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我的目标是有两个节点。节点A应该写一些顶点，节点B应该能够读取这些顶点。如何使用OrientDB设置嵌入式主/主复制？
到目前为止，我的榛色发现工作得很好。 OrientDB还会将任何找到的数据库从nodeA热部署到nodeB。不幸的是，节点A上的任何写入都不会被复制到节点B.
我的设置：
orientdb服务器-config.xml中：
简体版（从orientdb社区的tar.gz复制）
％NODENAME％的用nodeA或nodeB代替。
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<orient-server>
<handlers>
<handler
class="com.orientechnologies.orient.graph.handler.OGraphServerHandler">
<parameters>
<parameter name="enabled" value="true" />
<parameter name="graph.pool.max" value="50" />
</parameters>
</handler>
<!-- CLUSTER PLUGIN, TO TURN ON SET THE 'ENABLED' PARAMETER TO 'true' -->
<handler
class="com.orientechnologies.orient.server.hazelcast.OHazelcastPlugin">
<parameters>
<parameter name="nodeName" value="%NODENAME%" />
<parameter name="enabled" value="true" />
<parameter name="configuration.db.default"
value="config/default-distributed-db-config.json" />
<parameter name="configuration.hazelcast" value="config/hazelcast.xml" />
</parameters>
</handler>
</handlers>
<network>
<sockets>
<socket
implementation="com.orientechnologies.orient.server.network.OServerSSLSocketFactory"
name="ssl">
<parameters>
<parameter value="false" name="network.ssl.clientAuth" />
<parameter value="config/cert/orientdb.ks" name="network.ssl.keyStore" />
<parameter value="password" name="network.ssl.keyStorePassword" />
<parameter value="config/cert/orientdb.ks" name="network.ssl.trustStore" />
<parameter value="password" name="network.ssl.trustStorePassword" />
</parameters>
</socket>
<socket
implementation="com.orientechnologies.orient.server.network.OServerSSLSocketFactory"
name="https">
<parameters>
<parameter value="false" name="network.ssl.clientAuth" />
<parameter value="config/cert/orientdb.ks" name="network.ssl.keyStore" />
<parameter value="password" name="network.ssl.keyStorePassword" />
<parameter value="config/cert/orientdb.ks" name="network.ssl.trustStore" />
<parameter value="password" name="network.ssl.trustStorePassword" />
</parameters>
</socket>
</sockets>
<protocols>
<!-- Default registered protocol. It reads commands using the HTTP protocol
and write data locally -->
<protocol name="binary"
implementation="com.orientechnologies.orient.server.network.protocol.binary.ONetworkProtocolBinary" />
<protocol name="http"
implementation="com.orientechnologies.orient.server.network.protocol.http.ONetworkProtocolHttpDb" />
</protocols>
<listeners>
<listener protocol="binary" ip-address="0.0.0.0" port-range="2424-2430"
socket="default" />
<!-- <listener protocol="binary" ip-address="0.0.0.0" port-range="2434-2440"
socket="ssl"/> -->
<listener protocol="http" ip-address="0.0.0.0" port-range="2480-2490"
socket="default">
<parameters>
<!-- Connection's custom parameters. If not specified the global configuration
will be taken -->
<parameter name="network.http.charset" value="utf-8" />
<parameter value="true" name="network.http.jsonResponseError" />
<!-- Define additional HTTP headers to always send as response -->
<!-- Allow cross-site scripting -->
<!-- parameter name="network.http.additionalResponseHeaders" value="Access-Control-Allow-Origin:
*;Access-Control-Allow-Credentials: true"/-->
</parameters>
<commands>
<command
pattern="GET|www GET|studio/ GET| GET|*.htm GET|*.html GET|*.xml GET|*.jpeg GET|*.jpg GET|*.png GET|*.gif GET|*.js GET|*.css GET|*.swf GET|*.ico GET|*.txt GET|*.otf GET|*.pjs GET|*.svg GET|*.json GET|*.woff GET|*.woff2 GET|*.ttf GET|*.svgz"
implementation="com.orientechnologies.orient.server.network.protocol.http.command.get.OServerCommandGetStaticContent">
<parameters>
<!-- Don't cache html resources in development mode -->
<entry name="http.cache:*.htm *.html"
value="Cache-Control: no-cache, no-store, max-age=0, must-revalidate\r\nPragma: no-cache" />
<!-- Default caching -->
<entry name="http.cache:default" value="Cache-Control: max-age=120" />
</parameters>
</command>
<command pattern="GET|gephi/*"
implementation="com.orientechnologies.orient.graph.server.command.OServerCommandGetGephi" />
</commands>
</listener>
</listeners>
<cluster>
</cluster>
</network>
<!-- <storages> <storage name="db_%NODENAME%" path="%DB_PATH%" userName="admin"
userPassword="admin" loaded-at-startup="true" /> </storages> -->
<users>
<user name="root" password="finger" resources="*" />
<user name="admin" password="finger" resources="*" />
</users>
<properties>
<!-- DATABASE POOL: size min/max -->
<entry name="db.pool.min" value="1" />
<entry name="db.pool.max" value="50" />
<!-- PROFILER: configures the profiler as <seconds-for-snapshot>,<archive-snapshot-size>,<summary-size> -->
<entry name="profiler.enabled" value="true" />
<!-- <entry name="profiler.config" value="30,10,10" /> -->
<entry name="plugin.directory" value="%PLUGIN_DIRECTORY%" />
<!-- LOG: enable/Disable logging. Levels are: finer, fine, finest, info,
warning -->
<entry name="log.console.level" value="%CONSOLE_LOG_LEVEL%" />
<entry name="log.file.level" value="%FILE_LOG_LEVEL%" />
</properties>
</orient-server>
默认分布式-DB-config.json：
{
"autoDeploy": true,
"hotAlignment": true,
"executionMode": "synchronous",
"readQuorum": 1,
"writeQuorum": 1,
"failureAvailableNodesLessQuorum": false,
"readYourWrites": true,
"servers": {
"*": "master"
},
"clusters": {
"internal": {
},
"index": {
},
"*": {
"servers": ["<NEW_NODE>"]
}
}
}
开始O服务器：
O服务器服务器= OServerMain.create（）;
server.startup（getOrientServerConfig（））;
server.activate（）;
等到两个节点都启动。
每个节点连接到图形数据库。 OrientGraphFactory factory = new OrientGraphFactory（“plocal：”+ new File（“databases/db_testdb”）。getAbsolutePath（））;
- NodeA将使用getNoTx添加新的顶点。
- NodeB将只读取图形并使用getNoTx计算找到的顶点。
我创建了一个非常basic maven project其中包含两个测试，将启动nodeA和nodeB上。