Dom G.

Add compaction IT that verifies queues are cleared when tablets no longer need to compact

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Addresses #4399

Use NanoTime in more places

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#4364 added the NanoTime util. This PR uses that in a few places that seem helpful.

Use Duration instead of long+TimeUnit in ReadOnlyTStore.unreserve

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This re-implements the changes that were originally made in #4358 and then reverted in 23e17129de0350d5496345c78d7fd86080bb1115 since they were causing issues with at least one test hanging ([see details](https://github.com/apache/accumulo/issues/4361#issuecomment-1995475831)). These changes...

Investigate replacing long+TimeUnit with Duration in more places

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**Is your feature request related to a problem? Please describe.** No problem. It seems like a nice improvement to replace methods that accept a long and a `TimeUnit` with a...

Consider adding caching to more ID objects.

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**Is your feature request related to a problem? Please describe.** #4313 added caching to CompactorGroupId like this: ```java static final Cache cache = Caches.getInstance() .createNewBuilder(Caches.CacheName.COMPACTOR_GROUP_ID, false).weakValues().build(); ``` There are several...

In #4160 an IT was added to test some of the conditions that were added to the conditional mutations. As mentioned below, it would be nice to move this test...

Investigate if a new human readable export file version should be created

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**Is your feature request related to a problem? Please describe.** Issue #3857 suggests that it should be possible to change the hosting goal of a table when imported. I think...

Add configuration to start external compactions and scan servers

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Right now when using uno if I want to start external compactions or scan servers I need to stop accumulo change the cluster.yaml within the install folder and then start...

Replace map reduce prop in continuous ingest verify

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Fixes #274

This PR adds an optional component to the value created in continuous ingest. A random portion of data will be inserted into the value whose size is determined via a...