int
pf_read(void)
{
struct pf_status status;
int pfdev = -1;
int i;
char *cnames[] = PFRES_NAMES;
char *lnames[] = LCNT_NAMES;
char *names[] = { "searches", "inserts", "removals" };
if ((pfdev = open(pf_device, O_RDONLY)) == -1) {
ERROR("unable to open %s", pf_device);
return (-1);
}
if (ioctl(pfdev, DIOCGETSTATUS, &status) == -1) {
ERROR("DIOCGETSTATUS: %i", pfdev);
close(pfdev);
return (-1);
}
close(pfdev);
for (i = 0; i < PFRES_MAX; i++)
submit_counter("pf_counters", cnames[i], status.counters[i], 0);
for (i = 0; i < LCNT_MAX; i++)
submit_counter("pf_limits", lnames[i], status.lcounters[i], 0);
for (i = 0; i < FCNT_MAX; i++)
submit_counter("pf_state", names[i], status.fcounters[i], 0);
for (i = 0; i < SCNT_MAX; i++)
submit_counter("pf_source", names[i], status.scounters[i], 0);
submit_counter("pf_states", "current", status.states, 1);
return (0);
}
static int apache_read_host (user_data_t *user_data) /* {{{ */
{
int i;
char *ptr;
char *saveptr;
char *lines[16];
int lines_num = 0;
char *fields[4];
int fields_num;
apache_t *st;
st = user_data->data;
assert (st->url != NULL);
/* (Assured by `config_add') */
if (st->curl == NULL)
{
int status;
status = init_host (st);
if (status != 0)
return (-1);
}
assert (st->curl != NULL);
st->apache_buffer_fill = 0;
if (curl_easy_perform (st->curl) != 0)
{
ERROR ("apache: curl_easy_perform failed: %s",
st->apache_curl_error);
return (-1);
}
/* fallback - server_type to apache if not set at this time */
if (st->server_type == -1)
{
WARNING ("apache plugin: Unable to determine server software "
"automatically. Will assume Apache.");
st->server_type = APACHE;
}
ptr = st->apache_buffer;
saveptr = NULL;
while ((lines[lines_num] = strtok_r (ptr, "\n\r", &saveptr)) != NULL)
{
ptr = NULL;
lines_num++;
if (lines_num >= 16)
break;
}
for (i = 0; i < lines_num; i++)
{
fields_num = strsplit (lines[i], fields, 4);
if (fields_num == 3)
{
if ((strcmp (fields[0], "Total") == 0)
&& (strcmp (fields[1], "Accesses:") == 0))
submit_counter ("apache_requests", "",
atoll (fields[2]), st);
else if ((strcmp (fields[0], "Total") == 0)
&& (strcmp (fields[1], "kBytes:") == 0))
submit_counter ("apache_bytes", "",
1024LL * atoll (fields[2]), st);
}
else if (fields_num == 2)
{
if (strcmp (fields[0], "Scoreboard:") == 0)
submit_scoreboard (fields[1], st);
else if (strcmp (fields[0], "BusyServers:") == 0)
submit_gauge ("apache_connections", NULL, atol (fields[1]), st);
}
}
st->apache_buffer_fill = 0;
return (0);
} /* }}} int apache_read_host */
static int memcached_read (void) /* {{{ */
{
char buf[1024];
char *fields[3];
char *ptr;
char *line;
char *saveptr;
int fields_num;
gauge_t bytes_used = NAN;
gauge_t bytes_total = NAN;
gauge_t hits = NAN;
gauge_t gets = NAN;
counter_t rusage_user = 0;
counter_t rusage_syst = 0;
counter_t octets_rx = 0;
counter_t octets_tx = 0;
/* get data from daemon */
if (memcached_query_daemon (buf, sizeof (buf)) < 0) {
return -1;
}
#define FIELD_IS(cnst) \
(((sizeof(cnst) - 1) == name_len) && (strcmp (cnst, fields[1]) == 0))
ptr = buf;
saveptr = NULL;
while ((line = strtok_r (ptr, "\n\r", &saveptr)) != NULL)
{
int name_len;
ptr = NULL;
fields_num = strsplit(line, fields, 3);
if (fields_num != 3)
continue;
name_len = strlen(fields[1]);
if (name_len == 0)
continue;
/*
* For an explanation on these fields please refer to
* <http://code.sixapart.com/svn/memcached/trunk/server/doc/protocol.txt>
*/
/*
* CPU time consumed by the memcached process
*/
if (FIELD_IS ("rusage_user"))
{
rusage_user = atoll (fields[2]);
}
else if (FIELD_IS ("rusage_system"))
{
rusage_syst = atoll(fields[2]);
}
/*
* Number of threads of this instance
*/
else if (FIELD_IS ("threads"))
{
submit_gauge2 ("ps_count", NULL, NAN, atof (fields[2]));
}
/*
* Number of items stored
*/
else if (FIELD_IS ("curr_items"))
{
submit_gauge ("memcached_items", "current", atof (fields[2]));
}
/*
* Number of bytes used and available (total - used)
*/
else if (FIELD_IS ("bytes"))
{
bytes_used = atof (fields[2]);
}
else if (FIELD_IS ("limit_maxbytes"))
{
bytes_total = atof(fields[2]);
}
/*
* Connections
*/
else if (FIELD_IS ("curr_connections"))
{
submit_gauge ("memcached_connections", "current", atof (fields[2]));
}
/*
* Commands
*/
else if ((name_len > 4) && (strncmp (fields[1], "cmd_", 4) == 0))
{
const char *name = fields[1] + 4;
submit_counter ("memcached_command", name, atoll (fields[2]));
if (strcmp (name, "get") == 0)
gets = atof (fields[2]);
}
/*
* Operations on the cache, i. e. cache hits, cache misses and evictions of items
*/
else if (FIELD_IS ("get_hits"))
{
submit_counter ("memcached_ops", "hits", atoll (fields[2]));
hits = atof (fields[2]);
}
else if (FIELD_IS ("get_misses"))
{
submit_counter ("memcached_ops", "misses", atoll (fields[2]));
}
else if (FIELD_IS ("evictions"))
{
submit_counter ("memcached_ops", "evictions", atoll (fields[2]));
}
/*
* Network traffic
*/
else if (FIELD_IS ("bytes_read"))
{
octets_rx = atoll (fields[2]);
}
else if (FIELD_IS ("bytes_written"))
{
octets_tx = atoll (fields[2]);
}
} /* while ((line = strtok_r (ptr, "\n\r", &saveptr)) != NULL) */
if (!isnan (bytes_used) && !isnan (bytes_total) && (bytes_used <= bytes_total))
submit_gauge2 ("df", "cache", bytes_used, bytes_total - bytes_used);
if ((rusage_user != 0) || (rusage_syst != 0))
submit_counter2 ("ps_cputime", NULL, rusage_user, rusage_syst);
if ((octets_rx != 0) || (octets_tx != 0))
submit_counter2 ("memcached_octets", NULL, octets_rx, octets_tx);
if (!isnan (gets) && !isnan (hits))
{
gauge_t rate = NAN;
if (gets != 0.0)
rate = 100.0 * hits / gets;
submit_gauge ("percent", "hitratio", rate);
}
return 0;
}
