getBackupList

Syntax

getBackupList(backupDir, dbPath, tableName)

Arguments

backupDir is a string indicating the directory where the backup is saved.

dbPath is a string indicating the path of a distributed database.

tableName is a string indicating a distributed table name.

Details

Return a table with information about the backups of a DFS table. Each row of the table corresponds to a backed-up partition. The table contains the following columns:

  • chunkID: the chunk ID

  • chunkPath: the DFS path to database chunks

  • cid: the commit ID

  • rows: the number of records in a chunk

  • updateTime: the last update time

Examples

if(existsDatabase("dfs://valuedb")){
   dropDatabase("dfs://valuedb")
}
n=3000000
month=take(2000.01M..2000.04M, n);
x=1..n
t=table(month,x);


db=database("dfs://valuedb", VALUE, 2000.01M..2000.04M)
pt = db.createPartitionedTable(t, `pt, `month);
pt.append!(t);
backup("/home/DolphinDB/backup","dfs://valuedb",tableName="pt");
getBackupList("/home/DolphinDB/backup","dfs://valuedb","pt");
chunkID chunkPath cid rows updateTime
0061427c-4b24-e3b6-425c-c0e1553d3c35 dfs://valuedb/200001M/b39 13,348 750,000 2022.09.21T15:45:50.931
dabbd90d-6001-f8a9-4d3e-8000d96eba68 dfs://valuedb/200002M/b39 13,348 750,000 2022.09.21T15:45:50.931
f5c259b4-4be3-f385-46d4-1a1a2d224e9d dfs://valuedb/200003M/b39 13,348 750,000 2022.09.21T15:45:50.931
6ed58eb9-a2ae-6197-4f81-3186ca1e8b20 dfs://valuedb/200004M/b39 13,348 750,000 2022.09.21T15:45:50.931