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| <title>ExternalHazelcastCacheManager</title> |
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| <h2>ExternalHazelcastCacheManager</h2> |
| |
| <p> |
| This service connects to an external Hazelcast cluster (or standalone instance) as client. Hazelcast 4.0.0 or newer version is required. |
| The connection to the server is kept alive using Hazelcast's built in reconnection capability. This might be fine-tuned |
| by setting the following properties: |
| </p> |
| |
| <ul> |
| <li>Hazelcast Initial Backoff</li> |
| <li>Hazelcast Maximum Backoff</li> |
| <li>Hazelcast Backoff Multiplier</li> |
| <li>Hazelcast Connection Timeout</li> |
| </ul> |
| |
| <p> |
| If the service cannot connect or abruptly disconnected it tries to reconnect after a backoff time. The amount of time waiting |
| before the first attempt is defined by the Initial Backoff. If the connection is still not successful the client waits gradually |
| more between the attempts until the waiting time reaches the value set in the 'Hazelcast Maximum Backoff' property (or the connection timeout, |
| whichever is smaller). The backoff time after the first attempt is always based on the previous amount, multiplied by the Backoff Multiplier. |
| Note: the real backoff time might be slightly differ as some "jitter" is added to the calculation in order to avoid regularity. |
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