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Adding d/p/25_check_mysql_replica from upstream (Closes: #1116027)

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Jan Wagner 2025-09-25 10:09:01 +02:00
parent 223a2060cb
commit dd1efc8f1b
2 changed files with 78 additions and 0 deletions
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77
debian/patches/25_check_mysql_replica vendored Normal file
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@ -0,0 +1,77 @@
From 4886fa3debf79aa2faac9d0180e8ddb4bb1d4aaa Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Lorenz=20K=C3=A4stle?=
<12514511+RincewindsHat@users.noreply.github.com>
Date: Mon, 24 Feb 2025 19:52:08 +0100
Subject: [PATCH] Add MySQL server version dectection and adaptive replica
query
---
Taken from https://github.com/monitoring-plugins/monitoring-plugins/commit/4886fa3debf79aa2faac9d0180e8ddb4bb1d4aaa.patch
---
plugins/check_mysql.c | 51 +++++++++++++++++++++++++++++++++++++++++--
1 file changed, 49 insertions(+), 2 deletions(-)
diff --git a/plugins/check_mysql.c b/plugins/check_mysql.c
index 6a7daf11a..1b7403f7b 100644
--- a/plugins/check_mysql.c
+++ b/plugins/check_mysql.c
@@ -211,8 +211,55 @@ main (int argc, char **argv)
}
if(check_slave) {
- /* check the slave status */
- if (mysql_query (&mysql, "show slave status") != 0) {
+ // Detect which version we are, on older version
+ // "show slave status" should work, on newer ones
+ // "show replica status"
+ // But first we have to find out whether this is
+ // MySQL or MariaDB since the version numbering scheme
+ // is different
+ bool use_deprecated_slave_status = false;
+ const char *server_version = mysql_get_server_info(&mysql);
+ unsigned long server_verion_int = mysql_get_server_version(&mysql);
+ unsigned long major_version = server_verion_int / 10000;
+ unsigned long minor_version = (server_verion_int % 10000) / 100;
+ unsigned long patch_version = (server_verion_int % 100);
+ if (verbose) {
+ printf("Found MariaDB: %s, main version: %lu, minor version: %lu, patch version: %lu\n", server_version, major_version,
+ minor_version, patch_version);
+ }
+
+ if (strstr(server_version, "MariaDB") != NULL) {
+ // Looks like MariaDB, new commands should be available after 10.5.1
+ if (major_version < 10) {
+ use_deprecated_slave_status = true;
+ } else if (major_version == 10) {
+ if (minor_version < 5) {
+ use_deprecated_slave_status = true;
+ } else if (minor_version == 5 && patch_version < 1) {
+ use_deprecated_slave_status = true;
+ }
+ }
+ } else if (strstr(server_version, "MySQL") != NULL) {
+ // Looks like MySQL
+ if (major_version < 8) {
+ use_deprecated_slave_status = true;
+ } else if (major_version == 10 && minor_version < 4) {
+ use_deprecated_slave_status = true;
+ }
+ } else {
+ printf("Not a known sever implementation: %s\n", server_version);
+ exit(STATE_UNKNOWN);
+ }
+
+ char *replica_query = NULL;
+ if (use_deprecated_slave_status) {
+ replica_query = "show slave status";
+ } else {
+ replica_query = "show replica status";
+ }
+
+ /* check the replica status */
+ if (mysql_query(&mysql, replica_query) != 0) {
error = strdup(mysql_error(&mysql));
mysql_close (&mysql);
die (STATE_CRITICAL, _("slave query error: %s\n"), error);

1
debian/patches/series vendored
View file

@ -17,4 +17,5 @@
22_check_by_ssh_missing_options
23_sslutils_fix_error_message
24_check_http_deprecation
25_check_mysql_replica
# feature patches