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我一直在本地、开发和登台服务器上使用 Neo4j ElasticSearch 集成模块 ( https://github.com/neo4j-contrib/neo4j-elasticsearch )，因为 elasticsearch 服务正在服务器本身上运行。

但是，当使用 Amazon AWS ElasticSearch 服务并将数据添加到 Neo4j 数据库中时 - 有时数据不会插入到弹性搜索中。

在 Neo4j 和 Elasticsearch 之间进行事务时不会引发错误或异常。

因此，调试变得越来越困难，因为它为什么会发生。

任何想法表示赞赏。

编辑：

至于网络设置，服务器是安装了 Neo4j 的 EC2 实例，所讨论的 ElasticSearch 服务是“AWS ElasticSearch Service”。因为它有时确实有效，所以我不明白这里的网络有任何问题。

Neo4j 版本：2.3.6 ElasticSearch 版本：2.3.2

再次指出，这仅在“AWS ElasticSearch 服务”连接时发生，而不是与在 EC2 实例本身上运行的服务连接时发生。

了解是否有任何方法可以记录 Neo4j 和 ElasticSearch 服务之间发生的事务，这将非常有帮助。

以下是日志文件的内容：/var/log/neo4j/console.log

2016-09-02 12:27:47.494+0000 INFO  Remote interface ready and available at http://0.0.0.0:7474/
12:28:42.520 [NodeChecker RUNNING] ERROR i.s.c.config.discovery.NodeChecker - Error executing NodesInfo!
io.searchbox.client.config.exception.NoServerConfiguredException: No Server is assigned to client to connect
        at io.searchbox.client.AbstractJestClient$ServerPool.getNextServer(AbstractJestClient.java:132) ~[jest-common-2.0.2.jar:na]
        at io.searchbox.client.AbstractJestClient.getNextServer(AbstractJestClient.java:81) ~[jest-common-2.0.2.jar:na]
        at io.searchbox.client.http.JestHttpClient.prepareRequest(JestHttpClient.java:80) ~[jest-2.0.2.jar:na]
        at io.searchbox.client.http.JestHttpClient.execute(JestHttpClient.java:46) ~[jest-2.0.2.jar:na]
        at io.searchbox.client.config.discovery.NodeChecker.runOneIteration(NodeChecker.java:65) ~[jest-common-2.0.2.jar:na]
        at com.google.common.util.concurrent.AbstractScheduledService$ServiceDelegate$Task.run(AbstractScheduledService.java:189) [guava-19.0.jar:na]
        at com.google.common.util.concurrent.Callables$3.run(Callables.java:100) [guava-19.0.jar:na]
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [na:1.8.0_101]
        at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308) [na:1.8.0_101]
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) [na:1.8.0_101]
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) [na:1.8.0_101]
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_101]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_101]
        at java.lang.Thread.run(Thread.java:745) [na:1.8.0_101]
12:28:42.540 [NodeChecker RUNNING] INFO  i.s.client.AbstractJestClient - Setting server pool to a list of 1 servers: [ELASTICSEARCH_URL]
12:29:42.541 [NodeChecker RUNNING] DEBUG i.s.client.http.JestHttpClient - GET method created based on client request
12:29:42.541 [NodeChecker RUNNING] DEBUG i.s.client.http.JestHttpClient - Request method=GET url=ELASTICSEARCH_URL/_nodes/_all/http
12:29:42.553 [NodeChecker RUNNING] DEBUG io.searchbox.action.AbstractAction - Request and operation succeeded
12:29:42.553 [NodeChecker RUNNING] DEBUG i.s.c.config.discovery.NodeChecker - Discovered 0 HTTP hosts:
12:29:42.553 [NodeChecker RUNNING] INFO  i.s.client.AbstractJestClient - Setting server pool to a list of 0 servers: []
12:29:42.553 [NodeChecker RUNNING] WARN  i.s.client.AbstractJestClient - No servers are currently available to connect.

API 的响应：ELASTICSEARCH_URL/_nodes/_all/http

EC2 实例：

{"cluster_name":"elasticsearch","nodes":{"X9zagEOlSK-h3l9dSG08PA":{"name":"Her","transport_address":"172.31.50.210:9300","host":"172.31.50.210","ip":"172.31.50.210","version":"2.3.0","build":"8371be8","http_address":"172.31.50.210:9200","http":{"bound_address":["[::]:9200"],"publish_address":"172.31.50.210:9200","max_content_length_in_bytes":104857600}}}}

AWS ElasticSearch 实例：

{"cluster_name":"102372860153:ES_DONAIN_NAME","nodes":{"kXO7l2ZyRgaDq44Ohx4qCA":{"name":"Cassie Lang","version":"2.3.2","build":"0944b4b"}}}
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