[14/50] [abbrv] hadoop git commit: YARN-2801. Add documentation for node labels feature. Contributed by Wangda Tan and Naganarasimha G R.

2015-09-07 Thread vvasudev 
YARN-2801. Add documentation for node labels feature. Contributed by Wangda Tan 
and Naganarasimha G R.


Project: http://git-wip-us.apache.org/repos/asf/hadoop/repo
Commit: http://git-wip-us.apache.org/repos/asf/hadoop/commit/faa38e1a
Tree: http://git-wip-us.apache.org/repos/asf/hadoop/tree/faa38e1a
Diff: http://git-wip-us.apache.org/repos/asf/hadoop/diff/faa38e1a

Branch: refs/heads/YARN-3926
Commit: faa38e1aa49907254bf981662a8aeb5dc52e75e3
Parents: bf669b6
Author: Tsuyoshi Ozawa 
Authored: Tue Sep 1 17:54:14 2015 +0900
Committer: Tsuyoshi Ozawa 
Committed: Tue Sep 1 17:54:49 2015 +0900

--
 hadoop-project/src/site/site.xml|   1 +
 hadoop-yarn-project/CHANGES.txt |   3 +
 .../src/site/markdown/NodeLabel.md  | 140 +++
 3 files changed, 144 insertions(+)
--


http://git-wip-us.apache.org/repos/asf/hadoop/blob/faa38e1a/hadoop-project/src/site/site.xml
--
diff --git a/hadoop-project/src/site/site.xml b/hadoop-project/src/site/site.xml
index ee0dfcd..272ea7b 100644
--- a/hadoop-project/src/site/site.xml
+++ b/hadoop-project/src/site/site.xml
@@ -121,6 +121,7 @@
   
   
   
+  
   
   
   

http://git-wip-us.apache.org/repos/asf/hadoop/blob/faa38e1a/hadoop-yarn-project/CHANGES.txt
--
diff --git a/hadoop-yarn-project/CHANGES.txt b/hadoop-yarn-project/CHANGES.txt
index 999654d..e2b1307 100644
--- a/hadoop-yarn-project/CHANGES.txt
+++ b/hadoop-yarn-project/CHANGES.txt
@@ -827,6 +827,9 @@ Release 2.7.2 - UNRELEASED
 YARN-4092. Fixed UI redirection to print useful messages when both RMs are
 in standby mode. (Xuan Gong via jianhe)
 
+YARN-2801. Add documentation for node labels feature. (Wangda Tan and 
Naganarasimha 
+G R  via ozawa)
+
   OPTIMIZATIONS
 
   BUG FIXES

http://git-wip-us.apache.org/repos/asf/hadoop/blob/faa38e1a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/NodeLabel.md
--
diff --git 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/NodeLabel.md
 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/NodeLabel.md
new file mode 100644
index 000..87019cd
--- /dev/null
+++ 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/NodeLabel.md
@@ -0,0 +1,140 @@
+
+
+YARN Node Labels
+===
+
+# Overview
+Node label is a way to group nodes with similar characteristics and 
applications can specify where to run.
+
+Now we only support node partition, which is:
+
+* One node can have only one node partition, so a cluster is partitioned to 
several disjoint sub-clusters by node partitions. By default, nodes belong to 
DEFAULT partition (partition="")
+* User need to configure how much resources of each partition can be used by 
different queues. For more detail, please refer next section.
+* There are two kinds of node partitions:
+* Exclusive: containers will be allocated to nodes with exactly match node 
partition. (e.g. asking partition=“x” will be allocated to node with 
partition=“x”, asking DEFAULT partition will be allocated to DEFAULT 
partition nodes).
+* Non-exclusive: if a partition is non-exclusive, it shares idle resource 
to container requesting DEFAULT partition.
+
+User can specify set of node labels which can be accessed by each queue, one 
application can only use subset of node labels that can be accessed by the 
queue which contains the application.
+
+# Features
+The ```Node Labels``` supports the following features for now:
+
+* Partition cluster - each node can be assigned one label, so the cluster will 
be divided to several smaller disjoint partitions.
+* ACL of node-labels on queues - user can set accessible node labels on each 
queue so only some nodes can only be accessed by specific queues.
+* Specify percentage of resource of a partition which can be accessed by a 
queue - user can set percentage like: queue A can access 30% of resources on 
nodes with label=hbase. Such percentage setting will be consistent with 
existing resource manager
+* Specify required Node Label in resource request, it will only be allocated 
when node has the same label. If no node label requirement specified, such 
Resource Request will only be allocated on nodes belong to DEFAULT partition.
+* Operability
+* Node labels and node labels mapping can be recovered across RM restart
+* Update node labels - admin can update labels on nodes and labels on 
queues
+  when RM is running
+
+# Configuration
+## Setting up ```ResourceManager``` to enable ```Node Labels```:
+
+Setup following properties in ```yarn-site.xml```
+

[13/50] [abbrv] hadoop git commit: YARN-2801. Add documentation for node labels feature. Contributed by Wangda Tan and Naganarasimha G R.

2015-09-04 Thread wangda 
YARN-2801. Add documentation for node labels feature. Contributed by Wangda Tan 
and Naganarasimha G R.


Project: http://git-wip-us.apache.org/repos/asf/hadoop/repo
Commit: http://git-wip-us.apache.org/repos/asf/hadoop/commit/faa38e1a
Tree: http://git-wip-us.apache.org/repos/asf/hadoop/tree/faa38e1a
Diff: http://git-wip-us.apache.org/repos/asf/hadoop/diff/faa38e1a

Branch: refs/heads/YARN-1197
Commit: faa38e1aa49907254bf981662a8aeb5dc52e75e3
Parents: bf669b6
Author: Tsuyoshi Ozawa 
Authored: Tue Sep 1 17:54:14 2015 +0900
Committer: Tsuyoshi Ozawa 
Committed: Tue Sep 1 17:54:49 2015 +0900

--
 hadoop-project/src/site/site.xml|   1 +
 hadoop-yarn-project/CHANGES.txt |   3 +
 .../src/site/markdown/NodeLabel.md  | 140 +++
 3 files changed, 144 insertions(+)
--


http://git-wip-us.apache.org/repos/asf/hadoop/blob/faa38e1a/hadoop-project/src/site/site.xml
--
diff --git a/hadoop-project/src/site/site.xml b/hadoop-project/src/site/site.xml
index ee0dfcd..272ea7b 100644
--- a/hadoop-project/src/site/site.xml
+++ b/hadoop-project/src/site/site.xml
@@ -121,6 +121,7 @@
   
   
   
+  
   
   
   

http://git-wip-us.apache.org/repos/asf/hadoop/blob/faa38e1a/hadoop-yarn-project/CHANGES.txt
--
diff --git a/hadoop-yarn-project/CHANGES.txt b/hadoop-yarn-project/CHANGES.txt
index 999654d..e2b1307 100644
--- a/hadoop-yarn-project/CHANGES.txt
+++ b/hadoop-yarn-project/CHANGES.txt
@@ -827,6 +827,9 @@ Release 2.7.2 - UNRELEASED
 YARN-4092. Fixed UI redirection to print useful messages when both RMs are
 in standby mode. (Xuan Gong via jianhe)
 
+YARN-2801. Add documentation for node labels feature. (Wangda Tan and 
Naganarasimha 
+G R  via ozawa)
+
   OPTIMIZATIONS
 
   BUG FIXES

http://git-wip-us.apache.org/repos/asf/hadoop/blob/faa38e1a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/NodeLabel.md
--
diff --git 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/NodeLabel.md
 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/NodeLabel.md
new file mode 100644
index 000..87019cd
--- /dev/null
+++ 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/NodeLabel.md
@@ -0,0 +1,140 @@
+
+
+YARN Node Labels
+===
+
+# Overview
+Node label is a way to group nodes with similar characteristics and 
applications can specify where to run.
+
+Now we only support node partition, which is:
+
+* One node can have only one node partition, so a cluster is partitioned to 
several disjoint sub-clusters by node partitions. By default, nodes belong to 
DEFAULT partition (partition="")
+* User need to configure how much resources of each partition can be used by 
different queues. For more detail, please refer next section.
+* There are two kinds of node partitions:
+* Exclusive: containers will be allocated to nodes with exactly match node 
partition. (e.g. asking partition=“x” will be allocated to node with 
partition=“x”, asking DEFAULT partition will be allocated to DEFAULT 
partition nodes).
+* Non-exclusive: if a partition is non-exclusive, it shares idle resource 
to container requesting DEFAULT partition.
+
+User can specify set of node labels which can be accessed by each queue, one 
application can only use subset of node labels that can be accessed by the 
queue which contains the application.
+
+# Features
+The ```Node Labels``` supports the following features for now:
+
+* Partition cluster - each node can be assigned one label, so the cluster will 
be divided to several smaller disjoint partitions.
+* ACL of node-labels on queues - user can set accessible node labels on each 
queue so only some nodes can only be accessed by specific queues.
+* Specify percentage of resource of a partition which can be accessed by a 
queue - user can set percentage like: queue A can access 30% of resources on 
nodes with label=hbase. Such percentage setting will be consistent with 
existing resource manager
+* Specify required Node Label in resource request, it will only be allocated 
when node has the same label. If no node label requirement specified, such 
Resource Request will only be allocated on nodes belong to DEFAULT partition.
+* Operability
+* Node labels and node labels mapping can be recovered across RM restart
+* Update node labels - admin can update labels on nodes and labels on 
queues
+  when RM is running
+
+# Configuration
+## Setting up ```ResourceManager``` to enable ```Node Labels```:
+
+Setup following properties in ```yarn-site.xml```
+

hadoop git commit: YARN-2801. Add documentation for node labels feature. Contributed by Wangda Tan and Naganarasimha G R.

2015-09-01 Thread ozawa 
Repository: hadoop
Updated Branches:
  refs/heads/branch-2.7 f44ed4f4b -> 1b5bf5800


YARN-2801. Add documentation for node labels feature. Contributed by Wangda Tan 
and Naganarasimha G R.

(cherry picked from commit faa38e1aa49907254bf981662a8aeb5dc52e75e3)


Project: http://git-wip-us.apache.org/repos/asf/hadoop/repo
Commit: http://git-wip-us.apache.org/repos/asf/hadoop/commit/1b5bf580
Tree: http://git-wip-us.apache.org/repos/asf/hadoop/tree/1b5bf580
Diff: http://git-wip-us.apache.org/repos/asf/hadoop/diff/1b5bf580

Branch: refs/heads/branch-2.7
Commit: 1b5bf58001d68e83534d4fc93959cc2c42540629
Parents: f44ed4f
Author: Tsuyoshi Ozawa 
Authored: Tue Sep 1 17:54:14 2015 +0900
Committer: Tsuyoshi Ozawa 
Committed: Tue Sep 1 17:56:08 2015 +0900

--
 hadoop-project/src/site/site.xml|   1 +
 hadoop-yarn-project/CHANGES.txt |   3 +
 .../src/site/markdown/NodeLabel.md  | 140 +++
 3 files changed, 144 insertions(+)
--


http://git-wip-us.apache.org/repos/asf/hadoop/blob/1b5bf580/hadoop-project/src/site/site.xml
--
diff --git a/hadoop-project/src/site/site.xml b/hadoop-project/src/site/site.xml
index 9fa7e4d..df93945 100644
--- a/hadoop-project/src/site/site.xml
+++ b/hadoop-project/src/site/site.xml
@@ -120,6 +120,7 @@
   
   
   
+  
   
   
   

http://git-wip-us.apache.org/repos/asf/hadoop/blob/1b5bf580/hadoop-yarn-project/CHANGES.txt
--
diff --git a/hadoop-yarn-project/CHANGES.txt b/hadoop-yarn-project/CHANGES.txt
index e07c8ae..ee9b66a 100644
--- a/hadoop-yarn-project/CHANGES.txt
+++ b/hadoop-yarn-project/CHANGES.txt
@@ -20,6 +20,9 @@ Release 2.7.2 - UNRELEASED
 YARN-4092. Fixed UI redirection to print useful messages when both RMs are
 in standby mode. (Xuan Gong via jianhe)
 
+YARN-2801. Add documentation for node labels feature. (Wangda Tan and 
Naganarasimha 
+G R  via ozawa)
+
   OPTIMIZATIONS
 
   BUG FIXES

http://git-wip-us.apache.org/repos/asf/hadoop/blob/1b5bf580/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/NodeLabel.md
--
diff --git 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/NodeLabel.md
 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/NodeLabel.md
new file mode 100644
index 000..87019cd
--- /dev/null
+++ 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/NodeLabel.md
@@ -0,0 +1,140 @@
+
+
+YARN Node Labels
+===
+
+# Overview
+Node label is a way to group nodes with similar characteristics and 
applications can specify where to run.
+
+Now we only support node partition, which is:
+
+* One node can have only one node partition, so a cluster is partitioned to 
several disjoint sub-clusters by node partitions. By default, nodes belong to 
DEFAULT partition (partition="")
+* User need to configure how much resources of each partition can be used by 
different queues. For more detail, please refer next section.
+* There are two kinds of node partitions:
+* Exclusive: containers will be allocated to nodes with exactly match node 
partition. (e.g. asking partition=“x” will be allocated to node with 
partition=“x”, asking DEFAULT partition will be allocated to DEFAULT 
partition nodes).
+* Non-exclusive: if a partition is non-exclusive, it shares idle resource 
to container requesting DEFAULT partition.
+
+User can specify set of node labels which can be accessed by each queue, one 
application can only use subset of node labels that can be accessed by the 
queue which contains the application.
+
+# Features
+The ```Node Labels``` supports the following features for now:
+
+* Partition cluster - each node can be assigned one label, so the cluster will 
be divided to several smaller disjoint partitions.
+* ACL of node-labels on queues - user can set accessible node labels on each 
queue so only some nodes can only be accessed by specific queues.
+* Specify percentage of resource of a partition which can be accessed by a 
queue - user can set percentage like: queue A can access 30% of resources on 
nodes with label=hbase. Such percentage setting will be consistent with 
existing resource manager
+* Specify required Node Label in resource request, it will only be allocated 
when node has the same label. If no node label requirement specified, such 
Resource Request will only be allocated on nodes belong to DEFAULT partition.
+* Operability
+* Node labels and node labels mapping can be recovered across RM restart
+* Update node labels - admin can update labels on nodes and labels on 
queues
+  when RM is

hadoop git commit: YARN-2801. Add documentation for node labels feature. Contributed by Wangda Tan and Naganarasimha G R.

2015-09-01 Thread ozawa 
Repository: hadoop
Updated Branches:
  refs/heads/trunk bf669b6d9 -> faa38e1aa


YARN-2801. Add documentation for node labels feature. Contributed by Wangda Tan 
and Naganarasimha G R.


Project: http://git-wip-us.apache.org/repos/asf/hadoop/repo
Commit: http://git-wip-us.apache.org/repos/asf/hadoop/commit/faa38e1a
Tree: http://git-wip-us.apache.org/repos/asf/hadoop/tree/faa38e1a
Diff: http://git-wip-us.apache.org/repos/asf/hadoop/diff/faa38e1a

Branch: refs/heads/trunk
Commit: faa38e1aa49907254bf981662a8aeb5dc52e75e3
Parents: bf669b6
Author: Tsuyoshi Ozawa 
Authored: Tue Sep 1 17:54:14 2015 +0900
Committer: Tsuyoshi Ozawa 
Committed: Tue Sep 1 17:54:49 2015 +0900

--
 hadoop-project/src/site/site.xml|   1 +
 hadoop-yarn-project/CHANGES.txt |   3 +
 .../src/site/markdown/NodeLabel.md  | 140 +++
 3 files changed, 144 insertions(+)
--


http://git-wip-us.apache.org/repos/asf/hadoop/blob/faa38e1a/hadoop-project/src/site/site.xml
--
diff --git a/hadoop-project/src/site/site.xml b/hadoop-project/src/site/site.xml
index ee0dfcd..272ea7b 100644
--- a/hadoop-project/src/site/site.xml
+++ b/hadoop-project/src/site/site.xml
@@ -121,6 +121,7 @@
   
   
   
+  
   
   
   

http://git-wip-us.apache.org/repos/asf/hadoop/blob/faa38e1a/hadoop-yarn-project/CHANGES.txt
--
diff --git a/hadoop-yarn-project/CHANGES.txt b/hadoop-yarn-project/CHANGES.txt
index 999654d..e2b1307 100644
--- a/hadoop-yarn-project/CHANGES.txt
+++ b/hadoop-yarn-project/CHANGES.txt
@@ -827,6 +827,9 @@ Release 2.7.2 - UNRELEASED
 YARN-4092. Fixed UI redirection to print useful messages when both RMs are
 in standby mode. (Xuan Gong via jianhe)
 
+YARN-2801. Add documentation for node labels feature. (Wangda Tan and 
Naganarasimha 
+G R  via ozawa)
+
   OPTIMIZATIONS
 
   BUG FIXES

http://git-wip-us.apache.org/repos/asf/hadoop/blob/faa38e1a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/NodeLabel.md
--
diff --git 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/NodeLabel.md
 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/NodeLabel.md
new file mode 100644
index 000..87019cd
--- /dev/null
+++ 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/NodeLabel.md
@@ -0,0 +1,140 @@
+
+
+YARN Node Labels
+===
+
+# Overview
+Node label is a way to group nodes with similar characteristics and 
applications can specify where to run.
+
+Now we only support node partition, which is:
+
+* One node can have only one node partition, so a cluster is partitioned to 
several disjoint sub-clusters by node partitions. By default, nodes belong to 
DEFAULT partition (partition="")
+* User need to configure how much resources of each partition can be used by 
different queues. For more detail, please refer next section.
+* There are two kinds of node partitions:
+* Exclusive: containers will be allocated to nodes with exactly match node 
partition. (e.g. asking partition=“x” will be allocated to node with 
partition=“x”, asking DEFAULT partition will be allocated to DEFAULT 
partition nodes).
+* Non-exclusive: if a partition is non-exclusive, it shares idle resource 
to container requesting DEFAULT partition.
+
+User can specify set of node labels which can be accessed by each queue, one 
application can only use subset of node labels that can be accessed by the 
queue which contains the application.
+
+# Features
+The ```Node Labels``` supports the following features for now:
+
+* Partition cluster - each node can be assigned one label, so the cluster will 
be divided to several smaller disjoint partitions.
+* ACL of node-labels on queues - user can set accessible node labels on each 
queue so only some nodes can only be accessed by specific queues.
+* Specify percentage of resource of a partition which can be accessed by a 
queue - user can set percentage like: queue A can access 30% of resources on 
nodes with label=hbase. Such percentage setting will be consistent with 
existing resource manager
+* Specify required Node Label in resource request, it will only be allocated 
when node has the same label. If no node label requirement specified, such 
Resource Request will only be allocated on nodes belong to DEFAULT partition.
+* Operability
+* Node labels and node labels mapping can be recovered across RM restart
+* Update node labels - admin can update labels on nodes and labels on 
queues
+  when RM is running
+
+# Configuration
+## Setting up ```ResourceManager``` to enable

hadoop git commit: YARN-2801. Add documentation for node labels feature. Contributed by Wangda Tan and Naganarasimha G R.

2015-09-01 Thread ozawa 
Repository: hadoop
Updated Branches:
  refs/heads/branch-2 855e0f8b0 -> d3d65f62b


YARN-2801. Add documentation for node labels feature. Contributed by Wangda Tan 
and Naganarasimha G R.

(cherry picked from commit faa38e1aa49907254bf981662a8aeb5dc52e75e3)


Project: http://git-wip-us.apache.org/repos/asf/hadoop/repo
Commit: http://git-wip-us.apache.org/repos/asf/hadoop/commit/d3d65f62
Tree: http://git-wip-us.apache.org/repos/asf/hadoop/tree/d3d65f62
Diff: http://git-wip-us.apache.org/repos/asf/hadoop/diff/d3d65f62

Branch: refs/heads/branch-2
Commit: d3d65f62b39dfe3f4d0efa47e5129e2aa3033d5e
Parents: 855e0f8
Author: Tsuyoshi Ozawa 
Authored: Tue Sep 1 17:54:14 2015 +0900
Committer: Tsuyoshi Ozawa 
Committed: Tue Sep 1 17:55:53 2015 +0900

--
 hadoop-project/src/site/site.xml|   1 +
 hadoop-yarn-project/CHANGES.txt |   3 +
 .../src/site/markdown/NodeLabel.md  | 140 +++
 3 files changed, 144 insertions(+)
--


http://git-wip-us.apache.org/repos/asf/hadoop/blob/d3d65f62/hadoop-project/src/site/site.xml
--
diff --git a/hadoop-project/src/site/site.xml b/hadoop-project/src/site/site.xml
index 0e2ab2e..9b888de 100644
--- a/hadoop-project/src/site/site.xml
+++ b/hadoop-project/src/site/site.xml
@@ -120,6 +120,7 @@
   
   
   
+  
   
   
   

http://git-wip-us.apache.org/repos/asf/hadoop/blob/d3d65f62/hadoop-yarn-project/CHANGES.txt
--
diff --git a/hadoop-yarn-project/CHANGES.txt b/hadoop-yarn-project/CHANGES.txt
index c19bd7b..f8c6c96 100644
--- a/hadoop-yarn-project/CHANGES.txt
+++ b/hadoop-yarn-project/CHANGES.txt
@@ -775,6 +775,9 @@ Release 2.7.2 - UNRELEASED
 YARN-4092. Fixed UI redirection to print useful messages when both RMs are
 in standby mode. (Xuan Gong via jianhe)
 
+YARN-2801. Add documentation for node labels feature. (Wangda Tan and 
Naganarasimha 
+G R  via ozawa)
+
   OPTIMIZATIONS
 
   BUG FIXES

http://git-wip-us.apache.org/repos/asf/hadoop/blob/d3d65f62/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/NodeLabel.md
--
diff --git 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/NodeLabel.md
 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/NodeLabel.md
new file mode 100644
index 000..87019cd
--- /dev/null
+++ 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/NodeLabel.md
@@ -0,0 +1,140 @@
+
+
+YARN Node Labels
+===
+
+# Overview
+Node label is a way to group nodes with similar characteristics and 
applications can specify where to run.
+
+Now we only support node partition, which is:
+
+* One node can have only one node partition, so a cluster is partitioned to 
several disjoint sub-clusters by node partitions. By default, nodes belong to 
DEFAULT partition (partition="")
+* User need to configure how much resources of each partition can be used by 
different queues. For more detail, please refer next section.
+* There are two kinds of node partitions:
+* Exclusive: containers will be allocated to nodes with exactly match node 
partition. (e.g. asking partition=“x” will be allocated to node with 
partition=“x”, asking DEFAULT partition will be allocated to DEFAULT 
partition nodes).
+* Non-exclusive: if a partition is non-exclusive, it shares idle resource 
to container requesting DEFAULT partition.
+
+User can specify set of node labels which can be accessed by each queue, one 
application can only use subset of node labels that can be accessed by the 
queue which contains the application.
+
+# Features
+The ```Node Labels``` supports the following features for now:
+
+* Partition cluster - each node can be assigned one label, so the cluster will 
be divided to several smaller disjoint partitions.
+* ACL of node-labels on queues - user can set accessible node labels on each 
queue so only some nodes can only be accessed by specific queues.
+* Specify percentage of resource of a partition which can be accessed by a 
queue - user can set percentage like: queue A can access 30% of resources on 
nodes with label=hbase. Such percentage setting will be consistent with 
existing resource manager
+* Specify required Node Label in resource request, it will only be allocated 
when node has the same label. If no node label requirement specified, such 
Resource Request will only be allocated on nodes belong to DEFAULT partition.
+* Operability
+* Node labels and node labels mapping can be recovered across RM restart
+* Update node labels - admin can update labels on nodes and labels on 
queues
+  when RM is