public void clear() {
            this.snapShotTime.reset();
            // for file metric items
            this.fileAccumMsgCnt.clear();
            this.fileAccumMsgDataSize.clear();
            this.fileFlusheDurStats.clear();
            this.fileFlushedDataSize.clear();
            this.fileAccumMsgIndexSize.clear();
            this.fileFlushedMsgCnt.clear();
            this.fileDataSegAddCnt.clear();
            this.fileIndexSegAddCnt.clear();
            this.fileDataSizeFullCnt.clear();
            this.fileMetaFlushCnt.clear();
            this.fileMsgCountFullCnt.clear();
            this.fileCachedTimeFullCnt.clear();
            // for message metric items
            this.msgAppendSizeStats.clear();
            this.msgAppendDurStats.clear();
            this.msgAppendFailCnt.clear();
            // for cache metric items
            this.cacheDataSizeFullCnt.clear();
            this.cacheIndexSizeFullCnt.clear();
            this.cacheMsgCountFullCnt.clear();
            this.cacheFlushPendingCnt.clear();
            this.cacheReAllocCnt.clear();
            this.cacheTimeFullCnt.clear();
            this.resetTime.reset();
        }
MsgStoreStatsItemSet, Message store cache related statistics set
inlong-tubemq/tubemq-server/src/main/java/org/apache/inlong/tubemq/server/broker/stats/MsgStoreStatsHolder.java