1 files changed, 11 insertions, 0 deletions
diff --git a/mailnews/db/gloda/modules/datastore.js b/mailnews/db/gloda/modules/datastore.js
index c9374c563..70bbdc6a7 100644
--- a/mailnews/db/gloda/modules/datastore.js
+++ b/mailnews/db/gloda/modules/datastore.js
@@ -1030,6 +1030,17 @@ var GlodaDatastore = {
 
     var dbConnection;
 
+    // Report about the size of the database through telemetry (if there's a
+    // database, naturally).
+    if (dbFile.exists()) {
+      try {
+        let h = Services.telemetry.getHistogramById("THUNDERBIRD_GLODA_SIZE_MB");
+        h.add(dbFile.fileSize/1048576);
+      } catch (e) {
+        this._log.warn("Couldn't report telemetry", e);
+      }
+    }
+
     // Create the file if it does not exist
     if (!dbFile.exists()) {
       this._log.debug("Creating database because it doesn't exist.");