SAP Load Balanced JCo Account

In this article

Overview

You can use this account type to connect SAP Snaps with data sources that use the SAP Load Balanced JCo account. The SAP Load Balanced JCo Account is used to connect to a message server (MSHOST - Message Server Host). Learn more about SAP Configuration.

Prerequisites

None

Known Issue

In version 4.28 (main14627), the SAP Snap Pack's bundled JCo library was upgraded to 3.1.4. Prior to that, version 3.0.6 was used.

In version 3.0.21 of SAP:

  • The default login behavior of the JCo library changed. 

  • The default value of property jco.client.snc_sso was changed from 0 to 1 (enabled).

The above changes will impact your pipelines if you use a username/password for RFC login. Login would work with the SAP Snap Pack versions before 4.28 but will fail with versions 4.28 or later.

The following workarounds can help mitigate the issues:

  • Add the jco.client.snc_sso JCo property with a value of 0 (disabled). If the account still fails with a "Name or password is incorrect (repeat logon)" error, even after adding this property, then reach out to the SAP team to enable the option "Permit Password Logon SAP GUI" for that specific user.

  • Select the Permit Password Logon for SAP GUI (User-Specific) checkbox.

The permit password option is effective only if the profile parameter snc/accept_insecure_gui is set to U. (Unsecure login is permitted for specific users).

Account Settings

sap-load-balanced-jco-account.png

 

  • Asterisk (*): Indicates a mandatory field.

  • Suggestion icon (): Indicates a list that is dynamically populated based on the configuration.

  • Expression icon ( ): Indicates whether the value is an expression (if enabled) or a static value (if disabled). Learn more about Using Expressions in SnapLogic.

  • Add icon ( ): Indicates that you can add fields in the fieldset.

  • Remove icon ( ): Indicates that you can remove fields from the fieldset

 

Field Name

Field Type

Description

Label*

Default Value: None
Example: SAP Load Balanced JCo Account

String

Specify a unique and meaningful label for the account instance

Username*

Default Value: N/A
Example: Admin

String

Specify the SAP username for the account.

For SAP SNC authentication, Username is not required for authentication through SAP SNC.

Password

Default Value: N/A
Example: p@s*w&8k!#l98

String

Specify a password for the username.

Language*

Default Value: N/A
Example: EN

String

Specify the SAP language code.

Client*

Default Value: N/A
Example: 800

String

Specify the SAP client to use corresponding to jco.client.

Message server*

Default Value: N/A
Example: saptest.mycloud.com

String

Specify the SAP message server address corresponding to jco.client.mshost.

System ID*

Default Value: N/A
Example: EH4

String

Specify the SAP system ID of the SAP system corresponding to the jco.client.r3name.

Logon group

Default Value: N/A
Example: SLTEST

String

Specify the SAP logon group of the load balanced connections which is identifying a set of SAP application servers corresponding to jco.client.group.

Peak limit*

Default Value: N/A
Example: 5

 

Integer

Specify the maximum number of active connections that you can create simultaneously for a destination.

Connection pool capacity*

Default Value: N/A
Example: 1

Integer

Specify the maximum number of idle connections to be kept open by the destination. No connection pooling takes place when the value is 0.

Router string


Default Value: N/A
Example: /H/saprouter.hostname/S/1244/H/hostname/S/7244

String

Specify the SAP Router string required for making connections to systems that are behind the SAP Router. An SAP router string contains a chain of SAP routers with their port numbers and has the form (/H/<host>[/S/<port>][/W/<password, if provided>])+.

For more information on router strings, see Router Strings in SAP Help.

Enable trace

Default Value: Deselected

Checkbox

Activates the JCo traces to get more information that can help analyze the connection-related errors.

Reload Metadata on Validate

Default Value: Deselected

Checkbox

Select this checkbox to clear the JCo Metadata cache on the Snaplex node before validating the account.

Advanced JCo properties

 

 

This field set enables you to specify JCo parameters and respective values for SAP Secure Network Communications (SNC) authentication. Only one JCo parameter can be specified in each row. 

Property name

Default value: None
Example: jco.client.user, jco.client.passwd, jco.client.cert1

String/Expression/Suggestion

Specify the name of the JCo parameter to be passed for SAP SNC authentication. Alternatively, select the parameter from the Suggestions drop-down list.

 

Property value

Default value: None
Example: johndoe, pass*word#4

Integer/Expression

Specify the value for the JCo parameter needed for SAP SNC authentication. If you have the JCo parameters defined at a Pipeline-level, pass the Pipeline parameter names as expressions.

 

Troubleshooting

Error

Reason

Resolution

Error

Reason

Resolution

Pipeline failed to prepare.

SnapCcException: Not starting pipeline as pipeline has prepare error. "{57df90cf-a994-43ab-8caa-91b24d3e2300

Dependent native library not found or could not be resolved.

Could not initialize the account <account-name>.

  1. Copy the updated native library:

    • For Linux, copy the updated native library libsapjco3.so file to the /opt/snaplogic/ldlib folder on every node in the Snaplex.

    • For Windows, copy the updated native library sapjco3.dllfile to the C:\opt\Snaplogic\ldlib folder on every node in the Snaplex.
      Note: For Snaplexes with multiple nodes, make sure to install the library on every node.

  2. Restart all the nodes in the Snaplex.

Could not initialize account.

[com-snaplogic-snaps-sap-jcoaccount_2-438rc27664]:

Native library sapjco3 is an older version. The library found/opt/snaplogic/ldlib/libsapjco3.so has version "753.811", but the required version is at least 753.1324.

Ensure that the required native library is installed on each node of the snaplex.

Snap Pack History

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