Well
(Well)
1
【TiDB 使用环境】测试
【TiDB 版本】v8.5.1
【操作系统】
[root@tidbcluster soft]# hostnamectl
Static hostname: tidbcluster
Icon name: computer-vm
Chassis: vm
Machine ID: 17b2ead1d66b43f3b633fb09f016042e
Boot ID: eaa877c9baa243f280cf66a8e02f4055
Virtualization: vmware
Operating System: CentOS Linux 7 (Core)
CPE OS Name: cpe:/o:centos:centos:7
Kernel: Linux 3.10.0-1160.118.1.el7.x86_64
Architecture: x86-64
【部署方式】
VMware虚拟机，SSD硬盘；系统负载不高，CPU/MEM空闲；
部署方式参考： 《在单机上模拟部署生产环境集群》
https://docs.pingcap.com/zh/tidb/stable/quick-start-with-tidb/#在单机上模拟部署生产环境集群
【集群数据量】
【集群节点数】
【问题复现路径】做过哪些操作出现的问题
执行类似命令：
tiup cluster reload tidb-test
多个虚拟机中部署标准集群，类似操作较快。
Well
(Well)
4
在rokcy9.5 上重新部署单机集群v8.5.1，启动速度和重新加载配置速度都很快。
怀疑是操作系统centos7.9 与v8.5.1 兼容度不好导致。
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乡在人间
(Ti D Ber Ki Nyc B Fs)
5
官网上是有这么一段话，，，当时应该是考虑不支持linux 7版本了
清风明月
11
贴出来看下吧，有些配置是需要更改的，比如一些地址，按理不应该啊。
Well
(Well)
12
两系统均为同一平台虚拟机，分配的CPU/Mem/Disk一致；均安装v8.5.1;
centos79上配置文件：
[root@tidbcluster ~]# cat topo_tidbcluster.yaml
# # Global variables are applied to all deployments and used as the default value of
# # the deployments if a specific deployment value is missing.
global:
user: "tidb"
ssh_port: 22
deploy_dir: "/tidb-deploy"
data_dir: "/tidb-data"
# # Monitored variables are applied to all the machines.
monitored:
node_exporter_port: 9100
blackbox_exporter_port: 9115
server_configs:
tidb:
instance.tidb_slow_log_threshold: 300
tikv:
readpool.storage.use-unified-pool: false
readpool.coprocessor.use-unified-pool: true
pd:
replication.enable-placement-rules: true
replication.location-labels: ["host"]
tiflash:
logger.level: "info"
pd_servers:
- host: 192.168.169.41
tidb_servers:
- host: 192.168.169.41
tikv_servers:
- host: 192.168.169.41
port: 20160
status_port: 20180
config:
server.labels: { host: "logic-host-1" }
- host: 192.168.169.41
port: 20161
status_port: 20181
config:
server.labels: { host: "logic-host-2" }
- host: 192.168.169.41
port: 20162
status_port: 20182
config:
server.labels: { host: "logic-host-3" }
tiflash_servers:
- host: 192.168.169.41
monitoring_servers:
- host: 192.168.169.41
grafana_servers:
- host: 192.168.169.41
rocky9.5上配置
[root@tidb40 soft]# cat topo.yaml
# # Global variables are applied to all deployments and used as the default value of
# # the deployments if a specific deployment value is missing.
global:
user: "tidb"
ssh_port: 22
deploy_dir: "/tidb-deploy"
data_dir: "/tidb-data"
# # Monitored variables are applied to all the machines.
monitored:
node_exporter_port: 9100
blackbox_exporter_port: 9115
server_configs:
tidb:
instance.tidb_slow_log_threshold: 300
tikv:
readpool.storage.use-unified-pool: false
readpool.coprocessor.use-unified-pool: true
pd:
replication.enable-placement-rules: true
replication.location-labels: ["host"]
tiflash:
logger.level: "info"
pd_servers:
- host: 192.168.169.40
tidb_servers:
- host: 192.168.169.40
tikv_servers:
- host: 192.168.169.40
port: 20160
status_port: 20180
config:
server.labels: { host: "logic-host-1" }
- host: 192.168.169.40
port: 20161
status_port: 20181
config:
server.labels: { host: "logic-host-2" }
- host: 192.168.169.40
port: 20162
status_port: 20182
config:
server.labels: { host: "logic-host-3" }
tiflash_servers:
- host: 192.168.169.40
monitoring_servers:
- host: 192.168.169.40
grafana_servers:
- host: 192.168.169.40
[root@tidb40 soft]#
清风明月
13
主机用IP地址试下，把一些不常用的配置先注释掉，一个个放开，看下。
清风明月
14
最简单的看下是否还慢，然后逐步增加，最好先用ip，主机名的话，还有解析来。
reload的时候，服务器资源使用怎么样？
