[8.4](backport #1896) Catch error in waitBulkAction. Add bulk.WithRetryOnConflict(3) in multiple places.

CHANGELOG.next.asciidoc

@@ -8,6 +8,7 @@
 - Add error detail to catch-all HTTP error response. {pull}1854[1854]
 - Update apikey.cache_hit log field name to match convention. {pull}1900[1900]
 - LoadServerLimits will not overwrite specified limits when loading default/agent number specified values. {issue}1841[1841] {pull}1912[1912]
+- Fix issue were errors where being ignored written to elasticsearch. {pull}1896[1896]
 
 ==== New Features
 

internal/pkg/api/handleAck.go

@@ -407,7 +407,7 @@ func (ack *AckT) handleUnenroll(ctx context.Context, zlog zerolog.Logger, agent
 		return errors.Wrap(err, "handleUnenroll marshal")
 	}
 
-	if err = ack.bulk.Update(ctx, dl.FleetAgents, agent.Id, body, bulk.WithRefresh()); err != nil {
+	if err = ack.bulk.Update(ctx, dl.FleetAgents, agent.Id, body, bulk.WithRefresh(), bulk.WithRetryOnConflict(3)); err != nil {
 		return errors.Wrap(err, "handleUnenroll update")
 	}
 
@@ -428,7 +428,7 @@ func (ack *AckT) handleUpgrade(ctx context.Context, zlog zerolog.Logger, agent *
 		return errors.Wrap(err, "handleUpgrade marshal")
 	}
 
-	if err = ack.bulk.Update(ctx, dl.FleetAgents, agent.Id, body, bulk.WithRefresh()); err != nil {
+	if err = ack.bulk.Update(ctx, dl.FleetAgents, agent.Id, body, bulk.WithRefresh(), bulk.WithRetryOnConflict(3)); err != nil {
 		return errors.Wrap(err, "handleUpgrade update")
 	}
 

internal/pkg/bulk/opBulk.go

@@ -13,6 +13,8 @@ import (
 	"github.com/elastic/go-elasticsearch/v7/esapi"
 	"github.com/mailru/easyjson"
 	"github.com/rs/zerolog/log"
+
+	"github.com/elastic/fleet-server/v7/internal/pkg/es"
 )
 
 func (b *Bulker) Create(ctx context.Context, index, id string, body []byte, opts ...Opt) (string, error) {
@@ -73,6 +75,9 @@ func (b *Bulker) waitBulkAction(ctx context.Context, action actionT, index, id s
 	if !ok {
 		return nil, fmt.Errorf("unable to cast to *BulkIndexerResponseItem, detected type %T", resp.data)
 	}
+	if err := es.TranslateError(r.Status, r.Error); err != nil {
+		return nil, err
+	}
 	return r, nil
 }
 

internal/pkg/coordinator/monitor.go

@@ -560,7 +560,7 @@ func unenrollAgent(ctx context.Context, zlog zerolog.Logger, bulker bulk.Bulk, a
 			return err
 		}
 	}
-	if err = bulker.Update(ctx, agentsIndex, agent.Id, body, bulk.WithRefresh()); err != nil {
+	if err = bulker.Update(ctx, agentsIndex, agent.Id, body, bulk.WithRefresh(), bulk.WithRetryOnConflict(3)); err != nil {
 		zlog.Error().Err(err).Msg("Fail unenrollAgent record update")
 	}
 

internal/pkg/dl/servers.go

@@ -55,5 +55,5 @@ func EnsureServer(ctx context.Context, bulker bulk.Bulk, version string, agent m
 	if err != nil {
 		return err
 	}
-	return bulker.Update(ctx, o.indexName, agent.ID, data)
+	return bulker.Update(ctx, o.indexName, agent.ID, data, bulk.WithRefresh(), bulk.WithRetryOnConflict(3))
 }