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Andrey Zagrebin commented on FLINK-15007: ----------------------------------------- Thanks for the explanation [~xintongsong], makes sense to me. [~aljoscha] I think we can close this issue if you agree > Flink on YARN does not request required TaskExecutors in some cases > ------------------------------------------------------------------- > > Key: FLINK-15007 > URL: https://issues.apache.org/jira/browse/FLINK-15007 > Project: Flink > Issue Type: Bug > Components: Runtime / Coordination, Runtime / Task > Affects Versions: 1.10.0 > Reporter: Aljoscha Krettek > Priority: Blocker > Fix For: 1.10.0 > > Attachments: DualInputWordCount.jar > > > This was discovered while debugging FLINK-14834. In some cases Flink does not > request new {{TaskExecutors}} even though new slots are requested. You can > see this in some of the logs attached to FLINK-14834. > You can reproduce this using > [https://github.com/aljoscha/docker-hadoop-cluster] to bring up a YARN > cluster and then running a compiled Flink in there. > When you run > {code:java} > bin/flink run -m yarn-cluster -p 3 -yjm 1200 -ytm 1200 > /root/DualInputWordCount.jar --input hdfs:///wc-in-1 --output hdfs:///wc-out > && hdfs dfs -rm -r /wc-out > {code} > the job waits and eventually fails because it does not have enough slots. > (You can see in the log that 3 new slots are requested but only 2 > {{TaskExecutors}} are requested. > When you run > {code:java} > bin/flink run -m yarn-cluster -p 3 -yjm 1224 -ytm 1224 > /root/DualInputWordCount.jar --input hdfs:///wc-in-1 --output hdfs:///wc-out > && hdfs dfs -rm -r /wc-out > {code} > runs successfully. > This is the {{git bisect}} log that identifies the first faulty commit > ([https://github.com/apache/flink/commit/9fed0ddc5bc015f98246a2d8d9adbe5fb2b91ba4|https://github.com/apache/flink/commit/9fed0ddc5bc015f98246a2d8d9adbe5fb2b91ba4]): > {code:java} > git bisect start > # good: [09f2f43a1d73c76bf4d3f4a1205269eb860deb14] [FLINK-14154][ml] Add the > class for multivariate Gaussian Distribution. > git bisect good 09f2f43a1d73c76bf4d3f4a1205269eb860deb14 > # bad: [85905f80e9711967711c2992612dccdd2cc211ac] [FLINK-14834][tests] > Disable flaky yarn_kerberos_docker (default input) test > git bisect bad 85905f80e9711967711c2992612dccdd2cc211ac > # good: [c9c8a29b1b2e4f2886fba1524432f9788b564e61] > [FLINK-14759][coordination] Remove unused class TaskManagerCliOptions > git bisect good c9c8a29b1b2e4f2886fba1524432f9788b564e61 > # good: [c9c8a29b1b2e4f2886fba1524432f9788b564e61] > [FLINK-14759][coordination] Remove unused class TaskManagerCliOptions > git bisect good c9c8a29b1b2e4f2886fba1524432f9788b564e61 > # bad: [ae539c97c858b94e0e2504b54a8517ac1383482a] [hotfix][runtime] Check > managed memory fraction range when setting it into StreamConfig > git bisect bad ae539c97c858b94e0e2504b54a8517ac1383482a > # good: [01d6972ab267807b8afccb09a45c454fa76d6c4b] [hotfix] Refactor out > slots creation from the TaskSlotTable constructor > git bisect good 01d6972ab267807b8afccb09a45c454fa76d6c4b > # bad: [d32e1d00854e24bc4bb3aad6d866c2d709acd993] [FLINK-14594][core] Change > Resource to use BigDecimal as its value > git bisect bad d32e1d00854e24bc4bb3aad6d866c2d709acd993 > # bad: [25f87ec208a642283e995811d809632129ca289a] > [FLINK-11935][table-planner] Fix cast timestamp/date to string to avoid > Gregorian cutover > git bisect bad 25f87ec208a642283e995811d809632129ca289a > # bad: [21c6b85a6f5991aabcbcd41fedc860d662d478fb] [FLINK-14842][table] add > logging for loaded modules and functions > git bisect bad 21c6b85a6f5991aabcbcd41fedc860d662d478fb > # bad: [48986aa0b89de731d1b9136b59d409933cc15408] [hotfix] Remove unnecessary > comments about memory size calculation before network init > git bisect bad 48986aa0b89de731d1b9136b59d409933cc15408 > # bad: [4c4652efa43ed8ab456f5f63c89b57d8c4a621f8] [hotfix] Remove unused > number of slots in MemoryManager > git bisect bad 4c4652efa43ed8ab456f5f63c89b57d8c4a621f8 > # bad: [9fed0ddc5bc015f98246a2d8d9adbe5fb2b91ba4] [FLINK-14400] Shrink the > scope of MemoryManager from TaskExecutor to slot > git bisect bad 9fed0ddc5bc015f98246a2d8d9adbe5fb2b91ba4 > # first bad commit: [9fed0ddc5bc015f98246a2d8d9adbe5fb2b91ba4] [FLINK-14400] > Shrink the scope of MemoryManager from TaskExecutor to slot > {code} -- This message was sent by Atlassian Jira (v8.3.4#803005)