From e90baa482f87b8746bb869600627191c4975e28a Mon Sep 17 00:00:00 2001 From: tangquanlie Date: Thu, 4 Aug 2016 12:04:21 +0800 Subject: [PATCH 1/3] translated --- 070_Index_Mgmt/50_Reindexing.asciidoc | 36 ++++++++++----------------- 1 file changed, 13 insertions(+), 23 deletions(-) diff --git a/070_Index_Mgmt/50_Reindexing.asciidoc b/070_Index_Mgmt/50_Reindexing.asciidoc index a0d54ed14..fe0e540af 100644 --- a/070_Index_Mgmt/50_Reindexing.asciidoc +++ b/070_Index_Mgmt/50_Reindexing.asciidoc @@ -1,32 +1,25 @@ [[reindex]] === Reindexing Your Data +=== 重新索引你的数据 -Although you can add new types to an index, or add new fields to a type, you -can't add new analyzers or make changes to existing fields.((("reindexing")))((("indexing", "reindexing your data"))) If you were to do -so, the data that had already been indexed would be incorrect and your -searches would no longer work as expected. +尽管可以增加新的类型到索引中，或者增加新的字段到类型中，但是不能添加新的分析器或者对现有的字段做改动。 + ((("reindexing")))((("indexing", "reindexing your data"))) 如果你那么做的话，结果就是那些已经被索引的数据就不正确， +搜索也不能正常工作。 -The simplest way to apply these changes to your existing data is to -reindex: create a new index with the new settings and copy all of your -documents from the old index to the new index. +更新现有数据最简单的办法就是重新索引：用新的设置创建新的索引并把文档从旧的索引复制到新的索引。 -One of the advantages of the `_source` field is that you already have the -whole document available to you in Elasticsearch itself. You don't have to -rebuild your index from the database, which is usually much slower. +字段 `_source` 的一个优点是在Elasticsearch中已经有整个文档。你不必从源数据中重建索引，而且那样通常比较慢。 -To reindex all of the documents from the old index efficiently, use -<> to retrieve batches((("using in reindexing documents"))) of documents from the old index, -and the <> to push them into the new index. +为了有效的重新索引所有在旧的索引中的文档，用 <> 从旧的索引检索批量文档 ((("using in reindexing documents"))) ， +然后用 <> 把文档推送到新的索引中。 -Beginning with Elasticsearch v2.3.0, a {ref}/docs-reindex.html[Reindex API] has been introduced. It enables you -to reindex your documents without requiring any plugin nor external tool. +从Elasticsearch v2.3.0开始， {ref}/docs-reindex.html[Reindex API] 被引入。它能够对文档重建索引而不需要任何插件或外部工具。 .Reindexing in Batches **** -You can run multiple reindexing jobs at the same time, but you obviously don't -want their results to overlap. Instead, break a big reindex down into smaller -jobs by filtering on a date or timestamp field: +同时并行运行多个重建索引任务，但是你显然不希望结果有重叠。正确的做法是按日期或者时间 +这样的字段作为过滤条件把大的重建索引分成小的任务： [source,js] -------------------------------------------------- @@ -46,11 +39,8 @@ GET /old_index/_search?scroll=1m -------------------------------------------------- -If you continue making changes to the old index, you will want to make -sure that you include the newly added documents in your new index as well. -This can be done by rerunning the reindex process, but again filtering -on a date field to match only documents that have been added since the -last reindex process started. +如果旧的索引持续会有变化，你希望新的索引中也包括那些新加的文档。那就可以对新加的文档做重新索引， +但还是要用日期类字段过滤来匹配那些新加的文档。 **** From 5a00618524d3bde65e4f1d010da80c04988d0cd4 Mon Sep 17 00:00:00 2001 From: tangquanlie Date: Thu, 4 Aug 2016 12:41:47 +0800 Subject: [PATCH 2/3] translate overs --- 070_Index_Mgmt/50_Reindexing.asciidoc | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/070_Index_Mgmt/50_Reindexing.asciidoc b/070_Index_Mgmt/50_Reindexing.asciidoc index fe0e540af..25b5c16a7 100644 --- a/070_Index_Mgmt/50_Reindexing.asciidoc +++ b/070_Index_Mgmt/50_Reindexing.asciidoc @@ -1,5 +1,4 @@ [[reindex]] -=== Reindexing Your Data === 重新索引你的数据 尽管可以增加新的类型到索引中，或者增加新的字段到类型中，但是不能添加新的分析器或者对现有的字段做改动。 @@ -15,7 +14,7 @@ 从Elasticsearch v2.3.0开始， {ref}/docs-reindex.html[Reindex API] 被引入。它能够对文档重建索引而不需要任何插件或外部工具。 -.Reindexing in Batches +.批量重新索引 **** 同时并行运行多个重建索引任务，但是你显然不希望结果有重叠。正确的做法是按日期或者时间 From 7ac7604b8470a30fa9a3acaaa27bd99832cee204 Mon Sep 17 00:00:00 2001 From: tangquanlie Date: Thu, 22 Sep 2016 22:59:44 +0800 Subject: [PATCH 3/3] change review result and change branch name --- 070_Index_Mgmt/50_Reindexing.asciidoc | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/070_Index_Mgmt/50_Reindexing.asciidoc b/070_Index_Mgmt/50_Reindexing.asciidoc index 25b5c16a7..de15cd59f 100644 --- a/070_Index_Mgmt/50_Reindexing.asciidoc +++ b/070_Index_Mgmt/50_Reindexing.asciidoc @@ -5,7 +5,7 @@ ((("reindexing")))((("indexing", "reindexing your data"))) 如果你那么做的话，结果就是那些已经被索引的数据就不正确， 搜索也不能正常工作。 -更新现有数据最简单的办法就是重新索引：用新的设置创建新的索引并把文档从旧的索引复制到新的索引。 +对现有数据的这类改变最简单的办法就是重新索引：用新的设置创建新的索引并把文档从旧的索引复制到新的索引。 字段 `_source` 的一个优点是在Elasticsearch中已经有整个文档。你不必从源数据中重建索引，而且那样通常比较慢。