Xiaoqiao He created HDFS-15723:
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Summary: RBF: invokeConcurrent may run unexpected when enable
standby read
Key: HDFS-15723
URL: https://issues.apache.org/jira/browse/HDFS-15723
Project: Hadoop HDFS
Issue Type: Sub-task
Components: rbf
Reporter: Xiaoqiao He
My colleague report that the following code segment has wrong parameter passed
when create RemoteLocation instance.
{code:java}
if (standby) {
// Call the objectGetter to all NNs (including standby)
for (final FederationNamenodeContext nn : namenodes) {
String nnId = nn.getNamenodeId();
final List<FederationNamenodeContext> nnList =
Collections.singletonList(nn);
T nnLocation = location;
if (location instanceof RemoteLocation) {
nnLocation = (T)new RemoteLocation(nsId, nnId, location.getDest());
<-- wrong parameter passed.
}
orderedLocations.add(nnLocation);
callables.add(
() -> {
transferThreadLocalContext(originCall, originContext);
return invokeMethod(ugi, nnList, proto, m, paramList);
});
}
}
{code}
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