config: Document that 'mds_max_file_size' is only read on FS creation

Afterwards you have to change this through the monitors

diff --git a/src/common/config_opts.h b/src/common/config_opts.h
index 573f9e88383ec3667e9386168a1c5a210e7cf3a8..ee351bde6f8c5b3e8b610b35735c47af6f87a470 100644 (file)
--- a/src/common/config_opts.h
+++ b/src/common/config_opts.h
@@ -352,7 +352,7 @@ OPTION(journaler_prezero_periods, OPT_INT, 5)     // * journal object size
 OPTION(journaler_batch_interval, OPT_DOUBLE, .001)   // seconds.. max add latency we artificially incur
 OPTION(journaler_batch_max, OPT_U64, 0)  // max bytes we'll delay flushing; disable, for now....
 OPTION(mds_data, OPT_STR, "/var/lib/ceph/mds/$cluster-$id")
-OPTION(mds_max_file_size, OPT_U64, 1ULL << 40)
+OPTION(mds_max_file_size, OPT_U64, 1ULL << 40) // Used when creating new CephFS. Change with 'ceph mds set max_file_size <size>' afterwards
 OPTION(mds_cache_size, OPT_INT, 100000)
 OPTION(mds_cache_mid, OPT_FLOAT, .7)
 OPTION(mds_max_file_recover, OPT_U32, 32)