我已经启动了一个带有两个节点的OrientDB Enterprise 2.7。以下是我的设置外观。
CONFIGURED SERVERS
+----+------+------+-----------+-------------------+---------------+---------------+-----------------+-----------------+---------+
|# |Name |Status|Connections|StartedOn |Binary |HTTP |UsedMemory |FreeMemory |MaxMemory|
+----+------+------+-----------+-------------------+---------------+---------------+-----------------+-----------------+---------+
|0 |Batman|ONLINE|3 |2016-08-16 15:28:23|10.0.0.195:2424|10.0.0.195:2480|480.98MB (94.49%)|28.02MB (5.51%) |509.00MB |
|1 |Robin |ONLINE|3 |2016-08-16 15:29:40|10.0.0.37:2424 |10.0.0.37:2480 |403.50MB (79.35%)|105.00MB (20.65%)|508.50MB |
+----+------+------+-----------+-------------------+---------------+---------------+-----------------+-----------------+---------+
orientdb {db=SocialPosts3}> clusters
现在我有两个Vertex类User和Notes。边缘类型已发布。所有顶点和边都有属性。 Vertex类上也有唯一的索引。
我开始使用Java API推送数据：
while (retry++ != MAX_RETRY) {
try {
properties.put(uniqueIndexname, uniqueIndexValue);
Iterable<Vertex> resultset = graph.getVertices(className, new String[] { uniqueIndexname },
new Object[] { uniqueIndexValue });
if (resultset != null) {
vertex = resultset.iterator().hasNext() ? resultset.iterator().next() : null;
}
if (vertex == null) {
vertex = graph.addVertex("class:" + className, properties);
graph.commit();
return vertex;
} else {
for (String key : properties.keySet()) {
vertex.setProperty(key, properties.get(key));
}
}
logger.info("Completed upserting vertex " + uniqueIndexValue);
graph.commit();
break;
} catch (ONeedRetryException ex) {
logger.warn("Retry for exception - " + uniqueIndexValue);
} catch (Exception e) {
logger.error("Can not create vertex - " + e.getMessage());
graph.rollback();
break;
}
}
同样适用于Notes和边缘。 我填充了大约20万用户和3.5M笔记。现在我注意到所有数据只发送到一个节点。
在运行“clusters”命令时，我看到所有集群都在同一节点上创建，因此所有数据仅存在于一个节点上。
|22 |note | 26|Note | | 75| Robin | [Batman] | true |
|23 |note_1 | 27|Note | |1750902| Batman | [Robin] | true |
|24 |note_2 | 28|Note | |1750789| Batman | [Robin] | true |
|25 |note_3 | 29|Note | | 75| Robin | [Batman] | true |
|26 |posted | 34|Posted | | 0| Robin | [Batman] | true |
|27 |posted_1 | 35|Posted | | 1| Robin | [Batman] | true |
|28 |posted_2 | 36|Posted | |1739823| Batman | [Robin] | true |
|29 |posted_3 | 37|Posted | |1749250| Batman | [Robin] | true |
|30 |user | 30|User | | 102059| Batman | [Robin] | true |
|31 |user_1 | 31|User | | 1| Robin | [Batman] | true |
|32 |user_2 | 32|User | | 0| Robin | [Batman] | true |
|33 |user_3 | 33|User | | 102127| Batman | [Robin] | true |
我看到一个节点的CPU是99％，其他是<1％。
如何确保数据在群集中的所有节点上均匀分布？
更新： 数据库传播到两个节点。我可以登录node studio并查看列出的数据库。查询任何节点也会得到相同的结果，因此节点是同步的。
服务器从其中一个节点记录，在另一个节点上几乎相同。
2016-08-18 19:28:49:668 INFO [Robin]<-[Batman] Received new status Batman.SocialPosts3=SYNCHRONIZING [OHazelcastPlugin]
2016-08-18 19:28:49:670 INFO [Robin] Current node started as MASTER for database 'SocialPosts3' [OHazelcastPlugin]
2016-08-18 19:28:49:671 INFO [Robin] New distributed configuration for database: SocialPosts3 (version=2)
CLUSTER CONFIGURATION (LEGEND: X = Owner, o = Copy)
+--------+-----------+----------+-------------+
| | | | MASTER |
| | | |SYNCHRONIZING|
+--------+-----------+----------+-------------+
|CLUSTER |writeQuorum|readQuorum| Batman |
+--------+-----------+----------+-------------+
|* | 1 | 1 | X |
|internal| 1 | 1 | |
+--------+-----------+----------+-------------+
[OHazelcastPlugin]
2016-08-18 19:28:49:671 INFO [Robin] Saving distributed configuration file for database 'SocialPosts3' to: /mnt/ebs/orientdb/orientdb-enterprise-2.2.7/databases/SocialPosts3/distributed-config.json [OHazelcastPlugin]
2016-08-18 19:28:49:766 INFO [Robin] Adding node 'Robin' in partition: SocialPosts3 db=[*] v=3 [ODistributedDatabaseImpl$1]
2016-08-18 19:28:49:767 INFO [Robin] New distributed configuration for database: SocialPosts3 (version=3)
CLUSTER CONFIGURATION (LEGEND: X = Owner, o = Copy)
+--------+-----------+----------+-------------+-------------+
| | | | MASTER | MASTER |
| | | |SYNCHRONIZING|SYNCHRONIZING|
+--------+-----------+----------+-------------+-------------+
|CLUSTER |writeQuorum|readQuorum| Batman | Robin |
+--------+-----------+----------+-------------+-------------+
|* | 2 | 1 | X | o |
|internal| 2 | 1 | | |
+--------+-----------+----------+-------------+-------------+
[OHazelcastPlugin]
2016-08-18 19:28:49:767 INFO [Robin] Saving distributed configuration file for database 'SocialPosts3' to: /mnt/ebs/orientdb/orientdb-enterprise-2.2.7/databases/SocialPosts3/distributed-config.json [OHazelcastPlugin]
2016-08-18 19:28:49:769 WARNI [Robin]->[[Batman]] Requesting deploy of database 'SocialPosts3' on local server... [OHazelcastPlugin]
2016-08-18 19:28:52:192 INFO [Robin]<-[Batman] Copying remote database 'SocialPosts3' to: /tmp/orientdb/install_SocialPosts3.zip [OHazelcastPlugin]
2016-08-18 19:28:52:193 INFO [Robin]<-[Batman] Installing database 'SocialPosts3' to: /mnt/ebs/orientdb/orientdb-enterprise-2.2.7/databases/SocialPosts3... [OHazelcastPlugin]
2016-08-18 19:28:52:193 INFO [Robin] - writing chunk #1 offset=0 size=43.38KB [OHazelcastPlugin]
2016-08-18 19:28:52:194 INFO [Robin] Database copied correctly, size=43.38KB [ODistributedAbstractPlugin$3]
2016-08-18 19:28:52:279 WARNI {db=SocialPosts3} Storage 'SocialPosts3' was not closed properly. Will try to recover from write ahead log [OEnterpriseLocalPaginatedStorage]
2016-08-18 19:28:52:279 SEVER {db=SocialPosts3} Restore is not possible because write ahead log is empty. [OEnterpriseLocalPaginatedStorage]
2016-08-18 19:28:52:279 INFO {db=SocialPosts3} Storage data recover was completed [OEnterpriseLocalPaginatedStorage]
2016-08-18 19:28:52:294 INFO {db=SocialPosts3} [Robin] Installed database 'SocialPosts3' (LSN=OLogSequenceNumber{segment=0, position=24}) [OHazelcastPlugin]
2016-08-18 19:28:52:304 INFO [Robin] Reassigning cluster ownership for database SocialPosts3 [OHazelcastPlugin]
2016-08-18 19:28:52:305 INFO [Robin] New distributed configuration for database: SocialPosts3 (version=3)
CLUSTER CONFIGURATION (LEGEND: X = Owner, o = Copy)
+--------+----+-----------+----------+-------------+-------------+
| | | | | MASTER | MASTER |
| | | | |SYNCHRONIZING|SYNCHRONIZING|
+--------+----+-----------+----------+-------------+-------------+
|CLUSTER | id|writeQuorum|readQuorum| Batman | Robin |
+--------+----+-----------+----------+-------------+-------------+
|* | | 2 | 1 | X | o |
|internal| 0| 2 | 1 | | |
+--------+----+-----------+----------+-------------+-------------+
[OHazelcastPlugin]
2016-08-18 19:28:52:305 INFO [Robin] Distributed servers status:
+------+------+------------------------------------+-----+-------------------+---------------+---------------+--------------------------+
|Name |Status|Databases |Conns|StartedOn |Binary |HTTP |UsedMemory |
+------+------+------------------------------------+-----+-------------------+---------------+---------------+--------------------------+
|Batman|ONLINE|GoodBoys=ONLINE (MASTER) |5 |2016-08-16 15:28:23|10.0.0.195:2424|10.0.0.195:2480|426.47MB/509.00MB (83.79%)|
| | |SocialPosts=ONLINE (MASTER) | | | | | |
| | |GratefulDeadConcerts=ONLINE (MASTER)| | | | | |
|Robin*|ONLINE|GoodBoys=ONLINE (MASTER) |3 |2016-08-16 15:29:40|10.0.0.37:2424 |10.0.0.37:2480 |353.77MB/507.50MB (69.71%)|
| | |SocialPosts=ONLINE (MASTER) | | | | | |
| | |GratefulDeadConcerts=ONLINE (MASTER)| | | | | |
| | |SocialPosts3=SYNCHRONIZING (MASTER) | | | | | |
| | |SocialPosts2=ONLINE (MASTER) | | | | | |
+------+------+------------------------------------+-----+-------------------+---------------+---------------+--------------------------+