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Billie Rinaldi commented on HDFS-8213: -------------------------------------- As documented, each process must configure its own span receivers if it wants to use tracing. If I set hadoop.htrace.span.receiver.classes to the empty string, then the NameNode and DataNode will not do any tracing. > DFSClient should not instantiate SpanReceiverHost > ------------------------------------------------- > > Key: HDFS-8213 > URL: https://issues.apache.org/jira/browse/HDFS-8213 > Project: Hadoop HDFS > Issue Type: Bug > Affects Versions: 2.7.0 > Reporter: Billie Rinaldi > Priority: Critical > > DFSClient initializing SpanReceivers is a problem for Accumulo, which manages > SpanReceivers through its own configuration. This results in the same > receivers being registered multiple times and spans being delivered more than > once. The documentation says SpanReceiverHost.getInstance should be issued > once per process, so there is no expectation that DFSClient should do this. -- This message was sent by Atlassian JIRA (v6.3.4#6332)