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Bharath Vissapragada 58f067dc4d
HBASE-25998: Redo synchronization in SyncFuture (#3400)
Currently uses coarse grained synchronized approach that seems to
create a lot of contention. This patch

- Uses a reentrant lock instead of synchronized monitor
- Switches to a condition variable based waiting rather than busy wait
- Removed synchronization for unnecessary fields

Signed-off-by: Michael Stack <stack@apache.org>
Signed-off-by: Andrew Purtell <apurtell@apache.org>
Signed-off-by: Duo Zhang <zhangduo@apache.org>
Signed-off-by: Viraj Jasani <vjasani@apache.org>
(cherry picked from commit 6bafb59642)
2021-06-18 10:37:01 -07:00
.idea HBASE-23707 Add IntelliJ check style plugin configuration (#1064) (#1092) 2020-01-27 10:45:27 -08:00
bin HBASE-25696 Need to initialize SLF4JBridgeHandler in jul-to-slf4j for redirecting jul to slf4j (#3093) (#3112) 2021-04-02 18:07:59 +08:00
conf HBASE-24343 Document how to configure the http request log 2020-05-29 16:59:35 -07:00
dev-support HBASE-25875 RegionServer failed to start with IllegalThreadStateException due to race condition in AuthenticationTokenSecretManager (#3250) 2021-05-26 00:14:32 +05:30
hbase-annotations Preparing development version 2.4.5-SNAPSHOT 2021-06-07 15:21:44 -07:00
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hbase-assembly Preparing development version 2.4.5-SNAPSHOT 2021-06-07 15:21:44 -07:00
hbase-asyncfs HBASE-25989 FanOutOneBlockAsyncDFSOutput using shaded protobuf in hdfs 3.3+ (#3368) 2021-06-12 08:30:00 -06:00
hbase-build-configuration Preparing development version 2.4.5-SNAPSHOT 2021-06-07 15:21:44 -07:00
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hbase-examples Preparing development version 2.4.5-SNAPSHOT 2021-06-07 15:21:44 -07:00
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hbase-hbtop Preparing development version 2.4.5-SNAPSHOT 2021-06-07 15:21:44 -07:00
hbase-http HBASE-25993 Make excluded SSL cipher suites configurable for all Web UIs (#3375) 2021-06-10 16:59:29 +02:00
hbase-it Preparing development version 2.4.5-SNAPSHOT 2021-06-07 15:21:44 -07:00
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hbase-procedure Preparing development version 2.4.5-SNAPSHOT 2021-06-07 15:21:44 -07:00
hbase-protocol HBASE-26002 MultiRowMutationEndpoint should return the result of the conditional update (#3386) 2021-06-15 13:57:25 +09:00
hbase-protocol-shaded Preparing development version 2.4.5-SNAPSHOT 2021-06-07 15:21:44 -07:00
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hbase-rsgroup Preparing development version 2.4.5-SNAPSHOT 2021-06-07 15:21:44 -07:00
hbase-server HBASE-25998: Redo synchronization in SyncFuture (#3400) 2021-06-18 10:37:01 -07:00
hbase-shaded Preparing development version 2.4.5-SNAPSHOT 2021-06-07 15:21:44 -07:00
hbase-shell Preparing development version 2.4.5-SNAPSHOT 2021-06-07 15:21:44 -07:00
hbase-testing-util Preparing development version 2.4.5-SNAPSHOT 2021-06-07 15:21:44 -07:00
hbase-thrift HBASE-25987 Make SSL keystore type configurable for HBase ThriftServer (#3367) 2021-06-09 16:57:51 +01:00
hbase-zookeeper HBASE-26000 Optimize the display of ZK dump in the master web UI (#3383) 2021-06-15 14:16:19 +01:00
src HBASE-25790 NamedQueue 'BalancerRejection' for recent history of balancer skipping (#3182) (#3245) 2021-05-09 00:26:58 +05:30
.editorconfig HBASE-23767 Add JDK11 compilation and unit test support to Github precommit 2020-03-05 13:59:01 -08:00
.gitattributes HBASE-6816. [WINDOWS] line endings on checkout for .sh files 2013-01-23 19:30:14 +00:00
.gitignore HBASE-24271 Set values in `conf/hbase-site.xml` that enable running on `LocalFileSystem` out of the box 2020-05-14 14:05:40 -07:00
.pylintrc HBASE-21712 : Make submit-patch.py python3 compatible 2019-01-16 09:28:25 +01:00
.rubocop.yml HBASE-23943 Updated Rubocop configuration to current version 2020-03-18 11:48:36 +01:00
CHANGES.md Preparing hbase release 2.4.4RC0; tagging and updates to CHANGES.md and RELEASENOTES.md 2021-06-07 15:21:39 -07:00
LICENSE.txt HBASE-18548 Move sources of website gen and check jobs into source control 2017-12-19 23:40:46 +08:00
NOTICE.txt HBASE-24417 update copyright notices year to 2020 (#1760) 2020-05-25 13:00:27 +08:00
README.txt HBASE-18548 Move sources of website gen and check jobs into source control 2017-12-19 23:40:46 +08:00
RELEASENOTES.md Preparing hbase release 2.4.4RC0; tagging and updates to CHANGES.md and RELEASENOTES.md 2021-06-07 15:21:39 -07:00
pom.xml HBASE-25969 Purge netty-all transitive includes (#3353) 2021-06-08 07:33:25 -07:00

README.txt

Apache HBase [1] is an open-source, distributed, versioned, column-oriented
store modeled after Google' Bigtable: A Distributed Storage System for
Structured Data by Chang et al.[2]  Just as Bigtable leverages the distributed
data storage provided by the Google File System, HBase provides Bigtable-like
capabilities on top of Apache Hadoop [3].

To get started using HBase, the full documentation for this release can be
found under the doc/ directory that accompanies this README.  Using a browser,
open the docs/index.html to view the project home page (or browse to [1]).
The hbase 'book' at http://hbase.apache.org/book.html has a 'quick start'
section and is where you should being your exploration of the hbase project.

The latest HBase can be downloaded from an Apache Mirror [4].

The source code can be found at [5]

The HBase issue tracker is at [6]

Apache HBase is made available under the Apache License, version 2.0 [7]

The HBase mailing lists and archives are listed here [8].

The HBase distribution includes cryptographic software. See the export control
notice here [9].

1. http://hbase.apache.org
2. http://research.google.com/archive/bigtable.html
3. http://hadoop.apache.org
4. http://www.apache.org/dyn/closer.cgi/hbase/
5. https://hbase.apache.org/source-repository.html
6. https://hbase.apache.org/issue-tracking.html
7. http://hbase.apache.org/license.html
8. http://hbase.apache.org/mail-lists.html
9. https://hbase.apache.org/export_control.html