* Jerome Renard <jerome.renard@gmail.com>
**/
+/**
+ * Current list of what is monitored and what is not monitored (yet)
+ *
+ * Field name Description Monitored
+ * ---------- ----------- ---------
+ * uptime Child uptime N
+ * client_conn Client connections accepted Y
+ * client_drop Connection dropped, no sess Y
+ * client_req Client requests received Y
+ * cache_hit Cache hits Y
+ * cache_hitpass Cache hits for pass Y
+ * cache_miss Cache misses Y
+ * backend_conn Backend conn. success Y
+ * backend_unhealthy Backend conn. not attempted Y
+ * backend_busy Backend conn. too many Y
+ * backend_fail Backend conn. failures Y
+ * backend_reuse Backend conn. reuses Y
+ * backend_toolate Backend conn. was closed Y
+ * backend_recycle Backend conn. recycles Y
+ * backend_unused Backend conn. unused Y
+ * fetch_head Fetch head Y
+ * fetch_length Fetch with Length Y
+ * fetch_chunked Fetch chunked Y
+ * fetch_eof Fetch EOF Y
+ * fetch_bad Fetch had bad headers Y
+ * fetch_close Fetch wanted close Y
+ * fetch_oldhttp Fetch pre HTTP/1.1 closed Y
+ * fetch_zero Fetch zero len Y
+ * fetch_failed Fetch failed Y
+ * n_sess_mem N struct sess_mem N
+ * n_sess N struct sess N
+ * n_object N struct object N
+ * n_vampireobject N unresurrected objects N
+ * n_objectcore N struct objectcore N
+ * n_objecthead N struct objecthead N
+ * n_smf N struct smf N
+ * n_smf_frag N small free smf N
+ * n_smf_large N large free smf N
+ * n_vbe_conn N struct vbe_conn N
+ * n_wrk N worker threads N
+ * n_wrk_create N worker threads created N
+ * n_wrk_failed N worker threads not created N
+ * n_wrk_max N worker threads limited N
+ * n_wrk_queue N queued work requests N
+ * n_wrk_overflow N overflowed work requests N
+ * n_wrk_drop N dropped work requests N
+ * n_backend N backends N
+ * n_expired N expired objects N
+ * n_lru_nuked N LRU nuked objects N
+ * n_lru_saved N LRU saved objects N
+ * n_lru_moved N LRU moved objects N
+ * n_deathrow N objects on deathrow N
+ * losthdr HTTP header overflows N
+ * n_objsendfile Objects sent with sendfile N
+ * n_objwrite Objects sent with write N
+ * n_objoverflow Objects overflowing workspace N
+ * s_sess Total Sessions N
+ * s_req Total Requests N
+ * s_pipe Total pipe N
+ * s_pass Total pass N
+ * s_fetch Total fetch N
+ * s_hdrbytes Total header bytes N
+ * s_bodybytes Total body bytes N
+ * sess_closed Session Closed N
+ * sess_pipeline Session Pipeline N
+ * sess_readahead Session Read Ahead N
+ * sess_linger Session Linger N
+ * sess_herd Session herd N
+ * shm_records SHM records Y
+ * shm_writes SHM writes Y
+ * shm_flushes SHM flushes due to overflow Y
+ * shm_cont SHM MTX contention Y
+ * shm_cycles SHM cycles through buffer Y
+ * sm_nreq allocator requests Y
+ * sm_nobj outstanding allocations Y
+ * sm_balloc bytes allocated Y
+ * sm_bfree bytes free Y
+ * sma_nreq SMA allocator requests Y
+ * sma_nobj SMA outstanding allocations Y
+ * sma_nbytes SMA outstanding bytes Y
+ * sma_balloc SMA bytes allocated Y
+ * sma_bfree SMA bytes free Y
+ * sms_nreq SMS allocator requests Y
+ * sms_nobj SMS outstanding allocations Y
+ * sms_nbytes SMS outstanding bytes Y
+ * sms_balloc SMS bytes allocated Y
+ * sms_bfree SMS bytes freed Y
+ * backend_req Backend requests made N
+ * n_vcl N vcl total N
+ * n_vcl_avail N vcl available N
+ * n_vcl_discard N vcl discarded N
+ * n_purge N total active purges N
+ * n_purge_add N new purges added N
+ * n_purge_retire N old purges deleted N
+ * n_purge_obj_test N objects tested N
+ * n_purge_re_test N regexps tested against N
+ * n_purge_dups N duplicate purges removed N
+ * hcb_nolock HCB Lookups without lock Y
+ * hcb_lock HCB Lookups with lock Y
+ * hcb_insert HCB Inserts Y
+ * esi_parse Objects ESI parsed (unlock) Y
+ * esi_errors ESI parse errors (unlock) Y
+ */
#include "collectd.h"
#include "common.h"
#include "plugin.h"
+#include "configfile.h"
#include <varnish/varnishapi.h>
-#define USER_CONFIG_INIT {0, 0, 0, 0, 0}
+#define USER_CONFIG_INIT {0, 0, 0, 0, 0, 0, 0, 0, 0, 0}
#define SET_MONITOR_FLAG(name, flag, value) if((strcasecmp(name, key) == 0) && IS_TRUE(value)) user_config.flag = 1
/* {{{ user_config_s */
struct user_config_s {
- int monitor_cache;
- int monitor_connections;
- int monitor_esi;
- int monitor_backend;
- int monitor_fetch;
-};
-
-typedef struct user_config_s user_config_t; /* }}} */
+ char *instance;
-/* {{{ Configuration directives */
-static user_config_t user_config = USER_CONFIG_INIT;
-
-static const char *config_keys[] =
-{
- "MonitorCache",
- "MonitorConnections",
- "MonitorESI",
- "MonitorBackend",
- "MonitorFetch"
+ _Bool monitor_cache;
+ _Bool monitor_connections;
+ _Bool monitor_esi;
+ _Bool monitor_backend;
+ _Bool monitor_fetch;
+ _Bool monitor_hcb;
+ _Bool monitor_shm;
+ _Bool monitor_sma;
+ _Bool monitor_sms;
+ _Bool monitor_sm;
};
+typedef struct user_config_s user_config_t; /* }}} */
-static int config_keys_num = STATIC_ARRAY_SIZE (config_keys); /* }}} */
-
-static int varnish_config(const char *key, const char *value) /* {{{ */
-{
- SET_MONITOR_FLAG("MonitorCache", monitor_cache, value);
- SET_MONITOR_FLAG("MonitorConnections", monitor_connections, value);
- SET_MONITOR_FLAG("MonitorESI", monitor_esi, value);
- SET_MONITOR_FLAG("MonitorBackend", monitor_backend, value);
- SET_MONITOR_FLAG("MonitorFetch", monitor_fetch, value);
-
- return (0);
-} /* }}} */
+static _Bool have_instance = 0;
static void varnish_submit(const char *type, const char *type_instance, gauge_t value) /* {{{ */
{
plugin_dispatch_values(&vl);
} /* }}} */
-static void varnish_monitor(struct varnish_stats *VSL_stats) /* {{{ */
+static void varnish_monitor(const user_config_t *conf, struct varnish_stats *VSL_stats) /* {{{ */
{
- if(user_config.monitor_cache == 1)
+ if(conf->monitor_cache)
{
varnish_submit("varnish_cache_ratio", "cache_hit" , VSL_stats->cache_hit); /* Cache hits */
varnish_submit("varnish_cache_ratio", "cache_miss" , VSL_stats->cache_miss); /* Cache misses */
varnish_submit("varnish_cache_ratio", "cache_hitpass", VSL_stats->cache_hitpass); /* Cache hits for pass */
}
- if(user_config.monitor_connections == 1)
+ if(conf->monitor_connections)
{
varnish_submit("varnish_connections", "client_connections-accepted", VSL_stats->client_conn); /* Client connections accepted */
varnish_submit("varnish_connections", "client_connections-dropped" , VSL_stats->client_drop); /* Connection dropped, no sess */
varnish_submit("varnish_connections", "client_connections-received", VSL_stats->client_req); /* Client requests received */
}
- if(user_config.monitor_esi == 1)
+ if(conf->monitor_esi)
{
varnish_submit("varnish_esi", "esi_parsed", VSL_stats->esi_parse); /* Objects ESI parsed (unlock) */
varnish_submit("varnish_esi", "esi_errors", VSL_stats->esi_errors); /* ESI parse errors (unlock) */
}
- if(user_config.monitor_backend == 1)
+ if(conf->monitor_backend)
{
varnish_submit("varnish_backend_connections", "backend_connections-success" , VSL_stats->backend_conn); /* Backend conn. success */
varnish_submit("varnish_backend_connections", "backend_connections-not-attempted", VSL_stats->backend_unhealthy); /* Backend conn. not attempted */
varnish_submit("varnish_backend_connections", "backend_connections-unused" , VSL_stats->backend_unused); /* Backend conn. unused */
}
- if(user_config.monitor_fetch == 1)
+ if(conf->monitor_fetch)
{
varnish_submit("varnish_fetch", "fetch_head" , VSL_stats->fetch_head); /* Fetch head */
varnish_submit("varnish_fetch", "fetch_length" , VSL_stats->fetch_length); /* Fetch with length */
varnish_submit("varnish_fetch", "fetch_zero" , VSL_stats->fetch_zero); /* Fetch zero len */
varnish_submit("varnish_fetch", "fetch_failed" , VSL_stats->fetch_failed); /* Fetch failed */
}
+
+ if(conf->monitor_hcb)
+ {
+ varnish_submit("varnish_hcb", "hcb_nolock", VSL_stats->hcb_nolock); /* HCB Lookups without lock */
+ varnish_submit("varnish_hcb", "hcb_lock" , VSL_stats->hcb_lock); /* HCB Lookups with lock */
+ varnish_submit("varnish_hcb", "hcb_insert", VSL_stats->hcb_insert); /* HCB Inserts */
+ }
+
+ if(conf->monitor_shm)
+ {
+ varnish_submit("varnish_shm", "shm_records" , VSL_stats->shm_records); /* SHM records */
+ varnish_submit("varnish_shm", "shm_writes" , VSL_stats->shm_writes); /* SHM writes */
+ varnish_submit("varnish_shm", "shm_flushes" , VSL_stats->shm_flushes); /* SHM flushes due to overflow */
+ varnish_submit("varnish_shm", "shm_contention", VSL_stats->shm_cont); /* SHM MTX contention */
+ varnish_submit("varnish_shm", "shm_cycles" , VSL_stats->shm_cycles); /* SHM cycles through buffer */
+ }
+
+ if(conf->monitor_sma)
+ {
+ varnish_submit("varnish_sma", "sma_req" , VSL_stats->sma_nreq); /* SMA allocator requests */
+ varnish_submit("varnish_sma", "sma_nobj" , VSL_stats->sma_nobj); /* SMA outstanding allocations */
+ varnish_submit("varnish_sma", "sma_nbytes", VSL_stats->sma_nbytes); /* SMA outstanding bytes */
+ varnish_submit("varnish_sma", "sma_balloc", VSL_stats->sma_balloc); /* SMA bytes allocated */
+ varnish_submit("varnish_sma", "sma_bfree" , VSL_stats->sma_bfree); /* SMA bytes free */
+ }
+
+ if(conf->monitor_sms)
+ {
+ varnish_submit("varnish_sms", "sms_nreq" , VSL_stats->sms_nreq); /* SMS allocator requests */
+ varnish_submit("varnish_sms", "sms_nobj" , VSL_stats->sms_nobj); /* SMS outstanding allocations */
+ varnish_submit("varnish_sms", "sms_nbytes", VSL_stats->sms_nbytes); /* SMS outstanding bytes */
+ varnish_submit("varnish_sms", "sms_balloc", VSL_stats->sms_balloc); /* SMS bytes allocated */
+ varnish_submit("varnish_sms", "sms_bfree" , VSL_stats->sms_bfree); /* SMS bytes freed */
+ }
+
+ if(conf->monitor_sm)
+ {
+ varnish_submit("varnish_sm", "sm_nreq" , VSL_stats->sm_nreq); /* allocator requests */
+ varnish_submit("varnish_sm", "sm_nobj" , VSL_stats->sm_nobj); /* outstanding allocations */
+ varnish_submit("varnish_sm", "sm_balloc", VSL_stats->sm_balloc); /* bytes allocated */
+ varnish_submit("varnish_sm", "sm_bfree" , VSL_stats->sm_bfree); /* bytes free */
+ }
} /* }}} */
-static int varnish_read(void) /* {{{ */
+static int varnish_read(user_data_t *ud) /* {{{ */
{
struct varnish_stats *VSL_stats;
- const char *varnish_instance_name = NULL;
+ user_config_t *conf;
+
+ if ((ud == NULL) || (ud->data == NULL))
+ return (EINVAL);
- if ((VSL_stats = VSL_OpenStats(varnish_instance_name)) == NULL)
+ conf = ud->data;
+
+ VSL_stats = VSL_OpenStats(conf->instance);
+ if (VSL_stats == NULL)
{
ERROR("Varnish plugin : unable to load statistics");
return (-1);
}
- varnish_monitor(VSL_stats);
+ varnish_monitor(conf, VSL_stats);
return (0);
} /* }}} */
+static void varnish_config_free (void *ptr) /* {{{ */
+{
+ user_config_t *conf = ptr;
+
+ if (conf == NULL)
+ return;
+
+ sfree (conf->instance);
+ sfree (conf);
+} /* }}} */
+
+static int varnish_init (void) /* {{{ */
+{
+ user_config_t *conf;
+ user_data_t ud;
+
+ if (have_instance)
+ return (0);
+
+ conf = malloc (sizeof (*conf));
+ if (conf == NULL)
+ return (ENOMEM);
+ memset (conf, 0, sizeof (*conf));
+
+ /* Default settings: */
+ conf->instance = NULL;
+ conf->monitor_cache = 1;
+ conf->monitor_connections = 1;
+
+ ud.data = conf;
+ ud.free_func = varnish_config_free;
+
+ plugin_register_complex_read (/* group = */ "varnish",
+ /* name = */ "varnish/localhost",
+ /* callback = */ varnish_read,
+ /* interval = */ NULL,
+ /* user data = */ &ud);
+
+ return (0);
+} /* }}} int varnish_init */
+
+static int varnish_config_instance (const oconfig_item_t *ci) /* {{{ */
+{
+ user_config_t *conf;
+ user_data_t ud;
+ char callback_name[DATA_MAX_NAME_LEN];
+ int i;
+
+ conf = malloc (sizeof (*conf));
+ if (conf == NULL)
+ return (ENOMEM);
+ memset (conf, 0, sizeof (*conf));
+ conf->instance = NULL;
+
+ if (ci->values_num == 1)
+ {
+ int status;
+
+ status = cf_util_get_string (ci, &conf->instance);
+ if (status != 0)
+ {
+ sfree (conf);
+ return (status);
+ }
+ assert (conf->instance != NULL);
+
+ if (strcmp ("localhost", conf->instance) == 0)
+ {
+ sfree (conf->instance);
+ conf->instance = NULL;
+ }
+ }
+ else if (ci->values_num > 1)
+ {
+ WARNING ("Varnish plugin: \"Instance\" blocks accept only "
+ "one argument.");
+ return (EINVAL);
+ }
+
+ for (i = 0; i < ci->children_num; i++)
+ {
+ oconfig_item_t *child = ci->children + i;
+
+ if (strcasecmp ("MonitorCache", child->key) == 0)
+ cf_util_get_boolean (child, &conf->monitor_cache);
+ else if (strcasecmp ("MonitorConnections", child->key) == 0)
+ cf_util_get_boolean (child, &conf->monitor_connections);
+ else if (strcasecmp ("MonitorESI", child->key) == 0)
+ cf_util_get_boolean (child, &conf->monitor_esi);
+ else if (strcasecmp ("MonitorBackend", child->key) == 0)
+ cf_util_get_boolean (child, &conf->monitor_backend);
+ else if (strcasecmp ("MonitorFetch", child->key) == 0)
+ cf_util_get_boolean (child, &conf->monitor_fetch);
+ else if (strcasecmp ("MonitorHCB", child->key) == 0)
+ cf_util_get_boolean (child, &conf->monitor_hcb);
+ else if (strcasecmp ("MonitorSHM", child->key) == 0)
+ cf_util_get_boolean (child, &conf->monitor_shm);
+ else if (strcasecmp ("MonitorSMA", child->key) == 0)
+ cf_util_get_boolean (child, &conf->monitor_sma);
+ else if (strcasecmp ("MonitorSMS", child->key) == 0)
+ cf_util_get_boolean (child, &conf->monitor_sms);
+ else if (strcasecmp ("MonitorSM", child->key) == 0)
+ cf_util_get_boolean (child, &conf->monitor_sm);
+ else
+ {
+ WARNING ("Varnish plugin: Ignoring unknown "
+ "configuration option: \"%s\"",
+ child->key);
+ }
+ }
+
+ if (!conf->monitor_cache
+ && !conf->monitor_connections
+ && !conf->monitor_esi
+ && !conf->monitor_backend
+ && !conf->monitor_fetch
+ && !conf->monitor_hcb
+ && !conf->monitor_shm
+ && !conf->monitor_sma
+ && !conf->monitor_sms
+ && !conf->monitor_sm)
+ {
+ WARNING ("Varnish plugin: No metric has been configured for "
+ "instance \"%s\". Disabling this instance.",
+ (conf->instance == NULL) ? "localhost" : conf->instance);
+ return (EINVAL);
+ }
+
+ ssnprintf (callback_name, sizeof (callback_name), "varnish/%s",
+ (conf->instance == NULL) ? "localhost" : conf->instance);
+
+ ud.data = conf;
+ ud.free_func = varnish_config_free;
+
+ plugin_register_complex_read (/* group = */ "varnish",
+ /* name = */ callback_name,
+ /* callback = */ varnish_read,
+ /* interval = */ NULL,
+ /* user data = */ &ud);
+
+ have_instance = 1;
+
+ return (0);
+} /* }}} int varnish_config_instance */
+
+static int varnish_config (oconfig_item_t *ci) /* {{{ */
+{
+ int i;
+
+ for (i = 0; i < ci->children_num; i++)
+ {
+ oconfig_item_t *child = ci->children + i;
+
+ if (strcasecmp ("Instance", child->key) == 0)
+ varnish_config_instance (child);
+ else
+ {
+ WARNING ("Varnish plugin: Ignoring unknown "
+ "configuration option: \"%s\"",
+ child->key);
+ }
+ }
+
+ return (0);
+} /* }}} int varnish_config */
+
void module_register (void) /* {{{ */
{
- plugin_register_config("varnish", varnish_config, config_keys, config_keys_num);
- plugin_register_read("varnish", varnish_read);
+ plugin_register_complex_config("varnish", varnish_config);
+ plugin_register_init ("varnish", varnish_init);
} /* }}} */
/* vim: set sw=8 noet fdm=marker : */
projects / collectd.git / blobdiff