Error Starting TiDB: Context Deadline Exceeded

This topic has been translated from a Chinese forum by GPT and might contain errors.

Original topic: 启动tidb报错context deadline exceeded

| username: 奋斗的大象

[2024/05/22 14:43:02.177 +08:00] [INFO] [region_cache.go:2377] [“[health check] check health error”] [store=] [error=“rpc error: code = Unavailable desc = connection error: desc = "transport: Error while dialing dial tcp connect: connection refused"”]
[2024/05/22 14:43:02.177 +08:00] [INFO] [region_request.go:785] [“mark store’s regions need be refill”] [id=183062372] [addr=] [error=“context deadline exceeded”]

| username: Kongdom | Original post link

Take a look here:

| username: TiDBer_q2eTrp5h | Original post link

This may be caused by network connection issues or resource limitations.

| username: yytest | Original post link

The error message you encountered indicates that a node in the TiDB cluster (with IP address cannot establish a connection through the specified port (20161). This usually means a network issue or the target service is not running. Here are some possible troubleshooting steps:

  1. Check Network Connectivity: Ensure that your client can reach the target node’s IP address and port over the network. You can use the ping command or telnet command to test the network connection.
  2. Check Service Status: Log in to the target node and check if the TiDB-related services are running. You can use system monitoring tools or directly check the service’s process status.
  3. View Log Files: Check the TiDB cluster’s log files, especially the logs of the target node, to get more information about the cause of the error.
  4. Restart Services: If you determine that the service is not running, try restarting the TiDB-related services. In some cases, services may crash or hang for various reasons, and a restart can resolve these issues.
  5. Check Security Group and Firewall Settings: Ensure that no security group rules or firewall settings are blocking the connection from your client to the target node.