[#195] services/object: Write debug log messages on worker pool errors

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>

pkg/services/object/head/distributed.go

@@ -125,7 +125,9 @@ loop:
 				h.w.write(head)
 			}); err != nil {
 				wg.Done()
-				// TODO: log error
+
+				svcutil.LogWorkerPoolError(h.log, "HEAD", err)
+
 				break loop
 			}
 		}

pkg/services/object/put/distributed.go

@@ -103,7 +103,9 @@ loop:
 				traverser.SubmitSuccess()
 			}); err != nil {
 				wg.Done()
-				// TODO: log error
+
+				svcutil.LogWorkerPoolError(t.log, "PUT", err)
+
 				break loop
 			}
 		}

pkg/services/object/range/streamer.go

@@ -205,7 +205,9 @@ loop:
 					nextRange.SetOffset(nextRange.GetOffset() + uw)
 				}); err != nil {
 					wg.Done()
-					// TODO: log error
+
+					svcutil.LogWorkerPoolError(p.log, "RANGE", err)
+
 					break loop
 				}
 

pkg/services/object/rangehash/distributed.go

@@ -125,7 +125,9 @@ loop:
 				}
 			}); err != nil {
 				wg.Done()
-				// TODO: log error
+
+				svcutil.LogWorkerPoolError(h.log, "RANGEHASH", err)
+
 				break loop
 			}
 		}

pkg/services/object/search/streamer.go

@@ -8,7 +8,7 @@ import (
 	"github.com/nspcc-dev/neofs-api-go/pkg/object"
 	"github.com/nspcc-dev/neofs-node/pkg/core/netmap"
 	"github.com/nspcc-dev/neofs-node/pkg/network"
-	"github.com/nspcc-dev/neofs-node/pkg/services/object/util"
+	svcutil "github.com/nspcc-dev/neofs-node/pkg/services/object/util"
 	"github.com/nspcc-dev/neofs-node/pkg/services/object_manager/placement"
 	"github.com/pkg/errors"
 )
@@ -113,7 +113,7 @@ func (p *Streamer) preparePrm(prm *Prm) error {
 		traverseOpts = append(traverseOpts, placement.SuccessAfter(1))
 
 		// use local-only placement builder
-		builder = util.NewLocalPlacement(builder, p.localAddrSrc)
+		builder = svcutil.NewLocalPlacement(builder, p.localAddrSrc)
 	}
 
 	// set placement builder
@@ -169,11 +169,13 @@ loop:
 				}
 
 				if err := streamer.stream(p.ctx, p.ch); err != nil {
-					util.LogServiceError(p.log, "SEARCH", addr, err)
+					svcutil.LogServiceError(p.log, "SEARCH", addr, err)
 				}
 			}); err != nil {
 				wg.Done()
-				// TODO: log error
+
+				svcutil.LogWorkerPoolError(p.log, "SEARCH", err)
+
 				break loop
 			}
 		}

pkg/services/object/util/log.go

@@ -14,3 +14,11 @@ func LogServiceError(l *logger.Logger, req string, node *network.Address, err er
 		zap.String("error", err.Error()),
 	)
 }
+
+// LogWorkerPoolError writes debug error message of object worker pool to provided logger.
+func LogWorkerPoolError(l *logger.Logger, req string, err error) {
+	l.Debug("could not push task to worker pool",
+		zap.String("request", req),
+		zap.String("error", err.Error()),
+	)
+}