X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=src%2Fcommon%2Fdefaults.h;h=2dff3908768ab24157dfd94cad012696520bcaa5;hb=47bd3dfaa9aec8fff131d7afd8d4c76a182aeccc;hp=71a1194217ffa0f0795f49e94614d4fcb7370fa1;hpb=a8a54a6fe7700df804a62097b628f53d1e3112a2;p=deliverable%2Flttng-tools.git

diff --git a/src/common/defaults.h b/src/common/defaults.h
index 71a119421..2dff39087 100644
--- 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"