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Beam JIRA Bot commented on BEAM-2457: ------------------------------------- This issue is assigned but has not received an update in 30 days so it has been labeled "stale-assigned". If you are still working on the issue, please give an update and remove the label. If you are no longer working on the issue, please unassign so someone else may work on it. In 7 days the issue will be automatically unassigned. > Error: "Unable to find registrar for hdfs" - need to prevent/improve error > message > ---------------------------------------------------------------------------------- > > Key: BEAM-2457 > URL: https://issues.apache.org/jira/browse/BEAM-2457 > Project: Beam > Issue Type: Improvement > Components: sdk-java-core > Affects Versions: 2.0.0 > Reporter: Stephen Sisk > Assignee: Flavio Fiszman > Priority: P2 > Labels: stale-assigned > > I've noticed a number of user reports where jobs are failing with the error > message "Unable to find registrar for hdfs": > * > https://stackoverflow.com/questions/44497662/apache-beamunable-to-find-registrar-for-hdfs/44508533?noredirect=1#comment76026835_44508533 > * > https://lists.apache.org/thread.html/144c384e54a141646fcbe854226bb3668da091c5dc7fa2d471626e9b@%3Cuser.beam.apache.org%3E > * > https://lists.apache.org/thread.html/e4d5ac744367f9d036a1f776bba31b9c4fe377d8f11a4b530be9f829@%3Cuser.beam.apache.org%3E > > This isn't too many reports, but it is the only time I can recall so many > users reporting the same error message in a such a short amount of time. > We believe the problem is one of two things: > 1) bad uber jar creation > 2) incorrect HDFS configuration > However, it's highly possible this could have some other root cause. > It seems like it'd be useful to: > 1) Follow up with the above reports to see if they've resolved the issue, and > if so what fixed it. There may be another root cause out there. > 2) Improve the error message to include more information about how to resolve > it > 3) See if we can improve detection of the error cases to give more specific > information (specifically, if HDFS is miconfigured, can we detect that > somehow and tell the user exactly that?) > 4) update documentation -- This message was sent by Atlassian Jira (v8.3.4#803005)