JDBC V1 Connector Configuration Reference
The JDBC connector fetches documents from a relational database via SQL queries. Under the hood, this connector implements the Solr DataImportHandler (DIH) plugin.
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Deprecation and removal notice
This connector is deprecated as of Fusion 5.3 and is removed or expected to be removed as of Fusion 5.4. Use the JDBC V2 connector instead.
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Observe the date field type in the source database. Delta queries compare a date in the source database to the time of the most recent data import. The user selects a date field from their database to use for comparison (for example, a field like last_updated). The field type changes the behavior of the comparison:
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DATE: It compares the day (for example, 2020-02-20)
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TIMESTAMP: It compares both the day and time (for example, 2020-02-20 17:45:45)
Note: When using a primary key other than id, remove UUIDUpdateProcessorFactory from solrconfig.xml. Also change the uniqueKey value in schema.xml to your primary key.
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When entering configuration values in the UI, use unescaped characters, such as \t for the tab character. When entering configuration values in the API, use escaped characters, such as \\t for the tab character.
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Connector for any JDBC database. This connector requires a JDBC driver to be loaded before creating the datasource.
description - string
Optional description for this datasource.
id - stringrequired
Unique name for this datasource.
>= 1 characters
Match pattern: ^[a-zA-Z0-9_-]+$
pipeline - stringrequired
Name of an existing index pipeline for processing documents.
>= 1 characters
properties - Properties
Datasource configuration properties
clean_in_full_import_mode - boolean
Clean old records when doing a full import. This will remove all records from the index before re-indexing.
Default: true
commit_on_finish - boolean
Set to true for a request to be sent to Solr after the last batch has been fetched to commit the documents to the index.
Default: true
convert_type - boolean
If checked, the connector will automatically convert the data from a column to the target Solr data-type. Otherwise, the connector will use the field type based on the data type of the column from the JDBC result set.
Default: true
db - Connector DB
Type and properties for a ConnectorDB implementation to use with this datasource.
aliases - boolean
Keep track of original URI-s that resolved to the current URI. This negatively impacts performance and size of DB.
Default: false
inlinks - boolean
Keep track of incoming links. This negatively impacts performance and size of DB.
Default: false
inv_aliases - boolean
Keep track of target URI-s that the current URI resolves to. This negatively impacts performance and size of DB.
Default: false
type - string
Fully qualified class name of ConnectorDb implementation.
>= 1 characters
Default: com.lucidworks.connectors.db.impl.MapDbConnectorDb
delta_import_query - string
A SQL statement to retrieve the delta records. If not defined, the original SQL Statement will be used to retrieve delta records, which may be error prone in the case of complex statements. If that occurs, you can define a secondary SQL statement that will only be used for delta imports.
delta_sql_query - string
A SQL statement to select the delta (records added or changed) since the last run of the datasource. For example, 'SELECT id FROM customers WHERE last_modified > $'. The $ indicates the date and time of the last import.
driver - string
The class name of the JDBC driver to use to connect to the database. Only JDBC4 drivers will appear in this list. If a JDBC3 driver has been uploaded but does not appear in the list, it may be possible to manually enter the class name.
fetch_size - integer
The number of documents to retrieve per batch.
initial_mapping - Initial field mapping
Provides mapping of fields before documents are sent to an index pipeline.
condition - string
Define a conditional script that must result in true or false. This can be used to determine if the stage should process or not.
label - string
A unique label for this stage.
<= 255 characters
mappings - array[object]
List of mapping rules
object attributes:{operation : {
display name: Operation
type: string
}source required : {
display name: Source Field
type: string
}target : {
display name: Target Field
type: string
}}
reservedFieldsMappingAllowed - boolean
Default: false
skip - boolean
Set to true to skip this stage.
Default: false
unmapped - Unmapped Fields
If fields do not match any of the field mapping rules, these rules will apply.
operation - string
The type of mapping to perform: move, copy, delete, add, set, or keep.
Default: copy
Allowed values: copymovedeletesetaddkeep
source - string
The name of the field to be mapped.
target - string
The name of the field to be mapped to.
kerberosAuthenticationProps - Kerberos Authentication
Kerberos Authentication Properties
kerberosServerPrincipal - string
Kerberos Server Principal
manually_uploaded_driver - string
If you for whatever reason cannot use the blob store to upload your JDBC driver and needed to load it manually into the connectors apps/libs directory, you can specify the JDBC Driver class name here.
max_docs - integer
The maximum number of documents to crawl. Use -1 to index all documents found.
Default: -1
nested_queries - array[string]
A nested query to join data from multiple tables. The nested query will be used with the SQL Statement and must include the primary key with the $ character. For example, 'SELECT tag FROM tag WHERE document_tag.doc_id=$'.
password - string
The password of the account used for authentication and data access.
primary_key - string
The column name of the primary key for the table.
sql_select_statement - string
A SQL SELECT statement to choose the records to be retrieved.
url - string
A URL to the database, starting with jdbc and vendor name, e.g., 'jdbc:mysql://localhost/test'
>= 1 characters
username - string
The username of a database account used for authentication and data access.
verify_access - boolean
Set to true to require successful connection to the filesystem before saving this datasource.
Default: true