fb671adfd6
With the default distribution changing in 6.3, clusters might now contain custom metadata that a pure OSS transport client cannot deserialize. As this can break transport clients when accessing the cluster state or reroute APIs, we've decided to exclude any custom metadata that the transport client might not be able to deserialize. This will ensure compatibility between a < 6.3 transport client and a 6.3 default distribution cluster. Note that this PR only covers interoperability with older clients, another follow-up PR will cover full interoperability for >= 6.3 transport clients where we will make it possible again to get the custom metadata from the cluster state. Relates to #30731 |
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