Fix: use biggest subbuffer size for snapshot max-size

[lttng-tools.git] / src / bin / lttng / commands / snapshot.c

diff --git a/src/bin/lttng/commands/snapshot.c b/src/bin/lttng/commands/snapshot.c
index 94deb0cfa2eb0f06acd61cd68daf5efc9ac51874..2d250afc37cfb01df040159936dcbef24444f90d 100644 (file)
--- a/src/bin/lttng/commands/snapshot.c
+++ b/src/bin/lttng/commands/snapshot.c
@@ -372,6 +372,11 @@ static int record(const char *url)
 
        ret = lttng_snapshot_record(current_session_name, output, 0);
        if (ret < 0) {
+               if (ret == -LTTNG_ERR_MAX_SIZE_INVALID) {
+                       ERR("The minimum size of a snapshot is computed by multiplying "
+                                       "the total amount of streams with the largest subbuffer "
+                                       "in the session.");
+               }
                goto error;
        }