SERVER-46291 add WiredTigerGlobalOptions::getMaxHistoryFileSizeMB()

(cherry picked from commit 518824e2c83e2dbd2a3ccca43ab3ce8b647dc91a)

2 files changed, 8 insertions, 3 deletions

diff --git a/src/mongo/db/storage/wiredtiger/wiredtiger_global_options.h b/src/mongo/db/storage/wiredtiger/wiredtiger_global_options.h
index 0cfb7c4fb4f..c630997aed7 100644
--- a/src/mongo/db/storage/wiredtiger/wiredtiger_global_options.h
+++ b/src/mongo/db/storage/wiredtiger/wiredtiger_global_options.h
@@ -66,6 +66,13 @@ public:
 
     static Status validateWiredTigerCompressor(const std::string&);
     static Status validateMaxCacheOverflowFileSizeGB(double);
+
+    /**
+     * Returns current history file size in MB.
+     */
+    std::size_t getMaxHistoryFileSizeMB() const {
+        return 1024 * maxCacheOverflowFileSizeGB;
+    }
 };
 
 extern WiredTigerGlobalOptions wiredTigerGlobalOptions;
diff --git a/src/mongo/db/storage/wiredtiger/wiredtiger_init.cpp b/src/mongo/db/storage/wiredtiger/wiredtiger_init.cpp
index 8a7705dad61..51188726eda 100644
--- a/src/mongo/db/storage/wiredtiger/wiredtiger_init.cpp
+++ b/src/mongo/db/storage/wiredtiger/wiredtiger_init.cpp
@@ -112,15 +112,13 @@ public:
             }
         }
         const bool ephemeral = false;
-        const auto maxCacheOverflowMB =
-            static_cast<size_t>(1024 * wiredTigerGlobalOptions.maxCacheOverflowFileSizeGB);
         WiredTigerKVEngine* kv =
             new WiredTigerKVEngine(getCanonicalName().toString(),
                                    params.dbpath,
                                    getGlobalServiceContext()->getFastClockSource(),
                                    wiredTigerGlobalOptions.engineConfig,
                                    cacheMB,
-                                   maxCacheOverflowMB,
+                                   wiredTigerGlobalOptions.getMaxHistoryFileSizeMB(),
                                    params.dur,
                                    ephemeral,
                                    params.repair,