Daryn Sharp created HADOOP-10099: ------------------------------------ Summary: Reduce chance for RPC denial of service Key: HADOOP-10099 URL: https://issues.apache.org/jira/browse/HADOOP-10099 Project: Hadoop Common Issue Type: Improvement Components: ipc Affects Versions: 2.0.0-alpha, 3.0.0 Reporter: Daryn Sharp Priority: Minor
A RPC server may accept an unlimited number of connections unless indirectly bounded by a blocking operation in the RPC handler threads. The NN's namespace locking happens to cause this blocking, but other RPC servers such as yarn's generate async events which allow unbridled connection acceptance. -- This message was sent by Atlassian JIRA (v6.1#6144)