Add _replica and _replica_first as search preference. #12244
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| @@ -312,6 +316,32 @@ public ShardIterator primaryFirstActiveInitializingShardsIt() { | |||
| return new PlainShardIterator(shardId, ordered); | |||
| } | |||
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| public ShardIterator replicaActiveInitializingShardIt() { | |||
| if (!replicas.isEmpty() && !replicas.get(0).active() && !replicas.get(0).initializing()) { | |||
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I wouldn't rely on the order the replicas exist in for this behavior, note it works in the primary case cause there can be only one :)
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left a couple of comments, can we also add unit tests to |
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@kimchy thanks for taking a look! I think I misunderstood what the iterators were doing previously, but I think I have fixed it now. (and added a unit test to make sure) |
| public ShardIterator replicaActiveInitializingShardIt() { | ||
| // If the primaries are unassigned, return an empty list (there aren't | ||
| // any replicas to query anyway) | ||
| if (!primaryAsList.isEmpty() && !primaryAsList.get(0).active() && !primaryAsList.get(0).initializing()) { |
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can me extract this into a method, it is used in 3 places
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Good idea, I'll do that.
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left few minor comments, LGTM |
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Just like specifying `?preference=_primary`, this adds the ability to specify `?preference=_replica` or `?preference=_replica_first` on requests that support it. Resolves elastic#12222
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clintongormley
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Just like specifying
?preference=_primary, this adds the ability tospecify
?preference=_replicaor?preference=_replica_firstonrequests that support it.
Resolves #12222