GAUSS-02011 -- GAUSS-02020

GAUSS-02011: "could not receive data from DATA stream: %s"

SQLSTATE: XX000

Description: During data replication between the primary and standby servers, the standby server detects primary-standby server connection errors. Resolve the problem based on the "%s" error message.

Solution:"1. If the network connection times out, adjust the current network environment. If the primary server is overloaded, adjust services. 2. If the primary server is shut down unexpectedly, identify the cause. "

GAUSS-02012: "data replication terminated by primary server :%s"

SQLSTATE: XX000

Description: The primary server terminates data replication to the standby server.

Solution:1. Check external causes.

GAUSS-02013: "could not send data to DATA stream: %s"

SQLSTATE: XX000

Description: During data transmission between the primary and standby servers, the standby server detects errors when sending data. Resolve the problem based on the "%s" error message.

Solution:"1. If the network connection times out, adjust the current network environment. If the primary server is overloaded, adjust services. 2. If the primary server is shut down unexpectedly, identify the cause. "

GAUSS-02014: "socket not open"

SQLSTATE: XX000

Description: Network exceptions occur during connection setup between the primary and standby server. The socket of the standby server is closed and an error is perceived.

Solution: Search the above error in logs to determine the concrete reason.

GAUSS-02015: "select() failed: %m"

SQLSTATE: XX000

Description: Select returns a failure.

Solution: Determine the root cause based on the error code. The error codes returned are standard error codes. See descriptions of related error codes by querying Help in the system.

GAUSS-02016: "replconninfo1 or replconninfo2 not configured."

SQLSTATE: XX000

Description: The configuration of replconninfo1 or replconninfo2 is empty in the postgresql.conf file.

Solution: Modify corresponding configuration options in the postgresql.conf file using the gs_guc tool.

GAUSS-02017: "terminating walreceiver process due to administrator command"

SQLSTATE: 57P01

Description: The walreceiver thread of the standby server receives the SIGTERM message. The error message is printed before the process exits.

Solution: Search logs to check whether the preceding operations are correct.

GAUSS-02018: "walreceiver still running according to shared memory state"

SQLSTATE: XX000

Description: Internal system error.

Solution: Contact technical support.

GAUSS-02019: "terminating walreceiver process due to the death of walrcvwriter"

SQLSTATE: XX000

Description: Internal system error.

Solution: Contact technical support.

GAUSS-02020: "terminating walreceiver due to timeout"

SQLSTATE: XX000

Description: The heartbeat between the primary and standby servers times out. The standby server disconnects from the primary server upon failing to detect the heartbeat.

Solution:"1. Determine the reason by checking the service load and network environment of the primary server. 2. Increase the value of wal_sender_timeout or wal_receiver_timeout or reduce service load as required. "