ivakegg commented on code in PR #3142:
URL: https://github.com/apache/accumulo/pull/3142#discussion_r1059473711
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core/src/main/java/org/apache/accumulo/core/conf/Property.java:
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@@ -726,6 +726,14 @@ public enum Property {
"The number of threads on each tablet server available to retrieve"
+ " summary data, that is not currently in cache, from RFiles.",
"2.0.0"),
+ TSERV_LAST_LOCATION_MODE("tserver.last.location.mode", "compact",
PropertyType.LAST_LOCATION_MODE,
+ "Describes how the system will assign tablets initially by defining how
the 'last' location is updated."
+ + " If 'compact' is the mode, then the system will assign tablets
based on the data locality (e.g. the last compaction location)."
+ + " If 'assign' is the mode, then tablets will be initially assigned
to the last place they were assigned."
+ + " If 'unload' is the mode, then tablets will be initially assigned
to the last place they were unloaded from (i.e. requires a clean shutdown)."
Review Comment:
ok, that is reasonable argument. I was briefly thinking that one would want
only updating of the last location on unload. This would allow a scan of the
accumulo metadata to see what the discrepencies between the last and current
locations.
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