From c19e35116bbd2223efd57f02b612ebea08bb3667 Mon Sep 17 00:00:00 2001
From: YueW <45946325+Tanya-W@users.noreply.github.com>
Date: Mon, 26 Jun 2023 19:54:05 +0800
Subject: [PATCH] [fix](inverted index)fix transaction id not unique for one
 index change job when light index change (#21180)

---
 .../src/main/java/org/apache/doris/alter/IndexChangeJob.java  | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fe/fe-core/src/main/java/org/apache/doris/alter/IndexChangeJob.java b/fe/fe-core/src/main/java/org/apache/doris/alter/IndexChangeJob.java
index d1293484cb..fecfe4b99b 100644
--- a/fe/fe-core/src/main/java/org/apache/doris/alter/IndexChangeJob.java
+++ b/fe/fe-core/src/main/java/org/apache/doris/alter/IndexChangeJob.java
@@ -124,6 +124,8 @@ public class IndexChangeJob implements Writable {
 
         this.createTimeMs = System.currentTimeMillis();
         this.jobState = JobState.WAITING_TXN;
+        this.watershedTxnId = Env.getCurrentGlobalTransactionMgr()
+                        .getTransactionIDGenerator().getNextTransactionId();
     }
 
     public long getJobId() {
@@ -243,8 +245,6 @@ public class IndexChangeJob implements Writable {
 
     protected void runWaitingTxnJob() throws AlterCancelException {
         Preconditions.checkState(jobState == JobState.WAITING_TXN, jobState);
-        this.watershedTxnId = Env.getCurrentGlobalTransactionMgr()
-                        .getTransactionIDGenerator().getNextTransactionId();
         try {
             if (!isPreviousLoadFinished()) {
                 LOG.info("wait transactions before {} to be finished, inverted index job: {}", watershedTxnId, jobId);