From dd9d1d62074a14c180e6c7a4fc5c79780cec67ea Mon Sep 17 00:00:00 2001
From: Richard Treu <richard.treu@sap.com>
Date: Thu, 26 Sep 2024 10:51:05 +0200
Subject: [PATCH] filter_multiline: Reset group metadata buffer on flush

This commit resets the size of the metadata buffer on a flush.
It fixes continuous growth of this buffer over time.

Signed-off-by: Richard Treu <richard.treu@sap.com>
---
 src/multiline/flb_ml.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/multiline/flb_ml.c b/src/multiline/flb_ml.c
index d08eeccb112..66814835e18 100644
--- a/src/multiline/flb_ml.c
+++ b/src/multiline/flb_ml.c
@@ -1443,6 +1443,7 @@ int flb_ml_flush_stream_group(struct flb_ml_parser *ml_parser,
         }
         msgpack_unpacked_destroy(&result);
         group->mp_sbuf.size = 0;
+        group->mp_md_sbuf.size = 0;
     }
     else if (len > 0) {
         /* Pack raw content as Fluent Bit record */