sankarh commented on a change in pull request #688: HIVE-21886 : REPL - With
table list - Handle rename events during replace policy
URL: https://github.com/apache/hive/pull/688#discussion_r297668771
##########
File path:
ql/src/java/org/apache/hadoop/hive/ql/parse/repl/dump/events/AlterTableHandler.java
##########
@@ -120,18 +121,18 @@ private boolean handleForTableLevelReplication(Context
withinContext, String tbl
}
// Return true, if event needs to be dumped, else return false.
- private boolean handleForTableLevelReplicationForRename(Context
withinContext, String oldName, String newName) {
+ private boolean renameHandlerForTableLevelReplication(Context withinContext,
String oldName, String newName) {
// If the table is renamed after being added to the list of tables to be
bootstrapped, then remove it from the
// list of tables to be bootstrapped.
- boolean oldTableIsPresent =
withinContext.removeFromListOfTablesForBootstrap(oldName);
+ boolean oldTableInBootstrapList =
withinContext.removeFromListOfTablesForBootstrap(oldName);
ReplScope oldPolicy = withinContext.oldReplScope == null ?
withinContext.replScope : withinContext.oldReplScope;
if (ReplUtils.tableIncludedInReplScope(oldPolicy, oldName)) {
// If old table satisfies the filter, but the new table does not, then
the old table should be dropped.
// This should be done, only if the old table is not in the list of
tables to be bootstrapped which is a multi
// rename case. In case of multi rename, only the first rename should do
the drop.
if (!ReplUtils.tableIncludedInReplScope(withinContext.replScope,
newName)) {
- if (oldTableIsPresent) {
+ if (oldTableInBootstrapList) {
// If the old table was present in the list of tables to be
bootstrapped, then just ignore the event.
return false;
} else {
Review comment:
A -> B where A doesn't matches old policy but B matches old but not new
policy. So, no-op and don't dump event as well. Now, B -> C where B matches old
policy and C doesn't match new policy. In this case, we add drop event for B
which is wrong as it is missing in bootstrap list. Pls check if this is
possible.
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