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SOLR-6482: Add an onlyIfDown flag for DELETEREPLICA collections API command 

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1624930 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Erick Erickson 2014-09-15 03:08:05 +00:00
parent 0dcd2f3e65
commit e381b67e93
5 changed files with 19 additions and 2 deletions
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3
solr/CHANGES.txt
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@ -151,6 +151,9 @@ New Features
* SOLR-5810 : Support for SOLR-5473 in solr admin UI (Timothy Potter, Noble Paul)
* SOLR-6482: Add an onlyIfDown flag for DELETEREPLICA collections API command
(Erick Erickson)
Bug Fixes
----------------------

11
solr/core/src/java/org/apache/solr/cloud/OverseerCollectionProcessor.java
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@ -21,6 +21,8 @@ import static org.apache.solr.cloud.Assign.getNodesForNewShard;
import static org.apache.solr.common.cloud.ZkStateReader.COLLECTION_PROP;
import static org.apache.solr.common.cloud.ZkStateReader.REPLICA_PROP;
import static org.apache.solr.common.cloud.ZkStateReader.SHARD_ID_PROP;
import static org.apache.solr.common.cloud.ZkStateReader.ONLY_IF_DOWN;
import static org.apache.solr.common.params.CollectionParams.CollectionAction.ADDREPLICA;
import static org.apache.solr.common.params.CollectionParams.CollectionAction.ADDROLE;
import static org.apache.solr.common.params.CollectionParams.CollectionAction.CLUSTERSTATUS;
@ -881,6 +883,15 @@ public class OverseerCollectionProcessor implements Runnable, Closeable {
+ shard + "/"+ collectionName + " available replicas are "+ StrUtils.join(l,','));
}
// If users are being safe and only want to remove a shard if it is down, they can specify onlyIfDown=true
// on the command.
if (Boolean.parseBoolean(message.getStr(ONLY_IF_DOWN)) &&
ZkStateReader.DOWN.equals(replica.getStr(ZkStateReader.STATE_PROP)) == false) {
throw new SolrException(ErrorCode.BAD_REQUEST, "Attempted to remove replica : " + collectionName + "/" +
shard+"/" + replicaName +
" with onlyIfDown='true', but state is '" + replica.getStr(ZkStateReader.STATE_PROP) + "'");
}
String baseUrl = replica.getStr(ZkStateReader.BASE_URL_PROP);
String core = replica.getStr(ZkStateReader.CORE_NAME_PROP);

3
solr/core/src/java/org/apache/solr/handler/admin/CollectionsHandler.java
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@ -30,6 +30,7 @@ import static org.apache.solr.cloud.OverseerCollectionProcessor.ROUTER;
import static org.apache.solr.cloud.OverseerCollectionProcessor.SHARDS_PROP;
import static org.apache.solr.common.cloud.ZkNodeProps.makeMap;
import static org.apache.solr.common.cloud.ZkStateReader.COLLECTION_PROP;
import static org.apache.solr.common.cloud.ZkStateReader.ONLY_IF_DOWN;
import static org.apache.solr.common.cloud.ZkStateReader.SHARD_ID_PROP;
import static org.apache.solr.common.params.CollectionParams.CollectionAction.ADDROLE;
import static org.apache.solr.common.params.CollectionParams.CollectionAction.CLUSTERPROP;
@ -493,7 +494,7 @@ public class CollectionsHandler extends RequestHandlerBase {
log.info("Remove replica: " + req.getParamString());
req.getParams().required().check(COLLECTION_PROP, SHARD_ID_PROP, "replica");
Map<String, Object> map = makeMap(QUEUE_OPERATION, DELETEREPLICA);
copyIfNotNull(req.getParams(),map,COLLECTION_PROP,SHARD_ID_PROP,"replica", ASYNC);
copyIfNotNull(req.getParams(),map,COLLECTION_PROP,SHARD_ID_PROP,"replica", ASYNC, ONLY_IF_DOWN);
ZkNodeProps m = new ZkNodeProps(map);
handleResponse(DELETEREPLICA, m, rsp);
}

2
solr/solrj/src/java/org/apache/solr/common/cloud/ZkStateReader.java
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@ -102,6 +102,8 @@ public class ZkStateReader implements Closeable {
public static final String LEADER_ELECT_ZKNODE = "/leader_elect";
public static final String SHARD_LEADERS_ZKNODE = "leaders";
public static final String ONLY_IF_DOWN = "onlyIfDown";
private final Set<String> watchedCollections = new HashSet<String>();
/**These are collections which are actively watched by this instance .