diff --git a/mars/xlog/crypt/decode_log_file_c_impl/CMakeLists.txt b/mars/xlog/crypt/decode_log_file_c_impl/CMakeLists.txt
index 932802e8c..8dec228e3 100644
--- a/mars/xlog/crypt/decode_log_file_c_impl/CMakeLists.txt
+++ b/mars/xlog/crypt/decode_log_file_c_impl/CMakeLists.txt
@@ -14,4 +14,4 @@ include_directories(${CMAKE_CURRENT_SOURCE_DIR}/../../../)
 
 
 add_executable(decode_log_file decode_log_file.c micro-ecc-master/uECC.c)
-target_link_libraries(decode_log_file libzstd_static)
\ No newline at end of file
+target_link_libraries(decode_log_file libzstd_static z)
\ No newline at end of file
diff --git a/mars/xlog/crypt/decode_log_file_c_impl/decode_log_file.c b/mars/xlog/crypt/decode_log_file_c_impl/decode_log_file.c
index 059807fae..547f9cb1a 100644
--- a/mars/xlog/crypt/decode_log_file_c_impl/decode_log_file.c
+++ b/mars/xlog/crypt/decode_log_file_c_impl/decode_log_file.c
@@ -196,6 +196,7 @@ bool zstdDecompress(const char* compressedBytes, size_t compressedBytesSize, cha
     ZSTD_inBuffer input = {compressedBytes, compressedBytesSize, 0};
     ZSTD_outBuffer output = {NULL, compressedBytesSize, 0};
     bool done = false;
+    size_t lastPos = output.pos;
 
     while (!done) {
         if (output.pos >= uncompLength) {
diff --git a/mars/xlog/src/appender.cc b/mars/xlog/src/appender.cc
index 652f5949f..3da89cd9d 100644
--- a/mars/xlog/src/appender.cc
+++ b/mars/xlog/src/appender.cc
@@ -318,7 +318,7 @@ void XloggerAppender::Open(const XLogConfig& _config) {
                                                                      config_.cachedir_,
                                                                      config_.logdir_,
                                                                      config_.nameprefix_));
-        thread_timeout_cache_->start_after(3 * 60 * 1000);
+        thread_moveold_->start_after(3 * 60 * 1000);
 #ifdef __APPLE__
         setAttrProtectionNone(config_.cachedir_.c_str());
 #endif