_eq(rsc->class, PCMK_RESOURCE_CLASS_STONITH, pcmk__str_casei)) {
/* If we registered this fence device, we don't know whether the
* fencer still has the registration or not. Cause future probes to
- * return PCMK_OCF_UNKNOWN_ERROR until the resource is stopped or
- * started successfully. This is especially important if the
- * controller also went away (possibly due to a cluster layer
- * restart) and won't receive our client notification of any
- * monitors finalized below.
+ * return an error until the resource is stopped or started
+ * successfully. This is especially important if the controller also
+ * went away (possibly due to a cluster layer restart) and won't
+ * receive our client notification of any monitors finalized below.
*/
- if (rsc->st_probe_rc == pcmk_ok) {
- rsc->st_probe_rc = pcmk_err_generic;
+ if (rsc->fence_probe_result == PCMK_EXEC_DONE) {
+ rsc->fence_probe_result = PCMK_EXEC_NOT_CONNECTED;
}
if (rsc->active) {
@@ -1213,6 +1214,39 @@ execd_stonith_monitor(stonith_t *stonith_api, lrmd_rsc_t *rsc, lrmd_cmd_t *cmd)
return rc;
}
+/*!
+ * \internal
+ * \brief Finalize the result of a fence device probe
+ *
+ * \param[in] cmd Probe action
+ * \param[in] probe_result Probe result
+ */
+static void
+finalize_fence_device_probe(lrmd_cmd_t *cmd, enum pcmk_exec_status probe_result)
+{
+ int exit_status = CRM_EX_ERROR;
+ const char *reason = NULL;
+
+ switch (probe_result) {
+ case PCMK_EXEC_DONE: // Device is "running"
+ exit_status = CRM_EX_OK;
+ break;
+
+ case PCMK_EXEC_NO_FENCE_DEVICE: // Device is "not running"
+ break;
+
+ case PCMK_EXEC_NOT_CONNECTED: // stonith_connection_failed()
+ reason = "Lost connection to fencer";
+ break;
+
+ default: // Shouldn't be possible
+ probe_result = PCMK_EXEC_ERROR;
+ reason = "Invalid fence device probe result (bug?)";
+ break;
+ }
+ stonith_action_complete(cmd, exit_status, probe_result, reason);
+}
+
static void
lrmd_rsc_execute_stonith(lrmd_rsc_t * rsc, lrmd_cmd_t * cmd)
{
@@ -1237,7 +1271,8 @@ lrmd_rsc_execute_stonith(lrmd_rsc_t * rsc, lrmd_cmd_t * cmd)
if (cmd->interval_ms > 0) {
do_monitor = TRUE;
} else {
- rc = rsc->st_probe_rc;
+ finalize_fence_device_probe(cmd, rsc->fence_probe_result);
+ return;
}
}
diff --git a/daemons/execd/pacemaker-execd.h b/daemons/execd/pacemaker-execd.h
index 51ef8d22e6..057d889584 100644
--- a/daemons/execd/pacemaker-execd.h
+++ b/daemons/execd/pacemaker-execd.h
@@ -41,7 +41,14 @@ typedef struct lrmd_rsc_s {
* that have been handed off from the pending ops list. */
GList *recurring_ops;
- int st_probe_rc; // What value should be returned for a probe if stonith
+ /* If this resource is a fence device, probes are handled internally by the
+ * executor, and this value indicates the result that should currently be
+ * returned for probes. It should be one of:
+ * PCMK_EXEC_DONE (to indicate "running"),
+ * PCMK_EXEC_NO_FENCE_DEVICE ("not running"), or
+ * PCMK_EXEC_NOT_CONNECTED ("unknown because fencer connection was lost").
+ */
+ enum pcmk_exec_status fence_probe_result;
crm_trigger_t *work;
} lrmd_rsc_t;
--
2.27.0
From 1ab799d945171ab8d91bd0aada64e70a71193e5c Mon Sep 17 00:00:00 2001
From: Ken Gaillot <kgaillot@redhat.com>
Date: Wed, 10 Nov 2021 12:14:48 -0600
Subject: [PATCH 08/17] Low: executor: don't require a fencer connection for
probes
For fence devices, probe results are based on earlier state determinations,
so handle them before requiring an active fencer connection. The effect may be
negligible, but it would allow probes to proceed while waiting for a
reconnection.
---
daemons/execd/execd_commands.c | 15 ++++++++-------
1 file changed, 8 insertions(+), 7 deletions(-)
diff --git a/daemons/execd/execd_commands.c b/daemons/execd/execd_commands.c
index 6e5505e973..5999ba19c9 100644
--- a/daemons/execd/execd_commands.c
+++ b/daemons/execd/execd_commands.c
@@ -1255,7 +1255,13 @@ lrmd_rsc_execute_stonith(lrmd_rsc_t * rsc, lrmd_cmd_t * cmd)
stonith_t *stonith_api = get_stonith_connection();
- if (!stonith_api) {
+ if (pcmk__str_eq(cmd->action, "monitor", pcmk__str_casei)
+ && (cmd->interval_ms == 0)) {
+ // Probes don't require a fencer connection
+ finalize_fence_device_probe(cmd, rsc->fence_probe_result);
+ return;
+
+ } else if (stonith_api == NULL) {
rc = -ENOTCONN;
} else if (pcmk__str_eq(cmd->action, "start", pcmk__str_casei)) {
@@ -1268,12 +1274,7 @@ lrmd_rsc_execute_stonith(lrmd_rsc_t * rsc, lrmd_cmd_t * cmd)
rc = execd_stonith_stop(stonith_api, rsc);
} else if (pcmk__str_eq(cmd->action, "monitor", pcmk__str_casei)) {
- if (cmd->interval_ms > 0) {
- do_monitor = TRUE;
- } else {
- finalize_fence_device_probe(cmd, rsc->fence_probe_result);
- return;
- }
+ do_monitor = TRUE;
}
if (do_monitor) {
--
2.27.0
From adf41fb1637bcc9a6e057be52d61a0b26e4535cc Mon Sep 17 00:00:00 2001
From: Ken Gaillot <kgaillot@redhat.com>
Date: Wed, 10 Nov 2021 12:20:34 -0600
Subject: [PATCH 09/17] Low: executor: return an error for unsupported fence
device actions
... and set an exit reason. Previously, it would return success for unsupported
actions. It shouldn't be possible, but it would be nice to have an indication
of what is wrong if a bug is introduced.
---
daemons/execd/execd_commands.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/daemons/execd/execd_commands.c b/daemons/execd/execd_commands.c
index 5999ba19c9..772d6446dc 100644
--- a/daemons/execd/execd_commands.c
+++ b/daemons/execd/execd_commands.c
@@ -1275,6 +1275,12 @@ lrmd_rsc_execute_stonith(lrmd_rsc_t * rsc, lrmd_cmd_t * cmd)
} else if (pcmk__str_eq(cmd->action, "monitor", pcmk__str_casei)) {
do_monitor = TRUE;
+
+ } else {
+ stonith_action_complete(cmd, PCMK_OCF_UNIMPLEMENT_FEATURE,
+ PCMK_EXEC_ERROR,
+ "Invalid fence device action (bug?)");
+ return;
}
if (do_monitor) {
--
2.27.0
From af59dfe85bc83f5609d0a3b3b7939271549cb76f Mon Sep 17 00:00:00 2001
From: Ken Gaillot <kgaillot@redhat.com>
Date: Wed, 10 Nov 2021 12:24:07 -0600
Subject: [PATCH 10/17] Low: executor: set exit reason if no fencer connection
---
daemons/execd/execd_commands.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/daemons/execd/execd_commands.c b/daemons/execd/execd_commands.c
index 772d6446dc..7ae309d94c 100644
--- a/daemons/execd/execd_commands.c
+++ b/daemons/execd/execd_commands.c
@@ -1262,7 +1262,10 @@ lrmd_rsc_execute_stonith(lrmd_rsc_t * rsc, lrmd_cmd_t * cmd)
return;
} else if (stonith_api == NULL) {
- rc = -ENOTCONN;
+ stonith_action_complete(cmd, PCMK_OCF_UNKNOWN_ERROR,
+ PCMK_EXEC_NOT_CONNECTED,
+ "No connection to fencer");
+ return;
} else if (pcmk__str_eq(cmd->action, "start", pcmk__str_casei)) {
rc = execd_stonith_start(stonith_api, rsc, cmd);
--
2.27.0
From ad0930b75d5617490c3a0dc3c6b83411b3c4536d Mon Sep 17 00:00:00 2001
From: Ken Gaillot <kgaillot@redhat.com>
Date: Wed, 10 Nov 2021 14:42:26 -0600
Subject: [PATCH 11/17] Test: cts-fence-helper: log full result in fence
callback
---
daemons/fenced/cts-fence-helper.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/daemons/fenced/cts-fence-helper.c b/daemons/fenced/cts-fence-helper.c
index 2adb032f24..c2b55d73b9 100644
--- a/daemons/fenced/cts-fence-helper.c
+++ b/daemons/fenced/cts-fence-helper.c
@@ -1,5 +1,5 @@
/*
- * Copyright 2009-2020 the Pacemaker project contributors
+ * Copyright 2009-2021 the Pacemaker project contributors
*
* This source code is licensed under the GNU General Public License version 2
* or later (GPLv2+) WITHOUT ANY WARRANTY.
@@ -132,7 +132,10 @@ st_callback(stonith_t * st, stonith_event_t * e)
static void
st_global_callback(stonith_t * stonith, stonith_callback_data_t * data)
{
- crm_notice("Call id %d completed with rc %d", data->call_id, data->rc);
+ crm_notice("Call %d exited %d: %s (%s)",
+ data->call_id, stonith__exit_status(data),
+ stonith__execution_status(data),
+ crm_str(stonith__exit_reason(data)));
}
static void
--
2.27.0
From 1b50ff4d83b7a96cd70389891b7b6568812f66f6 Mon Sep 17 00:00:00 2001
From: Ken Gaillot <kgaillot@redhat.com>
Date: Wed, 10 Nov 2021 15:10:14 -0600
Subject: [PATCH 12/17] Test: cts-fence-helper: track full result instead of
legacy return code
---
daemons/fenced/cts-fence-helper.c | 77 +++++++++++++++----------------
1 file changed, 37 insertions(+), 40 deletions(-)
diff --git a/daemons/fenced/cts-fence-helper.c b/daemons/fenced/cts-fence-helper.c
index c2b55d73b9..2739f57804 100644
--- a/daemons/fenced/cts-fence-helper.c
+++ b/daemons/fenced/cts-fence-helper.c
@@ -34,23 +34,12 @@
static GMainLoop *mainloop = NULL;
static crm_trigger_t *trig = NULL;
static int mainloop_iter = 0;
-static int callback_rc = 0;
+static pcmk__action_result_t result = PCMK__UNKNOWN_RESULT;
+
typedef void (*mainloop_test_iteration_cb) (int check_event);
#define MAINLOOP_DEFAULT_TIMEOUT 2
-#define mainloop_test_done(pass) \
- if (pass) { \
- crm_info("SUCCESS - %s", __func__); \
- mainloop_iter++; \
- mainloop_set_trigger(trig); \
- } else { \
- crm_err("FAILURE = %s async_callback %d", __func__, callback_rc); \
- crm_exit(CRM_EX_ERROR); \
- } \
- callback_rc = 0; \
-
-
enum test_modes {
test_standard = 0, // test using a specific developer environment
test_passive, // watch notifications only
@@ -93,6 +82,23 @@ static const int st_opts = st_opt_sync_call;
static int expected_notifications = 0;
static int verbose = 0;
+static void
+mainloop_test_done(const char *origin, bool pass)
+{
+ if (pass) {
+ crm_info("SUCCESS - %s", origin);
+ mainloop_iter++;
+ mainloop_set_trigger(trig);
+ result.execution_status = PCMK_EXEC_UNKNOWN;
+ result.exit_status = CRM_EX_OK;
+ } else {
+ crm_err("FAILURE - %s (%d: %s)", origin, result.exit_status,
+ pcmk_exec_status_str(result.execution_status));
+ crm_exit(CRM_EX_ERROR);
+ }
+}
+
+
static void
dispatch_helper(int timeout)
{
@@ -385,7 +391,9 @@ static void
static void
mainloop_callback(stonith_t * stonith, stonith_callback_data_t * data)
{
- callback_rc = data->rc;
+ pcmk__set_result(&result, stonith__exit_status(data),
+ stonith__execution_status(data),
+ stonith__exit_reason(data));
iterate_mainloop_tests(TRUE);
}
@@ -404,18 +412,14 @@ test_async_fence_pass(int check_event)
int rc = 0;
if (check_event) {
- if (callback_rc != 0) {
- mainloop_test_done(FALSE);
- } else {
- mainloop_test_done(TRUE);
- }
+ mainloop_test_done(__func__, (result.exit_status == CRM_EX_OK));
return;
}
rc = st->cmds->fence(st, 0, "true_1_node1", "off", MAINLOOP_DEFAULT_TIMEOUT, 0);
if (rc < 0) {
crm_err("fence failed with rc %d", rc);
- mainloop_test_done(FALSE);
+ mainloop_test_done(__func__, false);
}
register_callback_helper(rc);
/* wait for event */
@@ -431,15 +435,15 @@ test_async_fence_custom_timeout(int check_event)
if (check_event) {
uint32_t diff = (time(NULL) - begin);
- if (callback_rc != -ETIME) {
- mainloop_test_done(FALSE);
+ if (result.execution_status != PCMK_EXEC_TIMEOUT) {
+ mainloop_test_done(__func__, false);
} else if (diff < CUSTOM_TIMEOUT_ADDITION + MAINLOOP_DEFAULT_TIMEOUT) {
crm_err
("Custom timeout test failed, callback expiration should be updated to %d, actual timeout was %d",
CUSTOM_TIMEOUT_ADDITION + MAINLOOP_DEFAULT_TIMEOUT, diff);
- mainloop_test_done(FALSE);
+ mainloop_test_done(__func__, false);
} else {
- mainloop_test_done(TRUE);
+ mainloop_test_done(__func__, true);
}
return;
}
@@ -448,7 +452,7 @@ test_async_fence_custom_timeout(int check_event)
rc = st->cmds->fence(st, 0, "custom_timeout_node1", "off", MAINLOOP_DEFAULT_TIMEOUT, 0);
if (rc < 0) {
crm_err("fence failed with rc %d", rc);
- mainloop_test_done(FALSE);
+ mainloop_test_done(__func__, false);
}
register_callback_helper(rc);
/* wait for event */
@@ -460,18 +464,15 @@ test_async_fence_timeout(int check_event)
int rc = 0;
if (check_event) {
- if (callback_rc != -ENODEV) {
- mainloop_test_done(FALSE);
- } else {
- mainloop_test_done(TRUE);
- }
+ mainloop_test_done(__func__,
+ (result.execution_status == PCMK_EXEC_NO_FENCE_DEVICE));
return;
}
rc = st->cmds->fence(st, 0, "false_1_node2", "off", MAINLOOP_DEFAULT_TIMEOUT, 0);
if (rc < 0) {
crm_err("fence failed with rc %d", rc);
- mainloop_test_done(FALSE);
+ mainloop_test_done(__func__, false);
}
register_callback_helper(rc);
/* wait for event */
@@ -483,18 +484,14 @@ test_async_monitor(int check_event)
int rc = 0;
if (check_event) {
- if (callback_rc) {
- mainloop_test_done(FALSE);
- } else {
- mainloop_test_done(TRUE);
- }
+ mainloop_test_done(__func__, (result.exit_status == CRM_EX_OK));
return;
}
rc = st->cmds->monitor(st, 0, "false_1", MAINLOOP_DEFAULT_TIMEOUT);
if (rc < 0) {
crm_err("monitor failed with rc %d", rc);
- mainloop_test_done(FALSE);
+ mainloop_test_done(__func__, false);
}
register_callback_helper(rc);
@@ -531,7 +528,7 @@ test_register_async_devices(int check_event)
params);
stonith_key_value_freeall(params, 1, 1);
- mainloop_test_done(TRUE);
+ mainloop_test_done(__func__, true);
}
static void
@@ -540,11 +537,11 @@ try_mainloop_connect(int check_event)
int rc = stonith_api_connect_retry(st, crm_system_name, 10);
if (rc == pcmk_ok) {
- mainloop_test_done(TRUE);
+ mainloop_test_done(__func__, true);
return;
}
crm_err("API CONNECTION FAILURE");
- mainloop_test_done(FALSE);
+ mainloop_test_done(__func__, false);
}
static void
--
2.27.0
From 8ff4b384a34828a4a9eebe896324ba8c89e5d66c Mon Sep 17 00:00:00 2001
From: Ken Gaillot <kgaillot@redhat.com>
Date: Mon, 10 Jan 2022 10:27:45 -0600
Subject: [PATCH 13/17] Doc: Pacemaker Development: correct typo
caught in review
---
doc/sphinx/Pacemaker_Development/components.rst | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/doc/sphinx/Pacemaker_Development/components.rst b/doc/sphinx/Pacemaker_Development/components.rst
index 68158484ce..c4d10fc9f5 100644
--- a/doc/sphinx/Pacemaker_Development/components.rst
+++ b/doc/sphinx/Pacemaker_Development/components.rst
@@ -171,7 +171,7 @@ messaging layer callback, which calls:
* ``fenced_process_fencing_reply()``, which calls either
``request_peer_fencing()`` (to retry a failed operation, or try the next
- device in a topology is appropriate, which issues a new
+ device in a topology if appropriate, which issues a new
``STONITH_OP_FENCE`` request, proceeding as before) or
``finalize_op()`` (if the operation is definitively failed or
successful).
--
2.27.0
From 822ee6fbd8583a2939c636b3bccceffcc338c567 Mon Sep 17 00:00:00 2001
From: Ken Gaillot <kgaillot@redhat.com>
Date: Mon, 10 Jan 2022 11:05:40 -0600
Subject: [PATCH 14/17] Doc: Pacemaker Development: add a placeholder for how
fencing history works
---
doc/sphinx/Pacemaker_Development/components.rst | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/doc/sphinx/Pacemaker_Development/components.rst b/doc/sphinx/Pacemaker_Development/components.rst
index c4d10fc9f5..760da77c9b 100644
--- a/doc/sphinx/Pacemaker_Development/components.rst
+++ b/doc/sphinx/Pacemaker_Development/components.rst
@@ -183,6 +183,21 @@ Finally, all peers receive the broadcast result and call
* ``finalize_op()``, which sends the result to all local clients.
+.. index::
+ single: fence history
+
+Fencing History
+_______________
+
+The fencer keeps a running history of all fencing operations. The bulk of the
+relevant code is in `fenced_history.c` and ensures the history is synchronized
+across all nodes even if a node leaves and rejoins the cluster.
+
+In libstonithd, this information is represented by `stonith_history_t` and is
+queryable by the `stonith_api_operations_t:history()` method. `crm_mon` and
+`stonith_admin` use this API to display the history.
+
+
.. index::
single: scheduler
single: pacemaker-schedulerd
--
2.27.0
From d9b4060f2dadb40d5ee7535e0b2890a83d216c1e Mon Sep 17 00:00:00 2001
From: Ken Gaillot <kgaillot@redhat.com>
Date: Mon, 10 Jan 2022 11:25:31 -0600
Subject: [PATCH 15/17] Log: fencing: add exit reason for results without a
callback
---
lib/fencing/st_client.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/lib/fencing/st_client.c b/lib/fencing/st_client.c
index 9d93ffd481..4823751267 100644
--- a/lib/fencing/st_client.c
+++ b/lib/fencing/st_client.c
@@ -926,9 +926,11 @@ invoke_registered_callbacks(stonith_t *stonith, xmlNode *msg, int call_id)
cb_info->user_data, cb_info->callback);
} else if ((private->op_callback == NULL) && !pcmk__result_ok(&result)) {
- crm_warn("Fencing action without registered callback failed: %d (%s)",
+ crm_warn("Fencing action without registered callback failed: %d (%s%s%s)",
result.exit_status,
- pcmk_exec_status_str(result.execution_status));
+ pcmk_exec_status_str(result.execution_status),
+ ((result.exit_reason == NULL)? "" : ": "),
+ ((result.exit_reason == NULL)? "" : result.exit_reason));
crm_log_xml_debug(msg, "Failed fence update");
}
--
2.27.0
From 9956b3ad2f1c6fba305252616ad0b35a38ab96da Mon Sep 17 00:00:00 2001
From: Ken Gaillot <kgaillot@redhat.com>
Date: Tue, 11 Jan 2022 09:28:27 -0600
Subject: [PATCH 16/17] Refactor: executor: keep formatting consistent
... even if the line runs a little long
---
daemons/execd/execd_commands.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/daemons/execd/execd_commands.c b/daemons/execd/execd_commands.c
index 7ae309d94c..bc3b392b2c 100644
--- a/daemons/execd/execd_commands.c
+++ b/daemons/execd/execd_commands.c
@@ -1,5 +1,5 @@
/*
- * Copyright 2012-2021 the Pacemaker project contributors
+ * Copyright 2012-2022 the Pacemaker project contributors
*
* The version control history for this file may have further details.
*
@@ -1297,7 +1297,7 @@ lrmd_rsc_execute_stonith(lrmd_rsc_t * rsc, lrmd_cmd_t * cmd)
stonith_action_complete(cmd,
((rc == pcmk_ok)? CRM_EX_OK : CRM_EX_ERROR),
stonith__legacy2status(rc),
- rc == -pcmk_err_generic? NULL : pcmk_strerror(rc));
+ ((rc == -pcmk_err_generic)? NULL : pcmk_strerror(rc)));
}
static int
--
2.27.0
From 69d8ecb17568d6c3ecad0e5735756f58a4bce5a1 Mon Sep 17 00:00:00 2001
From: Ken Gaillot <kgaillot@redhat.com>
Date: Tue, 11 Jan 2022 09:29:03 -0600
Subject: [PATCH 17/17] Test: cts-fence-helper: use more intuitive execution
status for completed tests
It doesn't matter since the value is only checked against a couple of specific
failure values, but this is less confusing.
---
daemons/fenced/cts-fence-helper.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/daemons/fenced/cts-fence-helper.c b/daemons/fenced/cts-fence-helper.c
index 2739f57804..e222a59f9f 100644
--- a/daemons/fenced/cts-fence-helper.c
+++ b/daemons/fenced/cts-fence-helper.c
@@ -1,5 +1,5 @@
/*
- * Copyright 2009-2021 the Pacemaker project contributors
+ * Copyright 2009-2022 the Pacemaker project contributors
*
* This source code is licensed under the GNU General Public License version 2
* or later (GPLv2+) WITHOUT ANY WARRANTY.
@@ -89,7 +89,7 @@ mainloop_test_done(const char *origin, bool pass)
crm_info("SUCCESS - %s", origin);
mainloop_iter++;
mainloop_set_trigger(trig);
- result.execution_status = PCMK_EXEC_UNKNOWN;
+ result.execution_status = PCMK_EXEC_DONE;
result.exit_status = CRM_EX_OK;
} else {
crm_err("FAILURE - %s (%d: %s)", origin, result.exit_status,
--
2.27.0
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