YARN-9528. Federation RMs starting up at the same time can give duplicate application IDs. Contributed by Young Chen.

2019-05-03 15:05:17 -07:00 · 2019-05-03 15:05:17 -07:00 · d331a2a0c2
commit d331a2a0c2
parent f194540520
2 changed files with 5 additions and 0 deletions
--- a/hadoop-yarn-project/hadoop-yarn/bin/FederationStateStore/MySQL/FederationStateStoreTables.sql
+++ b/hadoop-yarn-project/hadoop-yarn/bin/FederationStateStore/MySQL/FederationStateStoreTables.sql
@ -37,6 +37,7 @@ CREATE TABLE membership(
   lastStartTime bigint NULL,
   capability varchar(6000),
   CONSTRAINT pk_subClusterId PRIMARY KEY (subClusterId)
+   UNIQUE(lastStartTime)
 );

 CREATE TABLE policies(
--- a/hadoop-yarn-project/hadoop-yarn/bin/FederationStateStore/SQLServer/FederationStateStoreTables.sql
+++ b/hadoop-yarn-project/hadoop-yarn/bin/FederationStateStore/SQLServer/FederationStateStoreTables.sql
@ -78,6 +78,10 @@ IF NOT EXISTS ( SELECT * FROM [FederationStateStore].sys.tables
            (
                [subClusterId]
            )
+            CONSTRAINT [uc_lastStartTime] UNIQUE
+            (
+                [lastStartTime]
+            )
        )

        SET ANSI_PADDING OFF