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TCP 8033

ProtocolTCP
Port8033
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Synopsis

  • Apache Hadoop YARN uses TCP port 8033 by default for the ResourceManager admin RPC endpoint (yarn.resourcemanager.admin.address).
  • This default is present in common Hadoop distributions such as Apache Hadoop, Cloudera CDH/CDP, Hortonworks HDP (Ambari-managed), and MapR.
  • Cloud-managed Hadoop offerings—including Amazon EMR, Google Cloud Dataproc, and Azure HDInsight—inherit the same YARN defaults and typically bind 8033 internally for ResourceManager administration unless reconfigured.
  • The traffic on 8033 is Hadoop IPC/RPC (not HTTP) used for administrative operations against the ResourceManager.
  • No widely documented hacking-specific association is known for TCP 8033.

Observed activity

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