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https://issues.apache.org/jira/browse/HDFS-9749?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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James Clampffer updated HDFS-9749:
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Attachment: HDFS-9749.HDFS-8707.000.patch
> libhdfs++: RPC engine will attempt to close an asio socket before it's been
> opened
> ----------------------------------------------------------------------------------
>
> Key: HDFS-9749
> URL: https://issues.apache.org/jira/browse/HDFS-9749
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: hdfs-client
> Reporter: James Clampffer
> Assignee: James Clampffer
> Attachments: HDFS-9749.HDFS-8707.000.patch, cancel_backtrace.txt
>
>
> Libhdfs++ can work itself into a state where it needs to shutdown, in this
> case due to config issues, and during deconstruction attempts to call
> shutdown() and close() on an asio::tcp::socket that was never opened. This
> causes asio to throw a std::system_error which ends up terminating the
> process. See attached stack for details.
> The fix is just to make sure the rpc_connection is actually connected before
> attempting to close it.
> {code}
> - next_layer_.cancel();
> - next_layer_.close();
> + if(connected_) {
> + next_layer_.cancel();
> + next_layer_.close();
> + }
> connected_ = false;
> {code}
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