Striim Cloud 4.1.2 documentation

CDDL Action

enum

Process

See Handling schema evolution.

Connection Retry Policy

String

initialRetryDelay=10s, retryDelayMultiplier=2, maxRetryDelay=1m, maxAttempts=5, totalTimeout=10m

Do not change unless instructed to by Striim support.

Connection URL

String

Provide the JDBC URL from the JDBC/ODBC tab of the Databricks cluster's Advanced options (see Get connection details for a cluster). If the URL starts with jdbc:spark:// change that to jdbc:databricks:// (this is required by the upgraded driver bundled with Striim).

External Stage Type

enum

DBFSROOT

With the default value (not recommended), events are staged to DBFS storage at the path specified in Stage Location. To use an external stage, your Databricks instance should be using Databricks Runtime 11.0 or later.

If running Databricks on AWS, set to S3 and set the S3 properties as detailed below.

If running Azure Databricks, set to ADLSGen2 and set the ADLS properties as detailed below.

Hostname

String

the Server Hostname from the JDBC/ODBC tab of the Databricks cluster's Advanced options (see Get connection details for a cluster)

Ignorable Exception Code

String

Set to TABLE_NOT_FOUND to prevent the application from terminating when Striim tries to write to a table that does not exist in the target. See Handling "table not found" errors for more information.

Ignored exceptions will be written to the application's exception store (see CREATE EXCEPTIONSTORE).

Mode

enum

AppendOnly

With the default value AppendOnly:

Set to Merge to handle updates and deletes as updates and deletes instead. In Merge mode:

Optimized Merge

Boolean

false

In Flow Designer, this property will be displayed only when Mode is Merge.

Set to True only when Mode is MERGE and the target's input stream is the output of an HP NonStop reader, MySQL Reader, or Oracle Reader source and the source events will include partial records. For example, with Oracle Reader, when supplemental logging has not been enabled for all columns, partial records are sent for updates. When the source events will always include full records, leave this set to false.

Parallel Threads

Integer

Not supported when Mode is Merge.

See Creating multiple writer instances.

Personal Access Token

encrypted password

Used to authenticate with the Databricks cluster (see Generate a personal access token). The user associated with the token must have read and write access to DBFS (see Important information about DBFS permissions). If table access control has been enabled, the user must also have MODIFY and READ_METADATA (see Data object privileges - Data governance model).

Stage Location

String

/

When the External Stage Type is DBFSROOT, the path to the staging area in DBFS, for example, /StriimStage/.

Tables

String

The name(s) of the table(s) to write to. The table(s) must exist in the database.

If not using Databricks' Unity Catalog, specify target table names in uppercase as <DATABASE>.<TABLE>. If using Unity Catalog, specify in uppercase as <CATALOG>.<DATABASE>.<TABLE>.

When the target's input stream is a user-defined event, specify a single table.

The only special character allowed in target table names is underscore (_).

When the input stream of the writer is the output of a DatabaseReader, IncrementalBatchReader, or SQL CDC source it can write to multiple tables. In this case, specify the names of both the source and target tables. You may use the % wildcard for the table names, but not for the schema or database. If the reader uses three-part names, you must use them here as well. SQL Server source table names must be specified in three parts when the source is Database Reader or Incremental Batch Reader (database.schema.%,database.%), but in two parts when the source is MS SQL Reader or MS Jet (schema.%,database.%). Examples:

source.emp,target_database.emp
source_schema.%,target_catalog.target_database.%
source_database.source_schema.%,target_database.%
source_database.source_schema.%,target_catalog.target_database.%

MySQL and Oracle names are case-sensitive, SQL Server names are not. Specify names as <schema name>.<table name> for MySQL and Oracle and as <database name>.<schema name>.<table name> for SQL Server.

See Mapping columns for additional options.

Upload Policy

String

eventcount:10000, interval:60s

The upload policy may include eventcount and/or interval (see Setting output names and rollover / upload policies for syntax). Buffered data is written to the storage account every time any of the specified values is exceeded. With the default value, data will be written every 60 seconds or sooner if the buffer contains 10,000 events. When the app is quiesced, any data remaining in the buffer is written to the storage account; when the app is undeployed, any data remaining in the buffer is discarded.

java.lang.Byte

binary

java.lang.Double

double

java.lang.Float

float

java.lang.Integer

int

java.lang.Long

bigint

java.lang.Short

smallint

java.lang.String

string

org.joda.time.DateTime

timestamp