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Remove immediate operation retry after mapping update (#38873) 

Prior to this commit, when an indexing operation resulted in an
`Engine.Result.Type.MAPPING_UPDATE_REQUIRED`, TransportShardBulkAction
immediately retries the indexing operation to see if it succeeds. In the event
that it succeeds the context does not wait until the mapping update has
propagated through the cluster state before finishing the indexing.

In some of our tests we rely on mappings being available as soon as they've been
introduced in a document that indexed correctly. By removing the immediate retry
we always wait for this to be the case.

Resolves #38428
Supercedes #38579
Relates to #38711
This commit is contained in:
Lee Hinman 2019-02-14 09:30:40 -07:00 committed by Lee Hinman
parent d9c255dbbf
commit 0c733c04be
2 changed files with 6 additions and 16 deletions
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14
server/src/main/java/org/elasticsearch/action/bulk/TransportShardBulkAction.java
View File

@ -483,26 +483,16 @@ public class TransportShardBulkAction extends TransportWriteAction<BulkShardRequ
throws IOException {
T result = toExecute.get();
if (result.getResultType() == Engine.Result.Type.MAPPING_UPDATE_REQUIRED) {
// try to update the mappings and try again.
// try to update the mappings and mark the context as needing to try again.
try {
mappingUpdater.accept(result.getRequiredMappingUpdate());
context.markAsRequiringMappingUpdate();
} catch (Exception e) {
// failure to update the mapping should translate to a failure of specific requests. Other requests
// still need to be executed and replicated.
onComplete.accept(exceptionToResult.apply(e));
return;
}
// TODO - we can fall back to a wait for cluster state update but I'm keeping the logic the same for now
result = toExecute.get();
if (result.getResultType() == Engine.Result.Type.MAPPING_UPDATE_REQUIRED) {
// double mapping update. We assume that the successful mapping update wasn't yet processed on the node
// and retry the entire request again.
context.markAsRequiringMappingUpdate();
} else {
onComplete.accept(result);
}
} else {
onComplete.accept(result);
}

8
server/src/test/java/org/elasticsearch/action/bulk/TransportShardBulkActionTests.java
View File

@ -285,8 +285,8 @@ public class TransportShardBulkActionTests extends IndexShardTestCase {
assertThat("mappings were \"updated\" once", updateCalled.get(), equalTo(1));
// Verify that the shard "executed" the operation twice
verify(shard, times(2)).applyIndexOperationOnPrimary(anyLong(), any(), any(), anyLong(), anyLong(), anyLong(), anyBoolean());
// Verify that the shard "executed" the operation once
verify(shard, times(1)).applyIndexOperationOnPrimary(anyLong(), any(), any(), anyLong(), anyLong(), anyLong(), anyBoolean());
when(shard.applyIndexOperationOnPrimary(anyLong(), any(), any(), anyLong(), anyLong(), anyLong(), anyBoolean()))
.thenReturn(success);
@ -295,9 +295,9 @@ public class TransportShardBulkActionTests extends IndexShardTestCase {
(update, shardId, type) -> fail("should not have had to update the mappings"), () -> {});
// Verify that the shard "executed" the operation only once (2 for previous invocations plus
// Verify that the shard "executed" the operation only once (1 for previous invocations plus
// 1 for this execution)
verify(shard, times(3)).applyIndexOperationOnPrimary(anyLong(), any(), any(), anyLong(), anyLong(), anyLong(), anyBoolean());
verify(shard, times(2)).applyIndexOperationOnPrimary(anyLong(), any(), any(), anyLong(), anyLong(), anyLong(), anyBoolean());
BulkItemResponse primaryResponse = bulkShardRequest.items()[0].getPrimaryResponse();