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https://github.com/netdata/netdata.git
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226 lines
7.8 KiB
C
226 lines
7.8 KiB
C
// SPDX-License-Identifier: GPL-3.0-or-later
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#include "plugin_proc.h"
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static struct proc_module {
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const char *name;
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const char *dim;
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int enabled;
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int (*func)(int update_every, usec_t dt);
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RRDDIM *rd;
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} proc_modules[] = {
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// system metrics
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{.name = "/proc/stat", .dim = "stat", .func = do_proc_stat},
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{.name = "/proc/uptime", .dim = "uptime", .func = do_proc_uptime},
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{.name = "/proc/loadavg", .dim = "loadavg", .func = do_proc_loadavg},
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{.name = "/proc/sys/kernel/random/entropy_avail", .dim = "entropy", .func = do_proc_sys_kernel_random_entropy_avail},
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// pressure metrics
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{.name = "/proc/pressure", .dim = "pressure", .func = do_proc_pressure},
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// CPU metrics
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{.name = "/proc/interrupts", .dim = "interrupts", .func = do_proc_interrupts},
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{.name = "/proc/softirqs", .dim = "softirqs", .func = do_proc_softirqs},
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// memory metrics
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{.name = "/proc/vmstat", .dim = "vmstat", .func = do_proc_vmstat},
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{.name = "/proc/meminfo", .dim = "meminfo", .func = do_proc_meminfo},
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{.name = "/sys/kernel/mm/ksm", .dim = "ksm", .func = do_sys_kernel_mm_ksm},
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{.name = "/sys/block/zram", .dim = "zram", .func = do_sys_block_zram},
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{.name = "/sys/devices/system/edac/mc", .dim = "ecc", .func = do_proc_sys_devices_system_edac_mc},
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{.name = "/sys/devices/system/node", .dim = "numa", .func = do_proc_sys_devices_system_node},
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{.name = "/proc/pagetypeinfo", .dim = "pagetypeinfo", .func = do_proc_pagetypeinfo},
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// network metrics
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{.name = "/proc/net/wireless", .dim = "netwireless", .func = do_proc_net_wireless},
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{.name = "/proc/net/sockstat", .dim = "sockstat", .func = do_proc_net_sockstat},
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{.name = "/proc/net/sockstat6", .dim = "sockstat6", .func = do_proc_net_sockstat6},
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{.name = "/proc/net/netstat", .dim = "netstat", .func = do_proc_net_netstat},
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{.name = "/proc/net/sctp/snmp", .dim = "sctp", .func = do_proc_net_sctp_snmp},
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{.name = "/proc/net/softnet_stat", .dim = "softnet", .func = do_proc_net_softnet_stat},
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{.name = "/proc/net/ip_vs/stats", .dim = "ipvs", .func = do_proc_net_ip_vs_stats},
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{.name = "/sys/class/infiniband", .dim = "infiniband", .func = do_sys_class_infiniband},
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// firewall metrics
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{.name = "/proc/net/stat/conntrack", .dim = "conntrack", .func = do_proc_net_stat_conntrack},
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{.name = "/proc/net/stat/synproxy", .dim = "synproxy", .func = do_proc_net_stat_synproxy},
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// disk metrics
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{.name = "/proc/diskstats", .dim = "diskstats", .func = do_proc_diskstats},
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{.name = "/proc/mdstat", .dim = "mdstat", .func = do_proc_mdstat},
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// NFS metrics
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{.name = "/proc/net/rpc/nfsd", .dim = "nfsd", .func = do_proc_net_rpc_nfsd},
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{.name = "/proc/net/rpc/nfs", .dim = "nfs", .func = do_proc_net_rpc_nfs},
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// ZFS metrics
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{.name = "/proc/spl/kstat/zfs/arcstats", .dim = "zfs_arcstats", .func = do_proc_spl_kstat_zfs_arcstats},
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{.name = "/proc/spl/kstat/zfs/pool/state",.dim = "zfs_pool_state",.func = do_proc_spl_kstat_zfs_pool_state},
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// BTRFS metrics
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{.name = "/sys/fs/btrfs", .dim = "btrfs", .func = do_sys_fs_btrfs},
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// IPC metrics
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{.name = "ipc", .dim = "ipc", .func = do_ipc},
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{.name = "/sys/class/power_supply", .dim = "power_supply", .func = do_sys_class_power_supply},
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// linux power supply metrics
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// the terminator of this array
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{.name = NULL, .dim = NULL, .func = NULL}
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};
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#if WORKER_UTILIZATION_MAX_JOB_TYPES < 36
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#error WORKER_UTILIZATION_MAX_JOB_TYPES has to be at least 36
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#endif
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static netdata_thread_t *netdev_thread = NULL;
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static void proc_main_cleanup(void *ptr)
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{
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struct netdata_static_thread *static_thread = (struct netdata_static_thread *)ptr;
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static_thread->enabled = NETDATA_MAIN_THREAD_EXITING;
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collector_info("cleaning up...");
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if (netdev_thread) {
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netdata_thread_join(*netdev_thread, NULL);
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freez(netdev_thread);
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}
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static_thread->enabled = NETDATA_MAIN_THREAD_EXITED;
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worker_unregister();
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}
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bool inside_lxc_container = false;
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static bool is_lxcfs_proc_mounted() {
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procfile *ff = NULL;
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if (unlikely(!ff)) {
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char filename[FILENAME_MAX + 1];
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snprintfz(filename, FILENAME_MAX, "/proc/self/mounts");
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ff = procfile_open(filename, " \t", PROCFILE_FLAG_DEFAULT);
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if (unlikely(!ff))
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return false;
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}
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ff = procfile_readall(ff);
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if (unlikely(!ff))
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return false;
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unsigned long l, lines = procfile_lines(ff);
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for (l = 0; l < lines; l++) {
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size_t words = procfile_linewords(ff, l);
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if (words < 2) {
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continue;
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}
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if (!strcmp(procfile_lineword(ff, l, 0), "lxcfs") && !strncmp(procfile_lineword(ff, l, 1), "/proc", 5)) {
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procfile_close(ff);
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return true;
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}
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}
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procfile_close(ff);
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return false;
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}
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void *proc_main(void *ptr)
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{
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worker_register("PROC");
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if (config_get_boolean("plugin:proc", "/proc/net/dev", CONFIG_BOOLEAN_YES)) {
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netdev_thread = mallocz(sizeof(netdata_thread_t));
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debug(D_SYSTEM, "Starting thread %s.", THREAD_NETDEV_NAME);
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netdata_thread_create(
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netdev_thread, THREAD_NETDEV_NAME, NETDATA_THREAD_OPTION_JOINABLE, netdev_main, netdev_thread);
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}
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netdata_thread_cleanup_push(proc_main_cleanup, ptr);
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config_get_boolean("plugin:proc", "/proc/pagetypeinfo", CONFIG_BOOLEAN_NO);
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// check the enabled status for each module
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int i;
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for (i = 0; proc_modules[i].name; i++) {
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struct proc_module *pm = &proc_modules[i];
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pm->enabled = config_get_boolean("plugin:proc", pm->name, CONFIG_BOOLEAN_YES);
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pm->rd = NULL;
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worker_register_job_name(i, proc_modules[i].dim);
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}
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usec_t step = localhost->rrd_update_every * USEC_PER_SEC;
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heartbeat_t hb;
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heartbeat_init(&hb);
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inside_lxc_container = is_lxcfs_proc_mounted();
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while (service_running(SERVICE_COLLECTORS)) {
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worker_is_idle();
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usec_t hb_dt = heartbeat_next(&hb, step);
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if (unlikely(!service_running(SERVICE_COLLECTORS)))
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break;
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for (i = 0; proc_modules[i].name; i++) {
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if (unlikely(!service_running(SERVICE_COLLECTORS)))
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break;
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struct proc_module *pm = &proc_modules[i];
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if (unlikely(!pm->enabled))
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continue;
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debug(D_PROCNETDEV_LOOP, "PROC calling %s.", pm->name);
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worker_is_busy(i);
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pm->enabled = !pm->func(localhost->rrd_update_every, hb_dt);
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}
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}
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netdata_thread_cleanup_pop(1);
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return NULL;
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}
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int get_numa_node_count(void)
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{
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static int numa_node_count = -1;
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if (numa_node_count != -1)
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return numa_node_count;
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numa_node_count = 0;
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char name[FILENAME_MAX + 1];
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snprintfz(name, FILENAME_MAX, "%s%s", netdata_configured_host_prefix, "/sys/devices/system/node");
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char *dirname = config_get("plugin:proc:/sys/devices/system/node", "directory to monitor", name);
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DIR *dir = opendir(dirname);
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if (dir) {
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struct dirent *de = NULL;
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while ((de = readdir(dir))) {
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if (de->d_type != DT_DIR)
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continue;
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if (strncmp(de->d_name, "node", 4) != 0)
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continue;
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if (!isdigit(de->d_name[4]))
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continue;
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numa_node_count++;
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}
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closedir(dir);
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}
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return numa_node_count;
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}
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