Hitachi

In-Memory Data Grid Hitachi Elastic Application Data Store


21.1 List of minimum and maximum values

The following table lists minimum and maximum values in EADS.

Table 21‒1: Minimum and maximum values

No.

Item

Minimum value

Maximum value

1

Number of EADS client connections per EADS server

1

1,024

2

Number of EADS servers that make up one cluster

1#1

96

3

Number of caches that can be created per cluster

0

16

4

Number of data items that can be stored on one EADS server#2

0

2,147,483,647

5

Data multiplicity

1

5

6

Length of a key (in characters)

1

1,024

7

Size of a value#3 (in bytes)

1

262,144

8

Length of a group name (in characters)

1

1,022

9

Length of a cache name (in characters)

1

32

10

Number of groups

1

No limit

11

Number of group hierarchies

1

511

12

Size of all cache data files in a range (in megabytes)

16

128

13

Number of cache data files in a range

8

32,768

14

Number of data items that can be specified in one cache data file

--

131,070

Legend:

--: Not applicable.

#1

The number of EADS servers that make up a cluster must be at least the data multiplicity [Figure] 2 - 1.

#2

Includes the number of data items copied by data redundancy processing.

#3

For details about the size of a value, see 15.2.2(3) Data types that can be specified as values.