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Posted to notifications@accumulo.apache.org by GitBox <gi...@apache.org> on 2021/05/27 15:21:30 UTC

[GitHub] [accumulo] milleruntime opened a new issue #2121: NoSuchMethodException using HostRegexTableLoadBalancer

milleruntime opened a new issue #2121:
URL: https://github.com/apache/accumulo/issues/2121


   The runtime class loading of the `HostRegexTableLoadBalancer` is broken. It is likely this happened when it was refactored during the move to SPI. This exception can be seen in the manager log when running `SuspendedTabletsIT`, which seems to timeout often for me locally but the test can still pass even with this exception.
   <pre>
   2021-05-27T10:39:11,473 [balancer.TableLoadBalancer] WARN : Failed to load table balancer class org.apache.accumulo.core.spi.balancer.HostRegexTableLoadBalancer for table !0
   java.lang.NoSuchMethodException: org.apache.accumulo.core.spi.balancer.HostRegexTableLoadBalancer.<init>(org.apache.accumulo.core.data.TableId)
           at java.lang.Class.getConstructor0(Class.java:3349) ~[?:?]
           at java.lang.Class.getConstructor(Class.java:2151) ~[?:?]
           at org.apache.accumulo.core.spi.balancer.TableLoadBalancer.constructNewBalancerForTable(TableLoadBalancer.java:58) ~[accumulo-core-2.1.0-SNAPSHOT.jar:2.1.0-SNAPSHOT]
           at org.apache.accumulo.core.spi.balancer.TableLoadBalancer.getBalancerForTable(TableLoadBalancer.java:91) [accumulo-core-2.1.0-SNAPSHOT.jar:2.1.0-SNAPSHOT]
           at org.apache.accumulo.core.spi.balancer.TableLoadBalancer.getAssignments(TableLoadBalancer.java:115) [accumulo-core-2.1.0-SNAPSHOT.jar:2.1.0-SNAPSHOT]
           at org.apache.accumulo.manager.Manager.getAssignments(Manager.java:1735) [accumulo-manager-2.1.0-SNAPSHOT.jar:2.1.0-SNAPSHOT]
           at org.apache.accumulo.manager.TabletGroupWatcher.getAssignmentsFromBalancer(TabletGroupWatcher.java:880) [accumulo-manager-2.1.0-SNAPSHOT.jar:2.1.0-SNAPSHOT]
           at org.apache.accumulo.manager.TabletGroupWatcher.flushChanges(TabletGroupWatcher.java:911) [accumulo-manager-2.1.0-SNAPSHOT.jar:2.1.0-SNAPSHOT]
           at org.apache.accumulo.manager.TabletGroupWatcher.run(TabletGroupWatcher.java:318) [accumulo-manager-2.1.0-SNAPSHOT.jar:2.1.0-SNAPSHOT]
   2021-05-27T10:39:11,474 [balancer.TableLoadBalancer] INFO : Using balancer org.apache.accumulo.core.spi.balancer.SimpleLoadBalancer for table !0
   </pre>


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[GitHub] [accumulo] brianloss closed issue #2121: NoSuchMethodException using HostRegexTableLoadBalancer

Posted by GitBox <gi...@apache.org>.
brianloss closed issue #2121:
URL: https://github.com/apache/accumulo/issues/2121


   


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[GitHub] [accumulo] brianloss commented on issue #2121: NoSuchMethodException using HostRegexTableLoadBalancer

Posted by GitBox <gi...@apache.org>.
brianloss commented on issue #2121:
URL: https://github.com/apache/accumulo/issues/2121#issuecomment-849787045


   @milleruntime Do you get this error every time you run the test? Anything special about your environment or how you are running the test? I have not been able to reproduce locally on my machine.


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[GitHub] [accumulo] brianloss commented on issue #2121: NoSuchMethodException using HostRegexTableLoadBalancer

Posted by GitBox <gi...@apache.org>.
brianloss commented on issue #2121:
URL: https://github.com/apache/accumulo/issues/2121#issuecomment-849832571


   Oops, I was just not looking at the right logs. I see the error now. This wasn't caused by moving balancers to the SPI but rather by PR #1888 instead. The test is setting the property TABLE_LOAD_BALANCER to HostRegexTableLoadBalancer, which is wrong since HostRegexTableLoadBalancer is a TableLoadBalancer and is intended to be used only with the property MANAGER_TABLET_BALANCER. This didn't change--the class HostRegexTableLoadBalancer never had a constructor with a single TableId parameter. I'll have a PR in a bit to fix. Given that, I'm going to remove the blocker label from this issue.


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[GitHub] [accumulo] milleruntime commented on issue #2121: NoSuchMethodException using HostRegexTableLoadBalancer

Posted by GitBox <gi...@apache.org>.
milleruntime commented on issue #2121:
URL: https://github.com/apache/accumulo/issues/2121#issuecomment-849792334


   > @milleruntime Do you get this error every time you run the test? Anything special about your environment or how you are running the test? I have not been able to reproduce locally on my machine.
   
   Yes it seems to WARN with the exception every time, whether the test passes or not. I don't know of anything special in my environment. It happens whether I run the test in Intellij individually or on the command line with all the ITs.


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[GitHub] [accumulo] milleruntime commented on issue #2121: NoSuchMethodException using HostRegexTableLoadBalancer

Posted by GitBox <gi...@apache.org>.
milleruntime commented on issue #2121:
URL: https://github.com/apache/accumulo/issues/2121#issuecomment-849849115


   > Oops, I was just not looking at the right logs. I see the error now. This wasn't caused by moving balancers to the SPI but rather by PR #1888 instead. The test is setting the property TABLE_LOAD_BALANCER to HostRegexTableLoadBalancer, which is wrong since HostRegexTableLoadBalancer is a TableLoadBalancer and is intended to be used only with the property MANAGER_TABLET_BALANCER. This didn't change--the class HostRegexTableLoadBalancer never had a constructor with a single TableId parameter. I'll have a PR in a bit to fix. Given that, I'm going to remove the blocker label from this issue.
   
   Ah ok thanks for looking into this!


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