Jonathan Hsieh created HBASE-16668: -------------------------------------- Summary: Admin class should have a synchronous Admin#mergeRegions* method Key: HBASE-16668 URL: https://issues.apache.org/jira/browse/HBASE-16668 Project: HBase Issue Type: Bug Components: hbase Affects Versions: 2.0.0 Reporter: Jonathan Hsieh Fix For: 2.0.0
In trunk from HBASE-14552, we have deprecated {{void Admin#mergeRegions}} (in 1.x this was an asynchronous call) and replaced it with {{Future<Void> Admin#mergeRegionsAsync}} which is clearly async. This leaves us only with the async version. We should have an easy way to make {{mergeRegions}} or an equivalant behave synchronously. For normal java Futures, we could just call the future's {{get()}} method. Unforutnately, the future this method returns doesn't follow java Future convention and throws Unimplemented operation when a plain {{get()}} is called and makes the api harder to use and read. We could make this future act more normally, and have the timeout throw an InterruptedException. Alternately, we could expose a new method in {{Admin}} that behaves synchronously such as {{HBaseAdmin#mergeRegionsSync}}. The caveat here is that we shouldn't use the name {{#mergeRegions}} since it exists in 1.x with async semantics. -- This message was sent by Atlassian JIRA (v6.3.4#6332)