X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/dfb9598282b677ead60f91c14f5e96405735d42f..18b6c49d69b8264273150cd29b2bf0b57c54e2a8:/doc/install/configure-s3-object-storage.html.textile.liquid

diff --git a/doc/install/configure-s3-object-storage.html.textile.liquid b/doc/install/configure-s3-object-storage.html.textile.liquid
index 9708ea5cd1..76a2f3ab57 100644
--- a/doc/install/configure-s3-object-storage.html.textile.liquid
+++ b/doc/install/configure-s3-object-storage.html.textile.liquid
@@ -25,8 +25,8 @@ Volumes are configured in the @Volumes@ section of the cluster configuration fil
           # If the AccessViaHosts section is empty or omitted, all
           # keepstore servers will have read/write access to the
           # volume.
-          "http://<span class="userinput">keep0.ClusterID.example.com</span>:25107/": {}
-          "http://<span class="userinput">keep1.ClusterID.example.com</span>:25107/": {ReadOnly: true}
+          "http://<span class="userinput">keep0.ClusterID.example.com</span>:25107": {}
+          "http://<span class="userinput">keep1.ClusterID.example.com</span>:25107": {ReadOnly: true}
 
         Driver: <span class="userinput">S3</span>
         DriverParameters:
@@ -59,6 +59,14 @@ Volumes are configured in the @Volumes@ section of the cluster configuration fil
           # declaration.
           LocationConstraint: false
 
+          # Use V2 signatures instead of the default V4. Amazon S3
+          # supports V4 signatures in all regions, but this option
+          # might be needed for other S3-compatible services.
+          V2Signature: false
+
+          # Use the AWS S3 v2 Go driver instead of the goamz driver.
+          UseAWSS3v2Driver: false
+
           # Requested page size for "list bucket contents" requests.
           IndexPageSize: 1000
 
@@ -89,3 +97,9 @@ Volumes are configured in the @Volumes@ section of the cluster configuration fil
         # classes" in the "Admin" section of doc.arvados.org.
         StorageClasses: null
 </code></pre></notextile>
+
+Two S3 drivers are available. Historically, Arvados has used the @goamz@ driver to talk to S3-compatible services. More recently, support for the @aws-sdk-go-v2@ driver was added. This driver can be activated by setting the @UseAWSS3v2Driver@ flag to @true@.
+
+The @aws-sdk-go-v2@ does not support the old S3 v2 signing algorithm. This will not affect interacting with AWS S3, but it might be an issue when Keep is backed by a very old version of a third party S3-compatible service.
+
+The @aws-sdk-go-v2@ driver can improve read performance by 50-100% over the @goamz@ driver, but it has not had as much production use. See the "wiki":https://dev.arvados.org/projects/arvados/wiki/Keep_real_world_performance_numbers for details.