public void snapShort(StringBuilder strBuff) {
        this.activeStatsBaseCall();
        if (switchStatsSets()) {
            getStatsValue(false,
                    msgStoreStatsSets[getIndex(writableIndex.get() - 1)], strBuff);
        } else {
            getStatsValue(true, msgStoreStatsSets[getIndex()], strBuff);
        }
    }
Snapshot and get current writing statistics information.

@param strBuff  the return information in json format
inlong-tubemq/tubemq-server/src/main/java/org/apache/inlong/tubemq/server/broker/stats/MsgStoreStatsHolder.java