MapperParsingException在django-haystack中使用elasticsearch做rebuild_index

问题描述

我正在使用 java 1.7.0_95 ， Django 1.8.4 ， Python 3.4.0 ， Django Rest Framework 3.1.3 ， ElasticSearch 2.3.1 ， pyelasticsearch 1.4 和 Django Haystack 2.4.1

每次尝试执行 python manage.py rebuild_index 时，在弹性搜索中遇到错误。这是错误：

 
 MapperParsingException [根映射定义具有不受支持的参数：[_boost：{null_value = 1.0，name = boost}]] 
在org.elasticsearch.index.mapper.DocumentMapperParser.checkNoRemainingFields（DocumentMapperParser.java:171）
在org.elasticsearch.index.mapper.DocumentMapperParser.parse（DocumentMapperParser.java:159）
在org.elasticsearch.index.mapper.DocumentMapperParser.parse（DocumentMapperParser.java:99）
在org.elasticsearch.index.mapper.MapperService.parse（MapperService.java:498）
在org.elasticsearch .cluster.metadata.MetaDataMappingService $ PutMappingExecutor.applyRequest（MetaDataMappingService.java:257）
在org.elasticsearch.cluster.metadata.MetaDataMappingService $ PutMappingExecutor.execute（MetaDataMappingService.java:230）
在org.elasticsearch .cluster.service.InternalClusterService.runTasksForExecutor（InternalClusterService.java:468）
在org.elasticsearch.cluster.service.InternalClusterService $ UpdateTask.run（InternalClusterService.java:772）
在org.elasticsearch.common.util.concurrent.PrioritizedEsThreadPoolExecutor $ TieBreakingPrioritizedRunnable.runAndClean（PrioritizedEthreadPoolExecutor.java:231）
在org.elasticsearch.common.util.concurrent.PrioritizedEsThreadPoolExecutor $ TieBreakingPrioritizedRunnable.run（PrioritizedEthreadPoolExecutor.java:194）
在java.util.concurrent.ThreadPoolExecutor.runWorker（ThreadPoolExecutor.java:1145）
在java.util.concurrent.ThreadPoolExecutor $ Worker.run（ThreadPoolExecutor.java:615）
在java.lang.Thread.run（Thread.java:745）
 

这是我的配置：

  HAYSTACK_CONNECTIONS = {
'default'：{ 
'ENGINE'：'haystack.backends.elasticsearch_backend.ElasticsearchSearchEngine'，
'URL'：'http://127.0.0.1:9200/'，
'INDEX_NA ME'：'haystack'，
}，
} 
 
 HAYSTACK_SIGNAL_PROCESSOR ='haystack.signals.RealtimeSignalProcessor'
 
 HAYSTACK_SEARCH_RESULTS_PER_PAGE = 40 
  

解决方案

有一个相关的 django-haystack issue以删除在 ElasticSearch > = 2：中不再支持的 boost p>



在此更改之前， django-haystack 在 ElasticSearch 后端的映射中使用 _boost 参数。改变主要分支。您现在可以执行以下操作：

• 安装开发版本的 django-haystack 直接从github：

    pip install -e git + https：//github.com/toastdriven/django- haystack.git@master#egg=django-haystack 
    




• 降级 ElasticSearch 到升级到最新的稳定版本之前，我认为这是

另外，这里是相关的讨论：

• 中创建为字符串而不是geo_point

I'm using java 1.7.0_95, Django 1.8.4, Python 3.4.0, Django Rest Framework 3.1.3, ElasticSearch 2.3.1, pyelasticsearch 1.4 and Django Haystack 2.4.1

I'm experiencing an error in elasticsearch every time I try to do python manage.py rebuild_index. This is the error:

MapperParsingException[Root mapping definition has unsupported parameters:  [_boost : {null_value=1.0, name=boost}]]
        at org.elasticsearch.index.mapper.DocumentMapperParser.checkNoRemainingFields(DocumentMapperParser.java:171)
        at org.elasticsearch.index.mapper.DocumentMapperParser.parse(DocumentMapperParser.java:159)
        at org.elasticsearch.index.mapper.DocumentMapperParser.parse(DocumentMapperParser.java:99)
        at org.elasticsearch.index.mapper.MapperService.parse(MapperService.java:498)
        at org.elasticsearch.cluster.metadata.MetaDataMappingService$PutMappingExecutor.applyRequest(MetaDataMappingService.java:257)
        at org.elasticsearch.cluster.metadata.MetaDataMappingService$PutMappingExecutor.execute(MetaDataMappingService.java:230)
        at org.elasticsearch.cluster.service.InternalClusterService.runTasksForExecutor(InternalClusterService.java:468)
        at org.elasticsearch.cluster.service.InternalClusterService$UpdateTask.run(InternalClusterService.java:772)
        at org.elasticsearch.common.util.concurrent.PrioritizedEsThreadPoolExecutor$TieBreakingPrioritizedRunnable.runAndClean(PrioritizedEsThreadPoolExecutor.java:231)
        at org.elasticsearch.common.util.concurrent.PrioritizedEsThreadPoolExecutor$TieBreakingPrioritizedRunnable.run(PrioritizedEsThreadPoolExecutor.java:194)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
        at java.lang.Thread.run(Thread.java:745)

Here is my configuration:

HAYSTACK_CONNECTIONS = {
    'default': {
        'ENGINE': 'haystack.backends.elasticsearch_backend.ElasticsearchSearchEngine',
        'URL': 'http://127.0.0.1:9200/',
        'INDEX_NAME': 'haystack',
    },
}

HAYSTACK_SIGNAL_PROCESSOR = 'haystack.signals.RealtimeSignalProcessor'

HAYSTACK_SEARCH_RESULTS_PER_PAGE = 40

解决方案

There is a relevant django-haystack issue to remove the boost parameter which is no longer supported in ElasticSearch >= 2:

• Remove boost which is now unsupported

Before that change, django-haystack was using the _boost parameter in the mapping for the ElasticSearch backend. The change was made to the master branch. You can do things at this moment:

• install the development version of django-haystack directly from github:

  pip install -e git+https://github.com/toastdriven/django-haystack.git@master#egg=django-haystack
  

• downgrade ElasticSearch to the latest stable version before the upgrade to the 2nd, I think it is 1.7.3

Also, here is the relevant discussion:

• Django haystack LocationField created as string instead of geo_point in elasticsearch

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