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new 811441d5bc4 HDFS-16951. Add description of GETSERVERDEFAULTS to
WebHDFS doc (#5491)
811441d5bc4 is described below
commit 811441d5bc4fc6f788a277558274160bf4c242a9
Author: zhtttylz <hualon...@hotmail.com>
AuthorDate: Sat Apr 1 18:18:20 2023 +0800
HDFS-16951. Add description of GETSERVERDEFAULTS to WebHDFS doc (#5491)
Co-authored-by: Zhtttylz <hualon...@hotmail.com>
Reviewed-by: Shilun Fan <slfan1...@apache.org>
Signed-off-by: Shilun Fan <slfan1...@apache.org>
---
.../hadoop-hdfs/src/site/markdown/WebHDFS.md | 48 ++++++++++++++++++++++
1 file changed, 48 insertions(+)
diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/WebHDFS.md
b/hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/WebHDFS.md
index 46b5613fe72..5e5924ad36e 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/WebHDFS.md
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/WebHDFS.md
@@ -57,6 +57,7 @@ The HTTP REST API supports the complete
[FileSystem](../../api/org/apache/hadoop
* [`GETSNAPSHOTLIST`](#Get_Snapshot_List)
* [`GETFILEBLOCKLOCATIONS`](#Get_File_Block_Locations) (see
[FileSystem](../../api/org/apache/hadoop/fs/FileSystem.html).getFileBlockLocations)
* [`GETECPOLICY`](#Get_EC_Policy) (see
[HDFSErasureCoding](./HDFSErasureCoding.html#Administrative_commands).getErasureCodingPolicy)
+ * [`GETSERVERDEFAULTS`](#Get_Server_Defaults) (see
[FileSystem](../../api/org/apache/hadoop/fs/FileSystem.html).getServerDefaults)
* HTTP PUT
* [`CREATE`](#Create_and_Write_to_a_File) (see
[FileSystem](../../api/org/apache/hadoop/fs/FileSystem.html).create)
* [`MKDIRS`](#Make_a_Directory) (see
[FileSystem](../../api/org/apache/hadoop/fs/FileSystem.html).mkdirs)
@@ -1109,6 +1110,35 @@ See also:
[FileSystem](../../api/org/apache/hadoop/fs/FileSystem.html).getAclSta
See also: [FileSystem](../../api/org/apache/hadoop/fs/FileSystem.html).access
+### Get Server Defaults
+
+* Submit a HTTP GET request.
+
+ curl -i "http://<HOST>:<PORT>/webhdfs/v1/<PATH>?op=GETSERVERDEFAULTS"
+
+ The client receives a response with a [`ServerDefaults` JSON
object](Server_Defaults_JSON_Schema):
+
+ HTTP/1.1 200 OK
+ Content-Type: application/json
+ Transfer-Encoding: chunked
+
+ {
+ "FsServerDefaults": {
+ "replication": 3,
+ "encryptDataTransfer": "false",
+ "defaultStoragePolicyId":7,
+ "writePacketSize": 65536,
+ "fileBufferSize": 4096,
+ "checksumType": 2,
+ "trashInterval": 10080,
+ "keyProviderUri": "",
+ "blockSize": 134217728,
+ "bytesPerChecksum": 512
+ }
+ }
+
+See also:
[FileSystem](../../api/org/apache/hadoop/fs/FileSystem.html).getServerDefaults
+
Storage Policy Operations
-------------------------
@@ -3042,6 +3072,24 @@ var blockLocationProperties =
}
};
```
+### Server Defaults JSON Schema
+
+```json
+{
+ "FsServerDefaults": {
+ "replication": 3,
+ "encryptDataTransfer": false,
+ "defaultStoragePolicyId": 7,
+ "writePacketSize": 65536,
+ "fileBufferSize": 4096,
+ "checksumType": 2,
+ "trashInterval": 10080,
+ "keyProviderUri": "",
+ "blockSize": 134217728,
+ "bytesPerChecksum": 512
+ }
+}
+```
HTTP Query Parameter Dictionary
-------------------------------
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