EdColeman commented on issue #3097:
URL: https://github.com/apache/accumulo/issues/3097#issuecomment-1334020722
This may need to be done first - or other provision need to be made. I was
testing an incremental update where I removed the ZooKeeper property
conversions. I started a 2.1 instance, created and populated a test table and
on 3.0 (modified) restart, the following is occurring in the tserver.
```
2022-12-01T16:00:21,353 [scan.LookupTask] WARN : exception while doing
multi-scan
java.lang.RuntimeException: java.lang.ClassNotFoundException:
org.apache.accumulo.server.replication.StatusCombiner
```
<details>
<summary>full trace</summary>
```
java.lang.RuntimeException: java.lang.ClassNotFoundException:
org.apache.accumulo.server.replication.StatusCombiner
at
org.apache.accumulo.core.iteratorsImpl.IteratorConfigUtil.loadIterators(IteratorConfigUtil.java:231)
~[accumulo-core-3.0.0-SNAPSHOT.jar:3.0.0-SNAPSHOT]
at
org.apache.accumulo.tserver.tablet.ScanDataSource.createIterator(ScanDataSource.java:229)
~[accumulo-tserver-3.0.0-SNAPSHOT.jar:3.0.0-SNAPSHOT]
at
org.apache.accumulo.tserver.tablet.ScanDataSource.iterator(ScanDataSource.java:120)
~[accumulo-tserver-3.0.0-SNAPSHOT.jar:3.0.0-SNAPSHOT]
at
org.apache.accumulo.core.iteratorsImpl.system.SourceSwitchingIterator.seek(SourceSwitchingIterator.java:231)
~[accumulo-core-3.0.0-SNAPSHOT.jar:3.0.0-SNAPSHOT]
at
org.apache.accumulo.tserver.tablet.TabletBase.lookup(TabletBase.java:358)
~[accumulo-tserver-3.0.0-SNAPSHOT.jar:3.0.0-SNAPSHOT]
at
org.apache.accumulo.tserver.tablet.TabletBase.lookup(TabletBase.java:208)
~[accumulo-tserver-3.0.0-SNAPSHOT.jar:3.0.0-SNAPSHOT]
at
org.apache.accumulo.tserver.scan.LookupTask.run(LookupTask.java:129)
~[accumulo-tserver-3.0.0-SNAPSHOT.jar:3.0.0-SNAPSHOT]
at
org.apache.accumulo.tserver.session.ScanSession$ScanMeasurer.run(ScanSession.java:62)
~[accumulo-tserver-3.0.0-SNAPSHOT.jar:3.0.0-SNAPSHOT]
at
org.apache.accumulo.core.trace.TraceWrappedRunnable.run(TraceWrappedRunnable.java:52)
~[accumulo-core-3.0.0-SNAPSHOT.jar:3.0.0-SNAPSHOT]
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
~[?:?]
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
~[?:?]
at
org.apache.accumulo.core.trace.TraceWrappedRunnable.run(TraceWrappedRunnable.java:52)
~[accumulo-core-3.0.0-SNAPSHOT.jar:3.0.0-SNAPSHOT]
at java.lang.Thread.run(Thread.java:834) ~[?:?]
Caused by: java.lang.ClassNotFoundException:
org.apache.accumulo.server.replication.StatusCombiner
at java.net.URLClassLoader.findClass(URLClassLoader.java:471) ~[?:?]
at java.lang.ClassLoader.loadClass(ClassLoader.java:588) ~[?:?]
at
org.apache.accumulo.start.classloader.AccumuloClassLoader$1.loadClass(AccumuloClassLoader.java:217)
~[accumulo-start-3.0.0-SNAPSHOT.jar:3.0.0-SNAPSHOT]
at java.lang.ClassLoader.loadClass(ClassLoader.java:521) ~[?:?]
at
org.apache.accumulo.core.classloader.ClassLoaderUtil.loadClass(ClassLoaderUtil.java:85)
~[accumulo-core-3.0.0-SNAPSHOT.jar:3.0.0-SNAPSHOT]
at
org.apache.accumulo.core.iteratorsImpl.IteratorConfigUtil.loadClass(IteratorConfigUtil.java:240)
~[accumulo-core-3.0.0-SNAPSHOT.jar:3.0.0-SNAPSHOT]
at
org.apache.accumulo.core.iteratorsImpl.IteratorConfigUtil.loadIterators(IteratorConfigUtil.java:215)
~[accumulo-core-3.0.0-SNAPSHOT.jar:3.0.0-SNAPSHOT]
... 12 more
```
</details>
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