[tcapulusdb knowledge base] Introduction to tcapulusdb tcapsvrmgr tool (III)

10. changeid

This command is used to modify... In the specified engine file AppID、ZoneID、Table_Name、ShardID, The command format is ./tcapsvrmgr changeid -f engfile -A app_id -Z zone_id -T table_name -S shard_id,engfile Represents an engine file .

Example ：./tcapsvrmgr changeid -f test_table_1.txh -A 1 -Z 1 -T test -S 2, have access to listmeta Command to see if the changes take effect .

11. deletebykey

This command is used from the running TcaplusDB Delete specified record in , The command format is ./tcapsvrmgr deletebykey configfile,configfile by deletebykey The configuration file for the command .

Example ：./tcapsvrmgr deletebykey tcapsvrmgr_deletebykey_cfg.xml

stay tcapsvrmgr_deletebykey_cfg.xml in , It specifies DirServerAddr、PassWord、AppID、ZoneID、Table_Name And what to delete key File path name and other information .

Used to record the record to be deleted key The file needs to follow a fixed format ：（1） The first line of the file is each key Name of field , Start from the second line for each record to be deleted key Value of field ;（2） The fields are separated by spaces .

For example, there are two in a data table key Field key1、key2, They are integer and floating point respectively . If you want to delete key1=10 key2=6.8 This record , be key The first line of the file should read “key1 key2”, The second line should read “10 6.8”

deletebykey Command configuration file template and description Expand the source code

12. import

This command is used to import some or all of the records in the engine file into the running TcaplusDB in , The command format is ./tcapsvrmgr import configfile,configfile by import The configuration file for the command .

Example ：./tcapsvrmgr import tcapsvrmgr_import_cfg.xml

stay tcapsvrmgr_import_cfg.xml in , It specifies DirServerAddr、PassWord And the engine file to be imported AppID、ZoneID、Table_Name、ShardID Etc ; If only some records in the engine file are imported , You also need to specify the of the records to be imported key File pathname ,key The format requirements of the document are the same as deletebykey The same command .

import Command configuration file template and description （ Import all records ） Expand the source code

import Command configuration file template and description （ Import some records ） Expand the source code

13. getrecord

This command is used to get the specified record from the specified engine file , The command format is ./tcapsvrmgr getrecord configfile,configfile by getrecord The configuration file for the command .

Example ：./tcapsvrmgr getrecord tcapsvrmgr_getrecord_cfg.xml

stay tcapsvrmgr_getrecord_cfg.xml in , Specifies the of the engine file used to get records AppID、ZoneID、Table_Name、ShardID And the number of records to be obtained 、 Corresponding key Fields, etc .

getrecord Command configuration file template and description Expand the source code

14. partkeyrestore

This command is used for some key Retreated , About to specify a section in the engine file key Record the... Imported into the running TcaplusDB in , The command format is ./tcapsvrmgr partkeyrestore configfile,configfile by partkeyrestore The configuration file for the command .

Example ：./tcapsvrmgr partkeyrestore tcapsvrmgr_partkeyrestore_cfg.xml

stay tcapsvrmgr_partkeyrestore_cfg.xml in , It specifies DirServerAddr、PassWord、 Of the engine file to import AppID、ZoneID、Table_Name、ShardID And the part to be shifted back key Etc . Be careful ： the partkey Must be indexed in the database .

partkeyrestore Command configuration file template and description Expand the source code

15. changelocalsequence

This command is used to modify... In the specified engine file CheckPoint Information , The command format is ./tcapsvrmgr changelocalsequence -f engfile -p x, among ,engfile For engine files ,x For the CheckPoint Value .

Example ：./tcapsvrmgr changelocalsequence -f test_table_1.txh -p 12, have access to listmeta Command to see if the changes take effect .

16. changesuccsyncsequence

This command is used to modify... In the specified engine file SuccSyncSequence Information , The command format is ./tcapsvrmgr changesuccsyncsequence -f engfile -s x, among ,engfile For engine files ,x For the SuccSyncSequence Value .

Example ：./tcapsvrmgr changesuccsyncsequence -f test_table_1.txh -s 91, have access to listmeta Command to see if the changes take effect .

17. overwritesuccsyncseqwithlocalseq

This command uses... In the specified engine file CheckPoint The value of the field overrides SuccSyncSequence Value of field , The command format is ./tcapsvrmgr overwritesuccsyncseqwithlocalseq -f engfile, among ,engfile For engine files .

Example ：./tcapsvrmgr overwritesuccsyncseqwithlocalseq -f test_table_1.txh, have access to listmeta Command to see if the changes take effect .

18. checklistindexelement

This command is used to find... In the specified engine file index crash Of key and element crash Of key, So-called index crash, Refer to list In the table index Point to the element Can't find ; So-called element crash, Refers to certain element The corresponding... Cannot be found index.

The command format is ./tcapsvrmgr checklistindexelement engfile index_crash_key_file element_crash_key_file, The specific meanings of the three parameters are as follows ：

• engfile Indicates what to check list Engine files for tables

• index_crash_key_file Used to hold index crash Of key The file of , Text form

• element_crash_key_file Used to hold element crash Of key The file of , Text form

Example ：./tcapsvrmgr checklistindexelement /txh/AppID_2_ZoneID_3/table_traverser_list_2.txh index_crash.txt element_crash.txt

19. listindexusage

This command is used to query list Index usage of the table , The command format is ./tcapsvrmgr listindexusage engfile, among ,engfile by list Engine files for tables .

Example ：./tcapsvrmgr listindexusage table_list_2.txh

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