src/plugin_proc.c

   1 #include <pthread.h>
   2 #include <sys/time.h>
   3 #include <sys/resource.h>
   4 #include <strings.h>
   5 #include <unistd.h>
   6
   7 #include "global_statistics.h"
   8 #include "common.h"
   9 #include "config.h"
  10 #include "log.h"
  11 #include "rrd.h"
  12 #include "plugin_proc.h"
  13
  14 void *proc_main(void *ptr)
  15 {
  16         if(ptr) { ; }
  17
  18         if(pthread_setcanceltype(PTHREAD_CANCEL_DEFERRED, NULL) != 0)
  19                 error("Cannot set pthread cancel type to DEFERRED.");
  20
  21         if(pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL) != 0)
  22                 error("Cannot set pthread cancel state to ENABLE.");
  23
  24         struct rusage me, me_last;
  25         struct timeval last, now;
  26
  27         gettimeofday(&last, NULL);
  28         last.tv_sec -= update_every;
  29
  30         // disable (by default) various interface that are not needed
  31         config_get_boolean("plugin:proc:/proc/net/dev", "interface lo", 0);
  32         config_get_boolean("plugin:proc:/proc/net/dev", "interface fireqos_monitor", 0);
  33
  34         // when ZERO, attempt to do it
  35         int vdo_proc_net_dev                    = !config_get_boolean("plugin:proc", "/proc/net/dev", 1);
  36         int vdo_proc_diskstats                  = !config_get_boolean("plugin:proc", "/proc/diskstats", 1);
  37         int vdo_proc_net_snmp                   = !config_get_boolean("plugin:proc", "/proc/net/snmp", 1);
  38         int vdo_proc_net_netstat                = !config_get_boolean("plugin:proc", "/proc/net/netstat", 1);
  39         int vdo_proc_net_stat_conntrack = !config_get_boolean("plugin:proc", "/proc/net/stat/conntrack", 1);
  40         int vdo_proc_net_ip_vs_stats    = !config_get_boolean("plugin:proc", "/proc/net/ip_vs/stats", 1);
  41         int vdo_proc_stat                               = !config_get_boolean("plugin:proc", "/proc/stat", 1);
  42         int vdo_proc_meminfo                    = !config_get_boolean("plugin:proc", "/proc/meminfo", 1);
  43         int vdo_proc_vmstat                     = !config_get_boolean("plugin:proc", "/proc/vmstat", 1);
  44         int vdo_proc_net_rpc_nfsd               = !config_get_boolean("plugin:proc", "/proc/net/rpc/nfsd", 1);
  45         int vdo_cpu_netdata                     = !config_get_boolean("plugin:proc", "netdata server resources", 1);
  46
  47         RRD_STATS *stcpu = NULL, *stclients = NULL, *streqs = NULL, *stbytes = NULL;
  48
  49         gettimeofday(&last, NULL);
  50         getrusage(RUSAGE_SELF, &me_last);
  51
  52         unsigned long long usec = 0, susec = 0;
  53         for(;1;) {
  54
  55                 // BEGIN -- the job to be done
  56
  57                 if(!vdo_proc_net_dev) {
  58                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling do_proc_net_dev().");
  59                         vdo_proc_net_dev = do_proc_net_dev(update_every, usec+susec);
  60                 }
  61                 if(!vdo_proc_diskstats) {
  62                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling do_proc_diskstats().");
  63                         vdo_proc_diskstats = do_proc_diskstats(update_every, usec+susec);
  64                 }
  65                 if(!vdo_proc_net_snmp) {
  66                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling do_proc_net_snmp().");
  67                         vdo_proc_net_snmp = do_proc_net_snmp(update_every, usec+susec);
  68                 }
  69
  70                 if(!vdo_proc_net_netstat) {
  71                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling do_proc_net_netstat().");
  72                         vdo_proc_net_netstat = do_proc_net_netstat(update_every, usec+susec);
  73                 }
  74
  75                 if(!vdo_proc_net_stat_conntrack) {
  76                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling do_proc_net_stat_conntrack().");
  77                         vdo_proc_net_stat_conntrack     = do_proc_net_stat_conntrack(update_every, usec+susec);
  78                 }
  79
  80                 if(!vdo_proc_net_ip_vs_stats) {
  81                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling vdo_proc_net_ip_vs_stats().");
  82                         vdo_proc_net_ip_vs_stats = do_proc_net_ip_vs_stats(update_every, usec+susec);
  83                 }
  84
  85                 if(!vdo_proc_stat) {
  86                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling do_proc_stat().");
  87                         vdo_proc_stat = do_proc_stat(update_every, usec+susec);
  88                 }
  89
  90                 if(!vdo_proc_meminfo) {
  91                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling vdo_proc_meminfo().");
  92                         vdo_proc_meminfo = do_proc_meminfo(update_every, usec+susec);
  93                 }
  94
  95                 if(!vdo_proc_vmstat) {
  96                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling vdo_proc_vmstat().");
  97                         vdo_proc_vmstat = do_proc_vmstat(update_every, usec+susec);
  98                 }
  99
 100                 if(!vdo_proc_net_rpc_nfsd) {
 101                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling do_proc_net_rpc_nfsd().");
 102                         vdo_proc_net_rpc_nfsd = do_proc_net_rpc_nfsd(update_every, usec+susec);
 103                 }
 104
 105                 // END -- the job is done
 106
 107                 // find the time to sleep in order to wait exactly update_every seconds
 108                 gettimeofday(&now, NULL);
 109                 usec = usecdiff(&now, &last) - susec;
 110                 debug(D_PROCNETDEV_LOOP, "PROCNETDEV: last loop took %llu usec (worked for %llu, sleeped for %llu).", usec + susec, usec, susec);
 111
 112                 if(usec < (update_every * 1000000ULL / 2ULL)) susec = (update_every * 1000000ULL) - usec;
 113                 else susec = update_every * 1000000ULL / 2ULL;
 114
 115                 // --------------------------------------------------------------------
 116
 117                 if(!vdo_cpu_netdata && getrusage(RUSAGE_SELF, &me) == 0) {
 118
 119                         unsigned long long cpuuser = me.ru_utime.tv_sec * 1000000ULL + me.ru_utime.tv_usec;
 120                         unsigned long long cpusyst = me.ru_stime.tv_sec * 1000000ULL + me.ru_stime.tv_usec;
 121
 122                         if(!stcpu) stcpu = rrd_stats_find("netdata.server_cpu");
 123                         if(!stcpu) {
 124                                 stcpu = rrd_stats_create("netdata", "server_cpu", NULL, "netdata", "NetData CPU usage", "milliseconds/s", 9999, update_every, CHART_TYPE_STACKED);
 125
 126                                 rrd_stats_dimension_add(stcpu, "user",  NULL,  1, 1000 * update_every, RRD_DIMENSION_INCREMENTAL);
 127                                 rrd_stats_dimension_add(stcpu, "system", NULL, 1, 1000 * update_every, RRD_DIMENSION_INCREMENTAL);
 128                         }
 129                         else rrd_stats_next(stcpu);
 130
 131                         rrd_stats_dimension_set(stcpu, "user", cpuuser);
 132                         rrd_stats_dimension_set(stcpu, "system", cpusyst);
 133                         rrd_stats_done(stcpu);
 134
 135                         bcopy(&me, &me_last, sizeof(struct rusage));
 136
 137                         // ----------------------------------------------------------------
 138
 139                         if(!stclients) stclients = rrd_stats_find("netdata.clients");
 140                         if(!stclients) {
 141                                 stclients = rrd_stats_create("netdata", "clients", NULL, "netdata", "NetData Web Clients", "connected clients", 11000, update_every, CHART_TYPE_LINE);
 142
 143                                 rrd_stats_dimension_add(stclients, "clients",  NULL,  1, 1, RRD_DIMENSION_ABSOLUTE);
 144                         }
 145                         else rrd_stats_next(stclients);
 146
 147                         rrd_stats_dimension_set(stclients, "clients", global_statistics.connected_clients);
 148                         rrd_stats_done(stclients);
 149
 150                         // ----------------------------------------------------------------
 151
 152                         if(!streqs) streqs = rrd_stats_find("netdata.requests");
 153                         if(!streqs) {
 154                                 streqs = rrd_stats_create("netdata", "requests", NULL, "netdata", "NetData Web Requests", "requests/s", 12000, update_every, CHART_TYPE_LINE);
 155
 156                                 rrd_stats_dimension_add(streqs, "requests",  NULL,  1, 1 * update_every, RRD_DIMENSION_INCREMENTAL);
 157                         }
 158                         else rrd_stats_next(streqs);
 159
 160                         rrd_stats_dimension_set(streqs, "requests", global_statistics.web_requests);
 161                         rrd_stats_done(streqs);
 162
 163                         // ----------------------------------------------------------------
 164
 165                         if(!stbytes) stbytes = rrd_stats_find("netdata.net");
 166                         if(!stbytes) {
 167                                 stbytes = rrd_stats_create("netdata", "net", NULL, "netdata", "NetData Network Traffic", "kilobits/s", 13000, update_every, CHART_TYPE_AREA);
 168
 169                                 rrd_stats_dimension_add(stbytes, "in",  NULL,  8, 1024 * update_every, RRD_DIMENSION_INCREMENTAL);
 170                                 rrd_stats_dimension_add(stbytes, "out",  NULL,  -8, 1024 * update_every, RRD_DIMENSION_INCREMENTAL);
 171                         }
 172                         else rrd_stats_next(stbytes);
 173
 174                         rrd_stats_dimension_set(stbytes, "in", global_statistics.bytes_received);
 175                         rrd_stats_dimension_set(stbytes, "out", global_statistics.bytes_sent);
 176                         rrd_stats_done(stbytes);
 177                 }
 178
 179                 usleep(susec);
 180
 181                 // copy current to last
 182                 bcopy(&now, &last, sizeof(struct timeval));
 183         }
 184
 185         return NULL;
 186 }