journald: Log error when failed to get machine-id on start

[elogind.git] / src / journal / journald-server.c

diff --git a/src/journal/journald-server.c b/src/journal/journald-server.c
index 60c32b1eff28797e7abc3e6c50b2e9780138aa07..ba211b3724f99fe8518fe430472efc60419ea1c9 100644 (file)
--- a/src/journal/journald-server.c
+++ b/src/journal/journald-server.c
@@ -352,13 +352,12 @@ void server_rotate(Server *s) {
 }
 
 void server_sync(Server *s) {
+        static const struct itimerspec sync_timer_disable = {};
         JournalFile *f;
         void *k;
         Iterator i;
         int r;
 
-        static const struct itimerspec sync_timer_disable = {};
-
         if (s->system_journal) {
                 r = journal_file_set_offline(s->system_journal);
                 if (r < 0)
@@ -443,7 +442,7 @@ bool shall_try_append_again(JournalFile *f, int r) {
         return true;
 }
 
-static void write_to_journal(Server *s, uid_t uid, struct iovec *iovec, unsigned n) {
+static void write_to_journal(Server *s, uid_t uid, struct iovec *iovec, unsigned n, int priority) {
         JournalFile *f;
         bool vacuumed = false;
         int r;
@@ -469,7 +468,7 @@ static void write_to_journal(Server *s, uid_t uid, struct iovec *iovec, unsigned
 
         r = journal_file_append_entry(f, NULL, iovec, n, &s->seqnum, NULL, NULL);
         if (r >= 0) {
-                server_schedule_sync(s);
+                server_schedule_sync(s, priority);
                 return;
         }
 
@@ -499,7 +498,8 @@ static void write_to_journal(Server *s, uid_t uid, struct iovec *iovec, unsigned
                         size += iovec[i].iov_len;
 
                 log_error("Failed to write entry (%d items, %zu bytes) despite vacuuming, ignoring: %s", n, size, strerror(-r));
-        }
+        } else
+                server_schedule_sync(s, priority);
 }
 
 static void dispatch_message_real(
@@ -509,6 +509,7 @@ static void dispatch_message_real(
                 struct timeval *tv,
                 const char *label, size_t label_len,
                 const char *unit_id,
+                int priority,
                 pid_t object_pid) {
 
         char    pid[sizeof("_PID=") + DECIMAL_STR_MAX(pid_t)],
@@ -523,7 +524,6 @@ static void dispatch_message_real(
                 o_owner_uid[sizeof("OBJECT_SYSTEMD_OWNER_UID=") + DECIMAL_STR_MAX(uid_t)];
         uid_t object_uid;
         gid_t object_gid;
-
         char *x;
         sd_id128_t id;
         int r;
@@ -786,7 +786,7 @@ static void dispatch_message_real(
         else
                 journal_uid = 0;
 
-        write_to_journal(s, journal_uid, iovec, n);
+        write_to_journal(s, journal_uid, iovec, n, priority);
 }
 
 void server_driver_message(Server *s, sd_id128_t message_id, const char *format, ...) {
@@ -820,7 +820,7 @@ void server_driver_message(Server *s, sd_id128_t message_id, const char *format,
         ucred.uid = getuid();
         ucred.gid = getgid();
 
-        dispatch_message_real(s, iovec, n, ELEMENTSOF(iovec), &ucred, NULL, NULL, 0, NULL, 0);
+        dispatch_message_real(s, iovec, n, ELEMENTSOF(iovec), &ucred, NULL, NULL, 0, NULL, LOG_INFO, 0);
 }
 
 void server_dispatch_message(
@@ -886,7 +886,7 @@ void server_dispatch_message(
                                       "Suppressed %u messages from %s", rl - 1, path);
 
 finish:
-        dispatch_message_real(s, iovec, n, m, ucred, tv, label, label_len, unit_id, object_pid);
+        dispatch_message_real(s, iovec, n, m, ucred, tv, label, label_len, unit_id, priority, object_pid);
 }
 
 
@@ -897,8 +897,10 @@ static int system_journal_open(Server *s) {
         char ids[33];
 
         r = sd_id128_get_machine(&machine);
-        if (r < 0)
+        if (r < 0) {
+                log_error("Failed to get machine id: %s", strerror(-r));
                 return r;
+        }
 
         sd_id128_to_string(machine, ids);
 
@@ -1000,10 +1002,8 @@ int server_flush_to_var(Server *s) {
         log_debug("Flushing to /var...");
 
         r = sd_id128_get_machine(&machine);
-        if (r < 0) {
-                log_error("Failed to get machine id: %s", strerror(-r));
+        if (r < 0)
                 return r;
-        }
 
         r = sd_journal_open(&j, SD_JOURNAL_RUNTIME_ONLY);
         if (r < 0) {
@@ -1092,6 +1092,8 @@ int process_event(Server *s, struct epoll_event *ev) {
                 }
 
                 if (sfsi.ssi_signo == SIGUSR1) {
+                        log_info("Received request to flush runtime journal from PID %"PRIu32,
+                                 sfsi.ssi_pid);
                         touch("/run/systemd/journal/flushed");
                         server_flush_to_var(s);
                         server_sync(s);
@@ -1099,6 +1101,8 @@ int process_event(Server *s, struct epoll_event *ev) {
                 }
 
                 if (sfsi.ssi_signo == SIGUSR2) {
+                        log_info("Received request to rotate journal from PID %"PRIu32,
+                                 sfsi.ssi_pid);
                         server_rotate(s);
                         server_vacuum(s);
                         return 1;
@@ -1237,15 +1241,8 @@ int process_event(Server *s, struct epoll_event *ev) {
                         }
 
                         if (ev->data.fd == s->syslog_fd) {
-                                char *e;
-
                                 if (n > 0 && n_fds == 0) {
-                                        e = memchr(s->buffer, '\n', n);
-                                        if (e)
-                                                *e = 0;
-                                        else
-                                                s->buffer[n] = 0;
-
+                                        s->buffer[n] = 0;
                                         server_process_syslog_message(s, strstrip(s->buffer), ucred, tv, label, label_len);
                                 } else if (n_fds > 0)
                                         log_warning("Got file descriptors via syslog socket. Ignoring.");
@@ -1423,11 +1420,17 @@ static int server_open_sync_timer(Server *s) {
         return 0;
 }
 
-int server_schedule_sync(Server *s) {
+int server_schedule_sync(Server *s, int priority) {
         int r;
 
         assert(s);
 
+        if (priority <= LOG_CRIT) {
+                /* Immediately sync to disk when this is of priority CRIT, ALERT, EMERG */
+                server_sync(s);
+                return 0;
+        }
+
         if (s->sync_scheduled)
                 return 0;