From 022bb1e39ce55f3d1cccefd2513310529b1ae83f Mon Sep 17 00:00:00 2001
From: Nikolay Shestakov <tesseract@ydb.tech>
Date: Mon, 20 May 2024 08:09:05 +0000
Subject: [PATCH] Remove unused field and deprecate other

---
 ydb/core/protos/pqconfig.proto                |  4 +--
 .../actors/read_session_actor.cpp             | 32 ++++++-------------
 2 files changed, 12 insertions(+), 24 deletions(-)

diff --git a/ydb/core/protos/pqconfig.proto b/ydb/core/protos/pqconfig.proto
index c00f8057905c..001dfb82fec5 100644
--- a/ydb/core/protos/pqconfig.proto
+++ b/ydb/core/protos/pqconfig.proto
@@ -620,11 +620,11 @@ message TReleasePartition {
     optional uint64 Generation = 2;
     optional string Session = 3;
     optional string ClientId = 4;
-    optional uint32 Count = 5;
+    optional uint32 Count = 5 [deprecated = true]; // Remove at 2025-1
     optional NActorsProto.TActorId PipeClient = 6;
     optional uint32 Group = 7;
     optional string Path = 8;
-    repeated uint32 Partition = 9;
+    reserved 9; // repeated uint32 Partition = 9
 }
 
 message TPartitionReleased {
diff --git a/ydb/services/persqueue_v1/actors/read_session_actor.cpp b/ydb/services/persqueue_v1/actors/read_session_actor.cpp
index 7365081a5ace..5da8f49f37e4 100644
--- a/ydb/services/persqueue_v1/actors/read_session_actor.cpp
+++ b/ydb/services/persqueue_v1/actors/read_session_actor.cpp
@@ -1445,15 +1445,7 @@ void TReadSessionActor<UseMigrationProtocol>::Handle(TEvPersQueue::TEvReleasePar
         }
     };
 
-    std::unordered_set<ui32> partitionsForRealese;
-    for (ui32 p : record.GetPartition()) {
-        partitionsForRealese.insert(p);
-    }
-    if (group) {
-        partitionsForRealese.insert(group - 1);
-    }
-
-    if (partitionsForRealese.empty()) {
+    if (!group) {
         // Release partitions by count
         for (ui32 c = 0; c < record.GetCount(); ++c) {
             if (Partitions.empty()) {
@@ -1484,32 +1476,28 @@ void TReadSessionActor<UseMigrationProtocol>::Handle(TEvPersQueue::TEvReleasePar
             doRelease(jt);
         }
     } else {
+        ui32 partitionId = group - 1;
+        bool found = false;
+
         // Release partitions by partition id
         LOG_DEBUG_S(ctx, NKikimrServices::PQ_READ_PROXY, PQ_LOG_PREFIX << " gone release"
-            << ": partitions# " << JoinRange(", ", partitionsForRealese.begin(), partitionsForRealese.end()));
+            << ": partition# " << partitionId);
 
         for (auto it = Partitions.begin(); it != Partitions.end(); ++it) {
             auto& partitionInfo = it->second;
-            if (partitionInfo.Topic->GetInternalName() == converter->GetInternalName()) {
-                auto pt = partitionsForRealese.find(partitionInfo.Partition.Partition);
-                if (pt == partitionsForRealese.end()) {
-                    continue;
-                }
-
+            if (partitionInfo.Topic->GetInternalName() == converter->GetInternalName() && partitionId == partitionInfo.Partition.Partition) {
                 if (!partitionInfo.Releasing) {
                     doRelease(it);
                 }
 
-                partitionsForRealese.erase(pt);
-                if (partitionsForRealese.empty()) {
-                    break;
-                }
+                found = true;
+                break;
             }
         }
 
-        if (!partitionsForRealese.empty()) {
+        if (!found) {
             return CloseSession(PersQueue::ErrorCode::ErrorCode::ERROR,
-                                TStringBuilder() << "internal error: releasing unknown partitions " << JoinRange(", ", partitionsForRealese.begin(), partitionsForRealese.end()),
+                                TStringBuilder() << "internal error: releasing unknown partition " << partitionId,
                                 ctx);
         }
     }