Add a bit of documentation.

4 files changed, 16 insertions, 4 deletions

diff --git a/tools/merge_backup.py b/tools/merge_backup.py
index 2c17d90..e7cce26 100755
--- a/tools/merge_backup.py
+++ b/tools/merge_backup.py
@@ -3,7 +3,10 @@
 #
 # Copyright (c) 2014-2015, NORDUnet A/S.
 # See LICENSE for licensing information.
-
+#
+# Copy entries indicated by file 'fetched' to all secondary merge nodes.
+# See catlfish/doc/merge.txt for more about the merge process.
+#
 import sys
 import base64
 import select
diff --git a/tools/merge_dist.py b/tools/merge_dist.py
index ded25a1..6582eff 100755
--- a/tools/merge_dist.py
+++ b/tools/merge_dist.py
@@ -3,7 +3,10 @@
 #
 # Copyright (c) 2014-2015, NORDUnet A/S.
 # See LICENSE for licensing information.
-
+#
+# Distribute the 'sth' file and all missing entries to all frontend nodes.
+# See catlfish/doc/merge.txt for more about the merge process.
+#
 import sys
 import json
 import base64
diff --git a/tools/merge_fetch.py b/tools/merge_fetch.py
index ddd2f06..8c3a997 100755
--- a/tools/merge_fetch.py
+++ b/tools/merge_fetch.py
@@ -3,7 +3,10 @@
 #
 # Copyright (c) 2014-2015, NORDUnet A/S.
 # See LICENSE for licensing information.
-
+#
+# Fetch new entries from all storage nodes.
+# See catlfish/doc/merge.txt for more about the merge process.
+#
 import sys
 import struct
 import subprocess
diff --git a/tools/merge_sth.py b/tools/merge_sth.py
index 28ad34f..f4aec53 100755
--- a/tools/merge_sth.py
+++ b/tools/merge_sth.py
@@ -3,7 +3,10 @@
 #
 # Copyright (c) 2014-2015, NORDUnet A/S.
 # See LICENSE for licensing information.
-
+#
+# Generate a new 'sth' file.
+# See catlfish/doc/merge.txt for more about the merge process.
+#
 import sys
 import json
 import urllib2