mirror of
https://github.com/systemd/systemd
synced 2024-09-06 00:41:36 +00:00
journal: introduce JournalStorage and JournalStorageSpace structures
This structure keeps track of specificities for a given journal type (persistent or volatile) such as metrics, name, etc... The cached space values are now moved in this structure so that each journal has its own set of cached values. Previously only one set existed and we didn't know if the cached values were for the runtime journal or the persistent one. When doing: determine_space_for(s, runtime_metrics, ...); determine_space_for(s, system_metrics, ...); the second call returned the cached values for the runtime metrics.
This commit is contained in:
parent
e0ed6db9cd
commit
266a470005
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@ -23,14 +23,14 @@ Journal.SyncIntervalSec, config_parse_sec, 0, offsetof(Server, sync_in
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Journal.RateLimitInterval, config_parse_sec, 0, offsetof(Server, rate_limit_interval)
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Journal.RateLimitIntervalSec,config_parse_sec, 0, offsetof(Server, rate_limit_interval)
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Journal.RateLimitBurst, config_parse_unsigned, 0, offsetof(Server, rate_limit_burst)
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Journal.SystemMaxUse, config_parse_iec_uint64, 0, offsetof(Server, system_metrics.max_use)
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Journal.SystemMaxFileSize, config_parse_iec_uint64, 0, offsetof(Server, system_metrics.max_size)
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Journal.SystemKeepFree, config_parse_iec_uint64, 0, offsetof(Server, system_metrics.keep_free)
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Journal.SystemMaxFiles, config_parse_uint64, 0, offsetof(Server, system_metrics.n_max_files)
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Journal.RuntimeMaxUse, config_parse_iec_uint64, 0, offsetof(Server, runtime_metrics.max_use)
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Journal.RuntimeMaxFileSize, config_parse_iec_uint64, 0, offsetof(Server, runtime_metrics.max_size)
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Journal.RuntimeKeepFree, config_parse_iec_uint64, 0, offsetof(Server, runtime_metrics.keep_free)
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Journal.RuntimeMaxFiles, config_parse_uint64, 0, offsetof(Server, runtime_metrics.n_max_files)
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Journal.SystemMaxUse, config_parse_iec_uint64, 0, offsetof(Server, system_storage.metrics.max_use)
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Journal.SystemMaxFileSize, config_parse_iec_uint64, 0, offsetof(Server, system_storage.metrics.max_size)
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Journal.SystemKeepFree, config_parse_iec_uint64, 0, offsetof(Server, system_storage.metrics.keep_free)
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Journal.SystemMaxFiles, config_parse_uint64, 0, offsetof(Server, system_storage.metrics.n_max_files)
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Journal.RuntimeMaxUse, config_parse_iec_uint64, 0, offsetof(Server, runtime_storage.metrics.max_use)
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Journal.RuntimeMaxFileSize, config_parse_iec_uint64, 0, offsetof(Server, runtime_storage.metrics.max_size)
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Journal.RuntimeKeepFree, config_parse_iec_uint64, 0, offsetof(Server, runtime_storage.metrics.keep_free)
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Journal.RuntimeMaxFiles, config_parse_uint64, 0, offsetof(Server, runtime_storage.metrics.n_max_files)
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Journal.MaxRetentionSec, config_parse_sec, 0, offsetof(Server, max_retention_usec)
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Journal.MaxFileSec, config_parse_sec, 0, offsetof(Server, max_file_usec)
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Journal.ForwardToSyslog, config_parse_bool, 0, offsetof(Server, forward_to_syslog)
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@ -90,19 +90,17 @@ static int determine_path_usage(Server *s, const char *path, uint64_t *ret_used,
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_cleanup_closedir_ DIR *d = NULL;
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struct dirent *de;
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struct statvfs ss;
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const char *p;
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assert(ret_used);
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assert(ret_free);
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p = strjoina(path, SERVER_MACHINE_ID(s));
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d = opendir(p);
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d = opendir(path);
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if (!d)
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return log_full_errno(errno == ENOENT ? LOG_DEBUG : LOG_ERR,
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errno, "Failed to open %s: %m", p);
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errno, "Failed to open %s: %m", path);
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if (fstatvfs(dirfd(d), &ss) < 0)
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return log_error_errno(errno, "Failed to fstatvfs(%s): %m", p);
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return log_error_errno(errno, "Failed to fstatvfs(%s): %m", path);
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*ret_free = ss.f_bsize * ss.f_bavail;
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*ret_used = 0;
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@ -114,7 +112,7 @@ static int determine_path_usage(Server *s, const char *path, uint64_t *ret_used,
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continue;
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if (fstatat(dirfd(d), de->d_name, &st, AT_SYMLINK_NOFOLLOW) < 0) {
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log_debug_errno(errno, "Failed to stat %s/%s, ignoring: %m", p, de->d_name);
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log_debug_errno(errno, "Failed to stat %s/%s, ignoring: %m", path, de->d_name);
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continue;
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}
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@ -129,9 +127,7 @@ static int determine_path_usage(Server *s, const char *path, uint64_t *ret_used,
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static int determine_space_for(
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Server *s,
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JournalMetrics *metrics,
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const char *path,
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const char *name,
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JournalStorage *storage,
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bool verbose,
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bool patch_min_use,
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uint64_t *available,
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@ -139,22 +135,25 @@ static int determine_space_for(
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uint64_t sum, avail, ss_avail;
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_cleanup_closedir_ DIR *d = NULL;
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JournalMetrics *metrics;
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const char *path, *name;
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usec_t ts;
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int r;
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assert(s);
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assert(metrics);
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assert(path);
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assert(name);
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name = storage->name;
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path = storage->path;
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metrics = &storage->metrics;
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ts = now(CLOCK_MONOTONIC);
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if (!verbose && s->cached_space_timestamp + RECHECK_SPACE_USEC > ts) {
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if (!verbose && storage->space.timestamp + RECHECK_SPACE_USEC > ts) {
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if (available)
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*available = s->cached_space_available;
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*available = storage->space.available;
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if (limit)
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*limit = s->cached_space_limit;
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*limit = storage->space.limit;
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return 0;
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}
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@ -175,9 +174,9 @@ static int determine_space_for(
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avail = LESS_BY(ss_avail, metrics->keep_free);
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s->cached_space_limit = MIN(MAX(sum + avail, metrics->min_use), metrics->max_use);
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s->cached_space_available = LESS_BY(s->cached_space_limit, sum);
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s->cached_space_timestamp = ts;
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storage->space.limit = MIN(MAX(sum + avail, metrics->min_use), metrics->max_use);
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storage->space.available = LESS_BY(storage->space.limit, sum);
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storage->space.timestamp = ts;
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if (verbose) {
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char fb1[FORMAT_BYTES_MAX], fb2[FORMAT_BYTES_MAX], fb3[FORMAT_BYTES_MAX],
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@ -186,8 +185,8 @@ static int determine_space_for(
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format_bytes(fb2, sizeof(fb2), metrics->max_use);
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format_bytes(fb3, sizeof(fb3), metrics->keep_free);
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format_bytes(fb4, sizeof(fb4), ss_avail);
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format_bytes(fb5, sizeof(fb5), s->cached_space_limit);
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format_bytes(fb6, sizeof(fb6), s->cached_space_available);
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format_bytes(fb5, sizeof(fb5), storage->space.limit);
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format_bytes(fb6, sizeof(fb6), storage->space.available);
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server_driver_message(s, SD_MESSAGE_JOURNAL_USAGE,
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LOG_MESSAGE("%s (%s) is %s, max %s, %s free.",
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@ -202,38 +201,28 @@ static int determine_space_for(
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"DISK_KEEP_FREE_PRETTY=%s", fb3,
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"DISK_AVAILABLE=%"PRIu64, ss_avail,
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"DISK_AVAILABLE_PRETTY=%s", fb4,
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"LIMIT=%"PRIu64, s->cached_space_limit,
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"LIMIT=%"PRIu64, storage->space.limit,
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"LIMIT_PRETTY=%s", fb5,
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"AVAILABLE=%"PRIu64, s->cached_space_available,
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"AVAILABLE=%"PRIu64, storage->space.available,
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"AVAILABLE_PRETTY=%s", fb6,
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NULL);
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}
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if (available)
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*available = s->cached_space_available;
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*available = storage->space.available;
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if (limit)
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*limit = s->cached_space_limit;
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*limit = storage->space.limit;
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return 1;
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}
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static int determine_space(Server *s, bool verbose, bool patch_min_use, uint64_t *available, uint64_t *limit) {
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JournalMetrics *metrics;
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const char *path, *name;
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JournalStorage *js;
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assert(s);
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if (s->system_journal) {
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path = "/var/log/journal/";
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metrics = &s->system_metrics;
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name = "System journal";
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} else {
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path = "/run/log/journal/";
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metrics = &s->runtime_metrics;
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name = "Runtime journal";
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}
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return determine_space_for(s, metrics, path, name, verbose, patch_min_use, available, limit);
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js = s->system_journal ? &s->system_storage : &s->runtime_storage;
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return determine_space_for(s, js, verbose, patch_min_use, available, limit);
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}
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static void server_add_acls(JournalFile *f, uid_t uid) {
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@ -306,14 +295,13 @@ static int system_journal_open(Server *s, bool flush_requested) {
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if (s->storage == STORAGE_PERSISTENT)
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(void) mkdir_p("/var/log/journal/", 0755);
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fn = strjoina("/var/log/journal/", SERVER_MACHINE_ID(s));
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(void) mkdir(fn, 0755);
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(void) mkdir(s->system_storage.path, 0755);
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fn = strjoina(fn, "/system.journal");
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r = open_journal(s, true, fn, O_RDWR|O_CREAT, s->seal, &s->system_metrics, &s->system_journal);
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fn = strjoina(s->system_storage.path, "/system.journal");
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r = open_journal(s, true, fn, O_RDWR|O_CREAT, s->seal, &s->system_storage.metrics, &s->system_journal);
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if (r >= 0) {
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server_add_acls(s->system_journal, 0);
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(void) determine_space_for(s, &s->system_metrics, "/var/log/journal/", "System journal", true, true, NULL, NULL);
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(void) determine_space_for(s, &s->system_storage, true, true, NULL, NULL);
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} else if (r < 0) {
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if (r != -ENOENT && r != -EROFS)
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log_warning_errno(r, "Failed to open system journal: %m");
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if (!s->runtime_journal &&
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(s->storage != STORAGE_NONE)) {
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fn = strjoina("/run/log/journal/", SERVER_MACHINE_ID(s), "/system.journal");
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fn = strjoina(s->runtime_storage.path, "/system.journal");
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if (s->system_journal) {
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* if it already exists, so that we can flush
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* it into the system journal */
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r = open_journal(s, false, fn, O_RDWR, false, &s->runtime_metrics, &s->runtime_journal);
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r = open_journal(s, false, fn, O_RDWR, false, &s->runtime_storage.metrics, &s->runtime_journal);
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if (r < 0) {
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if (r != -ENOENT)
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log_warning_errno(r, "Failed to open runtime journal: %m");
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(void) mkdir("/run/log/journal", 0755);
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(void) mkdir_parents(fn, 0750);
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r = open_journal(s, true, fn, O_RDWR|O_CREAT, false, &s->runtime_metrics, &s->runtime_journal);
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r = open_journal(s, true, fn, O_RDWR|O_CREAT, false, &s->runtime_storage.metrics, &s->runtime_journal);
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if (r < 0)
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return log_error_errno(r, "Failed to open runtime journal: %m");
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}
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if (s->runtime_journal) {
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server_add_acls(s->runtime_journal, 0);
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(void) determine_space_for(s, &s->runtime_metrics, "/run/log/journal/", "Runtime journal", true, true, NULL, NULL);
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(void) determine_space_for(s, &s->runtime_storage, true, true, NULL, NULL);
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}
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}
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(void) journal_file_close(f);
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}
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r = open_journal(s, true, p, O_RDWR|O_CREAT, s->seal, &s->system_metrics, &f);
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r = open_journal(s, true, p, O_RDWR|O_CREAT, s->seal, &s->system_storage.metrics, &f);
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if (r < 0)
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return s->system_journal;
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@ -519,33 +507,28 @@ void server_sync(Server *s) {
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static void do_vacuum(
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Server *s,
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JournalFile *f,
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JournalMetrics *metrics,
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const char *path,
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const char *name,
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JournalStorage *storage,
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bool verbose,
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bool patch_min_use) {
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const char *p;
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JournalMetrics *metrics;
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uint64_t limit;
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int r;
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assert(s);
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assert(metrics);
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assert(path);
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assert(name);
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if (!f)
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return;
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p = strjoina(path, SERVER_MACHINE_ID(s));
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assert(storage);
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metrics = &storage->metrics;
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limit = metrics->max_use;
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(void) determine_space_for(s, metrics, path, name, verbose, patch_min_use, NULL, &limit);
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(void) determine_space_for(s, storage, verbose, patch_min_use, NULL, &limit);
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r = journal_directory_vacuum(p, limit, metrics->n_max_files, s->max_retention_usec, &s->oldest_file_usec, verbose);
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r = journal_directory_vacuum(storage->path, limit, metrics->n_max_files, s->max_retention_usec, &s->oldest_file_usec, verbose);
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if (r < 0 && r != -ENOENT)
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log_warning_errno(r, "Failed to vacuum %s, ignoring: %m", p);
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log_warning_errno(r, "Failed to vacuum %s, ignoring: %m", storage->path);
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storage->space.limit = 0;
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storage->space.available = 0;
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storage->space.timestamp = 0;
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}
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int server_vacuum(Server *s, bool verbose, bool patch_min_use) {
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@ -555,12 +538,10 @@ int server_vacuum(Server *s, bool verbose, bool patch_min_use) {
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s->oldest_file_usec = 0;
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do_vacuum(s, s->system_journal, &s->system_metrics, "/var/log/journal/", "System journal", verbose, patch_min_use);
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do_vacuum(s, s->runtime_journal, &s->runtime_metrics, "/run/log/journal/", "Runtime journal", verbose, patch_min_use);
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s->cached_space_limit = 0;
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s->cached_space_available = 0;
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s->cached_space_timestamp = 0;
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if (s->system_journal)
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do_vacuum(s, &s->system_storage, verbose, patch_min_use);
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if (s->runtime_journal)
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do_vacuum(s, &s->runtime_storage, verbose, patch_min_use);
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return 0;
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}
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@ -1888,8 +1869,8 @@ int server_init(Server *s) {
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s->max_level_console = LOG_INFO;
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s->max_level_wall = LOG_EMERG;
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journal_reset_metrics(&s->system_metrics);
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journal_reset_metrics(&s->runtime_metrics);
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journal_reset_metrics(&s->system_storage.metrics);
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journal_reset_metrics(&s->runtime_storage.metrics);
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server_parse_config_file(s);
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server_parse_proc_cmdline(s);
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@ -2042,6 +2023,14 @@ int server_init(Server *s) {
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server_cache_boot_id(s);
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server_cache_machine_id(s);
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s->runtime_storage.name = "Runtime journal";
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s->system_storage.name = "System journal";
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s->runtime_storage.path = strjoin("/run/log/journal/", SERVER_MACHINE_ID(s), NULL);
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s->system_storage.path = strjoin("/var/log/journal/", SERVER_MACHINE_ID(s), NULL);
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if (!s->runtime_storage.path || !s->system_storage.path)
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return -ENOMEM;
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(void) server_connect_notify(s);
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return system_journal_open(s, false);
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@ -49,6 +49,20 @@ typedef enum SplitMode {
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_SPLIT_INVALID = -1
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} SplitMode;
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typedef struct JournalStorageSpace {
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uint64_t available;
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uint64_t limit;
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usec_t timestamp;
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} JournalStorageSpace;
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typedef struct JournalStorage {
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const char *name;
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const char *path;
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JournalMetrics metrics;
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JournalStorageSpace space;
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} JournalStorage;
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struct Server {
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int syslog_fd;
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int native_fd;
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@ -89,8 +103,8 @@ struct Server {
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usec_t rate_limit_interval;
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unsigned rate_limit_burst;
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JournalMetrics runtime_metrics;
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JournalMetrics system_metrics;
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JournalStorage runtime_storage;
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JournalStorage system_storage;
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bool compress;
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bool seal;
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@ -103,10 +117,6 @@ struct Server {
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unsigned n_forward_syslog_missed;
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usec_t last_warn_forward_syslog_missed;
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uint64_t cached_space_available;
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uint64_t cached_space_limit;
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usec_t cached_space_timestamp;
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uint64_t var_available_timestamp;
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usec_t max_retention_usec;
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