luhuayi
177cd61a57
Reviewed-by: Pruthi, Vineet <vineet.pruthi@t-systems.com> Co-authored-by: luhuayi <luhuayi@huawei.com> Co-committed-by: luhuayi <luhuayi@huawei.com>
6.1 KiB
Fault Tolerance
This section describes parameters used for controlling the methods that the server processes an error occurring in the database system.
exit_on_error
Parameter description: Specifies whether to terminate the current session.
Type: SUSET
Value range: Boolean
- on indicates that any error will terminate the current session.
- off indicates that only a FATAL error will terminate the current session.
Default value: off
omit_encoding_error
Parameter description: When performing character encoding conversion in the database, if a character encoding error occurs and the target character set encoding is UTF-8, the converted character with the error can be ignored and replaced with "?".
Type: USERSET
Value range: Boolean
- on indicates that characters that have conversion errors will be ignored and replaced with question marks (?), and error information will be recorded in logs.
- off indicates that characters that have conversion errors cannot be converted and error information will be directly displayed.
Default value: off
max_query_retry_times
Parameter description: Specifies the maximum number of retries for the automatic retry feature when a SQL statement encounters an error. Currently, the supported error types for retry include Connection reset by peer, Lock wait timeout, and Connection timed out. Setting this parameter to 0 will disable the retry feature.
Type: USERSET
Value range: an integer ranging from 0 to 20
Default value: 6
retry_ecode_list
Parameter description: Specifies the list of SQL error types that support automatic retry.
Type: USERSET
Value range: a string
Default value: YY001 YY002 YY003 YY004 YY005 YY006 YY007 YY008 YY009 YY010 YY011 YY012 YY013 YY014 YY015 53200 08006 08000 57P01 XX003 XX009 YY016 CG003 CG004 F0011 F0012 45003 42P30