is there a way to check if the Map exists without actually creating it or getting all the instances

[Duke Tantiprasut]

Hi Guys,

Is there a way to check if an IMap exists without doing a get and
potentially creating it? Using Hazelcast.getInstances() just to check
if a map already exists is pretty expensive.

THanks
Duke
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[Fuad Malikov]

Hi Duke,

Iterating over Hazelcast.getInstances() is the only way for now. Why do you think it is expensive?

Fuad

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[Duke]

We have many map instances. Several IMap instances are create for each
"process" execution and we have a lot of these.

Do you guys recommend that we have less maps and aggregate them as
much as possible?

[Fuad Malikov]

It shouldn't matter that much. Less map is better for managing things, but that's ok.

Hazelcast.getInstances() is a local operation, so should be faster than any distributed operation.

Fuad