HTTP狀態：500 - 服務器錯誤而產生的Neo4j HA集羣

Question

在創建使用2臺機器，進行必要的修改和啓動Neo4j的售後服務Neo4j的HA集羣，認證卡在從Neo4j的網絡用戶界面彈出，詢問用戶名和密碼即使在兩個實例的neo4j-server.properties文件中禁用了安全性。

對於輸入錯誤的密碼，它顯示的錯誤無效的用戶名或密碼，但拋出一個錯誤「HTTP狀態：500 - 服務器錯誤」進入正確的密碼。

中的console.log顯示不同的畫面，但：

ERROR Failed to start transaction. Timeout waiting for database to become available and allow new transactions. Waited 2m. 1 reasons for blocking: High Availability member state not ready. 
org.neo4j.graphdb.TransactionFailureException: Timeout waiting for database to become available and allow new transactions. Waited 2m. 1 reasons for blocking: High Availability member state not ready. 
    at org.neo4j.kernel.impl.factory.GraphDatabaseFacade.checkAvailability(GraphDatabaseFacade.java:349) 
    at org.neo4j.kernel.impl.factory.GraphDatabaseFacade.beginTx(GraphDatabaseFacade.java:298) 
    at org.neo4j.server.rest.transactional.TransitionalPeriodTransactionMessContainer.newTransaction(TransitionalPeriodTransactionMessContainer.java:39) 
    at org.neo4j.server.rest.transactional.TransactionHandle.ensureActiveTransaction(TransactionHandle.java:242) 
    at org.neo4j.server.rest.transactional.TransactionHandle.commit(TransactionHandle.java:144) 
    at org.neo4j.server.rest.web.TransactionalService$2.write(TransactionalService.java:211) 
    at com.sun.jersey.core.impl.provider.entity.StreamingOutputProvider.writeTo(StreamingOutputProvider.java:71) 
    at com.sun.jersey.core.impl.provider.entity.StreamingOutputProvider.writeTo(StreamingOutputProvider.java:57) 
    at com.sun.jersey.spi.container.ContainerResponse.write(ContainerResponse.java:302) 
    at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1510) 
    at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1419) 
    at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1409) 
    at com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:409) 
    at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:558) 
    at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:733) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) 
    at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:800) 
    at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1669) 
    at org.neo4j.server.rest.dbms.AuthorizationFilter.doFilter(AuthorizationFilter.java:116) 
    at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652) 
    at org.neo4j.server.rest.web.CollectUserAgentFilter.doFilter(CollectUserAgentFilter.java:69) 
    at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652) 
    at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:585) 
    at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:221) 
    at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1125) 
    at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515) 
    at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185) 
    at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1059) 
    at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) 
    at org.eclipse.jetty.server.handler.HandlerList.handle(HandlerList.java:52) 
    at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97) 
    at org.eclipse.jetty.server.Server.handle(Server.java:497) 
    at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:310) 
    at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:248) 
    at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:540) 
    at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:620) 
    at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:540) 
    at java.lang.Thread.run(Thread.java:745) 

Answer 1

消息說什麼，集羣還沒有準備好。

超時等待數據庫變爲可用，並允許新 交易。等待2米。 1個原因阻止：高可用性 成員國沒有準備好。 org.neo4j.graphdb.TransactionFailureException： 超時等待數據庫變爲可用，並允許新 交易。等待2米。 1個原因阻止：高可用性 成員國沒有準備好。

您需要至少3臺機器的法定數才能運行集羣。