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[CCR] Also copy routing_num_shards from leader to follow index. (#30894) 

Bug was introduced when create and follow api was added in #30602
This commit is contained in:
Martijn van Groningen 2018-05-31 08:03:53 +02:00 committed by GitHub
parent 16402305bb
commit a82f2e31b4
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2 changed files with 14 additions and 8 deletions
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17
x-pack/plugin/ccr/src/main/java/org/elasticsearch/xpack/ccr/action/CreateAndFollowIndexAction.java
View File

@ -45,7 +45,6 @@ import org.elasticsearch.transport.TransportService;
import org.elasticsearch.xpack.ccr.CcrSettings;
import java.io.IOException;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
@ -247,20 +246,21 @@ public class CreateAndFollowIndexAction extends Action<CreateAndFollowIndexActio
@Override
public ClusterState execute(ClusterState currentState) throws Exception {
IndexMetaData currentIndex = currentState.metaData().index(request.getFollowRequest().getFollowIndex());
String followIndex = request.getFollowRequest().getFollowIndex();
IndexMetaData currentIndex = currentState.metaData().index(followIndex);
if (currentIndex != null) {
throw new ResourceAlreadyExistsException(currentIndex.getIndex());
}
MetaData.Builder mdBuilder = MetaData.builder(currentState.metaData());
IndexMetaData.Builder imdBuilder = IndexMetaData.builder(request.getFollowRequest().getFollowIndex());
IndexMetaData.Builder imdBuilder = IndexMetaData.builder(followIndex);
// Copy all settings, but overwrite a few settings.
Settings.Builder settingsBuilder = Settings.builder();
settingsBuilder.put(leaderIndexMetaData.getSettings());
// Overwriting UUID here, because otherwise we can't follow indices in the same cluster
settingsBuilder.put(IndexMetaData.SETTING_INDEX_UUID, UUIDs.randomBase64UUID());
settingsBuilder.put(IndexMetaData.SETTING_INDEX_PROVIDED_NAME, request.getFollowRequest().getFollowIndex());
settingsBuilder.put(IndexMetaData.SETTING_INDEX_PROVIDED_NAME, followIndex);
settingsBuilder.put(CcrSettings.CCR_FOLLOWING_INDEX_SETTING.getKey(), true);
imdBuilder.settings(settingsBuilder);
@ -268,7 +268,9 @@ public class CreateAndFollowIndexAction extends Action<CreateAndFollowIndexActio
for (ObjectObjectCursor<String, MappingMetaData> cursor : leaderIndexMetaData.getMappings()) {
imdBuilder.putMapping(cursor.value);
}
mdBuilder.put(imdBuilder.build(), false);
imdBuilder.setRoutingNumShards(leaderIndexMetaData.getRoutingNumShards());
IndexMetaData followIMD = imdBuilder.build();
mdBuilder.put(followIMD, false);
ClusterState.Builder builder = ClusterState.builder(currentState);
builder.metaData(mdBuilder.build());
@ -279,7 +281,10 @@ public class CreateAndFollowIndexAction extends Action<CreateAndFollowIndexActio
updatedState = allocationService.reroute(
ClusterState.builder(updatedState).routingTable(routingTableBuilder.build()).build(),
"follow index [" + request.getFollowRequest().getFollowIndex() + "] created");
logger.info("[{}] creating index, cause [ccr_create_and_follow], shards [{}]/[{}]",
followIndex, followIMD.getNumberOfShards(), followIMD.getNumberOfReplicas());
return updatedState;
}
});

5
x-pack/plugin/ccr/src/test/java/org/elasticsearch/xpack/ccr/ShardChangesIT.java
View File

@ -145,7 +145,6 @@ public class ShardChangesIT extends ESIntegTestCase {
assertThat(operation.id(), equalTo("5"));
}
@AwaitsFix(bugUrl = "https://github.com/elastic/elasticsearch/issues/30227")
public void testFollowIndex() throws Exception {
final int numberOfPrimaryShards = randomIntBetween(1, 3);
final String leaderIndexSettings = getIndexSettings(numberOfPrimaryShards,
@ -162,6 +161,7 @@ public class ShardChangesIT extends ESIntegTestCase {
client().execute(CreateAndFollowIndexAction.INSTANCE, createAndFollowRequest).get();
final int firstBatchNumDocs = randomIntBetween(2, 64);
logger.info("Indexing [{}] docs as first batch", firstBatchNumDocs);
for (int i = 0; i < firstBatchNumDocs; i++) {
final String source = String.format(Locale.ROOT, "{\"f\":%d}", i);
client().prepareIndex("index1", "doc", Integer.toString(i)).setSource(source, XContentType.JSON).get();
@ -185,6 +185,7 @@ public class ShardChangesIT extends ESIntegTestCase {
unfollowIndex("index2");
client().execute(FollowIndexAction.INSTANCE, followRequest).get();
final int secondBatchNumDocs = randomIntBetween(2, 64);
logger.info("Indexing [{}] docs as second batch", secondBatchNumDocs);
for (int i = firstBatchNumDocs; i < firstBatchNumDocs + secondBatchNumDocs; i++) {
final String source = String.format(Locale.ROOT, "{\"f\":%d}", i);
client().prepareIndex("index1", "doc", Integer.toString(i)).setSource(source, XContentType.JSON).get();
@ -408,7 +409,7 @@ public class ShardChangesIT extends ESIntegTestCase {
private CheckedRunnable<Exception> assertExpectedDocumentRunnable(final int value) {
return () -> {
final GetResponse getResponse = client().prepareGet("index2", "doc", Integer.toString(value)).get();
assertTrue("doc with id [" + value + "] does not exist", getResponse.isExists());
assertTrue("Doc with id [" + value + "] is missing", getResponse.isExists());
assertTrue((getResponse.getSource().containsKey("f")));
assertThat(getResponse.getSource().get("f"), equalTo(value));
};