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 -= rrd_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_proc_sys_kernel_random_entropy_avail    = !config_get_boolean("plugin:proc", "/proc/sys/kernel/random/entropy_avail", 1);
  46         int vdo_proc_interrupts                 = !config_get_boolean("plugin:proc", "/proc/interrupts", 1);
  47         int vdo_cpu_netdata                     = !config_get_boolean("plugin:proc", "netdata server resources", 1);
  48
  49         RRDSET *stcpu = NULL, *stclients = NULL, *streqs = NULL, *stbytes = NULL;
  50
  51         gettimeofday(&last, NULL);
  52         getrusage(RUSAGE_SELF, &me_last);
  53
  54         unsigned long long usec = 0, susec = 0;
  55         for(;1;) {
  56
  57                 // BEGIN -- the job to be done
  58
  59                 if(!vdo_proc_interrupts) {
  60                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling do_proc_interrupts().");
  61                         vdo_proc_interrupts = do_proc_interrupts(rrd_update_every, usec+susec);
  62                 }
  63                 if(!vdo_proc_sys_kernel_random_entropy_avail) {
  64                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling do_proc_sys_kernel_random_entropy_avail().");
  65                         vdo_proc_sys_kernel_random_entropy_avail = do_proc_sys_kernel_random_entropy_avail(rrd_update_every, usec+susec);
  66                 }
  67                 if(!vdo_proc_net_dev) {
  68                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling do_proc_net_dev().");
  69                         vdo_proc_net_dev = do_proc_net_dev(rrd_update_every, usec+susec);
  70                 }
  71                 if(!vdo_proc_diskstats) {
  72                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling do_proc_diskstats().");
  73                         vdo_proc_diskstats = do_proc_diskstats(rrd_update_every, usec+susec);
  74                 }
  75                 if(!vdo_proc_net_snmp) {
  76                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling do_proc_net_snmp().");
  77                         vdo_proc_net_snmp = do_proc_net_snmp(rrd_update_every, usec+susec);
  78                 }
  79
  80                 if(!vdo_proc_net_netstat) {
  81                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling do_proc_net_netstat().");
  82                         vdo_proc_net_netstat = do_proc_net_netstat(rrd_update_every, usec+susec);
  83                 }
  84
  85                 if(!vdo_proc_net_stat_conntrack) {
  86                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling do_proc_net_stat_conntrack().");
  87                         vdo_proc_net_stat_conntrack     = do_proc_net_stat_conntrack(rrd_update_every, usec+susec);
  88                 }
  89
  90                 if(!vdo_proc_net_ip_vs_stats) {
  91                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling vdo_proc_net_ip_vs_stats().");
  92                         vdo_proc_net_ip_vs_stats = do_proc_net_ip_vs_stats(rrd_update_every, usec+susec);
  93                 }
  94
  95                 if(!vdo_proc_stat) {
  96                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling do_proc_stat().");
  97                         vdo_proc_stat = do_proc_stat(rrd_update_every, usec+susec);
  98                 }
  99
 100                 if(!vdo_proc_meminfo) {
 101                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling vdo_proc_meminfo().");
 102                         vdo_proc_meminfo = do_proc_meminfo(rrd_update_every, usec+susec);
 103                 }
 104
 105                 if(!vdo_proc_vmstat) {
 106                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling vdo_proc_vmstat().");
 107                         vdo_proc_vmstat = do_proc_vmstat(rrd_update_every, usec+susec);
 108                 }
 109
 110                 if(!vdo_proc_net_rpc_nfsd) {
 111                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling do_proc_net_rpc_nfsd().");
 112                         vdo_proc_net_rpc_nfsd = do_proc_net_rpc_nfsd(rrd_update_every, usec+susec);
 113                 }
 114
 115                 // END -- the job is done
 116
 117                 // find the time to sleep in order to wait exactly update_every seconds
 118                 gettimeofday(&now, NULL);
 119                 usec = usecdiff(&now, &last) - susec;
 120                 debug(D_PROCNETDEV_LOOP, "PROCNETDEV: last loop took %llu usec (worked for %llu, sleeped for %llu).", usec + susec, usec, susec);
 121
 122                 if(usec < (rrd_update_every * 1000000ULL / 2ULL)) susec = (rrd_update_every * 1000000ULL) - usec;
 123                 else susec = rrd_update_every * 1000000ULL / 2ULL;
 124
 125                 // --------------------------------------------------------------------
 126
 127                 if(!vdo_cpu_netdata && getrusage(RUSAGE_SELF, &me) == 0) {
 128
 129                         unsigned long long cpuuser = me.ru_utime.tv_sec * 1000000ULL + me.ru_utime.tv_usec;
 130                         unsigned long long cpusyst = me.ru_stime.tv_sec * 1000000ULL + me.ru_stime.tv_usec;
 131
 132                         if(!stcpu) stcpu = rrdset_find("netdata.server_cpu");
 133                         if(!stcpu) {
 134                                 stcpu = rrdset_create("netdata", "server_cpu", NULL, "netdata", "NetData CPU usage", "milliseconds/s", 9999, rrd_update_every, RRDSET_TYPE_STACKED);
 135
 136                                 rrddim_add(stcpu, "user",  NULL,  1, 1000 * rrd_update_every, RRDDIM_INCREMENTAL);
 137                                 rrddim_add(stcpu, "system", NULL, 1, 1000 * rrd_update_every, RRDDIM_INCREMENTAL);
 138                         }
 139                         else rrdset_next(stcpu);
 140
 141                         rrddim_set(stcpu, "user", cpuuser);
 142                         rrddim_set(stcpu, "system", cpusyst);
 143                         rrdset_done(stcpu);
 144
 145                         bcopy(&me, &me_last, sizeof(struct rusage));
 146
 147                         // ----------------------------------------------------------------
 148
 149                         if(!stclients) stclients = rrdset_find("netdata.clients");
 150                         if(!stclients) {
 151                                 stclients = rrdset_create("netdata", "clients", NULL, "netdata", "NetData Web Clients", "connected clients", 11000, rrd_update_every, RRDSET_TYPE_LINE);
 152
 153                                 rrddim_add(stclients, "clients",  NULL,  1, 1, RRDDIM_ABSOLUTE);
 154                         }
 155                         else rrdset_next(stclients);
 156
 157                         rrddim_set(stclients, "clients", global_statistics.connected_clients);
 158                         rrdset_done(stclients);
 159
 160                         // ----------------------------------------------------------------
 161
 162                         if(!streqs) streqs = rrdset_find("netdata.requests");
 163                         if(!streqs) {
 164                                 streqs = rrdset_create("netdata", "requests", NULL, "netdata", "NetData Web Requests", "requests/s", 12000, rrd_update_every, RRDSET_TYPE_LINE);
 165
 166                                 rrddim_add(streqs, "requests",  NULL,  1, 1 * rrd_update_every, RRDDIM_INCREMENTAL);
 167                         }
 168                         else rrdset_next(streqs);
 169
 170                         rrddim_set(streqs, "requests", global_statistics.web_requests);
 171                         rrdset_done(streqs);
 172
 173                         // ----------------------------------------------------------------
 174
 175                         if(!stbytes) stbytes = rrdset_find("netdata.net");
 176                         if(!stbytes) {
 177                                 stbytes = rrdset_create("netdata", "net", NULL, "netdata", "NetData Network Traffic", "kilobits/s", 13000, rrd_update_every, RRDSET_TYPE_AREA);
 178
 179                                 rrddim_add(stbytes, "in",  NULL,  8, 1024 * rrd_update_every, RRDDIM_INCREMENTAL);
 180                                 rrddim_add(stbytes, "out",  NULL,  -8, 1024 * rrd_update_every, RRDDIM_INCREMENTAL);
 181                         }
 182                         else rrdset_next(stbytes);
 183
 184                         rrddim_set(stbytes, "in", global_statistics.bytes_received);
 185                         rrddim_set(stbytes, "out", global_statistics.bytes_sent);
 186                         rrdset_done(stbytes);
 187                 }
 188
 189                 usleep(susec);
 190
 191                 // copy current to last
 192                 bcopy(&now, &last, sizeof(struct timeval));
 193         }
 194
 195         return NULL;
 196 }