diff --git a/CHANGES.md b/CHANGES.md
index 722f2777a8f..8097a1efcf6 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -20,54 +20,6 @@
# Be careful doing manual edits in this file. Do not change format
# of release header or remove the below marker. This file is generated.
# DO NOT REMOVE THIS MARKER; FOR INTERPOLATING CHANGES!-->
-## Release 2.4.8 - 2021-10-27
-
-
-
-### NEW FEATURES:
-
-| JIRA | Summary | Priority | Component |
-|:---- |:---- | :--- |:---- |
-| [HBASE-26284](https://issues.apache.org/jira/browse/HBASE-26284) | Add HBase Thrift API to get all table names along with whether it is enabled or not | Major | Thrift |
-
-
-### IMPROVEMENTS:
-
-| JIRA | Summary | Priority | Component |
-|:---- |:---- | :--- |:---- |
-| [HBASE-25773](https://issues.apache.org/jira/browse/HBASE-25773) | TestSnapshotScannerHDFSAclController.setupBeforeClass is flaky | Major | . |
-
-
-### BUG FIXES:
-
-| JIRA | Summary | Priority | Component |
-|:---- |:---- | :--- |:---- |
-| [HBASE-26190](https://issues.apache.org/jira/browse/HBASE-26190) | High rate logging of BucketAllocatorException: Allocation too big | Major | BucketCache, Operability |
-| [HBASE-26383](https://issues.apache.org/jira/browse/HBASE-26383) | HBCK incorrectly reports inconsistencies for recently split regions following a master failover | Critical | master |
-| [HBASE-26371](https://issues.apache.org/jira/browse/HBASE-26371) | Prioritize meta region move over other region moves in region\_mover | Major | . |
-| [HBASE-26364](https://issues.apache.org/jira/browse/HBASE-26364) | TestThriftServer is failing 100% in our flaky test job | Major | test, Thrift |
-| [HBASE-26350](https://issues.apache.org/jira/browse/HBASE-26350) | Missing server side debugging on failed SASL handshake | Minor | . |
-| [HBASE-26344](https://issues.apache.org/jira/browse/HBASE-26344) | Fix Bug for MultiByteBuff.put(int, byte) | Major | . |
-| [HBASE-26312](https://issues.apache.org/jira/browse/HBASE-26312) | Shell scan fails with timestamp | Major | shell, test |
-
-
-### SUB-TASKS:
-
-| JIRA | Summary | Priority | Component |
-|:---- |:---- | :--- |:---- |
-| [HBASE-26360](https://issues.apache.org/jira/browse/HBASE-26360) | Use gen\_redirect\_html for linking test logs | Major | jenkins, scripts |
-| [HBASE-26341](https://issues.apache.org/jira/browse/HBASE-26341) | Upload dashboard html for flaky find job to nightlies | Major | flakies, jenkins, scripts |
-| [HBASE-26339](https://issues.apache.org/jira/browse/HBASE-26339) | SshPublisher will skip uploading artifacts if the build is failure | Major | jenkins, scripts |
-
-
-### OTHER:
-
-| JIRA | Summary | Priority | Component |
-|:---- |:---- | :--- |:---- |
-| [HBASE-26329](https://issues.apache.org/jira/browse/HBASE-26329) | Upgrade commons-io to 2.11.0 | Major | dependencies |
-| [HBASE-26186](https://issues.apache.org/jira/browse/HBASE-26186) | jenkins script for caching artifacts should verify cached file before relying on it | Major | build, integration tests |
-
-
## Release 2.4.7 - 2021-10-15
diff --git a/RELEASENOTES.md b/RELEASENOTES.md
index 67341028cda..c1176b643d3 100644
--- a/RELEASENOTES.md
+++ b/RELEASENOTES.md
@@ -20,34 +20,6 @@
# Be careful doing manual edits in this file. Do not change format
# of release header or remove the below marker. This file is generated.
# DO NOT REMOVE THIS MARKER; FOR INTERPOLATING CHANGES!-->
-# HBASE 2.4.8 Release Notes
-
-These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
-
-
----
-
-* [HBASE-26329](https://issues.apache.org/jira/browse/HBASE-26329) | *Major* | **Upgrade commons-io to 2.11.0**
-
-Upgraded commons-io to 2.11.0.
-
-
----
-
-* [HBASE-26186](https://issues.apache.org/jira/browse/HBASE-26186) | *Major* | **jenkins script for caching artifacts should verify cached file before relying on it**
-
-Add a '--verify-tar-gz' option to cache-apache-project-artifact.sh for verifying whether the cached file can be parsed as a gzipped tarball.
-Use this option in our nightly job to avoid failures on broken cached hadoop tarballs.
-
-
----
-
-* [HBASE-26339](https://issues.apache.org/jira/browse/HBASE-26339) | *Major* | **SshPublisher will skip uploading artifacts if the build is failure**
-
-Now we will mark build as unstable instead of failure when the yetus script returns error. This is used to solve the problem that the SshPublisher jenkins plugin will skip uploading artifacts if the build is marked as failure. In fact, the test output will be more important when there are UT failures.
-
-
-
# HBASE 2.4.7 Release Notes
These release notes cover new developer and user-facing incompatibilities, important issues, features, and major improvements.
diff --git a/hbase-annotations/pom.xml b/hbase-annotations/pom.xml
index 752765641e2..93151faf40e 100644
--- a/hbase-annotations/pom.xml
+++ b/hbase-annotations/pom.xml
@@ -23,7 +23,7 @@
hbase
org.apache.hbase
- 2.4.8
+ 2.4.8-SNAPSHOT
..
diff --git a/hbase-archetypes/hbase-archetype-builder/pom.xml b/hbase-archetypes/hbase-archetype-builder/pom.xml
index ab2e2af659b..e26b46d0633 100644
--- a/hbase-archetypes/hbase-archetype-builder/pom.xml
+++ b/hbase-archetypes/hbase-archetype-builder/pom.xml
@@ -25,7 +25,7 @@
hbase-archetypes
org.apache.hbase
- 2.4.8
+ 2.4.8-SNAPSHOT
..
diff --git a/hbase-archetypes/hbase-client-project/pom.xml b/hbase-archetypes/hbase-client-project/pom.xml
index 69df6658056..a93cc16c809 100644
--- a/hbase-archetypes/hbase-client-project/pom.xml
+++ b/hbase-archetypes/hbase-client-project/pom.xml
@@ -26,7 +26,7 @@
hbase-archetypes
org.apache.hbase
- 2.4.8
+ 2.4.8-SNAPSHOT
..
hbase-client-project
diff --git a/hbase-archetypes/hbase-shaded-client-project/pom.xml b/hbase-archetypes/hbase-shaded-client-project/pom.xml
index b92ef04a595..00c3a229d59 100644
--- a/hbase-archetypes/hbase-shaded-client-project/pom.xml
+++ b/hbase-archetypes/hbase-shaded-client-project/pom.xml
@@ -26,7 +26,7 @@
hbase-archetypes
org.apache.hbase
- 2.4.8
+ 2.4.8-SNAPSHOT
..
hbase-shaded-client-project
diff --git a/hbase-archetypes/pom.xml b/hbase-archetypes/pom.xml
index f24a23b4efa..9b1852e104c 100644
--- a/hbase-archetypes/pom.xml
+++ b/hbase-archetypes/pom.xml
@@ -24,7 +24,7 @@
hbase-build-configuration
org.apache.hbase
- 2.4.8
+ 2.4.8-SNAPSHOT
../hbase-build-configuration
diff --git a/hbase-assembly/pom.xml b/hbase-assembly/pom.xml
index 8097eeb8e9f..354e9f6a7d6 100644
--- a/hbase-assembly/pom.xml
+++ b/hbase-assembly/pom.xml
@@ -23,7 +23,7 @@
hbase-build-configuration
org.apache.hbase
- 2.4.8
+ 2.4.8-SNAPSHOT
../hbase-build-configuration
hbase-assembly
diff --git a/hbase-asyncfs/pom.xml b/hbase-asyncfs/pom.xml
index 3b0e7842efd..71f1273c561 100644
--- a/hbase-asyncfs/pom.xml
+++ b/hbase-asyncfs/pom.xml
@@ -24,7 +24,7 @@
hbase-build-configuration
org.apache.hbase
- 2.4.8
+ 2.4.8-SNAPSHOT
../hbase-build-configuration
diff --git a/hbase-build-configuration/pom.xml b/hbase-build-configuration/pom.xml
index fba6c48601b..9d6812037f2 100644
--- a/hbase-build-configuration/pom.xml
+++ b/hbase-build-configuration/pom.xml
@@ -23,7 +23,7 @@
hbase
org.apache.hbase
- 2.4.8
+ 2.4.8-SNAPSHOT
..
diff --git a/hbase-checkstyle/pom.xml b/hbase-checkstyle/pom.xml
index 66638cbcdf3..00275135bdf 100644
--- a/hbase-checkstyle/pom.xml
+++ b/hbase-checkstyle/pom.xml
@@ -24,7 +24,7 @@
4.0.0
org.apache.hbase
hbase-checkstyle
-2.4.8
+2.4.8-SNAPSHOT
Apache HBase - Checkstyle
Module to hold Checkstyle properties for HBase.
@@ -32,7 +32,7 @@
hbase
org.apache.hbase
- 2.4.8
+ 2.4.8-SNAPSHOT
..
diff --git a/hbase-client/pom.xml b/hbase-client/pom.xml
index 72da54d19dc..caa2f0a9483 100644
--- a/hbase-client/pom.xml
+++ b/hbase-client/pom.xml
@@ -24,7 +24,7 @@
hbase-build-configuration
org.apache.hbase
- 2.4.8
+ 2.4.8-SNAPSHOT
../hbase-build-configuration
diff --git a/hbase-common/pom.xml b/hbase-common/pom.xml
index f744a282f7a..80de5a7b435 100644
--- a/hbase-common/pom.xml
+++ b/hbase-common/pom.xml
@@ -23,7 +23,7 @@
hbase-build-configuration
org.apache.hbase
- 2.4.8
+ 2.4.8-SNAPSHOT
../hbase-build-configuration
diff --git a/hbase-endpoint/pom.xml b/hbase-endpoint/pom.xml
index ec901c1ba92..a23d2f07333 100644
--- a/hbase-endpoint/pom.xml
+++ b/hbase-endpoint/pom.xml
@@ -23,7 +23,7 @@
hbase-build-configuration
org.apache.hbase
- 2.4.8
+ 2.4.8-SNAPSHOT
../hbase-build-configuration
hbase-endpoint
diff --git a/hbase-examples/pom.xml b/hbase-examples/pom.xml
index fbc416261bd..ac2513f1418 100644
--- a/hbase-examples/pom.xml
+++ b/hbase-examples/pom.xml
@@ -23,7 +23,7 @@
hbase-build-configuration
org.apache.hbase
- 2.4.8
+ 2.4.8-SNAPSHOT
../hbase-build-configuration
hbase-examples
diff --git a/hbase-external-blockcache/pom.xml b/hbase-external-blockcache/pom.xml
index 2effd5219d7..da4e94d517e 100644
--- a/hbase-external-blockcache/pom.xml
+++ b/hbase-external-blockcache/pom.xml
@@ -25,7 +25,7 @@
hbase-build-configuration
org.apache.hbase
- 2.4.8
+ 2.4.8-SNAPSHOT
../hbase-build-configuration
hbase-external-blockcache
diff --git a/hbase-hadoop-compat/pom.xml b/hbase-hadoop-compat/pom.xml
index f47aa558efc..90e41f3fbcf 100644
--- a/hbase-hadoop-compat/pom.xml
+++ b/hbase-hadoop-compat/pom.xml
@@ -23,7 +23,7 @@
hbase-build-configuration
org.apache.hbase
- 2.4.8
+ 2.4.8-SNAPSHOT
../hbase-build-configuration
diff --git a/hbase-hadoop2-compat/pom.xml b/hbase-hadoop2-compat/pom.xml
index c80c50cec6e..71d06fcb475 100644
--- a/hbase-hadoop2-compat/pom.xml
+++ b/hbase-hadoop2-compat/pom.xml
@@ -21,7 +21,7 @@ limitations under the License.
hbase-build-configuration
org.apache.hbase
- 2.4.8
+ 2.4.8-SNAPSHOT
../hbase-build-configuration
diff --git a/hbase-hbtop/pom.xml b/hbase-hbtop/pom.xml
index daf2cbfd650..418504e3be1 100644
--- a/hbase-hbtop/pom.xml
+++ b/hbase-hbtop/pom.xml
@@ -25,7 +25,7 @@
hbase-build-configuration
org.apache.hbase
- 2.4.8
+ 2.4.8-SNAPSHOT
../hbase-build-configuration
hbase-hbtop
diff --git a/hbase-http/pom.xml b/hbase-http/pom.xml
index 9678cab4517..ff11695c524 100644
--- a/hbase-http/pom.xml
+++ b/hbase-http/pom.xml
@@ -23,7 +23,7 @@
hbase-build-configuration
org.apache.hbase
- 2.4.8
+ 2.4.8-SNAPSHOT
../hbase-build-configuration
hbase-http
diff --git a/hbase-it/pom.xml b/hbase-it/pom.xml
index 3babfa40815..5aa484b4650 100644
--- a/hbase-it/pom.xml
+++ b/hbase-it/pom.xml
@@ -23,7 +23,7 @@
hbase-build-configuration
org.apache.hbase
- 2.4.8
+ 2.4.8-SNAPSHOT
../hbase-build-configuration
diff --git a/hbase-logging/pom.xml b/hbase-logging/pom.xml
index f51dd07e814..780d56c2c1b 100644
--- a/hbase-logging/pom.xml
+++ b/hbase-logging/pom.xml
@@ -25,7 +25,7 @@
hbase-build-configuration
org.apache.hbase
- 2.4.8
+ 2.4.8-SNAPSHOT
../hbase-build-configuration
diff --git a/hbase-mapreduce/pom.xml b/hbase-mapreduce/pom.xml
index 5ead0f25706..8e281bb4f6b 100644
--- a/hbase-mapreduce/pom.xml
+++ b/hbase-mapreduce/pom.xml
@@ -24,7 +24,7 @@
hbase-build-configuration
org.apache.hbase
- 2.4.8
+ 2.4.8-SNAPSHOT
../hbase-build-configuration
hbase-mapreduce
diff --git a/hbase-metrics-api/pom.xml b/hbase-metrics-api/pom.xml
index 185567f2b92..aa0b0cc654c 100644
--- a/hbase-metrics-api/pom.xml
+++ b/hbase-metrics-api/pom.xml
@@ -23,7 +23,7 @@
hbase-build-configuration
org.apache.hbase
- 2.4.8
+ 2.4.8-SNAPSHOT
../hbase-build-configuration
diff --git a/hbase-metrics/pom.xml b/hbase-metrics/pom.xml
index 64704fb6e00..6a5568567a4 100644
--- a/hbase-metrics/pom.xml
+++ b/hbase-metrics/pom.xml
@@ -23,7 +23,7 @@
hbase-build-configuration
org.apache.hbase
- 2.4.8
+ 2.4.8-SNAPSHOT
../hbase-build-configuration
diff --git a/hbase-procedure/pom.xml b/hbase-procedure/pom.xml
index 7a6bf43da7c..7a022bb661c 100644
--- a/hbase-procedure/pom.xml
+++ b/hbase-procedure/pom.xml
@@ -23,7 +23,7 @@
hbase-build-configuration
org.apache.hbase
- 2.4.8
+ 2.4.8-SNAPSHOT
../hbase-build-configuration
diff --git a/hbase-protocol-shaded/pom.xml b/hbase-protocol-shaded/pom.xml
index 2842588d0b5..a07e801d110 100644
--- a/hbase-protocol-shaded/pom.xml
+++ b/hbase-protocol-shaded/pom.xml
@@ -23,7 +23,7 @@
hbase-build-configuration
org.apache.hbase
- 2.4.8
+ 2.4.8-SNAPSHOT
../hbase-build-configuration
hbase-protocol-shaded
diff --git a/hbase-protocol/pom.xml b/hbase-protocol/pom.xml
index abe67ad1f5b..12372212b97 100644
--- a/hbase-protocol/pom.xml
+++ b/hbase-protocol/pom.xml
@@ -23,7 +23,7 @@
hbase-build-configuration
org.apache.hbase
- 2.4.8
+ 2.4.8-SNAPSHOT
../hbase-build-configuration
hbase-protocol
diff --git a/hbase-replication/pom.xml b/hbase-replication/pom.xml
index e516a9c729a..0366656ef4b 100644
--- a/hbase-replication/pom.xml
+++ b/hbase-replication/pom.xml
@@ -24,7 +24,7 @@
hbase-build-configuration
org.apache.hbase
- 2.4.8
+ 2.4.8-SNAPSHOT
../hbase-build-configuration
hbase-replication
diff --git a/hbase-resource-bundle/pom.xml b/hbase-resource-bundle/pom.xml
index 2578b8dbfd4..5acae17b8e9 100644
--- a/hbase-resource-bundle/pom.xml
+++ b/hbase-resource-bundle/pom.xml
@@ -23,7 +23,7 @@
hbase-build-configuration
org.apache.hbase
- 2.4.8
+ 2.4.8-SNAPSHOT
../hbase-build-configuration
diff --git a/hbase-rest/pom.xml b/hbase-rest/pom.xml
index b3e2631c785..65964f4c75b 100644
--- a/hbase-rest/pom.xml
+++ b/hbase-rest/pom.xml
@@ -23,7 +23,7 @@
hbase-build-configuration
org.apache.hbase
- 2.4.8
+ 2.4.8-SNAPSHOT
../hbase-build-configuration
hbase-rest
diff --git a/hbase-rsgroup/pom.xml b/hbase-rsgroup/pom.xml
index 817df5ad818..bc4798206ce 100644
--- a/hbase-rsgroup/pom.xml
+++ b/hbase-rsgroup/pom.xml
@@ -23,7 +23,7 @@
hbase-build-configuration
org.apache.hbase
- 2.4.8
+ 2.4.8-SNAPSHOT
../hbase-build-configuration
hbase-rsgroup
diff --git a/hbase-server/pom.xml b/hbase-server/pom.xml
index 60c52fce709..61e33529b0a 100644
--- a/hbase-server/pom.xml
+++ b/hbase-server/pom.xml
@@ -23,7 +23,7 @@
hbase-build-configuration
org.apache.hbase
- 2.4.8
+ 2.4.8-SNAPSHOT
../hbase-build-configuration
hbase-server
diff --git a/hbase-shaded/hbase-shaded-check-invariants/pom.xml b/hbase-shaded/hbase-shaded-check-invariants/pom.xml
index e440e8289f1..dbfd4f71fa3 100644
--- a/hbase-shaded/hbase-shaded-check-invariants/pom.xml
+++ b/hbase-shaded/hbase-shaded-check-invariants/pom.xml
@@ -16,7 +16,7 @@
hbase
org.apache.hbase
- 2.4.8
+ 2.4.8-SNAPSHOT
../..
hbase-shaded-check-invariants
diff --git a/hbase-shaded/hbase-shaded-client-byo-hadoop/pom.xml b/hbase-shaded/hbase-shaded-client-byo-hadoop/pom.xml
index 5a6bdf8c03b..bd58cd769e3 100644
--- a/hbase-shaded/hbase-shaded-client-byo-hadoop/pom.xml
+++ b/hbase-shaded/hbase-shaded-client-byo-hadoop/pom.xml
@@ -24,7 +24,7 @@
hbase-shaded
org.apache.hbase
- 2.4.8
+ 2.4.8-SNAPSHOT
..
hbase-shaded-client-byo-hadoop
diff --git a/hbase-shaded/hbase-shaded-client/pom.xml b/hbase-shaded/hbase-shaded-client/pom.xml
index bd6ccdf4a72..d504a6cf638 100644
--- a/hbase-shaded/hbase-shaded-client/pom.xml
+++ b/hbase-shaded/hbase-shaded-client/pom.xml
@@ -24,7 +24,7 @@
hbase-shaded
org.apache.hbase
- 2.4.8
+ 2.4.8-SNAPSHOT
..
hbase-shaded-client
diff --git a/hbase-shaded/hbase-shaded-mapreduce/pom.xml b/hbase-shaded/hbase-shaded-mapreduce/pom.xml
index 741621c06a8..15d6bfb11f7 100644
--- a/hbase-shaded/hbase-shaded-mapreduce/pom.xml
+++ b/hbase-shaded/hbase-shaded-mapreduce/pom.xml
@@ -24,7 +24,7 @@
hbase-shaded
org.apache.hbase
- 2.4.8
+ 2.4.8-SNAPSHOT
..
hbase-shaded-mapreduce
diff --git a/hbase-shaded/hbase-shaded-testing-util-tester/pom.xml b/hbase-shaded/hbase-shaded-testing-util-tester/pom.xml
index 4c25cf5b62a..3548c7e6321 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 @@
org.apache.hbase
hbase-build-configuration
- 2.4.8
+ 2.4.8-SNAPSHOT
../../hbase-build-configuration
diff --git a/hbase-shaded/hbase-shaded-testing-util/pom.xml b/hbase-shaded/hbase-shaded-testing-util/pom.xml
index 307c90f2784..acd5a2eb1d8 100644
--- a/hbase-shaded/hbase-shaded-testing-util/pom.xml
+++ b/hbase-shaded/hbase-shaded-testing-util/pom.xml
@@ -25,7 +25,7 @@
hbase-shaded
org.apache.hbase
- 2.4.8
+ 2.4.8-SNAPSHOT
..
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 5a3439de52a..82c997a3250 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 @@
hbase
org.apache.hbase
- 2.4.8
+ 2.4.8-SNAPSHOT
../..
hbase-shaded-with-hadoop-check-invariants
diff --git a/hbase-shaded/pom.xml b/hbase-shaded/pom.xml
index 6f5a2ba5021..94de8a6c26c 100644
--- a/hbase-shaded/pom.xml
+++ b/hbase-shaded/pom.xml
@@ -23,7 +23,7 @@
hbase-build-configuration
org.apache.hbase
- 2.4.8
+ 2.4.8-SNAPSHOT
../hbase-build-configuration
hbase-shaded
diff --git a/hbase-shell/pom.xml b/hbase-shell/pom.xml
index 38d4e5652a9..00258112246 100644
--- a/hbase-shell/pom.xml
+++ b/hbase-shell/pom.xml
@@ -23,7 +23,7 @@
hbase-build-configuration
org.apache.hbase
- 2.4.8
+ 2.4.8-SNAPSHOT
../hbase-build-configuration
hbase-shell
diff --git a/hbase-testing-util/pom.xml b/hbase-testing-util/pom.xml
index 52a3c3cb694..888d06ceb94 100644
--- a/hbase-testing-util/pom.xml
+++ b/hbase-testing-util/pom.xml
@@ -23,7 +23,7 @@
hbase-build-configuration
org.apache.hbase
- 2.4.8
+ 2.4.8-SNAPSHOT
../hbase-build-configuration
hbase-testing-util
diff --git a/hbase-thrift/pom.xml b/hbase-thrift/pom.xml
index 965424e76a2..1b08e0cd11a 100644
--- a/hbase-thrift/pom.xml
+++ b/hbase-thrift/pom.xml
@@ -25,7 +25,7 @@
hbase-build-configuration
org.apache.hbase
- 2.4.8
+ 2.4.8-SNAPSHOT
../hbase-build-configuration
hbase-thrift
diff --git a/hbase-zookeeper/pom.xml b/hbase-zookeeper/pom.xml
index b5772830521..f522b65b962 100644
--- a/hbase-zookeeper/pom.xml
+++ b/hbase-zookeeper/pom.xml
@@ -23,7 +23,7 @@
hbase-build-configuration
org.apache.hbase
- 2.4.8
+ 2.4.8-SNAPSHOT
../hbase-build-configuration
hbase-zookeeper
diff --git a/pom.xml b/pom.xml
index fb390640c8c..659b8f686e9 100755
--- a/pom.xml
+++ b/pom.xml
@@ -39,7 +39,7 @@
org.apache.hbase
hbase
pom
- 2.4.8
+ 2.4.8-SNAPSHOT
Apache HBase
Apache HBase™ is the Hadoop database. Use it when you need