mds: change default mds_max_export_size to 20M

1G seems too large. mds may speed long time on processing
imported/expored subtree.

Signed-off-by: "Yan, Zheng" <zyan@redhat.com>

diff --git a/src/common/options.cc b/src/common/options.cc
index 455edf9aee4938dc83d8cadec23731cdd3cd6f38..bf37f3faf0169412567b5d2366af7d919f081285 100644 (file)
--- a/src/common/options.cc
+++ b/src/common/options.cc
@@ -6996,7 +6996,7 @@ std::vector<Option> get_mds_options() {
     .set_description(""),
 
     Option("mds_max_export_size", Option::TYPE_SIZE, Option::LEVEL_DEV)
-    .set_default(1_G)
+    .set_default(20_M)
     .set_description(""),
 
     Option("mds_kill_export_at", Option::TYPE_INT, Option::LEVEL_DEV)