Signed-off-by: Pavel Pogodaev <p.pogodaev@yadro.com>

@@ -167,3 +168,3 @@
 		return true, nil
 	}
-	return true, err
+	return true, fmt.Errorf("try put single '%s': %w", it.address, err)

@@ -2670,6 +2670,10 @@ func (p *Pool) DeleteObject(ctx context.Context, prm PrmObjectDelete) error {
 	prmCtx.useDefaultSession()
 	prmCtx.useVerb(session.VerbObjectDelete)
 	prmCtx.useAddress(prm.addr)
+	cp, err := p.connection()

@@ -2678,3 +2682,3 @@
 		relatives, err := relations.ListAllRelations(ctx, p, prm.addr.Container(), prm.addr.Object(), tokens)
 		if err != nil {
-			return fmt.Errorf("failed to collect relatives: %w", err)
+			return fmt.Errorf("failed to collect relatives via client %s: %w", cp.address(), err)

@@ -167,3 +168,3 @@
 		return true, nil
 	}
-	return true, err
+	return true, fmt.Errorf("try put single '%s': %w", it.address, err)

@@ -3241,3 +3249,3 @@
 	res, err := p.HeadObject(ctx, prm)
 	if err != nil {
-		return nil, fmt.Errorf("failed to get linking object's header: %w", err)
+		return nil, fmt.Errorf("failed to get linking object's header by addr: %s %w", cp.address(), err)

@@ -3291,3 +3307,3 @@
 	res, err := p.SearchObjects(ctx, prm)
 	if err != nil {
-		return nil, fmt.Errorf("failed to search objects by split ID: %w", err)
+		return nil, fmt.Errorf("failed to search objects by split ID by addr %s: %w", cp.address(), err)

@@ -3323,3 +3343,3 @@
 	resSearch, err := p.SearchObjects(ctx, prm)
 	if err != nil {
-		return nil, fmt.Errorf("failed to find object children: %w", err)
+		return nil, fmt.Errorf("failed to find object children by addr %s: %w", cp.address(), err)

@@ -3269,3 +3281,3 @@
 	idMember, ok := res.PreviousID()
 	if !ok {
-		return oid.ID{}, relations.ErrNoLeftSibling
+		return oid.ID{}, fmt.Errorf("failed to get sibling via client %s %w", cp.address(), relations.ErrNoLeftSibling)

@@ -152,3 +153,3 @@
 	res, err := it.client.ObjectPutSingle(ctx, cliPrm)
 	if err != nil && status.Code(err) == codes.Unimplemented {
-		return false, err
+		return false, fmt.Errorf("try put single '%s': %w", it.address, err)

@@ -3197,6 +3197,10 @@ func (p *Pool) GetSplitInfo(ctx context.Context, cnrID cid.ID, objID oid.ID, tok
 	var addr oid.Address
 	addr.SetContainer(cnrID)
 	addr.SetObject(objID)
+	cp, err := p.connection()

@@ -677,3 +677,3 @@
 	for _, cl := range p.clientMap {
 		if closeErr := cl.close(); closeErr != nil {
-			p.log(zapcore.ErrorLevel, "close client connection", zap.Error(closeErr))
+			p.log(zapcore.ErrorLevel, "close client connection", zap.Error(closeErr), zap.String("addr", cl.endpoint()))

@@ -963,3 +963,3 @@
 				if err != nil {
 					finErr = finalError(finErr, err)
-					p.log(zap.DebugLevel, "failed to create tree client", zap.String("request_id", reqID), zap.Int("remaining attempts", attempts))
+					p.log(zap.DebugLevel, "failed to create tree client", zap.String("request_id", reqID), zap.Int("remaining attempts", attempts), zap.String("addr", treeCl.endpoint()))

@@ -2770,3 +2770,3 @@
 	err := p.initCallContext(&cc, prm.prmCommon, prmContext{})
 	if err != nil {
-		return obj, err
+		return obj, fmt.Errorf("head object via client %s: %w", cc.endpoint, err)

@@ -2770,3 +2770,3 @@
 	err := p.initCallContext(&cc, prm.prmCommon, prmContext{})
 	if err != nil {
-		return obj, err
+		return obj, fmt.Errorf("head object : %w", err)

@@ -128,3 +128,3 @@
 		return nil
 	}
-	return c.client.Conn().Close()
+	return fmt.Errorf("address '%s', %w", c.address, c.client.Conn().Close())

@@ -1065,3 +1065,3 @@
 			// Tree pool with netmap support does not operate with background goroutine, so we have to close connection immediately.
 			if err = newTreeCl.close(); err != nil {
-				p.log(zap.WarnLevel, "failed to close recently dialed tree client", zap.String("address", addr.URIAddr()), zap.Error(err))
+				p.log(zap.WarnLevel, "failed to close recently dialed tree client", zap.Error(err))

@@ -2513,3 +2513,3 @@
 	}
 
-	return err
+	return fmt.Errorf("initial call via client '%s' : %w", cp.address(), err)

@@ -128,3 +128,3 @@
 		return nil
 	}
-	return c.client.Conn().Close()
+	return fmt.Errorf("address '%s': %w", c.address, c.client.Conn().Close())