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TCP 8032

ProtocolTCP
Port8032
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Synopsis

  • Apache Hadoop YARN uses TCP port 8032 by default for the ResourceManager client RPC endpoint (property: yarn.resourcemanager.address), which clients use to submit applications and query status.
  • This port is active in real-world Hadoop distributions and services, including Apache Hadoop, Cloudera CDH/CDP, Hortonworks HDP, AWS EMR, Azure HDInsight, and Google Cloud Dataproc.
  • While YARN’s web UIs are on other ports (e.g., 8088 for the ResourceManager UI, 8042 for NodeManager), 8032 specifically handles the ResourceManager’s client service traffic.
  • Hadoop/YARN services exposed to the internet have been abused by attackers to run unauthorized workloads (e.g., cryptomining) on misconfigured clusters; restrict access to 8032 and related YARN ports.

Observed activity

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