* collectd - src/mcelog.c
* MIT License
*
- * Copyright(c) 2016 Intel Corporation. All rights reserved.
+ * Copyright(c) 2016-2017 Intel Corporation. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* Krzysztof Matczak <krzysztofx.matczak@intel.com>
*/
-#include "common.h"
#include "collectd.h"
+#include "common.h"
+#include "utils_llist.h"
+
#include <poll.h>
#include <sys/socket.h>
#include <sys/un.h>
#define MCELOG_DIMM_NAME "DMI_NAME"
#define MCELOG_CORRECTED_ERR "corrected memory errors"
#define MCELOG_UNCORRECTED_ERR "uncorrected memory errors"
+#define MCELOG_CORRECTED_ERR_TIMED "corrected memory timed errors"
+#define MCELOG_UNCORRECTED_ERR_TIMED "uncorrected memory timed errors"
+#define MCELOG_CORRECTED_ERR_TYPE_INS "corrected_memory_errors"
+#define MCELOG_UNCORRECTED_ERR_TYPE_INS "uncorrected_memory_errors"
typedef struct mcelog_config_s {
char logfile[PATH_MAX]; /* mcelog logfile */
pthread_t tid; /* poll thread id */
+ llist_t *dimms_list; /* DIMMs list */
+ /* lock for dimms cache */
+ _Bool persist;
+ pthread_mutex_t dimms_lock;
} mcelog_config_t;
typedef struct socket_adapter_s socket_adapter_t;
static int socket_reinit(socket_adapter_t *self);
static int socket_receive(socket_adapter_t *self, FILE **p_file);
-static mcelog_config_t g_mcelog_config = {.logfile = "/var/log/mcelog"};
+static mcelog_config_t g_mcelog_config = {
+ .logfile = "/var/log/mcelog", .persist = 0,
+};
static socket_adapter_t socket_adapter = {
.sock_fd = -1,
};
static _Bool mcelog_thread_running;
+static _Bool mcelog_apply_defaults;
+
+static void mcelog_free_dimms_list_records(llist_t *dimms_list) {
+
+ for (llentry_t *e = llist_head(dimms_list); e != NULL; e = e->next) {
+ sfree(e->key);
+ sfree(e->value);
+ }
+}
+
+/* Create or get dimm by dimm name/location */
+static llentry_t *mcelog_dimm(const mcelog_memory_rec_t *rec,
+ llist_t *dimms_list) {
+
+ char dimm_name[DATA_MAX_NAME_LEN];
+
+ if (strlen(rec->dimm_name) > 0) {
+ ssnprintf(dimm_name, sizeof(dimm_name), "%s_%s", rec->location,
+ rec->dimm_name);
+ } else
+ sstrncpy(dimm_name, rec->location, sizeof(dimm_name));
+
+ llentry_t *dimm_le = llist_search(g_mcelog_config.dimms_list, dimm_name);
+
+ if (dimm_le == NULL) {
+ mcelog_memory_rec_t *dimm_mr = calloc(1, sizeof(*dimm_mr));
+ if (dimm_mr == NULL) {
+ ERROR(MCELOG_PLUGIN ": Error allocating dimm memory item");
+ return NULL;
+ }
+ char *p_name = strdup(dimm_name);
+ if (p_name == NULL) {
+ ERROR(MCELOG_PLUGIN ": strdup: error");
+ free(dimm_mr);
+ return NULL;
+ }
+
+ /* add new dimm */
+ dimm_le = llentry_create(p_name, dimm_mr);
+ if (dimm_le == NULL) {
+ ERROR(MCELOG_PLUGIN ": llentry_create(): error");
+ free(dimm_mr);
+ free(p_name);
+ return NULL;
+ }
+ pthread_mutex_lock(&g_mcelog_config.dimms_lock);
+ llist_append(g_mcelog_config.dimms_list, dimm_le);
+ pthread_mutex_unlock(&g_mcelog_config.dimms_lock);
+ }
+
+ return dimm_le;
+}
+
+static void mcelog_update_dimm_stats(llentry_t *dimm,
+ const mcelog_memory_rec_t *rec) {
+ pthread_mutex_lock(&g_mcelog_config.dimms_lock);
+ memcpy(dimm->value, rec, sizeof(mcelog_memory_rec_t));
+ pthread_mutex_unlock(&g_mcelog_config.dimms_lock);
+}
static int mcelog_config(oconfig_item_t *ci) {
+ int use_logfile = 0, use_memory = 0;
for (int i = 0; i < ci->children_num; i++) {
oconfig_item_t *child = ci->children + i;
- if (strcasecmp("McelogClientSocket", child->key) == 0) {
- if (cf_util_get_string_buffer(child, socket_adapter.unix_sock.sun_path,
- sizeof(socket_adapter.unix_sock.sun_path)) <
- 0) {
- ERROR(MCELOG_PLUGIN ": Invalid configuration option: \"%s\".",
+ if (strcasecmp("McelogLogfile", child->key) == 0) {
+ use_logfile = 1;
+ if (use_memory) {
+ ERROR(MCELOG_PLUGIN ": Invalid configuration option: \"%s\", Memory "
+ "option is already configured.",
child->key);
return -1;
}
- } else if (strcasecmp("McelogLogfile", child->key) == 0) {
if (cf_util_get_string_buffer(child, g_mcelog_config.logfile,
sizeof(g_mcelog_config.logfile)) < 0) {
ERROR(MCELOG_PLUGIN ": Invalid configuration option: \"%s\".",
child->key);
return -1;
}
+ memset(socket_adapter.unix_sock.sun_path, 0,
+ sizeof(socket_adapter.unix_sock.sun_path));
+ } else if (strcasecmp("Memory", child->key) == 0) {
+ if (use_logfile) {
+ ERROR(MCELOG_PLUGIN ": Invalid configuration option: \"%s\", Logfile "
+ "option is already configured.",
+ child->key);
+ return (-1);
+ }
+ use_memory = 1;
+ oconfig_item_t *mem_child = child->children;
+ for (int j = 0; j < child->children_num; j++) {
+ mem_child += j;
+ if (strcasecmp("McelogClientSocket", mem_child->key) == 0) {
+ if (cf_util_get_string_buffer(
+ mem_child, socket_adapter.unix_sock.sun_path,
+ sizeof(socket_adapter.unix_sock.sun_path)) < 0) {
+ ERROR(MCELOG_PLUGIN ": Invalid configuration option: \"%s\".",
+ mem_child->key);
+ return (-1);
+ }
+ } else if (strcasecmp("PersistentNotification", mem_child->key) == 0) {
+ if (cf_util_get_boolean(mem_child, &g_mcelog_config.persist) < 0) {
+ ERROR(MCELOG_PLUGIN ": Invalid configuration option: \"%s\".",
+ mem_child->key);
+ return (-1);
+ }
+ } else {
+ ERROR(MCELOG_PLUGIN ": Invalid Memory configuration option: \"%s\".",
+ mem_child->key);
+ return (-1);
+ }
+ }
+ memset(g_mcelog_config.logfile, 0, sizeof(g_mcelog_config.logfile));
} else {
ERROR(MCELOG_PLUGIN ": Invalid configuration option: \"%s\".",
child->key);
return -1;
}
}
- return 0;
+
+ if (!use_logfile && !use_memory)
+ mcelog_apply_defaults = 1;
+
+ return (0);
}
static int socket_close(socket_adapter_t *self) {
return ret;
}
-static int mcelog_prepare_notification(notification_t *n,
- const mcelog_memory_rec_t *mr) {
- if (n == NULL || mr == NULL)
- return -1;
+static int mcelog_dispatch_mem_notifications(const mcelog_memory_rec_t *mr) {
+ notification_t n = {.severity = NOTIF_WARNING,
+ .time = cdtime(),
+ .plugin = MCELOG_PLUGIN,
+ .type = "errors"};
- if ((mr->location[0] != '\0') &&
- (plugin_notification_meta_add_string(n, MCELOG_SOCKET_STR, mr->location) <
- 0)) {
- ERROR(MCELOG_PLUGIN ": add memory location meta data failed");
- return -1;
- }
- if ((mr->dimm_name[0] != '\0') &&
- (plugin_notification_meta_add_string(n, MCELOG_DIMM_NAME, mr->dimm_name) <
- 0)) {
- ERROR(MCELOG_PLUGIN ": add DIMM name meta data failed");
- plugin_notification_meta_free(n->meta);
- return -1;
- }
- if (plugin_notification_meta_add_signed_int(n, MCELOG_CORRECTED_ERR,
- mr->corrected_err_total) < 0) {
- ERROR(MCELOG_PLUGIN ": add corrected errors meta data failed");
- plugin_notification_meta_free(n->meta);
- return -1;
- }
- if (plugin_notification_meta_add_signed_int(
- n, "corrected memory timed errors", mr->corrected_err_timed) < 0) {
- ERROR(MCELOG_PLUGIN ": add corrected timed errors meta data failed");
- plugin_notification_meta_free(n->meta);
- return -1;
- }
- if ((mr->corrected_err_timed_period[0] != '\0') &&
- (plugin_notification_meta_add_string(n, "corrected errors time period",
- mr->corrected_err_timed_period) <
- 0)) {
- ERROR(MCELOG_PLUGIN ": add corrected errors period meta data failed");
- plugin_notification_meta_free(n->meta);
- return -1;
+ int dispatch_corrected_notifs = 0, dispatch_uncorrected_notifs = 0;
+
+ if (mr == NULL)
+ return (-1);
+
+ llentry_t *dimm = mcelog_dimm(mr, g_mcelog_config.dimms_list);
+ if (dimm == NULL) {
+ ERROR(MCELOG_PLUGIN
+ ": Error adding/getting dimm memory item to/from cache");
+ return (-1);
}
- if (plugin_notification_meta_add_signed_int(n, MCELOG_UNCORRECTED_ERR,
- mr->uncorrected_err_total) < 0) {
- ERROR(MCELOG_PLUGIN ": add corrected errors meta data failed");
- plugin_notification_meta_free(n->meta);
- return -1;
+ mcelog_memory_rec_t *mr_old = dimm->value;
+ if (!g_mcelog_config.persist) {
+
+ if (mr_old->corrected_err_total != mr->corrected_err_total ||
+ mr_old->corrected_err_timed != mr->corrected_err_timed)
+ dispatch_corrected_notifs = 1;
+
+ if (mr_old->uncorrected_err_total != mr->uncorrected_err_total ||
+ mr_old->uncorrected_err_timed != mr->uncorrected_err_timed)
+ dispatch_uncorrected_notifs = 1;
+
+ if (!dispatch_corrected_notifs && !dispatch_uncorrected_notifs) {
+ DEBUG("%s: No new notifications to dispatch", MCELOG_PLUGIN);
+ return (0);
+ }
+ } else {
+ dispatch_corrected_notifs = 1;
+ dispatch_uncorrected_notifs = 1;
}
- if (plugin_notification_meta_add_signed_int(n,
- "uncorrected memory timed errors",
- mr->uncorrected_err_timed) < 0) {
- ERROR(MCELOG_PLUGIN ": add corrected timed errors meta data failed");
- plugin_notification_meta_free(n->meta);
- return -1;
+
+ sstrncpy(n.host, hostname_g, sizeof(n.host));
+
+ if (mr->dimm_name[0] != '\0')
+ ssnprintf(n.plugin_instance, sizeof(n.plugin_instance), "%s_%s",
+ mr->location, mr->dimm_name);
+ else
+ sstrncpy(n.plugin_instance, mr->location, sizeof(n.plugin_instance));
+
+ if (dispatch_corrected_notifs &&
+ (mr->corrected_err_total > 0 || mr->corrected_err_timed > 0)) {
+ /* Corrected Error Notifications */
+ plugin_notification_meta_add_signed_int(&n, MCELOG_CORRECTED_ERR,
+ mr->corrected_err_total);
+ plugin_notification_meta_add_signed_int(&n, MCELOG_CORRECTED_ERR_TIMED,
+ mr->corrected_err_timed);
+ ssnprintf(n.message, sizeof(n.message), MCELOG_CORRECTED_ERR);
+ sstrncpy(n.type_instance, MCELOG_CORRECTED_ERR_TYPE_INS,
+ sizeof(n.type_instance));
+ plugin_dispatch_notification(&n);
+ if (n.meta)
+ plugin_notification_meta_free(n.meta);
+ n.meta = NULL;
}
- if ((mr->uncorrected_err_timed_period[0] != '\0') &&
- (plugin_notification_meta_add_string(n, "uncorrected errors time period",
- mr->uncorrected_err_timed_period) <
- 0)) {
- ERROR(MCELOG_PLUGIN ": add corrected errors period meta data failed");
- plugin_notification_meta_free(n->meta);
- return -1;
+
+ if (dispatch_uncorrected_notifs &&
+ (mr->uncorrected_err_total > 0 || mr->uncorrected_err_timed > 0)) {
+ /* Uncorrected Error Notifications */
+ plugin_notification_meta_add_signed_int(&n, MCELOG_UNCORRECTED_ERR,
+ mr->uncorrected_err_total);
+ plugin_notification_meta_add_signed_int(&n, MCELOG_UNCORRECTED_ERR_TIMED,
+ mr->uncorrected_err_timed);
+ ssnprintf(n.message, sizeof(n.message), MCELOG_UNCORRECTED_ERR);
+ sstrncpy(n.type_instance, MCELOG_UNCORRECTED_ERR_TYPE_INS,
+ sizeof(n.type_instance));
+ n.severity = NOTIF_FAILURE;
+ plugin_dispatch_notification(&n);
+ if (n.meta)
+ plugin_notification_meta_free(n.meta);
+ n.meta = NULL;
}
return 0;
return -1;
}
+ llentry_t *dimm = mcelog_dimm(mr, g_mcelog_config.dimms_list);
+ if (dimm == NULL) {
+ ERROR(MCELOG_PLUGIN
+ ": Error adding/getting dimm memory item to/from cache");
+ return (-1);
+ }
+
value_list_t vl = {
.values_len = 1,
.values = &(value_t){.derive = (derive_t)mr->corrected_err_total},
.time = cdtime(),
.plugin = MCELOG_PLUGIN,
.type = "errors",
- .type_instance = "corrected_memory_errors"};
+ .type_instance = MCELOG_CORRECTED_ERR_TYPE_INS};
+
+ mcelog_update_dimm_stats(dimm, mr);
if (mr->dimm_name[0] != '\0')
ssnprintf(vl.plugin_instance, sizeof(vl.plugin_instance), "%s_%s",
vl.values = &(value_t){.derive = (derive_t)mr->corrected_err_timed};
plugin_dispatch_values(&vl);
- sstrncpy(vl.type_instance, "uncorrected_memory_errors",
+ sstrncpy(vl.type_instance, MCELOG_UNCORRECTED_ERR_TYPE_INS,
sizeof(vl.type_instance));
vl.values = &(value_t){.derive = (derive_t)mr->uncorrected_err_total};
plugin_dispatch_values(&vl);
continue;
}
- notification_t n = {.severity = NOTIF_OKAY,
- .time = cdtime(),
- .message = "Got memory errors info.",
- .plugin = MCELOG_PLUGIN,
- .type_instance = "memory_erros"};
-
- if (mcelog_prepare_notification(&n, &memory_record) == 0)
- mcelog_dispatch_notification(&n);
+ if (mcelog_dispatch_mem_notifications(&memory_record) != 0)
+ ERROR(MCELOG_PLUGIN ": Failed to submit memory errors notification");
if (mcelog_submit(&memory_record) != 0)
ERROR(MCELOG_PLUGIN ": Failed to submit memory errors");
memset(&memory_record, 0, sizeof(memory_record));
}
static int mcelog_init(void) {
+ if (mcelog_apply_defaults) {
+ INFO(MCELOG_PLUGIN
+ ": No configuration selected defaulting to memory errors.");
+ memset(g_mcelog_config.logfile, 0, sizeof(g_mcelog_config.logfile));
+ }
+ g_mcelog_config.dimms_list = llist_create();
+ int err = pthread_mutex_init(&g_mcelog_config.dimms_lock, NULL);
+ if (err < 0) {
+ ERROR(MCELOG_PLUGIN ": plugin: failed to initialize cache lock");
+ return (-1);
+ }
+
if (socket_adapter.reinit(&socket_adapter) != 0) {
ERROR(MCELOG_PLUGIN ": Cannot connect to client socket");
return -1;
}
- if (plugin_thread_create(&g_mcelog_config.tid, NULL, poll_worker, NULL,
- NULL) != 0) {
- ERROR(MCELOG_PLUGIN ": Error creating poll thread.");
- return -1;
+ if (strlen(socket_adapter.unix_sock.sun_path)) {
+ if (plugin_thread_create(&g_mcelog_config.tid, NULL, poll_worker, NULL,
+ NULL) != 0) {
+ ERROR(MCELOG_PLUGIN ": Error creating poll thread.");
+ return (-1);
+ }
}
return 0;
}
ret = -1;
}
}
-
+ pthread_mutex_lock(&g_mcelog_config.dimms_lock);
+ mcelog_free_dimms_list_records(g_mcelog_config.dimms_list);
+ llist_destroy(g_mcelog_config.dimms_list);
+ g_mcelog_config.dimms_list = NULL;
+ pthread_mutex_unlock(&g_mcelog_config.dimms_lock);
+ pthread_mutex_destroy(&g_mcelog_config.dimms_lock);
ret = socket_adapter.close(&socket_adapter) || ret;
pthread_rwlock_destroy(&(socket_adapter.lock));
return -ret;
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