diff --git a/services/backup/src/Reactors/server/PullBackupReactor.cpp b/services/backup/src/Reactors/server/PullBackupReactor.cpp
--- a/services/backup/src/Reactors/server/PullBackupReactor.cpp
+++ b/services/backup/src/Reactors/server/PullBackupReactor.cpp
@@ -53,14 +53,25 @@
   // we make sure that the blob client's state is flushed to the main memory
   // as there may be multiple threads from the pool taking over here
   const std::lock_guard<std::mutex> lock(this->reactorStateMutex);
+  response->set_attachmentholders("");
+  response->set_backupid("");
+  size_t extraBytesNeeded = 0;
   if (this->state == State::COMPACTION) {
     response->set_backupid(this->backupItem->getBackupID());
+    extraBytesNeeded += database::BackupItem::FIELD_BACKUP_ID.size();
+    extraBytesNeeded += this->backupItem->getBackupID().size();
+
     if (this->getReactor == nullptr) {
+      extraBytesNeeded += database::BackupItem::FIELD_ATTACHMENT_HOLDERS.size();
+      extraBytesNeeded += this->backupItem->getAttachmentHolders().size();
+      response->set_attachmentholders(this->backupItem->getAttachmentHolders());
       this->initializeGetReactor(this->backupItem->getCompactionHolder());
     }
     std::string dataChunk;
     this->dataChunks->blockingRead(dataChunk);
     if (!dataChunk.empty()) {
+      dataChunk =
+          this->PrepareDataChunkWithExtraData(dataChunk, extraBytesNeeded);
       response->set_compactionchunk(dataChunk);
       return nullptr;
     }
@@ -72,20 +83,11 @@
       throw std::runtime_error(
           this->getReactor->getStatusHolder()->getStatus().error_message());
     }
-    if (!this->backupItem->getAttachmentHolders().empty()) {
-      this->state = State::COMPACTION_ATTACHMENTS;
-    } else {
-      this->state = State::LOGS;
-    }
-    return nullptr;
-  }
-  if (this->state == State::COMPACTION_ATTACHMENTS) {
-    if (this->backupItem->getAttachmentHolders().empty()) {
-      throw std::runtime_error("trying to send empty backup attachments");
-    }
-    response->set_attachmentholders(this->backupItem->getAttachmentHolders());
     this->state = State::LOGS;
-    return nullptr;
+    if (!this->internalBuffer.empty()) {
+      response->set_compactionchunk(std::move(this->internalBuffer));
+      return nullptr;
+    }
   }
   if (this->state == State::LOGS) {
     // TODO make sure logs are received in correct order regardless their size
@@ -101,6 +103,11 @@
       if (!this->dataChunks->isEmpty()) {
         throw std::runtime_error("dangling data discovered after reading logs");
       }
+      if (!this->internalBuffer.empty()) {
+        response->set_logid(this->previousLogID);
+        response->set_logchunk(std::move(this->internalBuffer));
+        return nullptr;
+      }
       return std::make_unique<grpc::Status>(grpc::Status::OK);
     }
     if (this->currentLogIndex > this->logs.size()) {
@@ -113,6 +120,13 @@
     // it is only not null when we read data in chunks
     if (this->currentLog == nullptr) {
       this->currentLog = this->logs.at(this->currentLogIndex);
+      extraBytesNeeded += database::LogItem::FIELD_LOG_ID.size();
+      extraBytesNeeded += this->currentLog->getLogID().size();
+
+      response->set_attachmentholders(this->currentLog->getAttachmentHolders());
+      extraBytesNeeded += database::LogItem::FIELD_ATTACHMENT_HOLDERS.size();
+      extraBytesNeeded += this->currentLog->getAttachmentHolders().size();
+
       if (this->currentLog->getPersistedInBlob()) {
         // if the item is stored in the blob, we initialize the get reactor
         // and proceed
@@ -123,14 +137,14 @@
         // writeResponse will take another one from the collection
         response->set_logid(this->currentLog->getLogID());
         response->set_logchunk(this->currentLog->getValue());
-        if (!this->currentLog->getAttachmentHolders().empty()) {
-          this->state = State::LOG_ATTACHMENTS;
-        } else {
-          this->nextLog();
-        }
+        this->nextLog();
         return nullptr;
       }
+    } else {
+      extraBytesNeeded += database::LogItem::FIELD_LOG_ID.size();
+      extraBytesNeeded += this->currentLog->getLogID().size();
     }
+    response->set_backupid(this->currentLog->getBackupID());
     response->set_logid(this->currentLog->getLogID());
     // we want to read the chunks from the blob through the get client until
     // we get an empty chunk - a sign of "end of chunks"
@@ -144,29 +158,15 @@
     // next one from the logs collection.
     //  If there's data inside, we write it to the client and proceed.
     if (dataChunk.empty()) {
-      if (!this->currentLog->getAttachmentHolders().empty()) {
-        this->state = State::LOG_ATTACHMENTS;
-      } else {
-        this->nextLog();
-      }
+      this->nextLog();
       return nullptr;
     } else {
+      dataChunk =
+          this->PrepareDataChunkWithExtraData(dataChunk, extraBytesNeeded);
       response->set_logchunk(dataChunk);
     }
     return nullptr;
   }
-  if (this->state == State::LOG_ATTACHMENTS) {
-    if (this->currentLog == nullptr) {
-      throw std::runtime_error(
-          "trying to send attachments of a non-existing log item");
-    }
-    if (this->currentLog->getAttachmentHolders().empty()) {
-      throw std::runtime_error("trying to send empty attachments");
-    }
-    response->set_attachmentholders(this->currentLog->getAttachmentHolders());
-    this->nextLog();
-    return nullptr;
-  }
 
   throw std::runtime_error("unhandled state");
 }