I've written a Flink job to stream updates to S3 using StreamingFileSink. I used the presto plugin for checkpointing and the hadoop plugin for writing part files to S3. I was going through my application logs and found these messages which I couldn't understand and would like to know if there's some step I might have missed.
Even if these messages are harmless, I would like to understand what these mean. 2020-05-19 19:23:33,277 INFO org.apache.flink.fs.shaded.hadoop3.org.apache.commons.beanutils.FluentPropertyBeanIntrospector - Error when creating PropertyDescriptor for public final void org.apache.flink.fs.shaded.hadoop3.org.apache.commons.configuration2.AbstractConfiguration.setProperty(java.lang.String,java.lang.Object)! Ignoring this property. *2020-05-19 19:23:33,310 WARN org.apache.flink.fs.shaded.hadoop3.org.apache.hadoop.metrics2.impl.MetricsConfig - Cannot locate configuration: tried hadoop-metrics2-s3a-file-system.properties,hadoop-metrics2.properties* 2020-05-19 19:23:33,397 INFO org.apache.flink.fs.shaded.hadoop3.org.apache.hadoop.metrics2.impl.MetricsSystemImpl - Scheduled Metric snapshot period at 10 second(s). 2020-05-19 19:23:33,397 INFO org.apache.flink.fs.shaded.hadoop3.org.apache.hadoop.metrics2.impl.MetricsSystemImpl - s3a-file-system metrics system started 2020-05-19 19:23:34,833 INFO org.apache.flink.fs.shaded.hadoop3.org.apache.hadoop.conf.Configuration.deprecation - fs.s3a.server-side-encryption-key is deprecated. Instead, use fs.s3a.server-side-encryption.key -- Sent from: http://apache-flink-mailing-list-archive.1008284.n3.nabble.com/
