This topic provides a list of all the logs generated by a BDD deployment.
The list also includes a summary of where to find logs for each BDD component and tells you how to access logs.
List of BDD logs
| Log | Purpose | Default Location |
|---|---|---|
| WebLogic Admin Server domain log | Provides a status of the WebLogic domain for the Big Data Discovery deployment. See Dgraph Gateway logs. | $BDD_DOMAIN/servers/AdminServer/logs/bdd_domain.log |
| WebLogic Admin Server server log | Contains messages from the WebLogic Admin Server subsystems. For both server logs, see Dgraph Gateway logs. | $BDD_DOMAIN/servers/AdminServer/logs/AdminServer.log |
| WebLogic Managed Server server log | Contains messages from the WebLogic Managed Server subsystems and applications. | $BDD_DOMAIN/servers/<serverName>/logs/<serverName>.log |
| Dgraph Gateway application log | WebLogic log for the Dgraph Gateway application. See Dgraph Gateway log entry format | $BDD_DOMAIN/servers/<serverName>/logs/<serverNamem>-diagnostic.log |
| Dgraph stdout/stderr log | Contains Dgraph operational messages, including startup messages. See Dgraph out log. | $BDD_HOME/logs/dgraph.out |
| Dgraph request log | Contains entries for Dgraph requests. See Dgraph request log. | $BDD_HOME/dgraph/bin/dgraph.reqlog |
| Dgraph tracing ebb logs | Dgraph Tracing Utility files, which are especially useful for Dgraph crashes. | $BDD_HOME/dgraph/bin/dgraph-<serverName>-*.ebb |
| Dgraph HDFS Agent stdout/stderr log | Contains startup messages, as well as messages from operations performed by the Dgraph HDFS Agent (such as ingest operations). See the Data Processing Guide. | $BDD_HOME/logs/dgraphHDFSAgent.out |
| FUSE stdout/stderr log | Contains FUSE operational messages. See FUSE out log. | $BDD_HOME/logs/hdfs_fuse_client.out |
| Studio application log in Log4j format | Studio application log (in Log4j format). For both Studio application logs, see About the main Studio log file. | $BDD_DOMAIN/servers/<serverName>/logs/bdd-studio.log |
| Studio application log in ODL format | Studio application log (in ODL format). | $BDD_DOMAIN/servers/<serverName>/logs/bdd-studio-odl.log |
| Studio metrics log in Log4j format | Studio metrics log (in Log4j format). For both Studio metrics logs, see About the metrics log file. | $BDD_DOMAIN/servers/<serverName>/logs/bdd-studio-metrics.log |
| Studio metrics log in ODL format | Studio metrics log (in ODL format). | $BDD_DOMAIN/servers/<serverName>/logs/bdd-studio-metrics-odl.log |
| Studio client log in Log4j format | Studio client log (in Log4j format). For both Studio client logs, see About the Studio client log file. | $BDD_DOMAIN/servers/<serverName>/logs/bdd-studio-client.log |
| Studio client log in ODL format | Studio client log (in ODL format). | $BDD_DOMAIN/servers/<serverName>/logs/bdd-studio-client-odl.log |
| Data Processing logs | Contains messages resulting from Data Processing workflows. See the Data Processing Guide. | $BDD_HOME/logs/edp/edp_*.log |
| Transform Service logs | Contains messages from transformation operations. See the Data Processing Guide. | $BDD_HOME/logs/transformservice/<data>.stderrout.log |
| CDH logs (YARN, Spark worker, and ZooKeeper logs) | YARN logs from CDH processes that ran Data Processing workflows, as listed in the Data Processing Guide. See the Cloudera and Hortonworks documentation for information on the ZooKeeper logs. | Available from the Cloudera Manager Web UI for the component. |
Where to find logging information for each component
| Big Data Discovery Component name | Where to find logging information? |
|---|---|
| Studio | See Studio Logging. |
| Data Processing | Data Processing is a component of BDD that runs on CDH nodes in the BDD deployment. For Data Processing logs, see the Data Processing Guide. |
| Dgraph Gateway (and WebLogic Server logs) | See Dgraph Gateway Logging. |
| Dgraph | See Dgraph Logging. |
| Dgraph HDFS Agent | The Dgraph HDFS Agent is responsible for importing and exporting Dgraph data to HDFS. For HDFS Agent logs, see the Data Processing Guide. |