kevinrr888 commented on code in PR #5416:
URL: https://github.com/apache/accumulo/pull/5416#discussion_r2056551884
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server/manager/src/main/java/org/apache/accumulo/manager/Manager.java:
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@@ -976,31 +966,37 @@ private long balanceTablets() {
tserverStatusForLevel, partitionedMigrations.get(dl), dl,
getTablesForLevel(dl));
wait = Math.max(tabletBalancer.balance(params), wait);
long migrationsOutForLevel = 0;
- for (TabletMigration m :
checkMigrationSanity(statusForBalancerLevel.keySet(),
- params.migrationsOut(), dl)) {
- final KeyExtent ke = KeyExtent.fromTabletId(m.getTablet());
- if (partitionedMigrations.get(dl).contains(ke)) {
- log.warn("balancer requested migration more than once, skipping
{}", m);
- continue;
+ try (
+ var tabletsMutator =
getContext().getAmple().conditionallyMutateTablets(result -> {})) {
+ for (TabletMigration m :
checkMigrationSanity(statusForBalancerLevel.keySet(),
+ params.migrationsOut(), dl)) {
+ final KeyExtent ke = KeyExtent.fromTabletId(m.getTablet());
+ if (partitionedMigrations.get(dl).contains(ke)) {
+ log.warn("balancer requested migration more than once, skipping
{}", m);
+ continue;
+ }
+ migrationsOutForLevel++;
+ tabletsMutator.mutateTablet(ke).requireAbsentOperation()
Review Comment:
Implemented `requireCurrentLocationNotEqualTo`. Please take a look at the
new `CurrentLocationNotEqualToIterator` class
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