OpenMLDB got segmentatation fault under pressure test

**Bug Description**
Under pressure， OpenMLDB tablet got segmentation fault randomly.

**Expected Behavior**

**Relation Case**

**Steps to Reproduce**

1. client with 32 concurrancy run continously
2. 1 tablet, 1 nameserver
3.
4.

The issue mentions a segmentation fault under pressure testing with 32 concurrency, one tablet, and one nameserver. Start by examining the tablet server code and logs for memory corruption or race conditions. Look for stress test scripts to reproduce the crash, then use a debugger like gdb to analyze the core dump.

索引モデルが issue の本文から書いたものです。