Hello, Could anyone please answer my question on the maximum size of a single object on Swift? "Swift 1.7.6-dev documentation >> Large Object Support > Overview" says the default maximum object size is "5GB", however I have successfully uploaded a 5GB+2byte(5368709122 byte) object. It also seems that the source says max file size is 5GB+2byte. (see below) What is this "+ 2" for? Thanks, Keisuke Yamamoto Source code: swift-1.7.4/swift/common/constraints.py https://github.com/openstack/swift/blob/master/swift/common/constraints.py ------------------------swift/common/constraints.py #L35-37--------------------------------------- #: Max file size allowed for objects MAX_FILE_SIZE = constraints_conf_int('max_file_size', 5368709122) # 5 * 1024 * 1024 * 1024 + 2 ^^^ -------------------------------------------------------------------------------------------------- --------------------------------upload example---------------------------------------------------- # ls -l 1_2.txt -rw-r--r-- 1 root root 5368709122 Sep 10 18:48 1_2.txt # curl -v -X PUT -H "X-Auth-Token: AUTH_xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" http://xxx.xxx.xxx.xxx/v1.0/AUTH_ACCOUNT0/bucket0/object_1_2 -T 1_2.txt * About to connect() to xxx.xxx.xxx.xxx port 8080 * Trying xxx.xxx.xxx.xxx... connected * Connected to xxx.xxx.xxx.xxx (xxx.xxx.xxx.xxx) port 8080 > PUT /v1.0/AUTH_ACCOUNT0/bucket0/object_1_2 HTTP/1.1 > User-Agent: curl/7.15.5 (x86_64-redhat-linux-gnu) libcurl/7.15.5 OpenSSL/0.9.8b zlib/1.2.3 libidn/0.6.5 > Host: xxx.xxx.xxx.xxx:8080 > Accept: */* > X-Auth-Token: AUTH_xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx > Content-Length: 5368709122 > Expect: 100-continue > < HTTP/1.1 100 Continue HTTP/1.1 201 Created < Content-Length: 118 < Content-Type: text/html; charset=UTF-8 < Etag: 255a618b796bd4ee3f21d6f432357d81 < Last-Modified: Mon, 10 Sep 2012 10:37:06 GMT < X-Trans-Id: xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx < Date: Mon, 10 Sep 2012 10:59:20 GMT 201 Created

201 Created

Connection #0 to host xxx.xxx.xxx.xxx left intact * Closing connection #0 -------------------------------------------------------------------------------------------------

When	Who	Action	New State
2012-11-22	John Dickinson	Answer	Answered
2012-11-29	Keisuke Yamamoto	Comment	Answered
2012-11-29	Keisuke Yamamoto	Confirm	Solved

OpenStack Object Storage (swift)

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