Hazelcast REST API

Question

I don't get to work REST API of Hazelcast, receiving always :

at client side : ERR_EMPTY_RESPONSE via Browser or java.net.SocketException: Unexpected end of file from server via a Java Test Program.

at hazelcast node:

INFO: [myIP]:5701 [dev] [3.6] Established socket connection between /127.0.0.1:5701 and /127.0.0.1:62816
06-may-2016 13:04:20 com.hazelcast.nio.tcp.TcpIpConnection
INFO: [myIP]:5701 [dev] [3.6] Connection [/127.0.0.1:62816] lost. Reason: Socket explicitly closed

The used code is just hazaelcast multimap sample: and the REST API uri http://localhost:5701/hazelcast/rest/maps/my-distributed-map/key

Do you try to access a multimap? Multimaps are not supported, only cluster information, maps and queues. — noctarius, May 06 '16 at 11:25
Just a map, like the sample program: ConcurrentMap map = h.getMap("my-distributed-map") and also IMap, Multimap ...always the same response — Azimuts, May 06 '16 at 11:50
Is the REST available? By default it should be disabled after `3.6`. — Murat Ayan, May 06 '16 at 12:07
@Murat, you are OK. The same sample with 3.5.2 works fine.... I dont know how to enable. I have tried "hazelcast.mc.rest.enabled", but nothing — Azimuts, May 06 '16 at 12:38
The correct property to enable REST is: -Dhazelcast.rest.enabled=true . This way works after 3.6 — Azimuts, May 06 '16 at 12:50
Cheers. `hazelcast.mc.rest.enabled` is for Management Center REST imho. — Murat Ayan, May 06 '16 at 13:31

magulla · Answer 1 · 2020-02-10T13:21:33.300

10

i think that REST interface was disabled by default until certain version. add jvm argument for your application.

-Dhazelcast.rest.enabled=true

edited Feb 10 '20 at 13:21

answered Dec 05 '16 at 23:54

magulla

499
1
9
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Faced a similar issue after upgrading from hazelcast 3.5 to 3.7. – Chikipowpow Jul 13 '17 at 21:02

score 4 · Answer 2 · answered Jul 13 '17 at 21:06

4

You can add hazelcast.rest.enabled to your hazelcast.xml config.

<hazelcast>
   ...
  <properties>
    ...
    <property name="hazelcast.rest.enabled">true</property>
  </properties> 
</hazelcast>

answered Jul 13 '17 at 21:06

Chikipowpow

809
8
9

score 4 · Answer 3 · answered Aug 08 '17 at 21:02

4

If you want to do it programatically, for example using Spring Boot @Configuration Bean, use this method on your returned com.hazelcast.config.Config class:

.setProperty("hazelcast.rest.enabled", "true")

answered Aug 08 '17 at 21:02

Daniel Perník

5,464
2
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score 3 · Answer 4 · answered Mar 24 '21 at 12:53

The property hazelcast.rest.enabled was removed in Hazelcast 4.

If you wish to do this programatically in Hazelcast 4, you can use the REST endpoint groups

RestApiConfig restApiConfig = new RestApiConfig()
        .setEnabled(true)
        .enableGroups(RestEndpointGroup.DATA);
config.getNetworkConfig().setRestApiConfig(restApiConfig);

Or in the declarative configuration

<hazelcast>
    ...
    <network>
        <rest-api enabled="true">
            <endpoint-group name="DATA" enabled="true"/>
        </rest-api>
    </network>
</hazelcast>

Hazelcast REST API

4 Answers4