[Pick 2.0](inverted index) fix inverted index compound reader memory …

…leak (#36384)

## Proposed changes

Issue Number: close #xxx

Pick from #36146

be/src/olap/rowset/segment_v2/inverted_index_compound_reader.cpp

@@ -129,7 +129,6 @@ DorisCompoundReader::DorisCompoundReader(lucene::store::Directory* d, const char
           dir(d),
           ram_dir(new lucene::store::RAMDirectory()),
           file_name(name),
-          stream(nullptr),
           entries(_CLNEW EntriesType(true, true)) {
     bool success = false;
     try {
@@ -209,6 +208,13 @@ void DorisCompoundReader::copyFile(const char* file, int64_t file_length, uint8_
 }
 
 DorisCompoundReader::~DorisCompoundReader() {
+    if (!_closed) {
+        try {
+            close();
+        } catch (CLuceneError& err) {
+            LOG(ERROR) << "DorisCompoundReader finalize error:" << err.what();
+        }
+    }
     _CLDELETE(entries)
 }
 
@@ -292,14 +298,21 @@ bool DorisCompoundReader::openInput(const char* name, lucene::store::IndexInput*
 void DorisCompoundReader::close() {
     std::lock_guard<std::mutex> wlock(_this_lock);
     if (stream != nullptr) {
-        entries->clear();
         stream->close();
         _CLDELETE(stream)
     }
-    ram_dir->close();
-    dir->close();
-    _CLDECDELETE(dir)
-    _CLDELETE(ram_dir)
+    if (entries != nullptr) {
+        entries->clear();
+    }
+    if (ram_dir) {
+        ram_dir->close();
+        _CLDELETE(ram_dir)
+    }
+    if (dir) {
+        dir->close();
+        _CLDECDELETE(dir)
+    }
+    _closed = true;
 }
 
 bool DorisCompoundReader::doDeleteFile(const char* /*name*/) {

be/src/olap/rowset/segment_v2/inverted_index_compound_reader.h

@@ -34,11 +34,9 @@
 
 class CLuceneError;
 
-namespace lucene {
-namespace store {
+namespace lucene::store {
 class RAMDirectory;
-} // namespace store
-} // namespace lucene
+} // namespace lucene::store
 
 namespace doris {
 
@@ -66,6 +64,7 @@ class CLUCENE_EXPORT DorisCompoundReader : public lucene::store::Directory {
     EntriesType* entries;
 
     std::mutex _this_lock;
+    bool _closed = false;
 
 protected:
     /** Removes an existing file in the directory-> */