src/plugin_proc.c

   1 #ifdef HAVE_CONFIG_H
   2 #include <config.h>
   3 #endif
   4 #include <pthread.h>
   5 #include <sys/time.h>
   6 #include <sys/resource.h>
   7 #include <strings.h>
   8 #include <unistd.h>
   9
  10 #include "global_statistics.h"
  11 #include "common.h"
  12 #include "appconfig.h"
  13 #include "log.h"
  14 #include "rrd.h"
  15 #include "plugin_proc.h"
  16 #include "main.h"
  17 #include "registry.h"
  18
  19 void *proc_main(void *ptr)
  20 {
  21         (void)ptr;
  22
  23         unsigned long long old_web_requests = 0, old_web_usec = 0,
  24                         old_content_size = 0, old_compressed_content_size = 0;
  25
  26         collected_number compression_ratio = -1, average_response_time = -1;
  27
  28         info("PROC Plugin thread created with task id %d", gettid());
  29
  30         if(pthread_setcanceltype(PTHREAD_CANCEL_DEFERRED, NULL) != 0)
  31                 error("Cannot set pthread cancel type to DEFERRED.");
  32
  33         if(pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL) != 0)
  34                 error("Cannot set pthread cancel state to ENABLE.");
  35
  36         struct rusage me, thread;
  37
  38         // disable (by default) various interface that are not needed
  39         config_get_boolean("plugin:proc:/proc/net/dev:lo", "enabled", 0);
  40         config_get_boolean("plugin:proc:/proc/net/dev:fireqos_monitor", "enabled", 0);
  41
  42         // when ZERO, attempt to do it
  43         int vdo_proc_net_dev                    = !config_get_boolean("plugin:proc", "/proc/net/dev", 1);
  44         int vdo_proc_diskstats                  = !config_get_boolean("plugin:proc", "/proc/diskstats", 1);
  45         int vdo_proc_net_snmp                   = !config_get_boolean("plugin:proc", "/proc/net/snmp", 1);
  46         int vdo_proc_net_snmp6                  = !config_get_boolean("plugin:proc", "/proc/net/snmp6", 1);
  47         int vdo_proc_net_netstat                = !config_get_boolean("plugin:proc", "/proc/net/netstat", 1);
  48         int vdo_proc_net_stat_conntrack = !config_get_boolean("plugin:proc", "/proc/net/stat/conntrack", 1);
  49         int vdo_proc_net_ip_vs_stats    = !config_get_boolean("plugin:proc", "/proc/net/ip_vs/stats", 1);
  50         int vdo_proc_net_stat_synproxy  = !config_get_boolean("plugin:proc", "/proc/net/stat/synproxy", 1);
  51         int vdo_proc_stat                               = !config_get_boolean("plugin:proc", "/proc/stat", 1);
  52         int vdo_proc_meminfo                    = !config_get_boolean("plugin:proc", "/proc/meminfo", 1);
  53         int vdo_proc_vmstat                     = !config_get_boolean("plugin:proc", "/proc/vmstat", 1);
  54         int vdo_proc_net_rpc_nfsd               = !config_get_boolean("plugin:proc", "/proc/net/rpc/nfsd", 1);
  55         int vdo_proc_sys_kernel_random_entropy_avail    = !config_get_boolean("plugin:proc", "/proc/sys/kernel/random/entropy_avail", 1);
  56         int vdo_proc_interrupts                 = !config_get_boolean("plugin:proc", "/proc/interrupts", 1);
  57         int vdo_proc_softirqs                   = !config_get_boolean("plugin:proc", "/proc/softirqs", 1);
  58         int vdo_proc_loadavg                    = !config_get_boolean("plugin:proc", "/proc/loadavg", 1);
  59         int vdo_sys_kernel_mm_ksm               = !config_get_boolean("plugin:proc", "/sys/kernel/mm/ksm", 1);
  60         int vdo_cpu_netdata                     = !config_get_boolean("plugin:proc", "netdata server resources", 1);
  61
  62         // keep track of the time each module was called
  63         unsigned long long sutime_proc_net_dev = 0ULL;
  64         unsigned long long sutime_proc_diskstats = 0ULL;
  65         unsigned long long sutime_proc_net_snmp = 0ULL;
  66         unsigned long long sutime_proc_net_snmp6 = 0ULL;
  67         unsigned long long sutime_proc_net_netstat = 0ULL;
  68         unsigned long long sutime_proc_net_stat_conntrack = 0ULL;
  69         unsigned long long sutime_proc_net_ip_vs_stats = 0ULL;
  70         unsigned long long sutime_proc_net_stat_synproxy = 0ULL;
  71         unsigned long long sutime_proc_stat = 0ULL;
  72         unsigned long long sutime_proc_meminfo = 0ULL;
  73         unsigned long long sutime_proc_vmstat = 0ULL;
  74         unsigned long long sutime_proc_net_rpc_nfsd = 0ULL;
  75         unsigned long long sutime_proc_sys_kernel_random_entropy_avail = 0ULL;
  76         unsigned long long sutime_proc_interrupts = 0ULL;
  77         unsigned long long sutime_proc_softirqs = 0ULL;
  78         unsigned long long sutime_proc_loadavg = 0ULL;
  79         unsigned long long sutime_sys_kernel_mm_ksm = 0ULL;
  80
  81         // the next time we will run - aligned properly
  82         unsigned long long sunext = (time(NULL) - (time(NULL) % rrd_update_every) + rrd_update_every) * 1000000ULL;
  83         unsigned long long sunow;
  84
  85         RRDSET *stcpu = NULL, *stcpu_thread = NULL, *stclients = NULL, *streqs = NULL, *stbytes = NULL, *stduration = NULL,
  86                         *stcompression = NULL;
  87
  88         for(;1;) {
  89                 if(unlikely(netdata_exit)) break;
  90
  91                 // delay until it is our time to run
  92                 while((sunow = timems()) < sunext)
  93                         usecsleep(sunext - sunow);
  94
  95                 // find the next time we need to run
  96                 while(timems() > sunext)
  97                         sunext += rrd_update_every * 1000000ULL;
  98
  99                 if(unlikely(netdata_exit)) break;
 100
 101                 // BEGIN -- the job to be done
 102
 103                 if(!vdo_sys_kernel_mm_ksm) {
 104                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling do_sys_kernel_mm_ksm().");
 105
 106                         sunow = timems();
 107                         vdo_sys_kernel_mm_ksm = do_sys_kernel_mm_ksm(rrd_update_every, (sutime_sys_kernel_mm_ksm > 0)?sunow - sutime_sys_kernel_mm_ksm:0ULL);
 108                         sutime_sys_kernel_mm_ksm = sunow;
 109                 }
 110                 if(unlikely(netdata_exit)) break;
 111
 112                 if(!vdo_proc_loadavg) {
 113                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling do_proc_loadavg().");
 114                         sunow = timems();
 115                         vdo_proc_loadavg = do_proc_loadavg(rrd_update_every, (sutime_proc_loadavg > 0)?sunow - sutime_proc_loadavg:0ULL);
 116                         sutime_proc_loadavg = sunow;
 117                 }
 118                 if(unlikely(netdata_exit)) break;
 119
 120                 if(!vdo_proc_interrupts) {
 121                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling do_proc_interrupts().");
 122                         sunow = timems();
 123                         vdo_proc_interrupts = do_proc_interrupts(rrd_update_every, (sutime_proc_interrupts > 0)?sunow - sutime_proc_interrupts:0ULL);
 124                         sutime_proc_interrupts = sunow;
 125                 }
 126                 if(unlikely(netdata_exit)) break;
 127
 128                 if(!vdo_proc_softirqs) {
 129                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling do_proc_softirqs().");
 130                         sunow = timems();
 131                         vdo_proc_softirqs = do_proc_softirqs(rrd_update_every, (sutime_proc_softirqs > 0)?sunow - sutime_proc_softirqs:0ULL);
 132                         sutime_proc_softirqs = sunow;
 133                 }
 134                 if(unlikely(netdata_exit)) break;
 135
 136                 if(!vdo_proc_sys_kernel_random_entropy_avail) {
 137                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling do_proc_sys_kernel_random_entropy_avail().");
 138                         sunow = timems();
 139                         vdo_proc_sys_kernel_random_entropy_avail = do_proc_sys_kernel_random_entropy_avail(rrd_update_every, (sutime_proc_sys_kernel_random_entropy_avail > 0)?sunow - sutime_proc_sys_kernel_random_entropy_avail:0ULL);
 140                         sutime_proc_sys_kernel_random_entropy_avail = sunow;
 141                 }
 142                 if(unlikely(netdata_exit)) break;
 143
 144                 if(!vdo_proc_net_dev) {
 145                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling do_proc_net_dev().");
 146                         sunow = timems();
 147                         vdo_proc_net_dev = do_proc_net_dev(rrd_update_every, (sutime_proc_net_dev > 0)?sunow - sutime_proc_net_dev:0ULL);
 148                         sutime_proc_net_dev = sunow;
 149                 }
 150                 if(unlikely(netdata_exit)) break;
 151
 152                 if(!vdo_proc_diskstats) {
 153                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling do_proc_diskstats().");
 154                         sunow = timems();
 155                         vdo_proc_diskstats = do_proc_diskstats(rrd_update_every, (sutime_proc_diskstats > 0)?sunow - sutime_proc_diskstats:0ULL);
 156                         sutime_proc_diskstats = sunow;
 157                 }
 158                 if(unlikely(netdata_exit)) break;
 159
 160                 if(!vdo_proc_net_snmp) {
 161                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling do_proc_net_snmp().");
 162                         sunow = timems();
 163                         vdo_proc_net_snmp = do_proc_net_snmp(rrd_update_every, (sutime_proc_net_snmp > 0)?sunow - sutime_proc_net_snmp:0ULL);
 164                         sutime_proc_net_snmp = sunow;
 165                 }
 166                 if(unlikely(netdata_exit)) break;
 167
 168                 if(!vdo_proc_net_snmp6) {
 169                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling do_proc_net_snmp6().");
 170                         sunow = timems();
 171                         vdo_proc_net_snmp6 = do_proc_net_snmp6(rrd_update_every, (sutime_proc_net_snmp6 > 0)?sunow - sutime_proc_net_snmp6:0ULL);
 172                         sutime_proc_net_snmp6 = sunow;
 173                 }
 174                 if(unlikely(netdata_exit)) break;
 175
 176                 if(!vdo_proc_net_netstat) {
 177                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling do_proc_net_netstat().");
 178                         sunow = timems();
 179                         vdo_proc_net_netstat = do_proc_net_netstat(rrd_update_every, (sutime_proc_net_netstat > 0)?sunow - sutime_proc_net_netstat:0ULL);
 180                         sutime_proc_net_netstat = sunow;
 181                 }
 182                 if(unlikely(netdata_exit)) break;
 183
 184                 if(!vdo_proc_net_stat_conntrack) {
 185                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling do_proc_net_stat_conntrack().");
 186                         sunow = timems();
 187                         vdo_proc_net_stat_conntrack     = do_proc_net_stat_conntrack(rrd_update_every, (sutime_proc_net_stat_conntrack > 0)?sunow - sutime_proc_net_stat_conntrack:0ULL);
 188                         sutime_proc_net_stat_conntrack = sunow;
 189                 }
 190                 if(unlikely(netdata_exit)) break;
 191
 192                 if(!vdo_proc_net_ip_vs_stats) {
 193                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling vdo_proc_net_ip_vs_stats().");
 194                         sunow = timems();
 195                         vdo_proc_net_ip_vs_stats = do_proc_net_ip_vs_stats(rrd_update_every, (sutime_proc_net_ip_vs_stats > 0)?sunow - sutime_proc_net_ip_vs_stats:0ULL);
 196                         sutime_proc_net_ip_vs_stats = sunow;
 197                 }
 198                 if(unlikely(netdata_exit)) break;
 199
 200                 if(!vdo_proc_net_stat_synproxy) {
 201                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling vdo_proc_net_stat_synproxy().");
 202                         sunow = timems();
 203                         vdo_proc_net_stat_synproxy = do_proc_net_stat_synproxy(rrd_update_every, (sutime_proc_net_stat_synproxy > 0)?sunow - sutime_proc_net_stat_synproxy:0ULL);
 204                         sutime_proc_net_stat_synproxy = sunow;
 205                 }
 206                 if(unlikely(netdata_exit)) break;
 207
 208                 if(!vdo_proc_stat) {
 209                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling do_proc_stat().");
 210                         sunow = timems();
 211                         vdo_proc_stat = do_proc_stat(rrd_update_every, (sutime_proc_stat > 0)?sunow - sutime_proc_stat:0ULL);
 212                         sutime_proc_stat = sunow;
 213                 }
 214                 if(unlikely(netdata_exit)) break;
 215
 216                 if(!vdo_proc_meminfo) {
 217                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling vdo_proc_meminfo().");
 218                         sunow = timems();
 219                         vdo_proc_meminfo = do_proc_meminfo(rrd_update_every, (sutime_proc_meminfo > 0)?sunow - sutime_proc_meminfo:0ULL);
 220                         sutime_proc_meminfo = sunow;
 221                 }
 222                 if(unlikely(netdata_exit)) break;
 223
 224                 if(!vdo_proc_vmstat) {
 225                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling vdo_proc_vmstat().");
 226                         sunow = timems();
 227                         vdo_proc_vmstat = do_proc_vmstat(rrd_update_every, (sutime_proc_vmstat > 0)?sunow - sutime_proc_vmstat:0ULL);
 228                         sutime_proc_vmstat = sunow;
 229                 }
 230                 if(unlikely(netdata_exit)) break;
 231
 232                 if(!vdo_proc_net_rpc_nfsd) {
 233                         debug(D_PROCNETDEV_LOOP, "PROCNETDEV: calling do_proc_net_rpc_nfsd().");
 234                         sunow = timems();
 235                         vdo_proc_net_rpc_nfsd = do_proc_net_rpc_nfsd(rrd_update_every, (sutime_proc_net_rpc_nfsd > 0)?sunow - sutime_proc_net_rpc_nfsd:0ULL);
 236                         sutime_proc_net_rpc_nfsd = sunow;
 237                 }
 238                 if(unlikely(netdata_exit)) break;
 239
 240                 // END -- the job is done
 241
 242                 // --------------------------------------------------------------------
 243
 244                 if(!vdo_cpu_netdata) {
 245                         getrusage(RUSAGE_THREAD, &thread);
 246                         getrusage(RUSAGE_SELF, &me);
 247
 248                         if(!stcpu_thread) stcpu_thread = rrdset_find("netdata.plugin_proc_cpu");
 249                         if(!stcpu_thread) {
 250                                 stcpu_thread = rrdset_create("netdata", "plugin_proc_cpu", NULL, "proc.internal", NULL, "NetData Proc Plugin CPU usage", "milliseconds/s", 132000, rrd_update_every, RRDSET_TYPE_STACKED);
 251
 252                                 rrddim_add(stcpu_thread, "user",  NULL,  1, 1000, RRDDIM_INCREMENTAL);
 253                                 rrddim_add(stcpu_thread, "system", NULL, 1, 1000, RRDDIM_INCREMENTAL);
 254                         }
 255                         else rrdset_next(stcpu_thread);
 256
 257                         rrddim_set(stcpu_thread, "user"  , thread.ru_utime.tv_sec * 1000000ULL + thread.ru_utime.tv_usec);
 258                         rrddim_set(stcpu_thread, "system", thread.ru_stime.tv_sec * 1000000ULL + thread.ru_stime.tv_usec);
 259                         rrdset_done(stcpu_thread);
 260
 261                         // ----------------------------------------------------------------
 262
 263                         if(!stcpu) stcpu = rrdset_find("netdata.server_cpu");
 264                         if(!stcpu) {
 265                                 stcpu = rrdset_create("netdata", "server_cpu", NULL, "netdata", NULL, "NetData CPU usage", "milliseconds/s", 130000, rrd_update_every, RRDSET_TYPE_STACKED);
 266
 267                                 rrddim_add(stcpu, "user",  NULL,  1, 1000, RRDDIM_INCREMENTAL);
 268                                 rrddim_add(stcpu, "system", NULL, 1, 1000, RRDDIM_INCREMENTAL);
 269                         }
 270                         else rrdset_next(stcpu);
 271
 272                         rrddim_set(stcpu, "user"  , me.ru_utime.tv_sec * 1000000ULL + me.ru_utime.tv_usec);
 273                         rrddim_set(stcpu, "system", me.ru_stime.tv_sec * 1000000ULL + me.ru_stime.tv_usec);
 274                         rrdset_done(stcpu);
 275
 276                         // ----------------------------------------------------------------
 277
 278                         if(!stclients) stclients = rrdset_find("netdata.clients");
 279                         if(!stclients) {
 280                                 stclients = rrdset_create("netdata", "clients", NULL, "netdata", NULL, "NetData Web Clients", "connected clients", 130100, rrd_update_every, RRDSET_TYPE_LINE);
 281
 282                                 rrddim_add(stclients, "clients",  NULL,  1, 1, RRDDIM_ABSOLUTE);
 283                         }
 284                         else rrdset_next(stclients);
 285
 286                         rrddim_set(stclients, "clients", global_statistics.connected_clients);
 287                         rrdset_done(stclients);
 288
 289                         // ----------------------------------------------------------------
 290
 291                         if(!streqs) streqs = rrdset_find("netdata.requests");
 292                         if(!streqs) {
 293                                 streqs = rrdset_create("netdata", "requests", NULL, "netdata", NULL, "NetData Web Requests", "requests/s", 130200, rrd_update_every, RRDSET_TYPE_LINE);
 294
 295                                 rrddim_add(streqs, "requests",  NULL,  1, 1, RRDDIM_INCREMENTAL);
 296                         }
 297                         else rrdset_next(streqs);
 298
 299                         rrddim_set(streqs, "requests", global_statistics.web_requests);
 300                         rrdset_done(streqs);
 301
 302                         // ----------------------------------------------------------------
 303
 304                         if(!stbytes) stbytes = rrdset_find("netdata.net");
 305                         if(!stbytes) {
 306                                 stbytes = rrdset_create("netdata", "net", NULL, "netdata", NULL, "NetData Network Traffic", "kilobits/s", 130300, rrd_update_every, RRDSET_TYPE_AREA);
 307
 308                                 rrddim_add(stbytes, "in",  NULL,  8, 1024, RRDDIM_INCREMENTAL);
 309                                 rrddim_add(stbytes, "out",  NULL,  -8, 1024, RRDDIM_INCREMENTAL);
 310                         }
 311                         else rrdset_next(stbytes);
 312
 313                         rrddim_set(stbytes, "in", global_statistics.bytes_received);
 314                         rrddim_set(stbytes, "out", global_statistics.bytes_sent);
 315                         rrdset_done(stbytes);
 316
 317                         // ----------------------------------------------------------------
 318
 319                         if(!stduration) stduration = rrdset_find("netdata.response_time");
 320                         if(!stduration) {
 321                                 stduration = rrdset_create("netdata", "response_time", NULL, "netdata", NULL, "NetData Average API Response Time", "ms/request", 130400, rrd_update_every, RRDSET_TYPE_LINE);
 322
 323                                 rrddim_add(stduration, "response_time", "response time",  1, 1000, RRDDIM_ABSOLUTE);
 324                         }
 325                         else rrdset_next(stduration);
 326
 327                         unsigned long long gweb_usec     = global_statistics.web_usec;
 328                         unsigned long long gweb_requests = global_statistics.web_requests;
 329
 330                         unsigned long long web_usec     = gweb_usec     - old_web_usec;
 331                         unsigned long long web_requests = gweb_requests - old_web_requests;
 332
 333                         old_web_usec     = gweb_usec;
 334                         old_web_requests = gweb_requests;
 335
 336                         if(web_requests)
 337                                 average_response_time =  web_usec / web_requests;
 338
 339                         if(average_response_time != -1)
 340                                 rrddim_set(stduration, "response_time", average_response_time);
 341
 342                         rrdset_done(stduration);
 343
 344                         // ----------------------------------------------------------------
 345
 346                         if(!stcompression) stcompression = rrdset_find("netdata.compression_ratio");
 347                         if(!stcompression) {
 348                                 stcompression = rrdset_create("netdata", "compression_ratio", NULL, "netdata", NULL, "NetData API Responses Compression Savings Ratio", "percentage", 130500, rrd_update_every, RRDSET_TYPE_LINE);
 349
 350                                 rrddim_add(stcompression, "savings", NULL,  1, 1000, RRDDIM_ABSOLUTE);
 351                         }
 352                         else rrdset_next(stcompression);
 353
 354                         // since we don't lock here to read the global statistics
 355                         // read the smaller value first
 356                         unsigned long long gcompressed_content_size = global_statistics.compressed_content_size;
 357                         unsigned long long gcontent_size            = global_statistics.content_size;
 358
 359                         unsigned long long compressed_content_size  = gcompressed_content_size - old_compressed_content_size;
 360                         unsigned long long content_size             = gcontent_size            - old_content_size;
 361
 362                         old_compressed_content_size = gcompressed_content_size;
 363                         old_content_size            = gcontent_size;
 364
 365                         if(content_size && content_size >= compressed_content_size)
 366                                 compression_ratio = ((content_size - compressed_content_size) * 100 * 1000) / content_size;
 367
 368                         if(compression_ratio != -1)
 369                                 rrddim_set(stcompression, "savings", compression_ratio);
 370
 371                         rrdset_done(stcompression);
 372
 373                         // ----------------------------------------------------------------
 374
 375                         registry_statistics();
 376                 }
 377         }
 378
 379         pthread_exit(NULL);
 380         return NULL;
 381 }