4.x: Adjust BasicLoadBalancingPolicy#getReplicas
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getReplicas callBasicLoadBalancingPolicy#getReplicas
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Extends schema related classes with methods for querying scylla_keyspaces in order to determine whether keyspace is tablets-enabled. Adjusts schema queries tests and several other integration tests that mock responses from system tables. Adds `isUsingTablets()` and `setUsingTablets()` to KeyspaceMetadata.
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dkropachev
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Jan 13, 2025
.../main/java/com/datastax/oss/driver/internal/core/loadbalancing/BasicLoadBalancingPolicy.java
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Modifies the getReplicas method to do the tablet lookup if and only if the keyspace metadata indicates that it's a tablets-based keyspace. Otherwise refer to the token map. Previous behavior was to try tablet map lookup first regardless of the keyspace configuration.
dkropachev
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Jan 14, 2025
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Unlike in 3.x this
getReplicasis located inBasicLoadBalancingPolicy.The keyspace and table information is passed through the
Requestargument, so there is no need to extend that part.Those things aside, the behavior should be now in line with the description of #379 .