linux 源码部署polardb-x 错误汇总

news2024/9/21 2:48:31

前言

在linux 源码部署polardb-x 遇到不少错误，特在此做个汇总。

问题列表

CN 启动报错 Failed to init new TCP

详细错误如下

Caused by: Failed to init new TCP. XClientPool to my_polarx#267b21d8@127.0.0.1:33660 now 0 TCP(0 aging), 0 sessions(0 running, 0 idle), 0 waiting connection.
	at com.alibaba.polardbx.rpc.pool.XConnectionManager.getConnection(XConnectionManager.java:514)
	at com.alibaba.polardbx.rpc.compatible.XDataSource.getConnection(XDataSource.java:193)
	... 25 more
Caused by: Failed to init new TCP.
	at com.alibaba.polardbx.rpc.pool.XClientPool.getConnection(XClientPool.java:491)
	at com.alibaba.polardbx.rpc.pool.XClientPool.getConnection(XClientPool.java:287)
	at com.alibaba.polardbx.rpc.pool.XConnectionManager.getConnection(XConnectionManager.java:502)
	... 26 more
Caused by: ERR-CODE: [PXC-10001][ERR_X_PROTOCOL_CLIENT] XClientPool to my_polarx#267b21d8@127.0.0.1:33660 connect fail. 
	at com.alibaba.polardbx.rpc.pool.XClientPool.getConnection(XClientPool.java:474)
	... 28 more

分析

CN 在获取tcp 连接失败端口是 33660 这个问题比较复杂本质上是DN的rpc端口和 CN连接使用端口不匹配逐步排查
可能是DN初始化使用的33660 但是依然无法连接
可能是DN初始化使用的32886 但是CN连接使用的33660 肯定连接不上的

解决步骤

在DN启动增加mysql参数指定连接rpc 端口 rpc_port=32886
具体观察查看 DN启动日志
确认DN rpc端口为32886

# 登录DN
mysql -u root -S /usr/local/develop/PolarDB-X/polardbx_engine/run/mysql.sock -p
# 查看 rpc端口生效的配置 
show variables like '%rpc_port%';
# 是否new_rpc
show variables like '%new_rpc%';

rpc_port默认应该是32886

在CN启动增加mysql参数指定连接metab-db rpc 端口 storageDbXprotoPort=32886
检查CN 连接使用的端口配置默认应该是连接32886

# 登录DN
mysql -u root -S /usr/local/develop/PolarDB-X/polardbx_engine/run/mysql.sock -p
# 选择metadb
use polardbx_meta_db_polardbx;
select * from storage_info;
# 查看结果列中 xport端口是否为32886  
# 如果不是的话 修改xport 为32886
update storage_info set xport=32886;

在这里插入图片描述

配置错误
检查DN 配置 rpc_port=32886 loose_polarx_port= 32886 loose_galaxyx_port=32886 CN的配置 metaDbXprotoPort=32886 storageDbXprotoPort=32886

CDC 首次启动报错 task config is null

详细错误如下

2024-08-08 16:46:13.516 [main] INFO  org.eclipse.jetty.server.Server - Started @20461ms
2024-08-08 16:46:13.517 [main] INFO  c.a.p.binlog.daemon.rest.RestServer - REST server listening at http://192.168.104.234:3007/
2024-08-08 16:46:13.528 [main] INFO  c.a.p.binlog.monitor.MonitorManager - Monitor Server is started.
2024-08-08 16:46:13.606 [main] INFO  c.a.polardbx.binlog.TaskBootStrap - ## starting the task, with name Final.
2024-08-08 16:46:13.617 [main] ERROR c.a.polardbx.binlog.TaskBootStrap - ## Something goes wrong when starting up the task process:
com.aliyun.polardbx.binlog.error.PolardbxException: task config is null
        at com.aliyun.polardbx.binlog.TaskConfigProvider.getTaskRuntimeConfig(TaskConfigProvider.java:65)
        at com.aliyun.polardbx.binlog.TaskController.<init>(TaskController.java:56)
        at com.aliyun.polardbx.binlog.TaskBootStrap.boot(TaskBootStrap.java:77)
        at com.aliyun.polardbx.binlog.daemon.DaemonBootStrap.main(DaemonBootStrap.java:107)