[fix](file cache) Avoid accessing expired HDFS profile during prefetch

Author: bobhan1

be/src/io/fs/hdfs_file_reader.cpp

@@ -32,6 +32,7 @@
 #include "cpp/sync_point.h"
 #include "io/fs/err_utils.h"
 #include "io/hdfs_util.h"
+#include "io/io_common.h"
 #include "runtime/file_scan_profile.h"
 #include "runtime/thread_context.h"
 #include "runtime/workload_management/io_throttle.h"
@@ -121,7 +122,8 @@ Status HdfsFileReader::close() {
 
 Status HdfsFileReader::read_at_impl(size_t offset, Slice result, size_t* bytes_read,
                                     const IOContext* io_ctx) {
-    SCOPED_TIMER(_total_read_time);
+    auto* read_timer = io_ctx != nullptr && io_ctx->is_dryrun ? nullptr : _total_read_time;
+    SCOPED_TIMER(read_timer);
     auto st = do_read_at_impl(offset, result, bytes_read, io_ctx);
     if (!st.ok()) {
         _handle = nullptr;