ctubbsii commented on a change in pull request #2169:
URL: https://github.com/apache/accumulo/pull/2169#discussion_r655652046
##########
File path:
server/manager/src/main/java/org/apache/accumulo/manager/tableOps/delete/DeleteTable.java
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@@ -41,6 +42,19 @@ public DeleteTable(NamespaceId namespaceId, TableId tableId)
{
@Override
public long isReady(long tid, Manager env) throws Exception {
+
+ // Before attempting to delete the table, cancel any running user
+ // compactions.
+ if (Utils.reserveNamespace(env, namespaceId, tid, false, true,
TableOperation.COMPACT_CANCEL)
+ + Utils.reserveTable(env, tableId, tid, false, true,
TableOperation.COMPACT_CANCEL) == 0) {
+ try {
+ CancelCompactions.mutateZooKeeper(tid, tableId, env);
+ } finally {
+ Utils.unreserveTable(env, tableId, tid, false);
+ Utils.unreserveNamespace(env, namespaceId, tid, false);
+ }
+ }
+
return Utils.reserveNamespace(env, namespaceId, tid, false, false,
TableOperation.DELETE)
+ Utils.reserveTable(env, tableId, tid, true, true,
TableOperation.DELETE);
Review comment:
Not related to your changes, but is it weird that reserveNamespace is
okay with the namespace not existing, but reserveTable requires the table to
exist? How can the table exist without its namespace? And, would we want to try
to delete a table that's in a non-existent namespace?
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