JAVA:TDengine Error: Unable to establish connection

[Mrgongm]

Bug Description
taosd.service start filed,
Job for taosd.service failed because a fatal signal was delivered to the control process.

To Reproduce
1、两台设备 搭建简单的集群并且检查连接成功。建立两个数据库，同时开始存储数据（每个数据库均有1680张表，每张表每秒使用1次insert语句批量插入1000条数据）。建库建表语句如下：

CREATE DATABASE IF NOT EXISTS dbm KEEP 10 DAYS 1;
USE dbm;
CREATE TABLE IF NOT EXISTS suMdata(ts TIMESTAMP,a int,b int) tags(groupid smallint ,hostid smallint);
CREATE DATABASE IF NOT EXISTS dbv KEEP 10 DAYS 1;
USE dbv;
CREATE TABLE IF NOT EXISTS suVdata(ts TIMESTAMP,x int,y int,z int) tags(groupid smallint ,hostid smallint);

2、刚开始一切正常，查询集群中任何节点，均能查看到所有表及数据
3、运行一段时间后，java程序出现异常：“TDengine Error: Unable to establish connection”
4、此时打开终端，输入“taos”指令，数据库已经无法进入，且报异常“taos connect failed, reason: Unable to establish connection.”
5、执行sudo systemctl status taosd.server 发现taosd已经停止运行
6、执行sudo systemctl start taosd.server 出现以下信息：

Job for taosd.service failed because a fatal signal was delivered to the control process.
See "systemctl status taosd.service" and "journalctl -xe" for details.

7、再次执行sudo systemctl status taosd.server 查看状态如下：

● taosd.service - TDengine server service
   Loaded: loaded (/etc/systemd/system/taosd.service; enabled; vendor preset: enabled)
   Active: failed (Result: signal) since Wed 2020-12-30 01:12:15 CST; 57s ago
  Process: 28334 ExecStart=/usr/bin/taosd (code=killed, signal=ABRT)
 Main PID: 28334 (code=killed, signal=ABRT)
12月 30 01:12:15 beiyang-Precision-5820-Tower-X-Series systemd[1]: Stopped TDengine server service.
12月 30 01:12:15 beiyang-Precision-5820-Tower-X-Series systemd[1]: taosd.service: Start request repeated too quickly.
12月 30 01:12:15 beiyang-Precision-5820-Tower-X-Series systemd[1]: taosd.service: Failed with result 'signal'.
12月 30 01:12:15 beiyang-Precision-5820-Tower-X-Series systemd[1]: Failed to start TDengine server service.
12月 30 01:12:25 beiyang-Precision-5820-Tower-X-Series systemd[1]: taosd.service: Start request repeated too quickly.
12月 30 01:12:25 beiyang-Precision-5820-Tower-X-Series systemd[1]: taosd.service: Failed with result 'signal'.
12月 30 01:12:25 beiyang-Precision-5820-Tower-X-Series systemd[1]: Failed to start TDengine server service.
12月 30 01:12:32 beiyang-Precision-5820-Tower-X-Series systemd[1]: taosd.service: Start request repeated too quickly.
12月 30 01:12:32 beiyang-Precision-5820-Tower-X-Series systemd[1]: taosd.service: Failed with result 'signal'.
12月 30 01:12:32 beiyang-Precision-5820-Tower-X-Series systemd[1]: Failed to start TDengine server service.

Screenshots

Environment (please complete the following information):
集群两台设备：

 - OS: [Ubuntu 18.04]
 - Memory[32G], CPU[36  Intel(R) Core(TM) i9-10980XE CPU @ 3.00GHz], current Disk Space[198G/229G]
 - TDengine Version [2.0.12.0]

 - OS: [Ubuntu 18.04]
 - Memory[16G], CPU[ 8  Intel(R) Core(TM) i7-6700 CPU @ 3.40GHz], current Disk Space[45G/475G]
 - TDengine Version [2.0.12.0]

Log:
taoslog&taosdlog.zip

[sangshuduo]

log里只有一个 taosdlog，请把另外一台机器的taosdlog也上传，另外说明对应无法那台机器的log文件是哪个

[Mrgongm]

sorry。
之前提交的是32G内存机器的log。

以下是16G内存机器的log文件。
8核机器log.zip