Authentication Fails When Spark Connects to Other Services
Symptom
- When Spark connects to HBase, an authentication failure message is displayed or the HBase table cannot be connected.
- When Spark connects to HBase, a message is displayed indicating that the JAR package cannot be found.
Cause Analysis
- Symptom 1: HBase does not obtain the authentication information of the current task. As a result, the authentication fails when HBase is connected, and the corresponding data cannot be read.
- Symptom 2: By default, Spark does not load the HBase JAR package. You need to use --jars to add the JAR package to the task.
Procedure
- Symptom 1: Enable the HBase authentication function by running the spark.yarn.security.credentials.hbase.enabled=true command. However, do not replace hbase-site.xml on the Spark client with hbase-site.xml on the HBase client because they are not completely consistent.
- Symptom 2: Use --jars to upload the HBase JAR package.
Parent topic: Using Spark
- Symptom
- Cause Analysis
- Procedure