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  1. Samza
  2. SAMZA-1064

Standalone Samza with Zookeeper for Coordination

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Details

    • New Feature
    • Status: Open
    • Major
    • Resolution: Unresolved
    • None
    • 0.13.0
    • None
    • None

    Description

      In this use-case, we propose using Zookeeper for coordinating processor liveness and task distribution in a Samza job. Additionally, it opens up the possibility of allowing a flexible number of participating processors (no fixed container count).

      Attachments

        1. Samza Standalone-0.pdf
          322 kB
          Navina Ramesh
        2. Samza Standalone-0.md
          30 kB
          Navina Ramesh
        3. image_0.png
          5 kB
          Navina Ramesh
        4. image_1.png
          62 kB
          Navina Ramesh
        5. SamzaStandalone1.pdf
          75 kB
          Boris Shkolnik
        6. SamzaStandalone1.md
          30 kB
          Boris Shkolnik

        Issue Links

          depends upon

          Bug - A problem which impairs or prevents the functions of the product. SAMZA-1203 Use ProcessorId instead of Zk node Id in JobModel generation

          • Blocker - Blocks development and/or testing work, production could not run
          • Resolved

          Bug - A problem which impairs or prevents the functions of the product. SAMZA-1147 ZkJobCoordinator does not honor the interface contract of JobCoordinator

          • Critical - Crashes, loss of data, severe memory leak.
          • Resolved

          Bug - A problem which impairs or prevents the functions of the product. SAMZA-1173 Evaluate CoordinationService design and resolve unresolved questions from PR#91

          • Critical - Crashes, loss of data, severe memory leak.
          • Resolved

          Bug - A problem which impairs or prevents the functions of the product. SAMZA-1150 Handling Error propagation between ZkJobCoordinator & DebounceTimer

          • Major - Major loss of function.
          • Resolved

          Bug - A problem which impairs or prevents the functions of the product. SAMZA-1193 Fix the flaky test TestZkBarrierForVersionUpgrade.testZkBarrierForVersionUpgrade

          • Major - Major loss of function.
          • Resolved

          Bug - A problem which impairs or prevents the functions of the product. SAMZA-1201 Zk path setup for leader elector and barrier should be separated

          • Major - Major loss of function.
          • Resolved

          Bug - A problem which impairs or prevents the functions of the product. SAMZA-1212 Refactor interaction between StreamProcessor, JobCoordinator and SamzaContainer

          • Major - Major loss of function.
          • Resolved

          Bug - A problem which impairs or prevents the functions of the product. SAMZA-1241 ScheduleAfterDebounceTime thread is not shutdown when ZkJobCoordinator shutsdown

          • Major - Major loss of function.
          • Resolved

          Bug - A problem which impairs or prevents the functions of the product. SAMZA-1272 ZkCoordinationUtils deletes the entire Zk tree on reset

          • Major - Major loss of function.
          • Resolved
          is related to

          Sub-task - The sub-task of the issue SAMZA-555 Write a ZK-based samza-standalone JobRunner

          • Major - Major loss of function.
          • Open

          Bug - A problem which impairs or prevents the functions of the product. SAMZA-1279 list of children in onProcessorsChange throws NPE when there an exception in ZK

          • Major - Major loss of function.
          • Resolved

          Bug - A problem which impairs or prevents the functions of the product. SAMZA-1282 Spinning up more containers than the number of tasks kills leader

          • Major - Major loss of function.
          • Resolved

          New Feature - A new feature of the product, which has yet to be developed. SAMZA-1125 Container.shutdown() only stops the runloop

          • Major - Major loss of function.
          • Resolved

          Test - A new unit, integration or system test. SAMZA-1343 Modify the existing failure-testing script for Zookeeper based deployment

          • Major - Major loss of function.
          • Open
          is required by

          New Feature - A new feature of the product, which has yet to be developed. SAMZA-1063 Samza Standalone Project

          • Major - Major loss of function.
          • In Progress
          relates to

          Bug - A problem which impairs or prevents the functions of the product. SAMZA-1344 Add retry in ApplicationRunner for failed StreamProcessors

          • Major - Major loss of function.
          • Open

          Bug - A problem which impairs or prevents the functions of the product. SAMZA-1348 Run stop() in the StreamProcessor in the same thread as other events.

          • Major - Major loss of function.
          • Open

          Bug - A problem which impairs or prevents the functions of the product. SAMZA-1301 Investigate ZKClient exceptions in ZkJobCoordinator.

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Open

          Bug - A problem which impairs or prevents the functions of the product. SAMZA-1382 Support for ZK communication version protocol.

          • Major - Major loss of function.
          • Resolved

          Bug - A problem which impairs or prevents the functions of the product. SAMZA-1302 Improve Zookeeper error handling

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Resolved

          Bug - A problem which impairs or prevents the functions of the product. SAMZA-1304 Improve duplicate processors detection

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Resolved

          Bug - A problem which impairs or prevents the functions of the product. SAMZA-1338 Number of processors greater then number of tasks results in an incorrect behavior.

          • Major - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. SAMZA-1368 make sure that a new job model will be generated if zk barrier times out.

          • Major - Major loss of function.
          • Closed

          New Feature - A new feature of the product, which has yet to be developed. SAMZA-1041 Multi-stage feature for Samza

          • Major - Major loss of function.
          • In Progress

          Improvement - An improvement or enhancement to an existing feature or task. SAMZA-1349 Fix stop() sequence in the StreamProcessor

          • Major - Major loss of function.
          • Open

          Improvement - An improvement or enhancement to an existing feature or task. SAMZA-1303 Request for waitForFinish(time, TimeUnit) api in LocalApplicationRunner

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Closed
          requires

          Bug - A problem which impairs or prevents the functions of the product. SAMZA-1084 User thread does not see errors from the processor thread when using the StreamProcessor API

          • Major - Major loss of function.
          • Resolved
          links to

          Web Link GitHub Pull Request #64

          Web Link GitHub Pull Request #180

          1.
          		 Implement Leader Election using ZK Sub-task Resolved Navina Ramesh
          2.
          		 Implement Simple grouper by container, with support for arbitrary container ids Sub-task Resolved Boris Shkolnik
          3.
          		 Implement debounce scheduler Sub-task Resolved Boris Shkolnik
          4.
          		 ZkController for communication with the ZK Sub-task Resolved Boris Shkolnik
          5.
          		 Barrier for job model update Sub-task Resolved Boris Shkolnik
          6.
          		 Create test utils for Zk based Standalone testing Sub-task Resolved Boris Shkolnik
          7.
          		 add utils for publishing job model and job model version. Sub-task Resolved Boris Shkolnik
          8.
          		 Implement startup and shutdown sequence of jobs in ZK environment Sub-task Open Navina Ramesh
          9.
          		 create ZK based JobCoordinator Sub-task Resolved Boris Shkolnik
          10.
          		 add a time out for ZkVersionUpgradeBarrier Sub-task Resolved Boris Shkolnik
          11.
          		 Semantics of ProcessorId in Samza Sub-task Resolved Navina Ramesh
          12.
          		 verify that SamzaContainerController.stop shuts down the container completely. Sub-task Resolved Navina Ramesh
          13.
          		 simplify ZK barrier for version upgrade. Sub-task Resolved Boris Shkolnik
          14.
          		 create ZkCoordination service Sub-task Resolved Boris Shkolnik
          15.
          		 List integration tests needed for the StandAlone project Sub-task Resolved Boris Shkolnik
          16.
          		 Metrics should be added for ZK based JobCoordinator Sub-task In Progress Navina Ramesh
          17.
          		 Review tryBecomeLeader implementation to see if it can be simplified. Sub-task Open Unassigned
          18.
          		 ZK cleanup Sub-task Closed Boris Shkolnik
          19.
          		 Locality should be used in standalone execution (host-affinity) Sub-task Open Navina Ramesh
          20.
          		 Fix ZK path issues + container IDs generation. Sub-task Resolved Boris Shkolnik
          21.
          		 ZkController should close zk connection on stop() Sub-task Resolved Boris Shkolnik
          22.
          		 add new StandAlone configs to the configuration doc Sub-task Closed Boris Shkolnik
          23.
          		 if ZkConnect string contains extra path, it needs to be created on the ZK. Sub-task Closed Boris Shkolnik
          24.
          		 update samza configs with StandAlone tutorial link, when it is available. Sub-task Resolved Boris Shkolnik
          25.
          		 HappyPathTesting. Single and multiple processors happy path. Sub-task Resolved Boris Shkolnik
          26.
          		 HappyPath Testing. Rolling Upgrades. Sub-task Open Shanthoosh Venkataraman
          27.
          		 Error Testing. ZkUnavailable. Sub-task Resolved Boris Shkolnik
          28.
          		 Error Testing. Failing processor. Sub-task Resolved Boris Shkolnik
          29.
          		 Failure Testing. A processor dies while waiting for a barrier to complete. Sub-task Open Shanthoosh Venkataraman
          30.
          		 add a config for de-bounce time. Sub-task Resolved Boris Shkolnik
          31.
          		 If LocalAppRunner is used - use ZkJobCoordinator by default. Sub-task Resolved Unassigned
          32.
          		 HappyPath Testing. Using local storage. Sub-task Open Unassigned
          33.
          		 renam StandaloneJobCoordinator to PassthroughJobCoordinator Sub-task Resolved Boris Shkolnik
          34.
          		 Stand alone integration tests. Sub-task Resolved Shanthoosh Venkataraman
          35.
          		 HappyPathTesting. Verify JM generated only once for multiple added SP Sub-task Open Shanthoosh Venkataraman
          36.
          		 ERror Testing. If all processor die, LAR should shutdown. Sub-task Open Shanthoosh Venkataraman
          37.
          		 session expiration propagation Sub-task Resolved Boris Shkolnik
          38.
          		 LocalApplicationRunner needs to support StreamTask Sub-task Resolved Boris Shkolnik

          Activity

            People

              navina Navina Ramesh
              navina Navina Ramesh
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              Dates

                Created:
                Updated: