User cannot log into Listener.Make sure corporate LDAP group settings are correct and the user is a member of a configured LDAP group.
Browser complains about insecure SSL/TLS certificate.Make sure the Listener-installed SSL/TLS certificate is issued by a trusted certificate provider, not self-signed or expired.
Administrator cannot log into Administration.Only the super-user administrator can access Listener Administration settings. User-level administrators do not have this privilege.
Unable to add LDAP settings.Make sure the username and password are valid. Listener requires original credentials to verify settings.
Cannot find location to add new users to Listener.Users are automatically added to Listener the first time they log in. User restriction occurs at the LDAP group level.


A deleted item still appears in API.To allow for Elasticsearch index refreshing, wait at least one second after deletion to confirm the item is deleted.

Data Ingestion

Ingest API returns the 201 status code, but data does not appear to be landing.Send a test packet with Header Sync=1 and see if UUID is returned with the 201 status code.
When writing to Teradata, data is not inserted and the following error message appears: Bad parameter type, could not bind.Make sure Teradata column data type is varchar, json, or clob. Currently, these are the only supported data types for Teradata.
When writing to Aster, data is not inserted and the following error message appears: Bad parameter type, could not bind.Make sure Aster data column data type is varchar or text. Currently, these are the only supported data types for Aster.
When using /messages endpoint and sending an array of JSON docs, target table has a single character as each message/record.This occurs when the JSON array is invalid. Make sure the JSON array is valid.
When using /messages endpoint, when an array of JSON docs are sent, target table has single char as each message/record.Check if the JSON array is valid. This happens when Ingest services finds the JSON array invalid.


Messages are not getting to the source.Make sure the topic is valid.
State of the source indicates a bad broker.Check for network blocks from MQTT to Listener.


To configure the auto-scaling paradigm for Ingest micro-service, an administrator sets the maximum number of micro-service replicas via API or UI. The minimum cannot be changed.

The users on your system are getting frequent responses of 502, 503, or 504; or they are unable to ingest data. As an administrator, identify if additional Ingest micro-services are needed by comparing the ones currently running versus the maximum available to autoscaler. For API ("current_replicas" and "max_replicas") instructions, see Get Autoscaling Details. For UI instructions, see Resource Manager.
Autoscaler needs additional ingest services.As an administrator, update auto-scaling after identifying the need for addition ingest micro-services. For API instructions, see Update Autoscaling. For UI instructions, see Managing Autoscaler Limits.


Dashboard is empty after user created sources.Star sources to see them on the dashboard.
The following error message appears: {"title":"Could not save this source","content":"Data validation error: Owner attribute is required"}.Log out and back into Listener.


User does not have access to add a target system (Teradata, Aster, HDFS, or HBase).Make sure the user has administrator privileges. Only administrators are allowed to add systems to Listener, which non-administrator users can then select to create targets.
Administrator cannot add or verify an HDFS system.Make sure the URL/IP is prefaced by hdfs:// and ends with the :port-number.
Administrator cannot validate and save a new system.Turn off autofill in the browser.


Data is not inserted into the target system.Make sure the user credentials supplied have proper privileges to access and insert data on the target system.
Cannot retrieve column data from Teradata after checking valid target credentials.Make sure the user has proper privileges for getColumnPrivileges and getColumn on the Teradata system:
Select access on DBC.Tables[V][X]
Select access on DBC.Columns[V][X]
Select access on DBC.AllRights[V][X]
Select access on DBC.UDTInfo
Target is stuck in deploy mode.Make sure there are enough resources to deploy a new target.
Administrator cannot add a target from Manage Targets.Make sure at least one source exists in Listener and the source is selected in the target form.
Connection to a websocket target fails and the following message appears: 503 Service Unavailable.Reattempt the websocket connection until it makes a successful connection.


When transactions, such as insert or delete, are run on a Teradata table by anyone other than Listener, writer errors out because of deadlock. User cannot find any new data in the target table.If you want to modify data while Listener is writing, use partition tables instead of regular tables.
Insert query fails because of data type mismatch, and the following error message appears in the Manage Targets view under the target name: Target error.Click VIEW ERROR DETAILS under the target error message for more information.
Target was created successfully, but the data is not being written to the target table.Check the target status on UI. If Target is writing data in near realtime/batches, the writer was deployed successfully.
Writer errors out because of deadlock when transactions, like insert or delete, are performed on Teradata table by anyone other than Listener. Use partition tables instead of regular table to modify data while Listener is writing.

User Interface

Unable to add LDAP settings.Make sure the username and password are valid. Listener requires original credentials to verify the entered settings.

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