diff --git a/files/test_config.ini b/files/test_config.ini
index 5dd70c64..1fb7b6fb 100644
--- a/files/test_config.ini
+++ b/files/test_config.ini
@@ -12,6 +12,18 @@ ENCRYPTION_BADKEY = NoSuchkey
 #
 MAX_TIME_FOR_WAIT_SEGMENT_IN_LOG = 65
 
+# Max limit, in seconds, to wait until message about adding segments to
+# processing queue.
+# Message looks like thos: 'Added N segment(s) to the processing queue'
+# For each such message, we make 'skip -2' lines in log
+# and parse timestamp where it occured. This timestamp must be *NEWER*
+# then timestamp that we stored before some DDL/DML action for which we want
+# to get info about adding segmnets to processing queue.
+# Currently this setting is used in 
+# functional/replication/test_shutdown_during_applying_segments_leads_to_crash.py 
+#
+MAX_TIME_FOR_WAIT_ADDED_TO_QUEUE = 65
+
 # Aliases for main and replica databases as they are defined in the pre-created
 # file <QA_root>/qa-databases.conf:
 #