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improve refreshing logic to resync mappings on upgrade, reduce the amount of cluster events processing requires if the even if fired from several nodes / sources

This commit is contained in:
Shay Banon 2011-10-14 15:20:38 +02:00
parent ffc74260ac
commit 24f1f0ff96
1 changed files with 24 additions and 2 deletions
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26
modules/elasticsearch/src/main/java/org/elasticsearch/cluster/metadata/MetaDataMappingService.java
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@ -26,6 +26,8 @@ import org.elasticsearch.cluster.ProcessedClusterStateUpdateTask;
import org.elasticsearch.cluster.action.index.NodeMappingCreatedAction;
import org.elasticsearch.cluster.routing.IndexRoutingTable;
import org.elasticsearch.common.collect.Lists;
import org.elasticsearch.common.collect.Maps;
import org.elasticsearch.common.collect.Sets;
import org.elasticsearch.common.component.AbstractComponent;
import org.elasticsearch.common.compress.CompressedString;
import org.elasticsearch.common.inject.Inject;
@ -44,6 +46,7 @@ import java.io.IOException;
import java.util.Arrays;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.atomic.AtomicInteger;
@ -64,6 +67,8 @@ public class MetaDataMappingService extends AbstractComponent {
private final NodeMappingCreatedAction mappingCreatedAction;
private final Map<String, Set<String>> indicesAndTypesToRefresh = Maps.newHashMap();
@Inject public MetaDataMappingService(Settings settings, ClusterService clusterService, IndicesService indicesService, NodeMappingCreatedAction mappingCreatedAction) {
super(settings);
this.clusterService = clusterService;
@ -75,10 +80,27 @@ public class MetaDataMappingService extends AbstractComponent {
* Refreshes mappings if they are not the same between original and parsed version
*/
public void refreshMapping(final String index, final String... types) {
synchronized (indicesAndTypesToRefresh) {
Set<String> sTypes = indicesAndTypesToRefresh.get(index);
if (sTypes == null) {
sTypes = Sets.newHashSet();
indicesAndTypesToRefresh.put(index, sTypes);
}
sTypes.addAll(Arrays.asList(types));
}
clusterService.submitStateUpdateTask("refresh-mapping [" + index + "][" + Arrays.toString(types) + "]", new ClusterStateUpdateTask() {
@Override public ClusterState execute(ClusterState currentState) {
boolean createdIndex = false;
try {
Set<String> sTypes;
synchronized (indicesAndTypesToRefresh) {
sTypes = indicesAndTypesToRefresh.remove(index);
}
// we already processed those types...
if (sTypes == null || sTypes.isEmpty()) {
return currentState;
}
// first, check if it really needs to be updated
final IndexMetaData indexMetaData = currentState.metaData().index(index);
if (indexMetaData == null) {
@ -91,7 +113,7 @@ public class MetaDataMappingService extends AbstractComponent {
// we need to create the index here, and add the current mapping to it, so we can merge
indexService = indicesService.createIndex(indexMetaData.index(), indexMetaData.settings(), currentState.nodes().localNode().id());
createdIndex = true;
for (String type : types) {
for (String type : sTypes) {
// only add the current relevant mapping (if exists)
if (indexMetaData.mappings().containsKey(type)) {
indexService.mapperService().add(type, indexMetaData.mappings().get(type).source().string());
@ -100,7 +122,7 @@ public class MetaDataMappingService extends AbstractComponent {
}
IndexMetaData.Builder indexMetaDataBuilder = newIndexMetaDataBuilder(indexMetaData);
List<String> updatedTypes = Lists.newArrayList();
for (String type : types) {
for (String type : sTypes) {
DocumentMapper mapper = indexService.mapperService().documentMapper(type);
if (!mapper.mappingSource().equals(indexMetaData.mappings().get(type).source())) {
updatedTypes.add(type);