From 4dd530e956b3dc788fc06492b7be5d8832157d54 Mon Sep 17 00:00:00 2001
From: Travis <travis@pilosa.com>
Date: Fri, 7 Feb 2020 14:07:02 -0600
Subject: [PATCH] open bolt translate store partitions asynchronously

---
 index.go | 24 +++++++++++++++++++-----
 1 file changed, 19 insertions(+), 5 deletions(-)

diff --git a/index.go b/index.go
index 65609cb3e..51e062823 100644
--- a/index.go
+++ b/index.go
@@ -165,12 +165,26 @@ func (i *Index) Open() (err error) {
 	}
 
 	i.logger.Debugf("open translate store for index: %s", i.name)
+
+	var g errgroup.Group
+	var mu sync.Mutex
 	for partitionID := 0; partitionID < i.partitionN; partitionID++ {
-		store, err := i.OpenTranslateStore(i.TranslateStorePath(partitionID), i.name, "", partitionID, i.partitionN)
-		if err != nil {
-			return errors.Wrap(err, "opening index translate store")
-		}
-		i.translateStores[partitionID] = store
+		partitionID := partitionID
+
+		g.Go(func() error {
+			store, err := i.OpenTranslateStore(i.TranslateStorePath(partitionID), i.name, "", partitionID, i.partitionN)
+			if err != nil {
+				return errors.Wrapf(err, "opening index translate store: partition=%d", partitionID)
+			}
+
+			mu.Lock()
+			defer mu.Unlock()
+			i.translateStores[partitionID] = store
+			return nil
+		})
+	}
+	if err := g.Wait(); err != nil {
+		return err
 	}
 
 	return nil