From 6e8318f72ffc26463748daecbc33a069dc748008 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Markus=20M=C3=A4kel=C3=A4?= <markus.makela@mariadb.com>
Date: Wed, 8 Jan 2020 15:29:07 +0200
Subject: [PATCH] MXS-2829: Remove config file when deleting a filter

---
 server/core/filter.cc | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/server/core/filter.cc b/server/core/filter.cc
index d115c24ba..3da885179 100644
--- a/server/core/filter.cc
+++ b/server/core/filter.cc
@@ -181,6 +181,16 @@ void filter_destroy(const SFilterDef& filter)
 {
     mxb_assert(filter);
     mxb_assert(filter_can_be_destroyed(filter));
+
+    char filename[PATH_MAX + 1];
+    snprintf(filename, sizeof(filename), "%s/%s.cnf", get_config_persistdir(), filter->name.c_str());
+
+    if (unlink(filename) == -1 && errno != ENOENT)
+    {
+        MXS_ERROR("Failed to remove persisted filter configuration at '%s': %d, %s",
+                  filename, errno, mxs_strerror(errno));
+    }
+
     filter_free(filter);
 }