getChunksMeta

Syntax

getChunksMeta([chunkPath], [top = 1024])

Arguments

chunkPath is the DFS path to one or multiple database chunks. It supports wildcards %, * and ?.

top is a positive number indicating the maximum number of chunks in the output. The default value is 1024. If it is set to -1, the number of returned chunks is not limited.

Details

Return metadata of specified database chunks on the local datanode. If chunkPath is not specified, return metadata of all database chunks on the local datanode.

Examples

$ if(existsDatabase("dfs://testDB")){
$   dropDatabase("dfs://testDB")
$ }
$ db=database("dfs://testDB", VALUE, 1..10)

$ n=1000000
$ t=table(rand(1..10, n) as id, rand(100.0, n) as x)
$ db.createPartitionedTable(t, `p1, `id).append!(t)

$ n=2000000
$ t=table(rand(1..10, n) as id, rand(100.0, n) as x, rand(100, n) as y)
$ db.createPartitionedTable(t, `pt2, `id).append!(t)
$ getChunksMeta("/testDB%");

site

chunkId

path

dfsPath

type

flag

size

version

state

versionList

local8848

e50ab482-f6d6-109c-4748-648c8af93964

C:Users...

/testDB/pt2.tbl

0

0

49

1

0

9:49;

local8848

dbfd1767-f9ca-689e-4d5e-643b8506e82d

C:Users...

/testDB/10

1

0

0

2

0

cid : 10,pt1=>…

local8848

d221b457-fa7b-5990-4caa-13c99f56f716

C:Users...

/testDB/9

1

0

0

2

0

cid : 10,pt1=>…

local8848

92904d3b-0147-9bb8-4a28-f99525b250e7

C:Users...

/testDB/8

1

0

0

2

0

cid : 10,pt1=>…

local8848

7478c15a-0629-c8ab-47ee-a1d12c3c1cd6

C:Users...

/testDB/1

1

0

0

2

0

cid : 10,pt1=>…

local8848

8bc48c11-86ca-97ac-4ee4-8f829de92cc8

C:Users...

/testDB/5

1

0

0

2

0

cid : 10,pt1=>…

local8848

6b3a0a09-bc64-3bab-4535-344b7316d244

C:Users...

/testDB/2

1

0

0

2

0

cid : 10,pt1=>…

local8848

a7452c44-5d2b-6f82-4150-7bc48e941d64

C:Users...

/testDB/4

1

0

0

2

0

cid : 10,pt1=>…

local8848

a1a375cc-b6c0-29b2-485a-330af7447564

C:Users...

/testDB/6

1

0

0

2

0

cid : 10,pt1=>…

local8848

b317dfa8-704d-e7af-4473-1abdf0475eed

C:Users...

/testDB/domain

0

0

79

1

0

6:79;

local8848

449154b1-a72b-4e81-4394-fdb025839ee5

C:Users...

/testDB/pt1.tbl

0

0

41

1

0

7:41;

local8848

b04b4c04-6d43-0d8d-4000-6ae88e349eda

C:Users...

/testDB/3

1

0

0

2

0

cid : 10,pt1=>…

local8848

b20df3a7-678b-1cbe-400d-d8e566706682

C:Users...

/testDB/7

1

0

0

2

0

cid : 10,pt1=>…