bbeaudreault commented on code in PR #4335:
URL: https://github.com/apache/hbase/pull/4335#discussion_r849545309
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hbase-client/src/main/java/org/apache/hadoop/hbase/client/AsyncTableRegionLocatorImpl.java:
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@@ -65,13 +65,17 @@ public CompletableFuture<List<HRegionLocation>>
getAllRegionLocations() {
CompletableFuture<List<HRegionLocation>> future = new
CompletableFuture<>();
addListener(ClientMetaTableAccessor.getTableHRegionLocations(conn
.getTable(TableName.META_TABLE_NAME), tableName), (locs, error) -> {
- if (error != null) {
- future.completeExceptionally(error);
- return;
- }
- locs.forEach(loc ->
conn.getLocator().getNonMetaRegionLocator().addLocationToCache(loc));
- future.complete(locs);
- });
+ if (error != null) {
+ future.completeExceptionally(error);
+ return;
+ }
+ try {
+ locs.forEach(loc -> conn.getLocator()
+ .getNonMetaRegionLocator().addLocationToCache(loc));
Review Comment:
This is an improvement, future will not hang. But i think it might make
sense to catch exception and completeExceptionally if addLocationToCache fails.
I can see both sides, but at least that is equivalent in behavior to the
blocking client. What do you think?
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