10.1 List of operands

In compatibility mode, the recommended values for some operands differ from the default values. This difference is intended to maintain compatibility with earlier versions. If you want to apply compatibility mode, you must verify the default values of such operands in recommended mode and consider specifying the recommended values explicitly. If recommended mode is already applied, omit the operands described in this chapter.

The table below lists the names of operands that must be examined if you want to apply compatibility mode. This table also provides information about whether these operands can be modified. The operands are listed in alphabetical order.

Table 10-1 List of operands that must be examined if compatibility mode is to be applied

OperandDefinitionModifiable after forced or abnormal termination?Modifiable after planned termination?Must be examined?
SYSUNTSVRSDSFESDSBES
pd_apply_search_ats_numY------------YY0904
pd_dbsync_altwrite_skipY------------YY0904
pd_hashjoin_hashing_modeY------------YY0904
pd_inet_unix_bufmodeYY----------YY0904
pd_inet_unix_utl_bufmodeYY----------YY0904
pd_ipc_inet_bufsizeYY----------YY0904
pd_ipc_unix_bufsizeYY----------YY0904
pd_leap_secondY------------YY0904
pd_listen_socket_bufsetYY----------YY0904
pd_log_max_data_size#3----YYYYYY#1#2Y#10904
pd_log_rec_leng----YYYYYYY0904
pd_log_rollback_buff_count----YYYYYY#2Y0904
pd_max_tmp_table_rdarea_noY------------YY0904
pd_registered_port_levelYY----------NY0904
pd_sql_simple_comment_useY------------YY0904
pd_sts_initial_error----YYYYYYY0904
pd_sts_singleoperation----YYYYYYY0904
pd_syssts_initial_error--Y----------YY0904
pd_syssts_singleoperation--Y----------YY0904
pd_tcp_inet_bufsizeYY----------YY0904
pd_tcp_unix_bufsizeYY----------YY0904
pd_trn_rollback_msg_intervalY------------YY0904
pd_utl_buff_sizeY------------Y#1Y#10904
pd_utl_exec_modeY------------NY0904
Legend:
Y: Can be changed.
N: Cannot be changed.
--: Not applicable
SYS: System common definition
UNT: Unit control information definition
SVR: Server common definition
SDS: Single server definition
FES: Front-end server definition
DS: Dictionary server definition
BES: Back-end server definition
0904: Operands that must be examined if 0904 compatibility mode is to be applied
#1
It might not be possible to restart HiRDB if the value specified in this operand is decreased. If this occurs, revert the specification to the value prior to the change, and then restart.
#2
It might not be possible to restart HiRDB if the value specified in this operand is increased. If this occurs, revert the specification to the value prior to the change, and then restart.
#3
Exercise caution in modifying this operand while connected to HiRDB Datareplicator (source). Stop the corresponding HiRDB Datareplicator before adding, modifying, or deleting the specification of this operand, and then restart HiRDB after such a change. Changing this definition and restarting HiRDB while HiRDB Datareplicator is running might result in failure of extraction by HiRDB Datareplicator.