As the title states, this little project will help you to save your collection in json format and restore it where and when you need.
Please report issues at https://github.com/freedev/solr-import-export-json/issues
To execute this console app you need to satisfy few dependency (java 11, git, maven), if you are a java developer probably you already have everything, on the other hand if not if you have Linux execute the following commands:
sudo apt update
sudo apt install git openjdk-11-jdk maven
git clone https://github.com/freedev/solr-import-export-json.git
cd solr-import-export-json
mvn clean package
Now you're ready.
This is the list of command line parameters.
usage: myapp [-a <arg>] [-b <arg>] [-C] [-c <arg>] [-d] [-D] [-f <arg>]
[-F <arg>] [-h] [-i <arg>] [-k <arg>] [-o <arg>] [-p <arg>] [-s
<arg>] [-S <arg>] [-u <arg>] [-x <arg>]
solr-import-export-json
-a,--actionType <arg> action type
[import|export|backup|restore]
-b,--blockSize <arg> block size (default 5000 documents)
-C,--disableCursors disable Solr cursors while reading
-c,--commitDuringImport <arg> Commit progress after specified number of
docs. If not specified, whole work will
be committed.
-d,--deleteAll delete all documents before import
-D,--dryRun dry run test
-f,--filterQuery <arg> filter Query during export
-F,--dateTimeFormat <arg> set custom DateTime format (default
yyyy-MM-dd'T'HH:mm:ss.SSS'Z')
-h,--help help
-i,--includeFields <arg> simple comma separated fields list to be
used during export. if not specified all
the existing fields are used
-k,--uniqueKey <arg> specify unique key for deep paging
-o,--output <arg> output file
-p,--password <arg> basic auth password
-s,--solrUrl <arg> solr url -
http://localhost:8983/solr/collection_nam
e
-S,--skipFields <arg> comma separated fields list to skip
during export/import, this field list
accepts for each field prefix/suffix a
wildcard *. So you can specify skip all
fields starting with name_*
-u,--user <arg> basic auth username
-x,--skipCount <arg> Number of documents to be skipped when
loading from file. Useful when an error
occurs, so loading can continue from last
successful save.
export all documents into a json file
./run.sh -s http://localhost:8983/solr/collection -a export -o /tmp/collection.json
import documents from json
./run.sh -s http://localhost:8983/solr/collection -a import -o /tmp/collection.json
export part of documents, like adding a few fq Solr parameters to the export
./run.sh -s http://localhost:8983/solr/collection -a export -o /tmp/collection.json --filterQuery field1:A --filterQuery field2:B
import documents from json but first delete all documents in the collection
./run.sh -s http://localhost:8983/solr/collection -a import -o /tmp/collection.json --deleteAll
export documents and skip few fields. In the example the will be skipped the fields: field1_a, all the fields starting with field2_ and all the fields ending with _date
./run.sh -s http://localhost:8983/solr/collection -a export -o /tmp/collection.json --skipFields field1_a,field2_*,*_date
Import documents, skip first 49835000 records from file, commit every 200000 documents, block size 5000 (faster than default 500)
./run.sh -s http://localhost:8983/solr/collection -a import -o /tmp/collection.json -x 49835000 -c 200000 -b 5000
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