Backport: trackers: bump MI version to 4.0

[deliverable/lttng-tools.git] / src / common / defaults.h

diff --git a/src/common/defaults.h b/src/common/defaults.h
index 71a1194217ffa0f0795f49e94614d4fcb7370fa1..f504f4d7834240cb35db840ae368da12e35c7ffe 100644 (file)
--- a/src/common/defaults.h
+++ b/src/common/defaults.h
@@ -90,7 +90,20 @@
 #define DEFAULT_RELAYD_RUNDIR                  "%s"
 #define DEFAULT_RELAYD_PATH                    DEFAULT_RELAYD_RUNDIR "/relayd"
 
-#define DEFAULT_RELAYD_MINIMAL_FD_CAP          30
+#define DEFAULT_RELAYD_MIN_FD_POOL_SIZE                100
+/*
+ * The file descriptor pool size needs a reserve buffer to accomodate the
+ * indirect use of short-lived file descriptors. For instance, glibc will
+ * create a socket (and thus, use an fd) during calls to gethostname() or
+ * when querying the user's group. Other calls also probably make use of
+ * short-lived FDs.
+ *
+ * The theoritical maximal reserve corresponds to the number of threads as,
+ * in the worst case, they could all be making such calls.
+ *
+ * This value must be less than DEFAULT_RELAYD_MIN_FD_POOL_SIZE.
+ */
+#define DEFAULT_RELAYD_FD_POOL_SIZE_RESERVE    10
 
 /* Default lttng run directory */
 #define DEFAULT_LTTNG_HOME_ENV_VAR              "LTTNG_HOME"
@@ -314,7 +327,7 @@
 #define DEFAULT_RUN_AS_WORKER_NAME                     "lttng-runas"
 
 /* Default LTTng MI XML namespace. */
-#define DEFAULT_LTTNG_MI_NAMESPACE             "http://lttng.org/xml/ns/lttng-mi"
+#define DEFAULT_LTTNG_MI_NAMESPACE             "https://lttng.org/xml/ns/lttng-mi"
 
 /* Default thread stack size; the default mandated by pthread_create(3) */
 #define DEFAULT_LTTNG_THREAD_STACK_SIZE                2097152