Make S3 partSize a setting

services/filestore/app/js/S3Persistor.js

@@ -96,7 +96,7 @@ async function sendStream(bucketName, key, readStream, sourceMd5) {
     }
 
     const response = await _getClientForBucket(bucketName)
-      .upload(uploadOptions, { partSize: 100 * 1024 * 1024 })
+      .upload(uploadOptions, { partSize: settings.filestore.s3.partSize })
       .promise()
     let destMd5 = _md5FromResponse(response)
     if (!destMd5) {

services/filestore/config/settings.defaults.coffee

@@ -38,6 +38,7 @@ settings =
 				key: process.env['AWS_ACCESS_KEY_ID']
 				secret: process.env['AWS_SECRET_ACCESS_KEY']
 				endpoint: process.env['AWS_S3_ENDPOINT']
+				partSize: process.env['S3_PARTSIZE'] or (100 * 1024 * 1024)
 
 		stores:
 			user_files: process.env['USER_FILES_BUCKET_NAME']

services/filestore/test/acceptance/js/FilestoreTests.js

@@ -57,7 +57,8 @@ const BackendSettings = {
       key: process.env.AWS_ACCESS_KEY_ID,
       secret: process.env.AWS_SECRET_ACCESS_KEY,
       endpoint: process.env.AWS_S3_ENDPOINT,
-      pathStyle: true
+      pathStyle: true,
+      partSize: 100 * 1024 * 1024
     },
     stores: {
       user_files: process.env.AWS_S3_USER_FILES_BUCKET_NAME,
@@ -71,7 +72,8 @@ const BackendSettings = {
       key: process.env.AWS_ACCESS_KEY_ID,
       secret: process.env.AWS_SECRET_ACCESS_KEY,
       endpoint: process.env.AWS_S3_ENDPOINT,
-      pathStyle: true
+      pathStyle: true,
+      partSize: 100 * 1024 * 1024
     },
     stores: {
       user_files: process.env.AWS_S3_USER_FILES_BUCKET_NAME,
@@ -102,7 +104,8 @@ const BackendSettings = {
       key: process.env.AWS_ACCESS_KEY_ID,
       secret: process.env.AWS_SECRET_ACCESS_KEY,
       endpoint: process.env.AWS_S3_ENDPOINT,
-      pathStyle: true
+      pathStyle: true,
+      partSize: 100 * 1024 * 1024
     },
     stores: {
       user_files: Path.resolve(__dirname, '../../../user_files'),

services/filestore/test/unit/js/S3PersistorTests.js

@@ -53,7 +53,8 @@ describe('S3PersistorTests', function() {
         backend: 's3',
         s3: {
           secret: defaultS3Secret,
-          key: defaultS3Key
+          key: defaultS3Key,
+          partSize: 100 * 1024 * 1024
         },
         stores: {
           user_files: 'sl_user_files'