kevinrr888 commented on code in PR #5416:
URL: https://github.com/apache/accumulo/pull/5416#discussion_r2056548531
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server/manager/src/main/java/org/apache/accumulo/manager/Manager.java:
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@@ -677,19 +650,37 @@ public void run() {
* balanceTablets() balances tables by DataLevel. Return the current set of
migrations partitioned
* by DataLevel
*/
- private static Map<DataLevel,Set<KeyExtent>>
- partitionMigrations(final Set<KeyExtent> migrations) {
+ private Map<DataLevel,Set<KeyExtent>> partitionMigrations() {
final Map<DataLevel,Set<KeyExtent>> partitionedMigrations = new
EnumMap<>(DataLevel.class);
// populate to prevent NPE
for (DataLevel dl : DataLevel.values()) {
- partitionedMigrations.put(dl, new HashSet<>());
+ Set<KeyExtent> extents = new HashSet<>();
+ // prev row needed for the extent
+ try (var tabletsMetadata =
getContext().getAmple().readTablets().forLevel(dl)
+ .fetch(TabletMetadata.ColumnType.PREV_ROW,
TabletMetadata.ColumnType.MIGRATION).build()) {
+ for (var tabletMetadata : tabletsMetadata) {
+ if (tabletMetadata.getMigration() != null) {
+ extents.add(tabletMetadata.getExtent());
+ }
+ }
+ }
+ partitionedMigrations.put(dl, extents);
}
- migrations.forEach(ke -> {
- partitionedMigrations.get(DataLevel.of(ke.tableId())).add(ke);
- });
return partitionedMigrations;
}
+ /**
+ * Delete the migration, if present, for the given extent if the migration
destination is the
+ * provided tserver
+ */
+ void conditionallyDeleteMigration(KeyExtent extent, TServerInstance tserver)
{
Review Comment:
Dropped in 0a9455cdea88f167179953a1eb8073bf7a77c2f3
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