James Clampffer created HDFS-11294:
--------------------------------------
Summary: libhdfs++: Segfault in HA failover if DNS lookup for both
Namenodes fails
Key: HDFS-11294
URL: https://issues.apache.org/jira/browse/HDFS-11294
Project: Hadoop HDFS
Issue Type: Sub-task
Reporter: James Clampffer
Assignee: James Clampffer
Hit while doing more manual testing on HDFS-11028.
The HANamenodeTracker takes an asio endpoint to figure out what endpoint on the
other node to try next during a failover. This is done by passing the element
at index 0 from endpoints (a std::vector<asio endpoint>).
When DNS fails the endpoints vector for that node will be empty so the iterator
returned by endpoints\[0\] is just a null pointer that gets dereferenced and
causes a segfault.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
