31740e279f
Today index names are often resolved lazily, only when they are really needed. This can be problematic especially when it gets to mapping updates etc. when a node sends a mapping update to the master but while the request is in-flight the index changes for whatever reason we would still apply the update since we use the name of the index to identify the index in the clusterstate. The problem is that index names can be reused which happens in practice and sometimes even in a automated way rendering this problem as realistic. In this change we resolve the index including it's UUID as early as possible in places where changes to the clusterstate are possible. For instance mapping updates on a node use a concrete index rather than it's name and the master will fail the mapping update iff the index can't be found by it's <name, uuid> tuple. Closes #17048 |
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