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SOLR-11848: Ref Guide: include info on grouping operations and using curl for large files. This closes #303.

This commit is contained in:
Cassandra Targett 2018-02-01 15:24:14 -06:00
parent 95122e1448
commit a4320aab8d
2 changed files with 30 additions and 1 deletions
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4
solr/CHANGES.txt
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@ -181,7 +181,7 @@ Bug Fixes
* SOLR-11873: Use time based expiration cache in all necessary places in HdfsDirectoryFactory. (Mihaly Toth via Mark Miller)
* SOLR-11661: New HDFS collection reuses unremoved data from a deleted HDFS collection with same name causes
* SOLR-11661: New HDFS collection reuses unremoved data from a deleted HDFS collection with same name causes
inconsistent view of documents (Cao Manh Dat, shalin)
Optimizations
@ -245,6 +245,8 @@ Other Changes
* SOLR-11067: REPLACENODE should identify appropriate nodes if targetNode is not provided (noble)
* SOLR-11848: Update Ref Guide to include info on grouping operations and using curl for large files. (Dariusz Wojtas via Cassandra Targett)
================== 7.2.1 ==================
Consult the LUCENE_CHANGES.txt file for additional, low level, changes in this release.

27
solr/solr-ref-guide/src/uploading-data-with-index-handlers.adoc
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@ -136,6 +136,26 @@ When using the Join query parser in a Delete By Query, you should use the `score
The rollback command rolls back all add and deletes made to the index since the last commit. It neither calls any event listeners nor creates a new searcher. Its syntax is simple: `<rollback/>`.
==== Grouping Operations
You can post several commands in a single XML file by grouping them with the surrounding `<update>` element.
[source,xml]
----
<update>
<add>
<doc><!-- doc 1 content --></doc>
</add>
<add>
<doc><!-- doc 2 content --></doc>
</add>
<delete>
<id>0002166313</id>
</delete>
</update>
----
=== Using curl to Perform Updates
You can use the `curl` utility to perform any of the above commands, using its `--data-binary` option to append the XML message to the `curl` command, and generating a HTTP POST request. For example:
@ -162,6 +182,13 @@ For posting XML messages contained in a file, you can use the alternative form:
curl http://localhost:8983/solr/my_collection/update -H "Content-Type: text/xml" --data-binary @myfile.xml
----
The approach above works well, but using the `--data-binary` option causes `curl` to load the whole `myfile.xml` into memory before posting it to server. This may be problematic when dealing with multi-gigabyte files. This alternative `curl` command performs equivalent operations but with minimal `curl` memory usage:
[source,bash]
----
curl http://localhost:8983/solr/my_collection/update -H "Content-Type: text/xml" -T "myfile.xml" -X POST
----
Short requests can also be sent using a HTTP GET command, if enabled in <<requestdispatcher-in-solrconfig.adoc#requestparsers-element,RequestDispatcher in SolrConfig>> element, URL-encoding the request, as in the following. Note the escaping of "<" and ">":
[source,bash]