diff options
Diffstat (limited to 'src/plugins/linux-cgroups.plugin/sys_fs_cgroup.c')
| -rw-r--r-- | src/plugins/linux-cgroups.plugin/sys_fs_cgroup.c | 2771 |
1 files changed, 0 insertions, 2771 deletions
diff --git a/src/plugins/linux-cgroups.plugin/sys_fs_cgroup.c b/src/plugins/linux-cgroups.plugin/sys_fs_cgroup.c deleted file mode 100644 index 9c0fd7f43f..0000000000 --- a/src/plugins/linux-cgroups.plugin/sys_fs_cgroup.c +++ /dev/null @@ -1,2771 +0,0 @@ -// SPDX-License-Identifier: GPL-3.0-or-later - -#include "sys_fs_cgroup.h" - -#define PLUGIN_CGROUPS_NAME "cgroups.plugin" -#define PLUGIN_CGROUPS_MODULE_SYSTEMD_NAME "systemd" -#define PLUGIN_CGROUPS_MODULE_CGROUPS_NAME "/sys/fs/cgroup" - -// ---------------------------------------------------------------------------- -// cgroup globals - -static long system_page_size = 4096; // system will be queried via sysconf() in configuration() - -static int cgroup_enable_cpuacct_stat = CONFIG_BOOLEAN_AUTO; -static int cgroup_enable_cpuacct_usage = CONFIG_BOOLEAN_AUTO; -static int cgroup_enable_memory = CONFIG_BOOLEAN_AUTO; -static int cgroup_enable_detailed_memory = CONFIG_BOOLEAN_AUTO; -static int cgroup_enable_memory_failcnt = CONFIG_BOOLEAN_AUTO; -static int cgroup_enable_swap = CONFIG_BOOLEAN_AUTO; -static int cgroup_enable_blkio_io = CONFIG_BOOLEAN_AUTO; -static int cgroup_enable_blkio_ops = CONFIG_BOOLEAN_AUTO; -static int cgroup_enable_blkio_throttle_io = CONFIG_BOOLEAN_AUTO; -static int cgroup_enable_blkio_throttle_ops = CONFIG_BOOLEAN_AUTO; -static int cgroup_enable_blkio_merged_ops = CONFIG_BOOLEAN_AUTO; -static int cgroup_enable_blkio_queued_ops = CONFIG_BOOLEAN_AUTO; - -static int cgroup_enable_systemd_services = CONFIG_BOOLEAN_YES; -static int cgroup_enable_systemd_services_detailed_memory = CONFIG_BOOLEAN_NO; -static int cgroup_used_memory_without_cache = CONFIG_BOOLEAN_YES; - -static int cgroup_search_in_devices = 1; - -static int cgroup_enable_new_cgroups_detected_at_runtime = 1; -static int cgroup_check_for_new_every = 10; -static int cgroup_update_every = 1; - -static int cgroup_recheck_zero_blkio_every_iterations = 10; -static int cgroup_recheck_zero_mem_failcnt_every_iterations = 10; -static int cgroup_recheck_zero_mem_detailed_every_iterations = 10; - -static char *cgroup_cpuacct_base = NULL; -static char *cgroup_blkio_base = NULL; -static char *cgroup_memory_base = NULL; -static char *cgroup_devices_base = NULL; - -static int cgroup_root_count = 0; -static int cgroup_root_max = 1000; -static int cgroup_max_depth = 0; - -static SIMPLE_PATTERN *enabled_cgroup_patterns = NULL; -static SIMPLE_PATTERN *enabled_cgroup_paths = NULL; -static SIMPLE_PATTERN *enabled_cgroup_renames = NULL; -static SIMPLE_PATTERN *systemd_services_cgroups = NULL; - -static char *cgroups_rename_script = NULL; -static char *cgroups_network_interface_script = NULL; - -static int cgroups_check = 0; - -static uint32_t Read_hash = 0; -static uint32_t Write_hash = 0; -static uint32_t user_hash = 0; -static uint32_t system_hash = 0; - -void read_cgroup_plugin_configuration() { - system_page_size = sysconf(_SC_PAGESIZE); - - Read_hash = simple_hash("Read"); - Write_hash = simple_hash("Write"); - user_hash = simple_hash("user"); - system_hash = simple_hash("system"); - - cgroup_update_every = (int)config_get_number("plugin:cgroups", "update every", localhost->rrd_update_every); - if(cgroup_update_every < localhost->rrd_update_every) - cgroup_update_every = localhost->rrd_update_every; - - cgroup_check_for_new_every = (int)config_get_number("plugin:cgroups", "check for new cgroups every", (long long)cgroup_check_for_new_every * (long long)cgroup_update_every); - if(cgroup_check_for_new_every < cgroup_update_every) - cgroup_check_for_new_every = cgroup_update_every; - - cgroup_enable_cpuacct_stat = config_get_boolean_ondemand("plugin:cgroups", "enable cpuacct stat (total CPU)", cgroup_enable_cpuacct_stat); - cgroup_enable_cpuacct_usage = config_get_boolean_ondemand("plugin:cgroups", "enable cpuacct usage (per core CPU)", cgroup_enable_cpuacct_usage); - - cgroup_enable_memory = config_get_boolean_ondemand("plugin:cgroups", "enable memory (used mem including cache)", cgroup_enable_memory); - cgroup_enable_detailed_memory = config_get_boolean_ondemand("plugin:cgroups", "enable detailed memory", cgroup_enable_detailed_memory); - cgroup_enable_memory_failcnt = config_get_boolean_ondemand("plugin:cgroups", "enable memory limits fail count", cgroup_enable_memory_failcnt); - cgroup_enable_swap = config_get_boolean_ondemand("plugin:cgroups", "enable swap memory", cgroup_enable_swap); - - cgroup_enable_blkio_io = config_get_boolean_ondemand("plugin:cgroups", "enable blkio bandwidth", cgroup_enable_blkio_io); - cgroup_enable_blkio_ops = config_get_boolean_ondemand("plugin:cgroups", "enable blkio operations", cgroup_enable_blkio_ops); - cgroup_enable_blkio_throttle_io = config_get_boolean_ondemand("plugin:cgroups", "enable blkio throttle bandwidth", cgroup_enable_blkio_throttle_io); - cgroup_enable_blkio_throttle_ops = config_get_boolean_ondemand("plugin:cgroups", "enable blkio throttle operations", cgroup_enable_blkio_throttle_ops); - cgroup_enable_blkio_queued_ops = config_get_boolean_ondemand("plugin:cgroups", "enable blkio queued operations", cgroup_enable_blkio_queued_ops); - cgroup_enable_blkio_merged_ops = config_get_boolean_ondemand("plugin:cgroups", "enable blkio merged operations", cgroup_enable_blkio_merged_ops); - - cgroup_recheck_zero_blkio_every_iterations = (int)config_get_number("plugin:cgroups", "recheck zero blkio every iterations", cgroup_recheck_zero_blkio_every_iterations); - cgroup_recheck_zero_mem_failcnt_every_iterations = (int)config_get_number("plugin:cgroups", "recheck zero memory failcnt every iterations", cgroup_recheck_zero_mem_failcnt_every_iterations); - cgroup_recheck_zero_mem_detailed_every_iterations = (int)config_get_number("plugin:cgroups", "recheck zero detailed memory every iterations", cgroup_recheck_zero_mem_detailed_every_iterations); - - cgroup_enable_systemd_services = config_get_boolean("plugin:cgroups", "enable systemd services", cgroup_enable_systemd_services); - cgroup_enable_systemd_services_detailed_memory = config_get_boolean("plugin:cgroups", "enable systemd services detailed memory", cgroup_enable_systemd_services_detailed_memory); - cgroup_used_memory_without_cache = config_get_boolean("plugin:cgroups", "report used memory without cache", cgroup_used_memory_without_cache); - - char filename[FILENAME_MAX + 1], *s; - struct mountinfo *mi, *root = mountinfo_read(0); - - mi = mountinfo_find_by_filesystem_super_option(root, "cgroup", "cpuacct"); - if(!mi) mi = mountinfo_find_by_filesystem_mount_source(root, "cgroup", "cpuacct"); - if(!mi) { - error("CGROUP: cannot find cpuacct mountinfo. Assuming default: /sys/fs/cgroup/cpuacct"); - s = "/sys/fs/cgroup/cpuacct"; - } - else s = mi->mount_point; - snprintfz(filename, FILENAME_MAX, "%s%s", netdata_configured_host_prefix, s); - cgroup_cpuacct_base = config_get("plugin:cgroups", "path to /sys/fs/cgroup/cpuacct", filename); - - mi = mountinfo_find_by_filesystem_super_option(root, "cgroup", "blkio"); - if(!mi) mi = mountinfo_find_by_filesystem_mount_source(root, "cgroup", "blkio"); - if(!mi) { - error("CGROUP: cannot find blkio mountinfo. Assuming default: /sys/fs/cgroup/blkio"); - s = "/sys/fs/cgroup/blkio"; - } - else s = mi->mount_point; - snprintfz(filename, FILENAME_MAX, "%s%s", netdata_configured_host_prefix, s); - cgroup_blkio_base = config_get("plugin:cgroups", "path to /sys/fs/cgroup/blkio", filename); - - mi = mountinfo_find_by_filesystem_super_option(root, "cgroup", "memory"); - if(!mi) mi = mountinfo_find_by_filesystem_mount_source(root, "cgroup", "memory"); - if(!mi) { - error("CGROUP: cannot find memory mountinfo. Assuming default: /sys/fs/cgroup/memory"); - s = "/sys/fs/cgroup/memory"; - } - else s = mi->mount_point; - snprintfz(filename, FILENAME_MAX, "%s%s", netdata_configured_host_prefix, s); - cgroup_memory_base = config_get("plugin:cgroups", "path to /sys/fs/cgroup/memory", filename); - - mi = mountinfo_find_by_filesystem_super_option(root, "cgroup", "devices"); - if(!mi) mi = mountinfo_find_by_filesystem_mount_source(root, "cgroup", "devices"); - if(!mi) { - error("CGROUP: cannot find devices mountinfo. Assuming default: /sys/fs/cgroup/devices"); - s = "/sys/fs/cgroup/devices"; - } - else s = mi->mount_point; - snprintfz(filename, FILENAME_MAX, "%s%s", netdata_configured_host_prefix, s); - cgroup_devices_base = config_get("plugin:cgroups", "path to /sys/fs/cgroup/devices", filename); - - cgroup_root_max = (int)config_get_number("plugin:cgroups", "max cgroups to allow", cgroup_root_max); - cgroup_max_depth = (int)config_get_number("plugin:cgroups", "max cgroups depth to monitor", cgroup_max_depth); - - cgroup_enable_new_cgroups_detected_at_runtime = config_get_boolean("plugin:cgroups", "enable new cgroups detected at run time", cgroup_enable_new_cgroups_detected_at_runtime); - - enabled_cgroup_patterns = simple_pattern_create( - config_get("plugin:cgroups", "enable by default cgroups matching", - // ---------------------------------------------------------------- - - " !*/init.scope " // ignore init.scope - " !/system.slice/run-*.scope " // ignore system.slice/run-XXXX.scope - " *.scope " // we need all other *.scope for sure - - // ---------------------------------------------------------------- - - " /machine.slice/*.service " // #3367 systemd-nspawn - - // ---------------------------------------------------------------- - - " !*/vcpu* " // libvirtd adds these sub-cgroups - " !*/emulator " // libvirtd adds these sub-cgroups - " !*.mount " - " !*.partition " - " !*.service " - " !*.socket " - " !*.slice " - " !*.swap " - " !*.user " - " !/ " - " !/docker " - " !/libvirt " - " !/lxc " - " !/lxc/*/* " // #1397 #2649 - " !/machine " - " !/qemu " - " !/system " - " !/systemd " - " !/user " - " * " // enable anything else - ), NULL, SIMPLE_PATTERN_EXACT); - - enabled_cgroup_paths = simple_pattern_create( - config_get("plugin:cgroups", "search for cgroups in subpaths matching", - " !*/init.scope " // ignore init.scope - " !*-qemu " // #345 - " !*.libvirt-qemu " // #3010 - " !/init.scope " - " !/system " - " !/systemd " - " !/user " - " !/user.slice " - " !/lxc/*/* " // #2161 #2649 - " * " - ), NULL, SIMPLE_PATTERN_EXACT); - - snprintfz(filename, FILENAME_MAX, "%s/cgroup-name.sh", netdata_configured_plugins_dir); - cgroups_rename_script = config_get("plugin:cgroups", "script to get cgroup names", filename); - - snprintfz(filename, FILENAME_MAX, "%s/cgroup-network", netdata_configured_plugins_dir); - cgroups_network_interface_script = config_get("plugin:cgroups", "script to get cgroup network interfaces", filename); - - enabled_cgroup_renames = simple_pattern_create( - config_get("plugin:cgroups", "run script to rename cgroups matching", - " !/ " - " !*.mount " - " !*.socket " - " !*.partition " - " /machine.slice/*.service " // #3367 systemd-nspawn - " !*.service " - " !*.slice " - " !*.swap " - " !*.user " - " !init.scope " - " !*.scope/vcpu* " // libvirtd adds these sub-cgroups - " !*.scope/emulator " // libvirtd adds these sub-cgroups - " *.scope " - " *docker* " - " *lxc* " - " *qemu* " - " *kubepods* " // #3396 kubernetes - " *.libvirt-qemu " // #3010 - " * " - ), NULL, SIMPLE_PATTERN_EXACT); - - if(cgroup_enable_systemd_services) { - systemd_services_cgroups = simple_pattern_create( - config_get("plugin:cgroups", "cgroups to match as systemd services", - " !/system.slice/*/*.service " - " /system.slice/*.service " - ), NULL, SIMPLE_PATTERN_EXACT); - } - - mountinfo_free_all(root); -} - -// ---------------------------------------------------------------------------- -// cgroup objects - -struct blkio { - int updated; - int enabled; // CONFIG_BOOLEAN_YES or CONFIG_BOOLEAN_AUTO - int delay_counter; - - char *filename; - - unsigned long long Read; - unsigned long long Write; -/* - unsigned long long Sync; - unsigned long long Async; - unsigned long long Total; -*/ -}; - -// https://www.kernel.org/doc/Documentation/cgroup-v1/memory.txt -struct memory { - ARL_BASE *arl_base; - ARL_ENTRY *arl_dirty; - ARL_ENTRY *arl_swap; - - int updated_detailed; - int updated_usage_in_bytes; - int updated_msw_usage_in_bytes; - int updated_failcnt; - - int enabled_detailed; // CONFIG_BOOLEAN_YES or CONFIG_BOOLEAN_AUTO - int enabled_usage_in_bytes; // CONFIG_BOOLEAN_YES or CONFIG_BOOLEAN_AUTO - int enabled_msw_usage_in_bytes; // CONFIG_BOOLEAN_YES or CONFIG_BOOLEAN_AUTO - int enabled_failcnt; // CONFIG_BOOLEAN_YES or CONFIG_BOOLEAN_AUTO - - int delay_counter_detailed; - int delay_counter_failcnt; - - char *filename_detailed; - char *filename_usage_in_bytes; - char *filename_msw_usage_in_bytes; - char *filename_failcnt; - - int detailed_has_dirty; - int detailed_has_swap; - - // detailed metrics - unsigned long long cache; - unsigned long long rss; - unsigned long long rss_huge; - unsigned long long mapped_file; - unsigned long long writeback; - unsigned long long dirty; - unsigned long long swap; - unsigned long long pgpgin; - unsigned long long pgpgout; - unsigned long long pgfault; - unsigned long long pgmajfault; -/* - unsigned long long inactive_anon; - unsigned long long active_anon; - unsigned long long inactive_file; - unsigned long long active_file; - unsigned long long unevictable; - unsigned long long hierarchical_memory_limit; - unsigned long long total_cache; - unsigned long long total_rss; - unsigned long long total_rss_huge; - unsigned long long total_mapped_file; - unsigned long long total_writeback; - unsigned long long total_dirty; - unsigned long long total_swap; - unsigned long long total_pgpgin; - unsigned long long total_pgpgout; - unsigned long long total_pgfault; - unsigned long long total_pgmajfault; - unsigned long long total_inactive_anon; - unsigned long long total_active_anon; - unsigned long long total_inactive_file; - unsigned long long total_active_file; - unsigned long long total_unevictable; -*/ - - // single file metrics - unsigned long long usage_in_bytes; - unsigned long long msw_usage_in_bytes; - unsigned long long failcnt; -}; - -// https://www.kernel.org/doc/Documentation/cgroup-v1/cpuacct.txt -struct cpuacct_stat { - int updated; - int enabled; // CONFIG_BOOLEAN_YES or CONFIG_BOOLEAN_AUTO - - char *filename; - - unsigned long long user; - unsigned long long system; -}; - -// https://www.kernel.org/doc/Documentation/cgroup-v1/cpuacct.txt -struct cpuacct_usage { - int updated; - int enabled; // CONFIG_BOOLEAN_YES or CONFIG_BOOLEAN_AUTO - - char *filename; - - unsigned int cpus; - unsigned long long *cpu_percpu; -}; - -struct cgroup_network_interface { - const char *host_device; - const char *container_device; - struct cgroup_network_interface *next; -}; - -#define CGROUP_OPTIONS_DISABLED_DUPLICATE 0x00000001 -#define CGROUP_OPTIONS_SYSTEM_SLICE_SERVICE 0x00000002 - -struct cgroup { - uint32_t options; - - char available; // found in the filesystem - char enabled; // enabled in the config - - char *id; - uint32_t hash; - - char *chart_id; - uint32_t hash_chart; - - char *chart_title; - - struct cpuacct_stat cpuacct_stat; - struct cpuacct_usage cpuacct_usage; - - struct memory memory; - - struct blkio io_service_bytes; // bytes - struct blkio io_serviced; // operations - - struct blkio throttle_io_service_bytes; // bytes - struct blkio throttle_io_serviced; // operations - - struct blkio io_merged; // operations - struct blkio io_queued; // operations - - struct cgroup_network_interface *interfaces; - - // per cgroup charts - RRDSET *st_cpu; - RRDSET *st_cpu_per_core; - RRDSET *st_mem; - RRDSET *st_writeback; - RRDSET *st_mem_activity; - RRDSET *st_pgfaults; - RRDSET *st_mem_usage; - RRDSET *st_mem_failcnt; - RRDSET *st_io; - RRDSET *st_serviced_ops; - RRDSET *st_throttle_io; - RRDSET *st_throttle_serviced_ops; - RRDSET *st_queued_ops; - RRDSET *st_merged_ops; - - // services - RRDDIM *rd_cpu; - RRDDIM *rd_mem_usage; - RRDDIM *rd_mem_failcnt; - RRDDIM *rd_swap_usage; - - RRDDIM *rd_mem_detailed_cache; - RRDDIM *rd_mem_detailed_rss; - RRDDIM *rd_mem_detailed_mapped; - RRDDIM *rd_mem_detailed_writeback; - RRDDIM *rd_mem_detailed_pgpgin; - RRDDIM *rd_mem_detailed_pgpgout; - RRDDIM *rd_mem_detailed_pgfault; - RRDDIM *rd_mem_detailed_pgmajfault; - - RRDDIM *rd_io_service_bytes_read; - RRDDIM *rd_io_serviced_read; - RRDDIM *rd_throttle_io_read; - RRDDIM *rd_throttle_io_serviced_read; - RRDDIM *rd_io_queued_read; - RRDDIM *rd_io_merged_read; - - RRDDIM *rd_io_service_bytes_write; - RRDDIM *rd_io_serviced_write; - RRDDIM *rd_throttle_io_write; - RRDDIM *rd_throttle_io_serviced_write; - RRDDIM *rd_io_queued_write; - RRDDIM *rd_io_merged_write; - - struct cgroup *next; - -} *cgroup_root = NULL; - -// ---------------------------------------------------------------------------- -// read values from /sys - -static inline void cgroup_read_cpuacct_stat(struct cpuacct_stat *cp) { - static procfile *ff = NULL; - - if(likely(cp->filename)) { - ff = procfile_reopen(ff, cp->filename, NULL, PROCFILE_FLAG_DEFAULT); - if(unlikely(!ff)) { - cp->updated = 0; - cgroups_check = 1; - return; - } - - ff = procfile_readall(ff); - if(unlikely(!ff)) { - cp->updated = 0; - cgroups_check = 1; - return; - } - - unsigned long i, lines = procfile_lines(ff); - - if(unlikely(lines < 1)) { - error("CGROUP: file '%s' should have 1+ lines.", cp->filename); - cp->updated = 0; - return; - } - - for(i = 0; i < lines ; i++) { - char *s = procfile_lineword(ff, i, 0); - uint32_t hash = simple_hash(s); - - if(unlikely(hash == user_hash && !strcmp(s, "user"))) - cp->user = str2ull(procfile_lineword(ff, i, 1)); - - else if(unlikely(hash == system_hash && !strcmp(s, "system"))) - cp->system = str2ull(procfile_lineword(ff, i, 1)); - } - - cp->updated = 1; - - if(unlikely(cp->enabled == CONFIG_BOOLEAN_AUTO && (cp->user || cp->system))) - cp->enabled = CONFIG_BOOLEAN_YES; - } -} - -static inline void cgroup_read_cpuacct_usage(struct cpuacct_usage *ca) { - static procfile *ff = NULL; - - if(likely(ca->filename)) { - ff = procfile_reopen(ff, ca->filename, NULL, PROCFILE_FLAG_DEFAULT); - if(unlikely(!ff)) { - ca->updated = 0; - cgroups_check = 1; - return; - } - - ff = procfile_readall(ff); - if(unlikely(!ff)) { - ca->updated = 0; - cgroups_check = 1; - return; - } - - if(unlikely(procfile_lines(ff) < 1)) { - error("CGROUP: file '%s' should have 1+ lines but has %zu.", ca->filename, procfile_lines(ff)); - ca->updated = 0; - return; - } - - unsigned long i = procfile_linewords(ff, 0); - if(unlikely(i == 0)) { - ca->updated = 0; - return; - } - - // we may have 1 more CPU reported - while(i > 0) { - char *s = procfile_lineword(ff, 0, i - 1); - if(!*s) i--; - else break; - } - - if(unlikely(i != ca->cpus)) { - freez(ca->cpu_percpu); - ca->cpu_percpu = mallocz(sizeof(unsigned long long) * i); - ca->cpus = (unsigned int)i; - } - - unsigned long long total = 0; - for(i = 0; i < ca->cpus ;i++) { - unsigned long long n = str2ull(procfile_lineword(ff, 0, i)); - ca->cpu_percpu[i] = n; - total += n; - } - - ca->updated = 1; - - if(unlikely(ca->enabled == CONFIG_BOOLEAN_AUTO && total)) - ca->enabled = CONFIG_BOOLEAN_YES; - } -} - -static inline void cgroup_read_blkio(struct blkio *io) { - if(unlikely(io->enabled == CONFIG_BOOLEAN_AUTO && io->delay_counter > 0)) { - io->delay_counter--; - return; - } - - if(likely(io->filename)) { - static procfile *ff = NULL; - - ff = procfile_reopen(ff, io->filename, NULL, PROCFILE_FLAG_DEFAULT); - if(unlikely(!ff)) { - io->updated = 0; - cgroups_check = 1; - return; - } - - ff = procfile_readall(ff); - if(unlikely(!ff)) { - io->updated = 0; - cgroups_check = 1; - return; - } - - unsigned long i, lines = procfile_lines(ff); - - if(unlikely(lines < 1)) { - error("CGROUP: file '%s' should have 1+ lines.", io->filename); - io->updated = 0; - return; - } - - io->Read = 0; - io->Write = 0; -/* - io->Sync = 0; - io->Async = 0; - io->Total = 0; -*/ - - for(i = 0; i < lines ; i++) { - char *s = procfile_lineword(ff, i, 1); - uint32_t hash = simple_hash(s); - - if(unlikely(hash == Read_hash && !strcmp(s, "Read"))) - io->Read += str2ull(procfile_lineword(ff, i, 2)); - - else if(unlikely(hash == Write_hash && !strcmp(s, "Write"))) - io->Write += str2ull(procfile_lineword(ff, i, 2)); - -/* - else if(unlikely(hash == Sync_hash && !strcmp(s, "Sync"))) - io->Sync += str2ull(procfile_lineword(ff, i, 2)); - - else if(unlikely(hash == Async_hash && !strcmp(s, "Async"))) - io->Async += str2ull(procfile_lineword(ff, i, 2)); - - else if(unlikely(hash == Total_hash && !strcmp(s, "Total"))) - io->Total += str2ull(procfile_lineword(ff, i, 2)); -*/ - } - - io->updated = 1; - - if(unlikely(io->enabled == CONFIG_BOOLEAN_AUTO)) { - if(unlikely(io->Read || io->Write)) - io->enabled = CONFIG_BOOLEAN_YES; - else - io->delay_counter = cgroup_recheck_zero_blkio_every_iterations; - } - } -} - -static inline void cgroup_read_memory(struct memory *mem) { - static procfile *ff = NULL; - - // read detailed ram usage - if(likely(mem->filename_detailed)) { - if(unlikely(mem->enabled_detailed == CONFIG_BOOLEAN_AUTO && mem->delay_counter_detailed > 0)) { - mem->delay_counter_detailed--; - goto memory_next; - } - - ff = procfile_reopen(ff, mem->filename_detailed, NULL, PROCFILE_FLAG_DEFAULT); - if(unlikely(!ff)) { - mem->updated_detailed = 0; - cgroups_check = 1; - goto memory_next; - } - - ff = procfile_readall(ff); - if(unlikely(!ff)) { - mem->updated_detailed = 0; - cgroups_check = 1; - goto memory_next; - } - - unsigned long i, lines = procfile_lines(ff); - - if(unlikely(lines < 1)) { - error("CGROUP: file '%s' should have 1+ lines.", mem->filename_detailed); - mem->updated_detailed = 0; - goto memory_next; - } - - if(unlikely(!mem->arl_base)) { - mem->arl_base = arl_create("cgroup/memory", NULL, 60); - - arl_expect(mem->arl_base, "cache", &mem->cache); - arl_expect(mem->arl_base, "rss", &mem->rss); - arl_expect(mem->arl_base, "rss_huge", &mem->rss_huge); - arl_expect(mem->arl_base, "mapped_file", &mem->mapped_file); - arl_expect(mem->arl_base, "writeback", &mem->writeback); - mem->arl_dirty = arl_expect(mem->arl_base, "dirty", &mem->dirty); - mem->arl_swap = arl_expect(mem->arl_base, "swap", &mem->swap); - arl_expect(mem->arl_base, "pgpgin", &mem->pgpgin); - arl_expect(mem->arl_base, "pgpgout", &mem->pgpgout); - arl_expect(mem->arl_base, "pgfault", &mem->pgfault); - arl_expect(mem->arl_base, "pgmajfault", &mem->pgmajfault); - } - - arl_begin(mem->arl_base); - - for(i = 0; i < lines ; i++) { - if(arl_check(mem->arl_base, - procfile_lineword(ff, i, 0), - procfile_lineword(ff, i, 1))) break; - } - - if(unlikely(mem->arl_dirty->flags & ARL_ENTRY_FLAG_FOUND)) - mem->detailed_has_dirty = 1; - - if(unlikely(mem->arl_swap->flags & ARL_ENTRY_FLAG_FOUND)) - mem->detailed_has_swap = 1; - - // fprintf(stderr, "READ: '%s', cache: %llu, rss: %llu, rss_huge: %llu, mapped_file: %llu, writeback: %llu, dirty: %llu, swap: %llu, pgpgin: %llu, pgpgout: %llu, pgfault: %llu, pgmajfault: %llu, inactive_anon: %llu, active_anon: %llu, inactive_file: %llu, active_file: %llu, unevictable: %llu, hierarchical_memory_limit: %llu, total_cache: %llu, total_rss: %llu, total_rss_huge: %llu, total_mapped_file: %llu, total_writeback: %llu, total_dirty: %llu, total_swap: %llu, total_pgpgin: %llu, total_pgpgout: %llu, total_pgfault: %llu, total_pgmajfault: %llu, total_inactive_anon: %llu, total_active_anon: %llu, total_inactive_file: %llu, total_active_file: %llu, total_unevictable: %llu\n", mem->filename, mem->cache, mem->rss, mem->rss_huge, mem->mapped_file, mem->writeback, mem->dirty, mem->swap, mem->pgpgin, mem->pgpgout, mem->pgfault, mem->pgmajfault, mem->inactive_anon, mem->active_anon, mem->inactive_file, mem->active_file, mem->unevictable, mem->hierarchical_memory_limit, mem->total_cache, mem->total_rss, mem->total_rss_huge, mem->total_mapped_file, mem->total_writeback, mem->total_dirty, mem->total_swap, mem->total_pgpgin, mem->total_pgpgout, mem->total_pgfault, mem->total_pgmajfault, mem->total_inactive_anon, mem->total_active_anon, mem->total_inactive_file, mem->total_active_file, mem->total_unevictable); - - mem->updated_detailed = 1; - - if(unlikely(mem->enabled_detailed == CONFIG_BOOLEAN_AUTO)) { - if(mem->cache || mem->dirty || mem->rss || mem->rss_huge || mem->mapped_file || mem->writeback || mem->swap || mem->pgpgin || mem->pgpgout || mem->pgfault || mem->pgmajfault) - mem->enabled_detailed = CONFIG_BOOLEAN_YES; - else - mem->delay_counter_detailed = cgroup_recheck_zero_mem_detailed_every_iterations; - } - } - -memory_next: - - // read usage_in_bytes - if(likely(mem->filename_usage_in_bytes)) { - mem->updated_usage_in_bytes = !read_single_number_file(mem->filename_usage_in_bytes, &mem->usage_in_bytes); - if(unlikely(mem->updated_usage_in_bytes && mem->enabled_usage_in_bytes == CONFIG_BOOLEAN_AUTO && mem->usage_in_bytes)) - mem->enabled_usage_in_bytes = CONFIG_BOOLEAN_YES; - } - - // read msw_usage_in_bytes - if(likely(mem->filename_msw_usage_in_bytes)) { - mem->updated_msw_usage_in_bytes = !read_single_number_file(mem->filename_msw_usage_in_bytes, &mem->msw_usage_in_bytes); - if(unlikely(mem->updated_msw_usage_in_bytes && mem->enabled_msw_usage_in_bytes == CONFIG_BOOLEAN_AUTO && mem->msw_usage_in_bytes)) - mem->enabled_msw_usage_in_bytes = CONFIG_BOOLEAN_YES; - } - - // read failcnt - if(likely(mem->filename_failcnt)) { - if(unlikely(mem->enabled_failcnt == CONFIG_BOOLEAN_AUTO && mem->delay_counter_failcnt > 0)) { - mem->updated_failcnt = 0; - mem->delay_counter_failcnt--; - } - else { - mem->updated_failcnt = !read_single_number_file(mem->filename_failcnt, &mem->failcnt); - if(unlikely(mem->updated_failcnt && mem->enabled_failcnt == CONFIG_BOOLEAN_AUTO)) { - if(unlikely(!mem->failcnt)) - mem->delay_counter_failcnt = cgroup_recheck_zero_mem_failcnt_every_iterations; - else - mem->enabled_failcnt = CONFIG_BOOLEAN_YES; - } - } - } -} - -static inline void cgroup_read(struct cgroup *cg) { - debug(D_CGROUP, "reading metrics for cgroups '%s'", cg->id); - - cgroup_read_cpuacct_stat(&cg->cpuacct_stat); - cgroup_read_cpuacct_usage(&cg->cpuacct_usage); - cgroup_read_memory(&cg->memory); - cgroup_read_blkio(&cg->io_service_bytes); - cgroup_read_blkio(&cg->io_serviced); - cgroup_read_blkio(&cg->throttle_io_service_bytes); - cgroup_read_blkio(&cg->throttle_io_serviced); - cgroup_read_blkio(&cg->io_merged); - cgroup_read_blkio(&cg->io_queued); -} - -static inline void read_all_cgroups(struct cgroup *root) { - debug(D_CGROUP, "reading metrics for all cgroups"); - - struct cgroup *cg; - - for(cg = root; cg ; cg = cg->next) - if(cg->enabled && cg->available) - cgroup_read(cg); -} - -// ---------------------------------------------------------------------------- -// cgroup network interfaces - -#define CGROUP_NETWORK_INTERFACE_MAX_LINE 2048 -static inline void read_cgroup_network_interfaces(struct cgroup *cg) { - debug(D_CGROUP, "looking for the network interfaces of cgroup '%s' with chart id '%s' and title '%s'", cg->id, cg->chart_id, cg->chart_title); - - pid_t cgroup_pid; - char command[CGROUP_NETWORK_INTERFACE_MAX_LINE + 1]; - - snprintfz(command, CGROUP_NETWORK_INTERFACE_MAX_LINE, "exec %s --cgroup '%s%s'", cgroups_network_interface_script, cgroup_cpuacct_base, cg->id); - - debug(D_CGROUP, "executing command '%s' for cgroup '%s'", command, cg->id); - FILE *fp = mypopen(command, &cgroup_pid); - if(!fp) { - error("CGROUP: cannot popen(\"%s\", \"r\").", command); - return; - } - - char *s; - char buffer[CGROUP_NETWORK_INTERFACE_MAX_LINE + 1]; - while((s = fgets(buffer, CGROUP_NETWORK_INTERFACE_MAX_LINE, fp))) { - trim(s); - - if(*s && *s != '\n') { - char *t = s; - while(*t && *t != ' ') t++; - if(*t == ' ') { - *t = '\0'; - t++; - } - - if(!*s) { - error("CGROUP: empty host interface returned by script"); - continue; - } - - if(!*t) { - error("CGROUP: empty guest interface returned by script"); - continue; - } - - struct cgroup_network_interface *i = callocz(1, sizeof(struct cgroup_network_interface)); - i->host_device = strdupz(s); - i->container_device = strdupz(t); - i->next = cg->interfaces; - cg->interfaces = i; - - info("CGROUP: cgroup '%s' has network interface '%s' as '%s'", cg->id, i->host_device, i->container_device); - - // register a device rename to proc_net_dev.c - netdev_rename_device_add(i->host_device, i->container_device, cg->chart_id); - } - } - - mypclose(fp, cgroup_pid); - // debug(D_CGROUP, "closed command for cgroup '%s'", cg->id); -} - -static inline void free_cgroup_network_interfaces(struct cgroup *cg) { - while(cg->interfaces) { - struct cgroup_network_interface *i = cg->interfaces; - cg->interfaces = i->next; - - // delete the registration of proc_net_dev rename - netdev_rename_device_del(i->host_device); - - freez((void *)i->host_device); - freez((void *)i->container_device); - freez((void *)i); - } -} - -// ---------------------------------------------------------------------------- -// add/remove/find cgroup objects - -#define CGROUP_CHARTID_LINE_MAX 1024 - -static inline char *cgroup_title_strdupz(const char *s) { - if(!s || !*s) s = "/"; - - if(*s == '/' && s[1] != '\0') s++; - - char *r = strdupz(s); - netdata_fix_chart_name(r); - - return r; -} - -static inline char *cgroup_chart_id_strdupz(const char *s) { - if(!s || !*s) s = "/"; - - if(*s == '/' && s[1] != '\0') s++; - - char *r = strdupz(s); - netdata_fix_chart_id(r); - - return r; -} - -static inline void cgroup_get_chart_name(struct cgroup *cg) { - debug(D_CGROUP, "looking for the name of cgroup '%s' with chart id '%s' and title '%s'", cg->id, cg->chart_id, cg->chart_title); - - pid_t cgroup_pid; - char command[CGROUP_CHARTID_LINE_MAX + 1]; - - snprintfz(command, CGROUP_CHARTID_LINE_MAX, "exec %s '%s' '%s'", cgroups_rename_script, cg->chart_id, cg->id); - - debug(D_CGROUP, "executing command \"%s\" for cgroup '%s'", command, cg->id); - FILE *fp = mypopen(command, &cgroup_pid); - if(fp) { - // debug(D_CGROUP, "reading from command '%s' for cgroup '%s'", command, cg->id); - char buffer[CGROUP_CHARTID_LINE_MAX + 1]; - char *s = fgets(buffer, CGROUP_CHARTID_LINE_MAX, fp); - // debug(D_CGROUP, "closing command for cgroup '%s'", cg->id); - mypclose(fp, cgroup_pid); - // debug(D_CGROUP, "closed command for cgroup '%s'", cg->id); - - if(s && *s && *s != '\n') { - debug(D_CGROUP, "cgroup '%s' should be renamed to '%s'", cg->id, s); - - trim(s); - - freez(cg->chart_title); - cg->chart_title = cgroup_title_strdupz(s); - - freez(cg->chart_id); - cg->chart_id = cgroup_chart_id_strdupz(s); - cg->hash_chart = simple_hash(cg->chart_id); - } - } - else - error("CGROUP: cannot popen(\"%s\", \"r\").", command); -} - -static inline struct cgroup *cgroup_add(const char *id) { - if(!id || !*id) id = "/"; - debug(D_CGROUP, "adding to list, cgroup with id '%s'", id); - - if(cgroup_root_count >= cgroup_root_max) { - info("CGROUP: maximum number of cgroups reached (%d). Not adding cgroup '%s'", cgroup_root_count, id); - return NULL; - } - - int def = simple_pattern_matches(enabled_cgroup_patterns, id)?cgroup_enable_new_cgroups_detected_at_runtime:0; - struct cgroup *cg = callocz(1, sizeof(struct cgroup)); - - cg->id = strdupz(id);< |