java.util.concurrent.ExecutionException: com.datastax.driver.core.exceptions.NoHostAvailableException: All host(s) tried for query failed (tried: /127.0.0.2:9042 (com.datastax.driver.core.TransportException: [/127.0.0.2:9042] Connection has been closed))

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Cluster.manager.executor becomes severely backlogged by retrying requests

com.datastax.driver.core.exceptions.NoHostAvailableException: All host(s) tried for query failed (tried: /127.0.0.2:9042 (com.datastax.driver.core.TransportException: [/127.0.0.2:9042] Connection has been closed))

Cluster.manager.executor becomes severely backlogged by retrying requests

java.util.concurrent.ExecutionException: com.datastax.driver.core.exceptions.NoHostAvailableException: All host(s) tried for query failed (tried: /127.0.0.2:9042 (com.datastax.driver.core.TransportException: [/127.0.0.2:9042] Connection has been closed))	at com.google.common.util.concurrent.AbstractFuture$Sync.getValue(AbstractFuture.java:306)	at com.google.common.util.concurrent.AbstractFuture$Sync.get(AbstractFuture.java:293)	at com.google.common.util.concurrent.AbstractFuture.get(AbstractFuture.java:116)