[iotdb] branch master updated: Fix confignode restart Error (#10752)

[tanxinyu]

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tanxinyu pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/iotdb.git


The following commit(s) were added to refs/heads/master by this push:
     new 53b00d46c65 Fix confignode restart Error (#10752)
53b00d46c65 is described below

commit 53b00d46c6538cffc21cb3662c75771835d6d9f4
Author: Potato <tanxi...@apache.org>
AuthorDate: Tue Aug 1 14:25:06 2023 +0800

    Fix confignode restart Error (#10752)
    
    fix npe casue by setDataAllotMap
    
    Signed-off-by: OneSizeFitQuorum <tanxi...@apache.org>
---
 .../manager/load/balancer/partition/DataPartitionPolicyTable.java     | 4 ++++
 1 file changed, 4 insertions(+)

diff --git 
a/iotdb-core/confignode/src/main/java/org/apache/iotdb/confignode/manager/load/balancer/partition/DataPartitionPolicyTable.java
 
b/iotdb-core/confignode/src/main/java/org/apache/iotdb/confignode/manager/load/balancer/partition/DataPartitionPolicyTable.java
index ba367792448..ed297abf4d7 100644
--- 
a/iotdb-core/confignode/src/main/java/org/apache/iotdb/confignode/manager/load/balancer/partition/DataPartitionPolicyTable.java
+++ 
b/iotdb-core/confignode/src/main/java/org/apache/iotdb/confignode/manager/load/balancer/partition/DataPartitionPolicyTable.java
@@ -120,6 +120,10 @@ public class DataPartitionPolicyTable {
 
   /** Only use this interface when init PartitionBalancer. */
   public void setDataAllotMap(Map<TSeriesPartitionSlot, TConsensusGroupId> 
dataAllotMap) {
+    if (seriesPartitionSlotCounter.size() == 0) {
+      // No need to re-balance when there is no DataRegionGroup
+      return;
+    }
     try {
       dataAllotTableLock.lock();
       int mu = SERIES_SLOT_NUM / seriesPartitionSlotCounter.size();