4d90425031
Earlier when queues had locks, clearQueue() also cleaned up old locks when AbstractProcedureScheduler.clear() was called to reset scheduler for testing failure and recovery. Now with locks decoupled from queues, they need to be separately cleaned up. We can't have clearLocks() as abstract method in AbstractProcedureScheduler because at that level, a procedure scheduler is just a queue. It's only in MasterProcedureScheduler that locks come into picture. So directly overriding clear() method in MPS. Earlier when queues had locks, clearQueue() also cleaned up old locks when AbstractProcedureScheduler.clear() was called. Now with locks decoupled from queues, they need to be separately cleaned up. We can't have clearLocks() as abstract method in AbstractProcedureScheduler because at that level, a procedure scheduler is just a queue. It's only in MasterProcedureScheduler that locks come into picture. So directly overriding clear() method in MPS. Change-Id: If1a0acb418a79f98ce6155541edb0c1e621638e3 |
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bin | ||
conf | ||
dev-support | ||
hbase-annotations | ||
hbase-archetypes | ||
hbase-assembly | ||
hbase-checkstyle | ||
hbase-client | ||
hbase-common | ||
hbase-endpoint | ||
hbase-examples | ||
hbase-external-blockcache | ||
hbase-hadoop-compat | ||
hbase-hadoop2-compat | ||
hbase-it | ||
hbase-metrics | ||
hbase-metrics-api | ||
hbase-native-client | ||
hbase-prefix-tree | ||
hbase-procedure | ||
hbase-protocol | ||
hbase-protocol-shaded | ||
hbase-resource-bundle | ||
hbase-rest | ||
hbase-rsgroup | ||
hbase-server | ||
hbase-shaded | ||
hbase-shell | ||
hbase-spark | ||
hbase-testing-util | ||
hbase-thrift | ||
src/main | ||
.gitattributes | ||
.gitignore | ||
CHANGES.txt | ||
LICENSE.txt | ||
NOTICE.txt | ||
README.txt | ||
pom.xml |
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