SOLR-11090: Add Replica.getProperty accessor.

This commit is contained in:
Christine Poerschke 2017-08-07 16:23:48 +01:00
parent 68bda0be42
commit 8e2dab7315
7 changed files with 83 additions and 69 deletions

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@ -132,6 +132,8 @@ Other Changes
* SOLR-11187: contrib/ltr TestModelManagerPersistence improvements. (Yuki Yano via Christine Poerschke) * SOLR-11187: contrib/ltr TestModelManagerPersistence improvements. (Yuki Yano via Christine Poerschke)
* SOLR-11090: Add Replica.getProperty accessor. (Christine Poerschke)
================== 7.0.0 ================== ================== 7.0.0 ==================
Versions of Major Components Versions of Major Components

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@ -369,14 +369,14 @@ public class CollectionsAPISolrJTest extends SolrCloudTestCase {
assertEquals(0, response.getStatus()); assertEquals(0, response.getStatus());
waitForState("Expecting property 'preferredleader' to appear on replica " + replica.getName(), collection, waitForState("Expecting property 'preferredleader' to appear on replica " + replica.getName(), collection,
(n, c) -> "true".equals(c.getReplica(replica.getName()).getStr("property.preferredleader"))); (n, c) -> "true".equals(c.getReplica(replica.getName()).getProperty("preferredleader")));
response = CollectionAdminRequest.deleteReplicaProperty(collection, "shard1", replica.getName(), "property.preferredleader") response = CollectionAdminRequest.deleteReplicaProperty(collection, "shard1", replica.getName(), "property.preferredleader")
.process(cluster.getSolrClient()); .process(cluster.getSolrClient());
assertEquals(0, response.getStatus()); assertEquals(0, response.getStatus());
waitForState("Expecting property 'preferredleader' to be removed from replica " + replica.getName(), collection, waitForState("Expecting property 'preferredleader' to be removed from replica " + replica.getName(), collection,
(n, c) -> c.getReplica(replica.getName()).getStr("property.preferredleader") == null); (n, c) -> c.getReplica(replica.getName()).getProperty("preferredleader") == null);
} }
@ -396,7 +396,7 @@ public class CollectionsAPISolrJTest extends SolrCloudTestCase {
for (Slice slice : c) { for (Slice slice : c) {
int count = 0; int count = 0;
for (Replica replica : slice) { for (Replica replica : slice) {
if ("true".equals(replica.getStr("property.preferredleader"))) if ("true".equals(replica.getProperty("preferredleader")))
count += 1; count += 1;
} }
if (count != 1) if (count != 1)

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@ -62,7 +62,7 @@ public abstract class ReplicaPropertiesBase extends AbstractFullDistribZkTestBas
if (replica == null) { if (replica == null) {
fail("Could not find collection/replica pair! " + collectionName + "/" + replicaName); fail("Could not find collection/replica pair! " + collectionName + "/" + replicaName);
} }
if (StringUtils.isBlank(replica.getStr(property))) return; if (StringUtils.isBlank(replica.getProperty(property))) return;
Thread.sleep(100); Thread.sleep(100);
} }
fail("Property " + property + " not set correctly for collection/replica pair: " + fail("Property " + property + " not set correctly for collection/replica pair: " +
@ -88,11 +88,11 @@ public abstract class ReplicaPropertiesBase extends AbstractFullDistribZkTestBas
if (replica == null) { if (replica == null) {
fail("Could not find collection/replica pair! " + collectionName + "/" + replicaName); fail("Could not find collection/replica pair! " + collectionName + "/" + replicaName);
} }
if (StringUtils.equals(val, replica.getStr(property))) return; if (StringUtils.equals(val, replica.getProperty(property))) return;
Thread.sleep(100); Thread.sleep(100);
} }
fail("Property '" + property + "' with value " + replica.getStr(property) + fail("Property '" + property + "' with value " + replica.getProperty(property) +
" not set correctly for collection/replica pair: " + collectionName + "/" + replicaName + " property map is " + " not set correctly for collection/replica pair: " + collectionName + "/" + replicaName + " property map is " +
replica.getProperties().toString() + "."); replica.getProperties().toString() + ".");
@ -131,7 +131,7 @@ public abstract class ReplicaPropertiesBase extends AbstractFullDistribZkTestBas
int propCount = 0; int propCount = 0;
for (Replica replica : slice.getReplicas()) { for (Replica replica : slice.getReplicas()) {
uniqueNodes.add(replica.getNodeName()); uniqueNodes.add(replica.getNodeName());
String propVal = replica.getStr(property); String propVal = replica.getProperty(property);
if (StringUtils.isNotBlank(propVal)) { if (StringUtils.isNotBlank(propVal)) {
++propCount; ++propCount;
if (counts.containsKey(replica.getNodeName()) == false) { if (counts.containsKey(replica.getNodeName()) == false) {

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@ -401,8 +401,8 @@ public class TestCollectionAPI extends ReplicaPropertiesBase {
client.request(request); client.request(request);
// The above should have set exactly one preferredleader... // The above should have set exactly one preferredleader...
verifyPropertyVal(client, COLLECTION_NAME, c1_s1_r1, "property.preferredleader", "true"); verifyPropertyVal(client, COLLECTION_NAME, c1_s1_r1, "preferredleader", "true");
verifyUniquePropertyWithinCollection(client, COLLECTION_NAME, "property.preferredLeader"); verifyUniquePropertyWithinCollection(client, COLLECTION_NAME, "preferredLeader");
doPropertyAction(client, doPropertyAction(client,
"action", CollectionParams.CollectionAction.ADDREPLICAPROP.toString(), "action", CollectionParams.CollectionAction.ADDREPLICAPROP.toString(),
@ -412,8 +412,8 @@ public class TestCollectionAPI extends ReplicaPropertiesBase {
"property", "preferredLeader", "property", "preferredLeader",
"property.value", "true"); "property.value", "true");
// The preferred leader property for shard1 should have switched to the other replica. // The preferred leader property for shard1 should have switched to the other replica.
verifyPropertyVal(client, COLLECTION_NAME, c1_s1_r2, "property.preferredleader", "true"); verifyPropertyVal(client, COLLECTION_NAME, c1_s1_r2, "preferredleader", "true");
verifyUniquePropertyWithinCollection(client, COLLECTION_NAME, "property.preferredLeader"); verifyUniquePropertyWithinCollection(client, COLLECTION_NAME, "preferredLeader");
doPropertyAction(client, doPropertyAction(client,
"action", CollectionParams.CollectionAction.ADDREPLICAPROP.toString(), "action", CollectionParams.CollectionAction.ADDREPLICAPROP.toString(),
@ -424,9 +424,9 @@ public class TestCollectionAPI extends ReplicaPropertiesBase {
"property.value", "true"); "property.value", "true");
// Now we should have a preferred leader in both shards... // Now we should have a preferred leader in both shards...
verifyPropertyVal(client, COLLECTION_NAME, c1_s1_r2, "property.preferredleader", "true"); verifyPropertyVal(client, COLLECTION_NAME, c1_s1_r2, "preferredleader", "true");
verifyPropertyVal(client, COLLECTION_NAME, c1_s2_r1, "property.preferredleader", "true"); verifyPropertyVal(client, COLLECTION_NAME, c1_s2_r1, "preferredleader", "true");
verifyUniquePropertyWithinCollection(client, COLLECTION_NAME, "property.preferredLeader"); verifyUniquePropertyWithinCollection(client, COLLECTION_NAME, "preferredLeader");
doPropertyAction(client, doPropertyAction(client,
"action", CollectionParams.CollectionAction.ADDREPLICAPROP.toString(), "action", CollectionParams.CollectionAction.ADDREPLICAPROP.toString(),
@ -437,11 +437,11 @@ public class TestCollectionAPI extends ReplicaPropertiesBase {
"property.value", "true"); "property.value", "true");
// Now we should have three preferred leaders. // Now we should have three preferred leaders.
verifyPropertyVal(client, COLLECTION_NAME, c1_s1_r2, "property.preferredleader", "true"); verifyPropertyVal(client, COLLECTION_NAME, c1_s1_r2, "preferredleader", "true");
verifyPropertyVal(client, COLLECTION_NAME, c1_s2_r1, "property.preferredleader", "true"); verifyPropertyVal(client, COLLECTION_NAME, c1_s2_r1, "preferredleader", "true");
verifyPropertyVal(client, COLLECTION_NAME1, c2_s1_r1, "property.preferredleader", "true"); verifyPropertyVal(client, COLLECTION_NAME1, c2_s1_r1, "preferredleader", "true");
verifyUniquePropertyWithinCollection(client, COLLECTION_NAME, "property.preferredLeader"); verifyUniquePropertyWithinCollection(client, COLLECTION_NAME, "preferredLeader");
verifyUniquePropertyWithinCollection(client, COLLECTION_NAME1, "property.preferredLeader"); verifyUniquePropertyWithinCollection(client, COLLECTION_NAME1, "preferredLeader");
doPropertyAction(client, doPropertyAction(client,
"action", CollectionParams.CollectionAction.DELETEREPLICAPROP.toString(), "action", CollectionParams.CollectionAction.DELETEREPLICAPROP.toString(),
@ -452,10 +452,10 @@ public class TestCollectionAPI extends ReplicaPropertiesBase {
// Now we should have two preferred leaders. // Now we should have two preferred leaders.
// But first we have to wait for the overseer to finish the action // But first we have to wait for the overseer to finish the action
verifyPropertyVal(client, COLLECTION_NAME, c1_s1_r2, "property.preferredleader", "true"); verifyPropertyVal(client, COLLECTION_NAME, c1_s1_r2, "preferredleader", "true");
verifyPropertyVal(client, COLLECTION_NAME, c1_s2_r1, "property.preferredleader", "true"); verifyPropertyVal(client, COLLECTION_NAME, c1_s2_r1, "preferredleader", "true");
verifyUniquePropertyWithinCollection(client, COLLECTION_NAME, "property.preferredLeader"); verifyUniquePropertyWithinCollection(client, COLLECTION_NAME, "preferredLeader");
verifyUniquePropertyWithinCollection(client, COLLECTION_NAME1, "property.preferredLeader"); verifyUniquePropertyWithinCollection(client, COLLECTION_NAME1, "preferredLeader");
// Try adding an arbitrary property to one that has the leader property // Try adding an arbitrary property to one that has the leader property
doPropertyAction(client, doPropertyAction(client,
@ -466,11 +466,11 @@ public class TestCollectionAPI extends ReplicaPropertiesBase {
"property", "testprop", "property", "testprop",
"property.value", "true"); "property.value", "true");
verifyPropertyVal(client, COLLECTION_NAME, c1_s1_r2, "property.preferredleader", "true"); verifyPropertyVal(client, COLLECTION_NAME, c1_s1_r2, "preferredleader", "true");
verifyPropertyVal(client, COLLECTION_NAME, c1_s2_r1, "property.preferredleader", "true"); verifyPropertyVal(client, COLLECTION_NAME, c1_s2_r1, "preferredleader", "true");
verifyPropertyVal(client, COLLECTION_NAME, c1_s1_r1, "property.testprop", "true"); verifyPropertyVal(client, COLLECTION_NAME, c1_s1_r1, "testprop", "true");
verifyUniquePropertyWithinCollection(client, COLLECTION_NAME, "property.preferredLeader"); verifyUniquePropertyWithinCollection(client, COLLECTION_NAME, "preferredLeader");
verifyUniquePropertyWithinCollection(client, COLLECTION_NAME1, "property.preferredLeader"); verifyUniquePropertyWithinCollection(client, COLLECTION_NAME1, "preferredLeader");
doPropertyAction(client, doPropertyAction(client,
"action", CollectionParams.CollectionAction.ADDREPLICAPROP.toString(), "action", CollectionParams.CollectionAction.ADDREPLICAPROP.toString(),
@ -480,12 +480,12 @@ public class TestCollectionAPI extends ReplicaPropertiesBase {
"property", "prop", "property", "prop",
"property.value", "silly"); "property.value", "silly");
verifyPropertyVal(client, COLLECTION_NAME, c1_s1_r2, "property.preferredleader", "true"); verifyPropertyVal(client, COLLECTION_NAME, c1_s1_r2, "preferredleader", "true");
verifyPropertyVal(client, COLLECTION_NAME, c1_s2_r1, "property.preferredleader", "true"); verifyPropertyVal(client, COLLECTION_NAME, c1_s2_r1, "preferredleader", "true");
verifyPropertyVal(client, COLLECTION_NAME, c1_s1_r1, "property.testprop", "true"); verifyPropertyVal(client, COLLECTION_NAME, c1_s1_r1, "testprop", "true");
verifyPropertyVal(client, COLLECTION_NAME, c1_s1_r2, "property.prop", "silly"); verifyPropertyVal(client, COLLECTION_NAME, c1_s1_r2, "prop", "silly");
verifyUniquePropertyWithinCollection(client, COLLECTION_NAME, "property.preferredLeader"); verifyUniquePropertyWithinCollection(client, COLLECTION_NAME, "preferredLeader");
verifyUniquePropertyWithinCollection(client, COLLECTION_NAME1, "property.preferredLeader"); verifyUniquePropertyWithinCollection(client, COLLECTION_NAME1, "preferredLeader");
doPropertyAction(client, doPropertyAction(client,
"action", CollectionParams.CollectionAction.ADDREPLICAPROP.toLower(), "action", CollectionParams.CollectionAction.ADDREPLICAPROP.toLower(),
@ -496,12 +496,12 @@ public class TestCollectionAPI extends ReplicaPropertiesBase {
"property.value", "nonsense", "property.value", "nonsense",
SHARD_UNIQUE, "true"); SHARD_UNIQUE, "true");
verifyPropertyVal(client, COLLECTION_NAME, c1_s1_r2, "property.preferredleader", "true"); verifyPropertyVal(client, COLLECTION_NAME, c1_s1_r2, "preferredleader", "true");
verifyPropertyVal(client, COLLECTION_NAME, c1_s2_r1, "property.preferredleader", "true"); verifyPropertyVal(client, COLLECTION_NAME, c1_s2_r1, "preferredleader", "true");
verifyPropertyVal(client, COLLECTION_NAME, c1_s1_r1, "property.testprop", "nonsense"); verifyPropertyVal(client, COLLECTION_NAME, c1_s1_r1, "testprop", "nonsense");
verifyPropertyVal(client, COLLECTION_NAME, c1_s1_r2, "property.prop", "silly"); verifyPropertyVal(client, COLLECTION_NAME, c1_s1_r2, "prop", "silly");
verifyUniquePropertyWithinCollection(client, COLLECTION_NAME, "property.preferredLeader"); verifyUniquePropertyWithinCollection(client, COLLECTION_NAME, "preferredLeader");
verifyUniquePropertyWithinCollection(client, COLLECTION_NAME1, "property.preferredLeader"); verifyUniquePropertyWithinCollection(client, COLLECTION_NAME1, "preferredLeader");
doPropertyAction(client, doPropertyAction(client,
@ -513,12 +513,12 @@ public class TestCollectionAPI extends ReplicaPropertiesBase {
"property.value", "true", "property.value", "true",
SHARD_UNIQUE, "false"); SHARD_UNIQUE, "false");
verifyPropertyVal(client, COLLECTION_NAME, c1_s1_r2, "property.preferredleader", "true"); verifyPropertyVal(client, COLLECTION_NAME, c1_s1_r2, "preferredleader", "true");
verifyPropertyVal(client, COLLECTION_NAME, c1_s2_r1, "property.preferredleader", "true"); verifyPropertyVal(client, COLLECTION_NAME, c1_s2_r1, "preferredleader", "true");
verifyPropertyVal(client, COLLECTION_NAME, c1_s1_r1, "property.testprop", "true"); verifyPropertyVal(client, COLLECTION_NAME, c1_s1_r1, "testprop", "true");
verifyPropertyVal(client, COLLECTION_NAME, c1_s1_r2, "property.prop", "silly"); verifyPropertyVal(client, COLLECTION_NAME, c1_s1_r2, "prop", "silly");
verifyUniquePropertyWithinCollection(client, COLLECTION_NAME, "property.preferredLeader"); verifyUniquePropertyWithinCollection(client, COLLECTION_NAME, "preferredLeader");
verifyUniquePropertyWithinCollection(client, COLLECTION_NAME1, "property.preferredLeader"); verifyUniquePropertyWithinCollection(client, COLLECTION_NAME1, "preferredLeader");
doPropertyAction(client, doPropertyAction(client,
"action", CollectionParams.CollectionAction.DELETEREPLICAPROP.toLower(), "action", CollectionParams.CollectionAction.DELETEREPLICAPROP.toLower(),
@ -527,12 +527,12 @@ public class TestCollectionAPI extends ReplicaPropertiesBase {
"replica", c1_s1_r1, "replica", c1_s1_r1,
"property", "property.testprop"); "property", "property.testprop");
verifyPropertyVal(client, COLLECTION_NAME, c1_s1_r2, "property.preferredleader", "true"); verifyPropertyVal(client, COLLECTION_NAME, c1_s1_r2, "preferredleader", "true");
verifyPropertyVal(client, COLLECTION_NAME, c1_s2_r1, "property.preferredleader", "true"); verifyPropertyVal(client, COLLECTION_NAME, c1_s2_r1, "preferredleader", "true");
verifyPropertyNotPresent(client, COLLECTION_NAME, c1_s1_r1, "property.testprop"); verifyPropertyNotPresent(client, COLLECTION_NAME, c1_s1_r1, "testprop");
verifyPropertyVal(client, COLLECTION_NAME, c1_s1_r2, "property.prop", "silly"); verifyPropertyVal(client, COLLECTION_NAME, c1_s1_r2, "prop", "silly");
verifyUniquePropertyWithinCollection(client, COLLECTION_NAME, "property.preferredLeader"); verifyUniquePropertyWithinCollection(client, COLLECTION_NAME, "preferredLeader");
verifyUniquePropertyWithinCollection(client, COLLECTION_NAME1, "property.preferredLeader"); verifyUniquePropertyWithinCollection(client, COLLECTION_NAME1, "preferredLeader");
try { try {
doPropertyAction(client, doPropertyAction(client,
@ -549,12 +549,12 @@ public class TestCollectionAPI extends ReplicaPropertiesBase {
se.getMessage().contains("with the shardUnique parameter set to something other than 'true'")); se.getMessage().contains("with the shardUnique parameter set to something other than 'true'"));
} }
verifyPropertyVal(client, COLLECTION_NAME, c1_s1_r2, "property.preferredleader", "true"); verifyPropertyVal(client, COLLECTION_NAME, c1_s1_r2, "preferredleader", "true");
verifyPropertyVal(client, COLLECTION_NAME, c1_s2_r1, "property.preferredleader", "true"); verifyPropertyVal(client, COLLECTION_NAME, c1_s2_r1, "preferredleader", "true");
verifyPropertyNotPresent(client, COLLECTION_NAME, c1_s1_r1, "property.testprop"); verifyPropertyNotPresent(client, COLLECTION_NAME, c1_s1_r1, "testprop");
verifyPropertyVal(client, COLLECTION_NAME, c1_s1_r2, "property.prop", "silly"); verifyPropertyVal(client, COLLECTION_NAME, c1_s1_r2, "prop", "silly");
verifyUniquePropertyWithinCollection(client, COLLECTION_NAME, "property.preferredLeader"); verifyUniquePropertyWithinCollection(client, COLLECTION_NAME, "preferredLeader");
verifyUniquePropertyWithinCollection(client, COLLECTION_NAME1, "property.preferredLeader"); verifyUniquePropertyWithinCollection(client, COLLECTION_NAME1, "preferredLeader");
Map<String, String> origProps = getProps(client, COLLECTION_NAME, c1_s1_r1, Map<String, String> origProps = getProps(client, COLLECTION_NAME, c1_s1_r1,
"state", "core", "node_name", "base_url"); "state", "core", "node_name", "base_url");
@ -592,10 +592,10 @@ public class TestCollectionAPI extends ReplicaPropertiesBase {
"property.value", "base_url_bad"); "property.value", "base_url_bad");
// The above should be on new proeprties. // The above should be on new proeprties.
verifyPropertyVal(client, COLLECTION_NAME, c1_s1_r1, "property.state", "state_bad"); verifyPropertyVal(client, COLLECTION_NAME, c1_s1_r1, "state", "state_bad");
verifyPropertyVal(client, COLLECTION_NAME, c1_s1_r1, "property.core", "core_bad"); verifyPropertyVal(client, COLLECTION_NAME, c1_s1_r1, "core", "core_bad");
verifyPropertyVal(client, COLLECTION_NAME, c1_s1_r1, "property.node_name", "node_name_bad"); verifyPropertyVal(client, COLLECTION_NAME, c1_s1_r1, "node_name", "node_name_bad");
verifyPropertyVal(client, COLLECTION_NAME, c1_s1_r1, "property.base_url", "base_url_bad"); verifyPropertyVal(client, COLLECTION_NAME, c1_s1_r1, "base_url", "base_url_bad");
doPropertyAction(client, doPropertyAction(client,
"action", CollectionParams.CollectionAction.DELETEREPLICAPROP.toLower(), "action", CollectionParams.CollectionAction.DELETEREPLICAPROP.toLower(),
@ -630,10 +630,10 @@ public class TestCollectionAPI extends ReplicaPropertiesBase {
verifyPropertyVal(client, COLLECTION_NAME, c1_s1_r1, ent.getKey(), ent.getValue()); verifyPropertyVal(client, COLLECTION_NAME, c1_s1_r1, ent.getKey(), ent.getValue());
} }
verifyPropertyNotPresent(client, COLLECTION_NAME, c1_s1_r1, "property.state"); verifyPropertyNotPresent(client, COLLECTION_NAME, c1_s1_r1, "state");
verifyPropertyNotPresent(client, COLLECTION_NAME, c1_s1_r1, "property.core"); verifyPropertyNotPresent(client, COLLECTION_NAME, c1_s1_r1, "core");
verifyPropertyNotPresent(client, COLLECTION_NAME, c1_s1_r1, "property.node_name"); verifyPropertyNotPresent(client, COLLECTION_NAME, c1_s1_r1, "node_name");
verifyPropertyNotPresent(client, COLLECTION_NAME, c1_s1_r1, "property.base_url"); verifyPropertyNotPresent(client, COLLECTION_NAME, c1_s1_r1, "base_url");
} }
} }
@ -776,7 +776,7 @@ public class TestCollectionAPI extends ReplicaPropertiesBase {
Replica replica = docCollection.getReplica(replicaName); Replica replica = docCollection.getReplica(replicaName);
Map<String, String> propMap = new HashMap<>(); Map<String, String> propMap = new HashMap<>();
for (String prop : props) { for (String prop : props) {
propMap.put(prop, replica.getStr(prop)); propMap.put(prop, replica.getProperty(prop));
} }
return propMap; return propMap;
} }

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@ -103,7 +103,7 @@ public class TestReplicaProperties extends ReplicaPropertiesBase {
"collection", COLLECTION_NAME, "collection", COLLECTION_NAME,
"property", "preferredLeader"); "property", "preferredLeader");
verifyUniqueAcrossCollection(client, COLLECTION_NAME, "property.preferredleader"); verifyUniqueAcrossCollection(client, COLLECTION_NAME, "preferredleader");
doPropertyAction(client, doPropertyAction(client,
"action", CollectionParams.CollectionAction.BALANCESHARDUNIQUE.toString(), "action", CollectionParams.CollectionAction.BALANCESHARDUNIQUE.toString(),
@ -170,7 +170,7 @@ public class TestReplicaProperties extends ReplicaPropertiesBase {
"shardUnique", "true"); "shardUnique", "true");
verifyPropertyVal(client, COLLECTION_NAME, verifyPropertyVal(client, COLLECTION_NAME,
c1_s1_r1, "property.bogus1", "true"); c1_s1_r1, "bogus1", "true");
verifyPropertyVal(client, COLLECTION_NAME, verifyPropertyVal(client, COLLECTION_NAME,
c1_s1_r2, "property.bogus1", "whatever"); c1_s1_r2, "property.bogus1", "whatever");

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@ -159,6 +159,17 @@ public class Replica extends ZkNodeProps {
return this.type; return this.type;
} }
public String getProperty(String propertyName) {
final String propertyKey;
if (!propertyName.startsWith(ZkStateReader.PROPERTY_PROP_PREFIX)) {
propertyKey = ZkStateReader.PROPERTY_PROP_PREFIX+propertyName;
} else {
propertyKey = propertyName;
}
final String propertyValue = getStr(propertyKey);
return propertyValue;
}
@Override @Override
public String toString() { public String toString() {
return name + ':' + JSONUtil.toJSON(propMap, -1); // small enough, keep it on one line (i.e. no indent) return name + ':' + JSONUtil.toJSON(propMap, -1); // small enough, keep it on one line (i.e. no indent)

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@ -83,6 +83,7 @@ public class ZkStateReader implements Closeable {
public static final String NUM_SHARDS_PROP = "numShards"; public static final String NUM_SHARDS_PROP = "numShards";
public static final String LEADER_PROP = "leader"; public static final String LEADER_PROP = "leader";
public static final String PROPERTY_PROP = "property"; public static final String PROPERTY_PROP = "property";
public static final String PROPERTY_PROP_PREFIX = "property.";
public static final String PROPERTY_VALUE_PROP = "property.value"; public static final String PROPERTY_VALUE_PROP = "property.value";
public static final String MAX_AT_ONCE_PROP = "maxAtOnce"; public static final String MAX_AT_ONCE_PROP = "maxAtOnce";
public static final String MAX_WAIT_SECONDS_PROP = "maxWaitSeconds"; public static final String MAX_WAIT_SECONDS_PROP = "maxWaitSeconds";