bbc/simorgh

diff --git a/lib/winston/transports/file.js b/lib/winston/transports/file.js
index 60af7f5806f7de9dafcdb88bbcc215e426c879b9..2802601ad73b24aabe966de652d17dae40d61b95 100644
--- a/lib/winston/transports/file.js
+++ b/lib/winston/transports/file.js
@@ -89,6 +89,11 @@ module.exports = class File extends TransportStream {
     this._opening = false;
     this._ending = false;
 
+    // https://github.com/winstonjs/winston/issues/2100
+    // Array to collect write streams created in this transport 
+    // for destruction later
+    this._writeStreams = [];
+
     if (this.dirname) this._createLogDirIfNotExist(this.dirname);
     this.open();
   }
@@ -400,6 +405,13 @@ module.exports = class File extends TransportStream {
       debug('stat done: %s { size: %s }', this.filename, size);
       this._size = size;
       this._dest = this._createStream(this._stream);
+
+      // https://github.com/winstonjs/winston/issues/2100
+      // Collect the write stream created here - at some point a new stream is created and assigned to 
+      // this._dest before _this.cleanupStream is called; this ensures we collect all streams we need to 
+      // cleanup to prevent a file descriptor leak.
+      this._writeStreams.push(this._dest);
+
       this._opening = false;
       this.once('open', () => {
         if (this._stream.eventNames().includes('rotate')) {
@@ -502,7 +514,16 @@ module.exports = class File extends TransportStream {
    */
   _cleanupStream(stream) {
     stream.removeListener('error', this._onError);
-
+    
+    // https://github.com/winstonjs/winston/issues/2100
+    // In testing it was found more than one stream is created beyond the one passed to this function;
+    // this logic ensures any streams are destroyed to prevent a file descriptor leak -
+    // the cause of additional stream is still unknown
+    let streamToClose = this._writeStreams.pop();
+    while (streamToClose) {
+      streamToClose.destroy();
+      streamToClose = this._writeStreams.pop();
+    }
     return stream;
   }