org.janusgraph.diskstorage.TemporaryBackendException: Temporary failure in storage backend at io.vavr.API$Match$Case0.apply(API.java:3174)

at io.vavr.API$Match.of(API.java:3137)

at org.janusgraph.diskstorage.cql.CQLKeyColumnValueStore.lambda$static$0(CQLKeyColumnValueStore.java:125)

at io.vavr.control.Try.getOrElseThrow(Try.java:671)

at org.janusgraph.diskstorage.cql.CQLKeyColumnValueStore.getSlice(CQLKeyColumnValueStore.java:292)

at org.janusgraph.diskstorage.configuration.backend.KCVSConfiguration$3.call(KCVSConfiguration.java:177)

at org.janusgraph.diskstorage.configuration.backend.KCVSConfiguration$3.call(KCVSConfiguration.java:174)

at org.janusgraph.diskstorage.util.BackendOperation.execute(BackendOperation.java:147)

at org.janusgraph.diskstorage.util.BackendOperation$1.call(BackendOperation.java:161)

at org.janusgraph.diskstorage.util.BackendOperation.executeDirect(BackendOperation.java:68)

... 26 more

Caused by: com.datastax.driver.core.exceptions.ReadTimeoutException: Cassandra timeout during read query at consistency QUORUM (3 responses were required but only 2 replica responded)

I am trying to update janus client to not use QUORUM but LOCAL_ONE.  Setting below property but its not working.

JanusGraphFactory.Builder configProps = JanusGraphFactory.build();      configProps.set("storage.cql.read-consistency-level", “LOCAL_ONE”);

In CQLTransaction class i see its getting set by reading value from CustomOption

public CQLTransaction(final BaseTransactionConfig config) {
    super(config);
    this.readConsistencyLevel = ConsistencyLevel.valueOf(getConfiguration().getCustomOption(READ_CONSISTENCY));
    this.writeConsistencyLevel = ConsistencyLevel.valueOf(getConfiguration().getCustomOption(WRITE_CONSISTENCY));
}

I did tied  seeing value by using customOption() method of TransactionBuilder but no luck.

GraphTraversalSource g = janusGraph.buildTransaction()
        .customOption("storage.cql.read-consistency-level","LOCAL_ONE")
        .start().traversal();

Could you please help me to fix it?


Thanks & Regards,
Anjani