diff --git a/packages/backend/server/src/models/copilot-session.ts b/packages/backend/server/src/models/copilot-session.ts
index 1d9586768e..76e895bd33 100644
--- a/packages/backend/server/src/models/copilot-session.ts
+++ b/packages/backend/server/src/models/copilot-session.ts
@@ -580,7 +580,6 @@ export class CopilotSessionModel extends BaseModel {
       .reduce((prev, cost) => prev + cost, 0);
   }
 
-  @Transactional()
   async cleanupEmptySessions(earlyThen: Date) {
     // delete never used sessions
     const { count: removed } = await this.db.aiSession.deleteMany({
diff --git a/packages/backend/server/src/models/copilot-workspace.ts b/packages/backend/server/src/models/copilot-workspace.ts
index b59a9ebe43..0dc0e5b466 100644
--- a/packages/backend/server/src/models/copilot-workspace.ts
+++ b/packages/backend/server/src/models/copilot-workspace.ts
@@ -185,7 +185,6 @@ export class CopilotWorkspaceConfigModel extends BaseModel {
     return { workspaceId, AND: condition };
   }
 
-  @Transactional()
   async listEmbeddableDocIds(workspaceId: string) {
     const condition = this.getEmbeddableCondition(workspaceId);
     const rows = await this.db.snapshot.findMany({
diff --git a/packages/backend/server/src/plugins/copilot/embedding/job.ts b/packages/backend/server/src/plugins/copilot/embedding/job.ts
index 5fd6413501..b4880b22b6 100644
--- a/packages/backend/server/src/plugins/copilot/embedding/job.ts
+++ b/packages/backend/server/src/plugins/copilot/embedding/job.ts
@@ -416,12 +416,12 @@ export class CopilotEmbeddingJob {
           workspaceId,
           docId
         );
-      this.logger.log(
+      this.logger.debug(
         `Check if doc ${docId} in workspace ${workspaceId} needs embedding: ${needEmbedding}`
       );
       if (needEmbedding) {
         if (signal.aborted) {
-          this.logger.log(
+          this.logger.debug(
             `Doc ${docId} in workspace ${workspaceId} is aborted, skipping embedding.`
           );
           return;
@@ -442,7 +442,7 @@ export class CopilotEmbeddingJob {
               existsContent &&
               this.normalize(existsContent) === this.normalize(fragment.summary)
             ) {
-              this.logger.log(
+              this.logger.debug(
                 `Doc ${docId} in workspace ${workspaceId} has no content change, skipping embedding.`
               );
               return;
@@ -464,12 +464,12 @@ export class CopilotEmbeddingJob {
                 chunks
               );
             }
-            this.logger.log(
+            this.logger.debug(
               `Doc ${docId} in workspace ${workspaceId} has summary, embedding done.`
             );
           } else {
             // for empty doc, insert empty embedding
-            this.logger.warn(
+            this.logger.debug(
               `Doc ${docId} in workspace ${workspaceId} has no summary, fulfilling empty embedding.`
             );
             await this.models.copilotContext.fulfillEmptyEmbedding(
@@ -478,7 +478,7 @@ export class CopilotEmbeddingJob {
             );
           }
         } else {
-          this.logger.warn(
+          this.logger.debug(
             `Doc ${docId} in workspace ${workspaceId} has no fragment, fulfilling empty embedding.`
           );
           await this.models.copilotContext.fulfillEmptyEmbedding(
@@ -498,7 +498,7 @@ export class CopilotEmbeddingJob {
         error instanceof CopilotContextFileNotSupported &&
         error.message.includes('no content found')
       ) {
-        this.logger.warn(
+        this.logger.debug(
           `Doc ${docId} in workspace ${workspaceId} has no content, fulfilling empty embedding.`
         );
         // if the doc is empty, we still need to fulfill the embedding