[GitHub] chenhao7253886 commented on a change in pull request #285: Fix BE can't be grayscale upgraded

[GitBox <gi...@apache.org>]

chenhao7253886 commented on a change in pull request #285: Fix BE can't be grayscale upgraded
URL: https://github.com/apache/incubator-doris/pull/285#discussion_r231351160
 
 

 ##########
 File path: be/src/runtime/lib_cache.h
 ##########
 @@ -161,6 +161,36 @@ class LibCache {
         const std::string& hdfs_lib_file, LibType type,
         boost::unique_lock<boost::mutex>* entry_lock, LibCacheEntry** entry);
 
+    // map "palo" to "doris" in symbol, only for grayscale upgrading
+    std::string get_real_symbol(const std::string& symbol) {
+        const std::string& str1 = replace_all(symbol, "8palo_udf", "9doris_udf");
+        const std::string& str2 = replace_all(str1, "4palo", "5doris"); 
+        return str2;
+    }
+
+    std::string replace_all(const std::string& str, const std::string& find, const std::string& replace) {
 
 Review comment:
   ok, i will replace it.

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