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Posted to notifications@accumulo.apache.org by "dlmarion (via GitHub)" <gi...@apache.org> on 2026/09/10 14:44:54 UTC
[I] Property `table.compaction.minor.age` default value, should it be zero? [accumulo]
dlmarion opened a new issue, #6532:
URL: https://github.com/apache/accumulo/issues/6532
The property, new in 4.0.0, has a default value of 10 minutes which will change the behavior of minor compactions on upgrade from an earlier release. I'm wondering if the default value should disable this functionality to preserve prior behavior.
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Re: [I] Property `table.compaction.minor.age` default value, should it be zero? [accumulo]
Posted by "Amemeda (via GitHub)" <gi...@apache.org>.
Amemeda commented on issue #6532:
URL: https://github.com/apache/accumulo/issues/6532#issuecomment-6423627855
I dont think Integer.MAX_VALUE is valid default value format for TIME_DURATION. It can be months in the form of days, how many months would be good? I am testing the default value with 4 months
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Re: [I] Property `table.compaction.minor.age` default value, should it be zero? [accumulo]
Posted by "dlmarion (via GitHub)" <gi...@apache.org>.
dlmarion commented on issue #6532:
URL: https://github.com/apache/accumulo/issues/6532#issuecomment-6296396139
@keith-turner and I discussed. He said that this property was added to support the eventual consistency time for ScanServers, which do a metadata refresh. @keith-turner said that there is no issue setting this to a much larger value to provide a behavior consistent with prior releases. Maybe Integer.MAX_VALUE or something equivalent to some number of months.
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Re: [I] Property `table.compaction.minor.age` default value, should it be zero? [accumulo]
Posted by "dlmarion (via GitHub)" <gi...@apache.org>.
dlmarion commented on issue #6532:
URL: https://github.com/apache/accumulo/issues/6532#issuecomment-6046960322
> The comment for the property states: `The default value of this property is set to such a high value that is should never cause a minor compaction.`.
Ok, then maybe we set the default value a larger amount? 10 minutes doesn't seem like it's "such a high value that is should never cause a minor compaction".
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Re: [I] Property `table.compaction.minor.age` default value, should it be zero? [accumulo]
Posted by "dlmarion (via GitHub)" <gi...@apache.org>.
dlmarion closed issue #6532: Property `table.compaction.minor.age` default value, should it be zero?
URL: https://github.com/apache/accumulo/issues/6532
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Re: [I] Property `table.compaction.minor.age` default value, should it be zero? [accumulo]
Posted by "ddanielr (via GitHub)" <gi...@apache.org>.
ddanielr commented on issue #6532:
URL: https://github.com/apache/accumulo/issues/6532#issuecomment-6041650994
The comment for the property states: `The default value of this property is set to such a high value that is should never cause a minor compaction.`.
The property was added in #4853 which switches the behavior from a `idle` trigger to a max age.
Looking at LargestFirstMemoryManager, setting the behavior to zero doesn't seem like it would match earlier code behavior either.
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