#include "configfile.h"
#include <pthread.h>
-#include <credis.h>
+#include <sys/time.h>
+#include <hiredis/hiredis.h>
#ifndef HOST_NAME_MAX
# define HOST_NAME_MAX _POSIX_HOST_NAME_MAX
#define REDIS_DEF_PORT 6379
#define REDIS_DEF_TIMEOUT 2000
#define MAX_REDIS_NODE_NAME 64
+#define MAX_REDIS_PASSWD_LENGTH 512
+#define MAX_REDIS_VAL_SIZE 256
+#define MAX_REDIS_QUERY 2048
/* Redis plugin configuration example:
*
* <Node "mynode">
* Host "localhost"
* Port "6379"
- * Timeout 2000
+ * Timeout 2
+ * Password "foobar"
* </Node>
* </Plugin>
*/
+struct redis_query_s;
+typedef struct redis_query_s redis_query_t;
+struct redis_query_s
+{
+ char query[MAX_REDIS_QUERY];
+ char type[DATA_MAX_NAME_LEN];
+ char instance[DATA_MAX_NAME_LEN];
+ redis_query_t *next;
+};
+
struct redis_node_s;
typedef struct redis_node_s redis_node_t;
struct redis_node_s
{
char name[MAX_REDIS_NODE_NAME];
char host[HOST_NAME_MAX];
- char passwd[HOST_NAME_MAX];
+ char passwd[MAX_REDIS_PASSWD_LENGTH];
int port;
- int timeout;
+ struct timeval timeout;
+ redis_query_t *queries;
redis_node_t *next;
};
return (0);
} /* }}} */
+static redis_query_t *redis_config_query (oconfig_item_t *ci) /* {{{ */
+{
+ redis_query_t *rq;
+ int status;
+ int i;
+
+ rq = calloc(1, sizeof(*rq));
+ if (rq == NULL) {
+ ERROR("redis plugin: calloca failed adding redis_query.");
+ return NULL;
+ }
+ status = cf_util_get_string_buffer(ci, rq->query, sizeof(rq->query));
+ if (status != 0)
+ goto err;
+
+ /*
+ * Default to a gauge type.
+ */
+ (void)strncpy(rq->type, "gauge", sizeof(rq->type));
+ (void)strncpy(rq->instance, rq->query, sizeof(rq->instance));
+ replace_special(rq->instance, sizeof(rq->instance));
+
+ for (i = 0; i < ci->children_num; i++) {
+ oconfig_item_t *option = ci->children + i;
+
+ if (strcasecmp("Type", option->key) == 0) {
+ status = cf_util_get_string_buffer(option, rq->type, sizeof(rq->type));
+ } else if (strcasecmp("Instance", option->key) == 0) {
+ status = cf_util_get_string_buffer(option, rq->instance, sizeof(rq->instance));
+ } else {
+ WARNING("redis plugin: unknown configuration option: %s", option->key);
+ status = -1;
+ }
+ if (status != 0)
+ goto err;
+ }
+ return rq;
+ err:
+ free(rq);
+ return NULL;
+} /* }}} */
+
static int redis_config_node (oconfig_item_t *ci) /* {{{ */
{
redis_node_t rn;
+ redis_query_t *rq;
int i;
int status;
+ int timeout;
memset (&rn, 0, sizeof (rn));
sstrncpy (rn.host, REDIS_DEF_HOST, sizeof (rn.host));
rn.port = REDIS_DEF_PORT;
- rn.timeout = REDIS_DEF_TIMEOUT;
+ rn.timeout.tv_usec = REDIS_DEF_TIMEOUT;
+ rn.queries = NULL;
status = cf_util_get_string_buffer (ci, rn.name, sizeof (rn.name));
if (status != 0)
status = 0;
}
}
+ else if (strcasecmp ("Query", option->key) == 0)
+ {
+ rq = redis_config_query(option);
+ if (rq == NULL) {
+ status =1;
+ } else {
+ rq->next = rn.queries;
+ rn.queries = rq;
+ }
+ }
else if (strcasecmp ("Timeout", option->key) == 0)
- status = cf_util_get_int (option, &rn.timeout);
+ {
+ status = cf_util_get_int (option, &timeout);
+ if (status == 0) rn.timeout.tv_usec = timeout;
+ }
else if (strcasecmp ("Password", option->key) == 0)
status = cf_util_get_string_buffer (option, rn.passwd, sizeof (rn.passwd));
else
} /* }}} */
__attribute__ ((nonnull(2)))
-static void redis_submit_g (char *plugin_instance,
- const char *type, const char *type_instance,
- gauge_t value) /* {{{ */
-{
- value_t values[1];
- value_list_t vl = VALUE_LIST_INIT;
-
- values[0].gauge = value;
-
- vl.values = values;
- vl.values_len = 1;
- sstrncpy (vl.host, hostname_g, sizeof (vl.host));
- sstrncpy (vl.plugin, "redis", sizeof (vl.plugin));
- if (plugin_instance != NULL)
- sstrncpy (vl.plugin_instance, plugin_instance,
- sizeof (vl.plugin_instance));
- sstrncpy (vl.type, type, sizeof (vl.type));
- if (type_instance != NULL)
- sstrncpy (vl.type_instance, type_instance,
- sizeof (vl.type_instance));
-
- plugin_dispatch_values (&vl);
-} /* }}} */
-
- __attribute__ ((nonnull(2)))
-static void redis_submit_d (char *plugin_instance,
+static void redis_submit (char *plugin_instance,
const char *type, const char *type_instance,
- derive_t value) /* {{{ */
+ value_t value) /* {{{ */
{
value_t values[1];
value_list_t vl = VALUE_LIST_INIT;
- values[0].derive = value;
+ values[0] = value;
vl.values = values;
vl.values_len = 1;
static int redis_init (void) /* {{{ */
{
- redis_node_t rn = { "default", REDIS_DEF_HOST, REDIS_DEF_PASSWD,
- REDIS_DEF_PORT, REDIS_DEF_TIMEOUT, /* next = */ NULL };
+ redis_node_t rn = {
+ .name = "default",
+ .host = REDIS_DEF_HOST,
+ .port = REDIS_DEF_PORT,
+ .timeout.tv_sec = 0,
+ .timeout.tv_usec = REDIS_DEF_TIMEOUT,
+ .next = NULL
+};
if (nodes_head == NULL)
redis_node_add (&rn);
return (0);
} /* }}} int redis_init */
+int redis_handle_info (char *node, char const *info_line, char const *type, char const *type_instance, char const *field_name, int ds_type) /* {{{ */
+{
+ char *str = strstr (info_line, field_name);
+ static char buf[MAX_REDIS_VAL_SIZE];
+ value_t val;
+ if (str)
+ {
+ int i;
+
+ str += strlen (field_name) + 1; /* also skip the ':' */
+ for(i=0;(*str && (isdigit(*str) || *str == '.'));i++,str++)
+ buf[i] = *str;
+ buf[i] ='\0';
+
+ if(parse_value (buf, &val, ds_type) == -1)
+ {
+ WARNING ("redis plugin: Unable to parse field `%s'.", field_name);
+ return (-1);
+ }
+
+ redis_submit (node, type, type_instance, val);
+ return (0);
+ }
+ return (-1);
+
+} /* }}} int redis_handle_info */
+
+int redis_handle_query (redisContext *rh, redis_node_t *rn, redis_query_t *rq) /* {{{ */
+{
+ redisReply *rr;
+ const data_set_t *ds;
+ value_t val;
+
+ ds = plugin_get_ds (rq->type);
+ if (!ds) {
+ ERROR ("redis plugin: DataSet `%s' not defined.", rq->type);
+ return (-1);
+ }
+
+ if (ds->ds_num != 1) {
+ ERROR ("redis plugin: DS `%s' has too many types.", rq->type);
+ return (-1);
+ }
+
+ if ((rr = redisCommand(rh, rq->query)) == NULL) {
+ WARNING("redis plugin: unable to carry out query `%s'.", rq->query);
+ return (-1);
+ }
+
+ switch (rr->type) {
+ case REDIS_REPLY_INTEGER:
+ switch (ds->ds[0].type) {
+ case DS_TYPE_COUNTER:
+ val.counter = (counter_t)rr->integer;
+ break;
+ case DS_TYPE_GAUGE:
+ val.gauge = (gauge_t)rr->integer;
+ break;
+ case DS_TYPE_DERIVE:
+ val.gauge = (derive_t)rr->integer;
+ break;
+ case DS_TYPE_ABSOLUTE:
+ val.gauge = (absolute_t)rr->integer;
+ break;
+ }
+ break;
+ case REDIS_REPLY_STRING:
+ if (parse_value (rr->str, &val, ds->ds[0].type) == -1) {
+ WARNING("redis plugin: Unable to parse field `%s'.", rq->type);
+ freeReplyObject (rr);
+ return (-1);
+ }
+ break;
+ default:
+ WARNING("redis plugin: Cannot coerce redis type.");
+ freeReplyObject(rr);
+ return (-1);
+ }
+
+ redis_submit(rn->name, rq->type, (strlen(rq->instance) >0)?rq->instance:NULL, val);
+ freeReplyObject (rr);
+ return 0;
+} /* }}} int redis_handle_info */
+
static int redis_read (void) /* {{{ */
{
redis_node_t *rn;
+ redis_query_t *rq;
for (rn = nodes_head; rn != NULL; rn = rn->next)
{
- REDIS rh;
- REDIS_INFO info;
-
- int status;
+ redisContext *rh;
+ redisReply *rr;
DEBUG ("redis plugin: querying info from node `%s' (%s:%d).", rn->name, rn->host, rn->port);
- rh = credis_connect (rn->host, rn->port, rn->timeout);
+ rh = redisConnectWithTimeout ((char *)rn->host, rn->port, rn->timeout);
if (rh == NULL)
{
ERROR ("redis plugin: unable to connect to node `%s' (%s:%d).", rn->name, rn->host, rn->port);
if (strlen (rn->passwd) > 0)
{
DEBUG ("redis plugin: authenticanting node `%s' passwd(%s).", rn->name, rn->passwd);
- status = credis_auth(rh, rn->passwd);
- if (status != 0)
+ rr = redisCommand (rh, "AUTH %s", rn->passwd);
+
+ if (rr == NULL || rr->type != REDIS_REPLY_STATUS)
{
WARNING ("redis plugin: unable to authenticate on node `%s'.", rn->name);
- credis_close (rh);
+ if (rr != NULL)
+ freeReplyObject (rr);
+
+ redisFree (rh);
continue;
}
}
- memset (&info, 0, sizeof (info));
- status = credis_info (rh, &info);
- if (status != 0)
+ if ((rr = redisCommand(rh, "INFO")) == NULL)
{
- WARNING ("redis plugin: unable to get info from node `%s'.", rn->name);
- credis_close (rh);
+ WARNING ("redis plugin: unable to connect to node `%s'.", rn->name);
+ redisFree (rh);
continue;
}
- /* typedef struct _cr_info {
- * char redis_version[CREDIS_VERSION_STRING_SIZE];
- * int bgsave_in_progress;
- * int connected_clients;
- * int connected_slaves;
- * unsigned int used_memory;
- * long long changes_since_last_save;
- * int last_save_time;
- * long long total_connections_received;
- * long long total_commands_processed;
- * int uptime_in_seconds;
- * int uptime_in_days;
- * int role;
- * } REDIS_INFO; */
-
- DEBUG ("redis plugin: received info from node `%s': connected_clients = %d; "
- "connected_slaves = %d; used_memory = %lu; changes_since_last_save = %lld; "
- "bgsave_in_progress = %d; total_connections_received = %lld; "
- "total_commands_processed = %lld; uptime_in_seconds = %ld", rn->name,
- info.connected_clients, info.connected_slaves, info.used_memory,
- info.changes_since_last_save, info.bgsave_in_progress,
- info.total_connections_received, info.total_commands_processed,
- info.uptime_in_seconds);
-
- redis_submit_g (rn->name, "current_connections", "clients", info.connected_clients);
- redis_submit_g (rn->name, "current_connections", "slaves", info.connected_slaves);
- redis_submit_g (rn->name, "memory", "used", info.used_memory);
- redis_submit_g (rn->name, "volatile_changes", NULL, info.changes_since_last_save);
- redis_submit_d (rn->name, "total_connections", NULL, info.total_connections_received);
- redis_submit_d (rn->name, "total_operations", NULL, info.total_commands_processed);
-
- credis_close (rh);
+ redis_handle_info (rn->name, rr->str, "uptime", NULL, "uptime_in_seconds", DS_TYPE_GAUGE);
+ redis_handle_info (rn->name, rr->str, "current_connections", "clients", "connected_clients", DS_TYPE_GAUGE);
+ redis_handle_info (rn->name, rr->str, "blocked_clients", NULL, "blocked_clients", DS_TYPE_GAUGE);
+ redis_handle_info (rn->name, rr->str, "memory", NULL, "used_memory", DS_TYPE_GAUGE);
+ redis_handle_info (rn->name, rr->str, "memory_lua", NULL, "used_memory_lua", DS_TYPE_GAUGE);
+ /* changes_since_last_save: Deprecated in redis version 2.6 and above */
+ redis_handle_info (rn->name, rr->str, "volatile_changes", NULL, "changes_since_last_save", DS_TYPE_GAUGE);
+ redis_handle_info (rn->name, rr->str, "total_connections", NULL, "total_connections_received", DS_TYPE_DERIVE);
+ redis_handle_info (rn->name, rr->str, "total_operations", NULL, "total_commands_processed", DS_TYPE_DERIVE);
+ redis_handle_info (rn->name, rr->str, "expired_keys", NULL, "expired_keys", DS_TYPE_GAUGE);
+ redis_handle_info (rn->name, rr->str, "pubsub", "channels", "pubsub_channels", DS_TYPE_GAUGE);
+ redis_handle_info (rn->name, rr->str, "pubsub", "patterns", "pubsub_patterns", DS_TYPE_GAUGE);
+ redis_handle_info (rn->name, rr->str, "current_connections", "slaves", "connected_slaves", DS_TYPE_GAUGE);
+
+ freeReplyObject (rr);
+
+ for (rq = rn->queries; rq != NULL; rq = rq->next)
+ redis_handle_query(rh, rn, rq);
+
+ redisFree (rh);
}
return 0;
projects / collectd.git / blobdiff