keith-turner commented on code in PR #3451:
URL: https://github.com/apache/accumulo/pull/3451#discussion_r1226925104
##########
core/src/main/java/org/apache/accumulo/core/clientImpl/TableOperationsImpl.java:
##########
@@ -2145,4 +2150,37 @@ public void setTabletHostingGoal(String tableName, Range
range, TabletHostingGoa
}
}
+ @Override
+ public Stream<HostingGoalForTablet> getTabletHostingGoal(final String
tableName,
+ final Range range) throws TableNotFoundException {
+ EXISTING_TABLE_NAME.validate(tableName);
+
+ List<HostingGoalForTablet> hostingInfo = new ArrayList<>();
+
+ final Text scanRangeStart = (range.getStartKey() == null) ? null :
range.getStartKey().getRow();
+ TableId tableId = context.getTableId(tableName);
+
+ try (TabletsMetadata m = context.getAmple().readTablets().forTable(tableId)
+ .overlapping(scanRangeStart, true, null).build()) {
+
+ for (TabletMetadata tm : m) {
+ final KeyExtent tabletExtent = tm.getExtent();
+ if (scanRangeStart != null && tm.getEndRow() != null
+ && tm.getEndRow().compareTo(scanRangeStart) < 0) {
+ // the end row of this tablet is before the start row, skip it
+ log.debug(">>>> tablet {} is before scan start range: {}",
tabletExtent, scanRangeStart);
+ throw new RuntimeException("Bug in ample or this code.");
+ }
+ if (tm.getPrevEndRow() != null
+ && range.afterEndKey(new
Key(tm.getPrevEndRow()).followingKey(PartialKey.ROW))) {
+ break;
+ }
+ hostingInfo
+ .add(new HostingGoalForTablet(new TabletIdImpl(tabletExtent),
tm.getHostingGoal()));
+ }
+
+ }
Review Comment:
@jmark99 it looks good.
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