bianca-stanciu29 opened a new pull request, #223:
URL: https://github.com/apache/cassandra-analytics/pull/223
…-skew validation in coordinated writes
## Problem
Time-skew validation before a coordinated bulk write fans out HTTP calls
directly to per-replica FQDNs resolved from the Cassandra token map. In
deployments where Sidecar is fronted by a load balancer, those FQDNs are not
routable from Spark executors, only the load balancer address is. This causes
time-skew validation to fail at the start of every coordinated write job,
blocking bulk writes entirely in load-balanced Sidecar deployments.
## Solution
Add a SIDECAR_BEHIND_LOAD_BALANCER writer option (default: false). When
true, time-skew validation skips the per-replica fan-out and routes through the
preconfigured load balancer contact points instead
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