Preparing hbase release 2.4.11RC1; tagging and updates to CHANGES.md and RELEASENOTES.md

Signed-off-by: Andrew Purtell <apurtell@apache.org>
diff --git a/CHANGES.md b/CHANGES.md
index 3be7be5..96d8ab1 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -28,15 +28,21 @@
 
 | JIRA | Summary | Priority | Component |
 |:---- |:---- | :--- |:---- |
+| [HBASE-26828](https://issues.apache.org/jira/browse/HBASE-26828) | Increase the concurrency when running UTs in pre commit job |  Major | jenkins, test |
+| [HBASE-26833](https://issues.apache.org/jira/browse/HBASE-26833) | Avoid waiting to clear buffer usage of ReplicationSourceShipper when aborting the RS |  Major | regionserver, Replication |
+| [HBASE-26835](https://issues.apache.org/jira/browse/HBASE-26835) | Rewrite TestLruAdaptiveBlockCache to make it more stable |  Major | test |
 | [HBASE-26830](https://issues.apache.org/jira/browse/HBASE-26830) | Rewrite TestLruBlockCache to make it more stable |  Major | test |
+| [HBASE-26552](https://issues.apache.org/jira/browse/HBASE-26552) | Introduce retry to logroller to avoid abort |  Major | wal |
 | [HBASE-26792](https://issues.apache.org/jira/browse/HBASE-26792) | Implement ScanInfo#toString |  Minor | regionserver |
 | [HBASE-26789](https://issues.apache.org/jira/browse/HBASE-26789) | Automatically add default security headers to http/rest if SSL enabled |  Major | REST, UI |
+| [HBASE-23303](https://issues.apache.org/jira/browse/HBASE-23303) | Add security headers to REST server/info page |  Major | REST |
 
 
 ### BUG FIXES:
 
 | JIRA | Summary | Priority | Component |
 |:---- |:---- | :--- |:---- |
+| [HBASE-26840](https://issues.apache.org/jira/browse/HBASE-26840) | Fix NPE in the retry of logroller |  Minor | wal |
 | [HBASE-26670](https://issues.apache.org/jira/browse/HBASE-26670) | HFileLinkCleaner should be added even if snapshot is disabled |  Critical | snapshots |
 | [HBASE-26761](https://issues.apache.org/jira/browse/HBASE-26761) | TestMobStoreScanner (testGetMassive) can OOME |  Minor | mob, test |
 | [HBASE-26816](https://issues.apache.org/jira/browse/HBASE-26816) | Fix CME in ReplicationSourceManager |  Minor | Replication |
diff --git a/RELEASENOTES.md b/RELEASENOTES.md
index 4a14237..5c4c546 100644
--- a/RELEASENOTES.md
+++ b/RELEASENOTES.md
@@ -34,6 +34,15 @@
 
 ---
 
+* [HBASE-26552](https://issues.apache.org/jira/browse/HBASE-26552) | *Major* | **Introduce retry to logroller to avoid abort**
+
+For retrying to roll log, the wait timeout is limited by "hbase.regionserver.logroll.wait.timeout.ms",
+and the max retry time is limited by "hbase.regionserver.logroll.retries".
+Do not retry to roll log is the default behavior.
+
+
+---
+
 * [HBASE-25709](https://issues.apache.org/jira/browse/HBASE-25709) | *Major* | **Close region may stuck when region is compacting and skipped most cells read**
 
 Both compacting scanners and user scanners should return promptly, when  there are many skipped cells.
diff --git a/hbase-annotations/pom.xml b/hbase-annotations/pom.xml
index 84da43e..30c900a 100644
--- a/hbase-annotations/pom.xml
+++ b/hbase-annotations/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <artifactId>hbase</artifactId>
     <groupId>org.apache.hbase</groupId>
-    <version>2.4.12-SNAPSHOT</version>
+    <version>2.4.11</version>
     <relativePath>..</relativePath>
   </parent>
 
diff --git a/hbase-archetypes/hbase-archetype-builder/pom.xml b/hbase-archetypes/hbase-archetype-builder/pom.xml
index d8e2338..49f8790 100644
--- a/hbase-archetypes/hbase-archetype-builder/pom.xml
+++ b/hbase-archetypes/hbase-archetype-builder/pom.xml
@@ -25,7 +25,7 @@
   <parent>
     <artifactId>hbase-archetypes</artifactId>
     <groupId>org.apache.hbase</groupId>
-    <version>2.4.12-SNAPSHOT</version>
+    <version>2.4.11</version>
     <relativePath>..</relativePath>
   </parent>
 
diff --git a/hbase-archetypes/hbase-client-project/pom.xml b/hbase-archetypes/hbase-client-project/pom.xml
index 1fb781d..11985de 100644
--- a/hbase-archetypes/hbase-client-project/pom.xml
+++ b/hbase-archetypes/hbase-client-project/pom.xml
@@ -26,7 +26,7 @@
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     <groupId>org.apache.hbase</groupId>
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   <artifactId>hbase-client-project</artifactId>
diff --git a/hbase-archetypes/hbase-shaded-client-project/pom.xml b/hbase-archetypes/hbase-shaded-client-project/pom.xml
index 81925e0..57d0f2b 100644
--- a/hbase-archetypes/hbase-shaded-client-project/pom.xml
+++ b/hbase-archetypes/hbase-shaded-client-project/pom.xml
@@ -26,7 +26,7 @@
   <parent>
     <artifactId>hbase-archetypes</artifactId>
     <groupId>org.apache.hbase</groupId>
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   <artifactId>hbase-shaded-client-project</artifactId>
diff --git a/hbase-archetypes/pom.xml b/hbase-archetypes/pom.xml
index 5ce36c1..9d66041 100644
--- a/hbase-archetypes/pom.xml
+++ b/hbase-archetypes/pom.xml
@@ -24,7 +24,7 @@
   <parent>
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     <groupId>org.apache.hbase</groupId>
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   </parent>
 
diff --git a/hbase-assembly/pom.xml b/hbase-assembly/pom.xml
index eca030c..d73840b 100644
--- a/hbase-assembly/pom.xml
+++ b/hbase-assembly/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <artifactId>hbase-build-configuration</artifactId>
     <groupId>org.apache.hbase</groupId>
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   </parent>
   <artifactId>hbase-assembly</artifactId>
diff --git a/hbase-asyncfs/pom.xml b/hbase-asyncfs/pom.xml
index db89ae5..fa0ad8c 100644
--- a/hbase-asyncfs/pom.xml
+++ b/hbase-asyncfs/pom.xml
@@ -24,7 +24,7 @@
   <parent>
     <artifactId>hbase-build-configuration</artifactId>
     <groupId>org.apache.hbase</groupId>
-    <version>2.4.12-SNAPSHOT</version>
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   </parent>
 
diff --git a/hbase-build-configuration/pom.xml b/hbase-build-configuration/pom.xml
index a3b031b..ce58bfa 100644
--- a/hbase-build-configuration/pom.xml
+++ b/hbase-build-configuration/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <artifactId>hbase</artifactId>
     <groupId>org.apache.hbase</groupId>
-    <version>2.4.12-SNAPSHOT</version>
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diff --git a/hbase-checkstyle/pom.xml b/hbase-checkstyle/pom.xml
index a4a3d09..eedf71a 100644
--- a/hbase-checkstyle/pom.xml
+++ b/hbase-checkstyle/pom.xml
@@ -24,7 +24,7 @@
 <modelVersion>4.0.0</modelVersion>
 <groupId>org.apache.hbase</groupId>
 <artifactId>hbase-checkstyle</artifactId>
-<version>2.4.12-SNAPSHOT</version>
+<version>2.4.11</version>
 <name>Apache HBase - Checkstyle</name>
 <description>Module to hold Checkstyle properties for HBase.</description>
 <!--REMOVE-->
@@ -32,7 +32,7 @@
   <parent>
     <artifactId>hbase</artifactId>
     <groupId>org.apache.hbase</groupId>
-    <version>2.4.12-SNAPSHOT</version>
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   </parent>
 
diff --git a/hbase-client/pom.xml b/hbase-client/pom.xml
index 0cdf3f9..8eb52d7 100644
--- a/hbase-client/pom.xml
+++ b/hbase-client/pom.xml
@@ -24,7 +24,7 @@
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     <groupId>org.apache.hbase</groupId>
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     <relativePath>../hbase-build-configuration</relativePath>
   </parent>
 
diff --git a/hbase-common/pom.xml b/hbase-common/pom.xml
index 0767127..328e393 100644
--- a/hbase-common/pom.xml
+++ b/hbase-common/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <artifactId>hbase-build-configuration</artifactId>
     <groupId>org.apache.hbase</groupId>
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   </parent>
 
diff --git a/hbase-endpoint/pom.xml b/hbase-endpoint/pom.xml
index ca6d602..efb6a14 100644
--- a/hbase-endpoint/pom.xml
+++ b/hbase-endpoint/pom.xml
@@ -23,7 +23,7 @@
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     <groupId>org.apache.hbase</groupId>
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diff --git a/hbase-examples/pom.xml b/hbase-examples/pom.xml
index 100780f..0e4ca97 100644
--- a/hbase-examples/pom.xml
+++ b/hbase-examples/pom.xml
@@ -23,7 +23,7 @@
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   </parent>
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diff --git a/hbase-external-blockcache/pom.xml b/hbase-external-blockcache/pom.xml
index dd13cdb..b4e667b 100644
--- a/hbase-external-blockcache/pom.xml
+++ b/hbase-external-blockcache/pom.xml
@@ -25,7 +25,7 @@
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diff --git a/hbase-hadoop-compat/pom.xml b/hbase-hadoop-compat/pom.xml
index e57b738..b62d648 100644
--- a/hbase-hadoop-compat/pom.xml
+++ b/hbase-hadoop-compat/pom.xml
@@ -23,7 +23,7 @@
     <parent>
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         <groupId>org.apache.hbase</groupId>
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     </parent>
 
diff --git a/hbase-hadoop2-compat/pom.xml b/hbase-hadoop2-compat/pom.xml
index f3cebe7..8db5b9a 100644
--- a/hbase-hadoop2-compat/pom.xml
+++ b/hbase-hadoop2-compat/pom.xml
@@ -21,7 +21,7 @@
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diff --git a/hbase-hbtop/pom.xml b/hbase-hbtop/pom.xml
index f67317b..71d2ae4 100644
--- a/hbase-hbtop/pom.xml
+++ b/hbase-hbtop/pom.xml
@@ -25,7 +25,7 @@
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diff --git a/hbase-http/pom.xml b/hbase-http/pom.xml
index fbfc31f..46caf5a 100644
--- a/hbase-http/pom.xml
+++ b/hbase-http/pom.xml
@@ -23,7 +23,7 @@
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diff --git a/hbase-it/pom.xml b/hbase-it/pom.xml
index dff3107..9d6246d 100644
--- a/hbase-it/pom.xml
+++ b/hbase-it/pom.xml
@@ -23,7 +23,7 @@
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diff --git a/hbase-logging/pom.xml b/hbase-logging/pom.xml
index 6fe9ffa..405f02e 100644
--- a/hbase-logging/pom.xml
+++ b/hbase-logging/pom.xml
@@ -25,7 +25,7 @@
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diff --git a/hbase-mapreduce/pom.xml b/hbase-mapreduce/pom.xml
index 1c5d646..06197ba 100644
--- a/hbase-mapreduce/pom.xml
+++ b/hbase-mapreduce/pom.xml
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diff --git a/hbase-metrics-api/pom.xml b/hbase-metrics-api/pom.xml
index d78858d..2a5de59 100644
--- a/hbase-metrics-api/pom.xml
+++ b/hbase-metrics-api/pom.xml
@@ -23,7 +23,7 @@
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diff --git a/hbase-metrics/pom.xml b/hbase-metrics/pom.xml
index 24908ca3..98b763a 100644
--- a/hbase-metrics/pom.xml
+++ b/hbase-metrics/pom.xml
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diff --git a/hbase-procedure/pom.xml b/hbase-procedure/pom.xml
index 4e4c9c5..ae50787 100644
--- a/hbase-procedure/pom.xml
+++ b/hbase-procedure/pom.xml
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diff --git a/hbase-protocol-shaded/pom.xml b/hbase-protocol-shaded/pom.xml
index 74165d6..86b4de4 100644
--- a/hbase-protocol-shaded/pom.xml
+++ b/hbase-protocol-shaded/pom.xml
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diff --git a/hbase-protocol/pom.xml b/hbase-protocol/pom.xml
index fbc2047..bf5009b 100644
--- a/hbase-protocol/pom.xml
+++ b/hbase-protocol/pom.xml
@@ -23,7 +23,7 @@
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diff --git a/hbase-replication/pom.xml b/hbase-replication/pom.xml
index 69b947b..9a0e277 100644
--- a/hbase-replication/pom.xml
+++ b/hbase-replication/pom.xml
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diff --git a/hbase-resource-bundle/pom.xml b/hbase-resource-bundle/pom.xml
index 3fded9d..1deb7a8 100644
--- a/hbase-resource-bundle/pom.xml
+++ b/hbase-resource-bundle/pom.xml
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diff --git a/hbase-rest/pom.xml b/hbase-rest/pom.xml
index 1c2773b..a6cd02f 100644
--- a/hbase-rest/pom.xml
+++ b/hbase-rest/pom.xml
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diff --git a/hbase-rsgroup/pom.xml b/hbase-rsgroup/pom.xml
index 57d6dbd..cabfdf7 100644
--- a/hbase-rsgroup/pom.xml
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diff --git a/hbase-server/pom.xml b/hbase-server/pom.xml
index d7e13ba..171ddf5 100644
--- a/hbase-server/pom.xml
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diff --git a/hbase-shaded/hbase-shaded-check-invariants/pom.xml b/hbase-shaded/hbase-shaded-check-invariants/pom.xml
index 05d49ae..4141ce6 100644
--- a/hbase-shaded/hbase-shaded-check-invariants/pom.xml
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diff --git a/hbase-shaded/hbase-shaded-client-byo-hadoop/pom.xml b/hbase-shaded/hbase-shaded-client-byo-hadoop/pom.xml
index 5a00021..17e7bdc 100644
--- a/hbase-shaded/hbase-shaded-client-byo-hadoop/pom.xml
+++ b/hbase-shaded/hbase-shaded-client-byo-hadoop/pom.xml
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diff --git a/hbase-shaded/hbase-shaded-client/pom.xml b/hbase-shaded/hbase-shaded-client/pom.xml
index 343be15c7..b1e2e2a 100644
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diff --git a/hbase-shaded/hbase-shaded-mapreduce/pom.xml b/hbase-shaded/hbase-shaded-mapreduce/pom.xml
index 469cc92..f26853e 100644
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diff --git a/hbase-shaded/hbase-shaded-testing-util-tester/pom.xml b/hbase-shaded/hbase-shaded-testing-util-tester/pom.xml
index cf5d9dc..657303d 100644
--- a/hbase-shaded/hbase-shaded-testing-util-tester/pom.xml
+++ b/hbase-shaded/hbase-shaded-testing-util-tester/pom.xml
@@ -25,7 +25,7 @@
   <parent>
     <groupId>org.apache.hbase</groupId>
     <artifactId>hbase-build-configuration</artifactId>
-    <version>2.4.12-SNAPSHOT</version>
+    <version>2.4.11</version>
     <relativePath>../../hbase-build-configuration</relativePath>
   </parent>
 
diff --git a/hbase-shaded/hbase-shaded-testing-util/pom.xml b/hbase-shaded/hbase-shaded-testing-util/pom.xml
index 0c55488..b278013 100644
--- a/hbase-shaded/hbase-shaded-testing-util/pom.xml
+++ b/hbase-shaded/hbase-shaded-testing-util/pom.xml
@@ -25,7 +25,7 @@
     <parent>
         <artifactId>hbase-shaded</artifactId>
         <groupId>org.apache.hbase</groupId>
-        <version>2.4.12-SNAPSHOT</version>
+        <version>2.4.11</version>
         <relativePath>..</relativePath>
     </parent>
 
diff --git a/hbase-shaded/hbase-shaded-with-hadoop-check-invariants/pom.xml b/hbase-shaded/hbase-shaded-with-hadoop-check-invariants/pom.xml
index 6b906ea..e79d266 100644
--- a/hbase-shaded/hbase-shaded-with-hadoop-check-invariants/pom.xml
+++ b/hbase-shaded/hbase-shaded-with-hadoop-check-invariants/pom.xml
@@ -16,7 +16,7 @@
   <parent>
     <artifactId>hbase</artifactId>
     <groupId>org.apache.hbase</groupId>
-    <version>2.4.12-SNAPSHOT</version>
+    <version>2.4.11</version>
     <relativePath>../..</relativePath>
   </parent>
   <artifactId>hbase-shaded-with-hadoop-check-invariants</artifactId>
diff --git a/hbase-shaded/pom.xml b/hbase-shaded/pom.xml
index c6dae705..c2f5460 100644
--- a/hbase-shaded/pom.xml
+++ b/hbase-shaded/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <artifactId>hbase-build-configuration</artifactId>
         <groupId>org.apache.hbase</groupId>
-        <version>2.4.12-SNAPSHOT</version>
+        <version>2.4.11</version>
         <relativePath>../hbase-build-configuration</relativePath>
     </parent>
     <artifactId>hbase-shaded</artifactId>
diff --git a/hbase-shell/pom.xml b/hbase-shell/pom.xml
index 0e0355f..28d797c 100644
--- a/hbase-shell/pom.xml
+++ b/hbase-shell/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <artifactId>hbase-build-configuration</artifactId>
     <groupId>org.apache.hbase</groupId>
-    <version>2.4.12-SNAPSHOT</version>
+    <version>2.4.11</version>
     <relativePath>../hbase-build-configuration</relativePath>
   </parent>
   <artifactId>hbase-shell</artifactId>
diff --git a/hbase-testing-util/pom.xml b/hbase-testing-util/pom.xml
index bf7bad5..4b5c1ee 100644
--- a/hbase-testing-util/pom.xml
+++ b/hbase-testing-util/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <artifactId>hbase-build-configuration</artifactId>
         <groupId>org.apache.hbase</groupId>
-        <version>2.4.12-SNAPSHOT</version>
+        <version>2.4.11</version>
         <relativePath>../hbase-build-configuration</relativePath>
     </parent>
     <artifactId>hbase-testing-util</artifactId>
diff --git a/hbase-thrift/pom.xml b/hbase-thrift/pom.xml
index 57a08c0..d0bceb3 100644
--- a/hbase-thrift/pom.xml
+++ b/hbase-thrift/pom.xml
@@ -25,7 +25,7 @@
   <parent>
     <artifactId>hbase-build-configuration</artifactId>
     <groupId>org.apache.hbase</groupId>
-    <version>2.4.12-SNAPSHOT</version>
+    <version>2.4.11</version>
     <relativePath>../hbase-build-configuration</relativePath>
   </parent>
   <artifactId>hbase-thrift</artifactId>
diff --git a/hbase-zookeeper/pom.xml b/hbase-zookeeper/pom.xml
index 8fb822f..1a965ca 100644
--- a/hbase-zookeeper/pom.xml
+++ b/hbase-zookeeper/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <artifactId>hbase-build-configuration</artifactId>
     <groupId>org.apache.hbase</groupId>
-    <version>2.4.12-SNAPSHOT</version>
+    <version>2.4.11</version>
     <relativePath>../hbase-build-configuration</relativePath>
   </parent>
   <artifactId>hbase-zookeeper</artifactId>
diff --git a/pom.xml b/pom.xml
index ad8b5dd..18e4c09 100755
--- a/pom.xml
+++ b/pom.xml
@@ -39,7 +39,7 @@
   <groupId>org.apache.hbase</groupId>
   <artifactId>hbase</artifactId>
   <packaging>pom</packaging>
-  <version>2.4.12-SNAPSHOT</version>
+  <version>2.4.11</version>
   <name>Apache HBase</name>
   <description>
     Apache HBase™ is the Hadoop database. Use it when you need