From: Jason Ish <ish@unx.ca>
Date: Mon, 11 Feb 2019 15:36:42 +0000 (-0600)
Subject: Free some collection types before testing Suricata
X-Git-Tag: 1.1.0rc1~35
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5cea9cf4f29fca00ede5c0882f2f9356415f3aba;p=thirdparty%2Fsuricata-update.git

Free some collection types before testing Suricata

Forces Python to free up some memory before starting Suricata
which may use a lot of memory itself.

Fixup for low memory devices.

Redmine issue:
https://redmine.openinfosecfoundation.org/issues/2791
---

diff --git a/suricata/update/main.py b/suricata/update/main.py
index 3a67208..66fe21d 100644
--- a/suricata/update/main.py
+++ b/suricata/update/main.py
@@ -1425,6 +1425,14 @@ def _main():
         notes.dump_notes()
         return 0
 
+    # Set these containers to None to fee the memory before testing Suricata which
+    # may consume a lot of memory by itself. Ideally we should refactor this large
+    # function into multiple methods so these go out of scope and get removed
+    # automatically.
+    rulemap = None
+    rules = None
+    files = None
+
     if not test_suricata(suricata_path):
         logger.error("Suricata test failed, aborting.")
         logger.error("Restoring previous rules.")