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HBASE-25896 Implement a Region Visualization on Master WebUI
This is a demonstration of visualization of regions on the cluster. The visualization is a stacked bar chart showing total storefile size per table per region server, with the x-axis being server names, the y-axis being storfile size, and the bars stacked per table. The visualization is generated entirely on the fly from within the browser, implemented using Vega Lite. So far, Vega appears to handle rendering this visualization for a cluster of over 700 region servers with approximately 300,000 regions. Per [0], include an update to the top-level LICENSE.txt. Also update LICENSE files in all binary distributions (i.e., jars), by way of LICENSE.vm. Vega uses a BSD 3-clause variant without advertising clause, and as such is a "Category A" license, per [1]. No changes are made to the NOTICE files, as per the existing example of bundling the minified JQuery, which is also a Category A license. [0]: https://infra.apache.org/licensing-howto.html [1]: https://www.apache.org/legal/resolved.html#category-a
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‎LICENSE.txt‎

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@@ -639,3 +639,37 @@ under a '2-clause BSD' license.
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LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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SUCH DAMAGE.
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----
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This project bundles a copy of the Vega minified javascript library version
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5.19.1, the Vega-Lite minified javascript library version 5.0.0, and the
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Vega-Embed minified javascript library version 6.15.1. All three are
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available under the following '3-clause BSD' license.
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Copyright (c) 2015-2018, University of Washington Interactive Data Lab
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice, this
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list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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3. Neither the name of the copyright holder nor the names of its contributors
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may be used to endorse or promote products derived from this software
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without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
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FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

‎hbase-assembly/pom.xml‎

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<debug-print-included-work-info>${license.debug.print.included}</debug-print-included-work-info>
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<bundled-dependencies>${license.bundles.dependencies}</bundled-dependencies>
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<bundled-jquery>${license.bundles.jquery}</bundled-jquery>
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<bundled-vega>${license.bundles.vega}</bundled-vega>
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<bundled-logo>${license.bundles.logo}</bundled-logo>
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<bundled-bootstrap>${license.bundles.bootstrap}</bundled-bootstrap>
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</properties>

‎hbase-http/pom.xml‎

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<debug-print-included-work-info>${license.debug.print.included}</debug-print-included-work-info>
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<bundled-dependencies>${license.bundles.dependencies}</bundled-dependencies>
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<bundled-jquery>${license.bundles.jquery}</bundled-jquery>
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<bundled-vega>${license.bundles.vega}</bundled-vega>
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<bundled-logo>${license.bundles.logo}</bundled-logo>
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<bundled-bootstrap>${license.bundles.bootstrap}</bundled-bootstrap>
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</properties>

‎hbase-resource-bundle/src/main/resources/META-INF/LICENSE.vm‎

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## Special cases, for e.g. ASL2.0 licensed works that bundle additional third party works
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#set($bundled-jquery = ${bundled-jquery.equalsIgnoreCase("true")})
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#set($bundled-vega = ${bundled-vega.equalsIgnoreCase("true")})
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#set($bundled-logo = ${bundled-logo.equalsIgnoreCase("true")})
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#set($bundled-dependencies = ${bundled-dependencies.equalsIgnoreCase("true")})
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#if($bundled-jquery || $bundled-logo || $bundled-dependencies)
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#if($bundled-jquery || $bundled-vega || $bundled-logo || $bundled-dependencies)
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====
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${project.name} contained works
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OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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#end
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#macro(vega_license)
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This project bundles a copy of the Vega minified javascript library version
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5.19.1, the Vega-Lite minified javascript library version 5.0.0, and the
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Vega-Embed minified javascript library version 6.15.1. All three are
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available under the following '3-clause BSD' license.
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Copyright (c) 2015-2018, University of Washington Interactive Data Lab
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice, this
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list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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3. Neither the name of the copyright holder nor the names of its contributors
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may be used to endorse or promote products derived from this software
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without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
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FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#end
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#macro(orca_logo_license)
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----
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#if(${bundled-jquery})
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#jquery_license()
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#end
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#if(${bundled-vega})
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#vega_license()
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#end
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#if(${bundled-logo})
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#orca_logo_license()
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#end

‎hbase-server/pom.xml‎

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<license.bundles.logo>true</license.bundles.logo>
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<license.bundles.bootstrap>true</license.bundles.bootstrap>
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<license.bundles.jquery>true</license.bundles.jquery>
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<license.bundles.vega>true</license.bundles.vega>
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</properties>
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<build>
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<!-- Make sure resources get added before they are processed by placing this first
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<debug-print-included-work-info>${license.debug.print.included}</debug-print-included-work-info>
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<bundled-dependencies>${license.bundles.dependencies}</bundled-dependencies>
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<bundled-jquery>${license.bundles.jquery}</bundled-jquery>
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<bundled-vega>${license.bundles.vega}</bundled-vega>
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<bundled-logo>${license.bundles.logo}</bundled-logo>
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<bundled-bootstrap>${license.bundles.bootstrap}</bundled-bootstrap>
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</properties>

‎hbase-server/src/main/jamon/org/apache/hadoop/hbase/tmpl/master/MasterStatusTmpl.jamon‎

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</div>
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</div>
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</section>
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<section>
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<h2><a name="region_visualizer"></a>Region Visualizer</h2>
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<& RegionVisualizerTmpl &>
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</section>
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<section>
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<h2><a name="peers">Peers</a></h2>
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<& peerConfigs &>

‎hbase-server/src/main/jamon/org/apache/hadoop/hbase/tmpl/master/RegionVisualizerTmpl.jamon‎

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<%doc>
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Licensed to the Apache Software Foundation (ASF) under one
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or more contributor license agreements. See the NOTICE file
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distributed with this work for additional information
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regarding copyright ownership. The ASF licenses this file
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to you under the Apache License, Version 2.0 (the
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"License"); you may not use this file except in compliance
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with the License. You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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</%doc>
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<script type="text/javascript" src="/static/js/[email protected]"></script>
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<script type="text/javascript" src="/static/js/[email protected]"></script>
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<script type="text/javascript" src="/static/js/[email protected]"></script>
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<div id="vis" style="width:80%;"></div>
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<script type="text/javascript">
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vega.expressionFunction('values', function(obj) { return Object.values(obj); });
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var vlSpec = {
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$schema: 'https://vega.github.io/schema/vega-lite/v5.json',
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description: 'Total `storefileSize` per Region Server',
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data: {
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name: 'region_info',
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url: 'http://localhost:16010/api/v1/admin/cluster_metrics/live_servers',
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format: { type: 'json', property: 'data' }
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},
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transform: [
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{ calculate: "split(datum.server_name.servername, ',', 1)[0]", as: 'server_name' },
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{ calculate: 'values(datum.region_status)', as: 'region_status' },
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{ flatten: ['region_status'] },
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{ calculate: "split(datum.region_status.name, ',', 1)[0]", as: 'table_name' },
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{ calculate: "split(datum.region_status.name, ',', 3)[2]", as: 'region_id' },
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],
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vconcat: [{
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title: {
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text: 'Total `storefileSize` per Region Server',
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align: 'center'
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},
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height: 250,
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width: 'container',
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mark: { type: 'bar', tooltip: true },
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params: [{
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name: 'legend_selection',
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select: { type: 'point', fields: ['table_name'] },
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bind: 'legend'
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}],
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encoding: {
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x: {
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title:'Region Server',
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field: 'server_name',
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type: 'nominal',
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axis: {
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labelAngle: 90,
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labelOverlap: 'greedy'
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},
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scale: { domain: { param: 'brush' } },
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sort: '-y'
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},
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y: {
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title: 'Total StoreFileSize',
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field: 'region_status.store_file_size',
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type: 'quantitative',
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aggregate: 'sum',
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format: '.4s',
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axis: { format: '.2s' },
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scale: { domainMin: 0 }
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},
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color: {
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field: 'table_name',
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type: 'nominal',
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title: 'Table'
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},
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opacity: {
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condition: { param: 'legend_selection', value: 0.9 },
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value: 0.2
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}
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}
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}, {
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mark: 'bar',
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height: 50,
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width: 'container',
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params: [{
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name: 'brush',
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select: { type: 'interval', encodings: ['x'] }
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}],
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encoding: {
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x: {
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field: 'server_name',
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type: 'nominal',
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axis: null,
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sort: '-y'
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},
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y: {
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field: 'region_status.store_file_size',
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aggregate: 'sum',
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axis: null
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},
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color: {
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field: 'table_name',
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title: 'Table'
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}
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}
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}]
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};
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vegaEmbed('#vis', vlSpec)
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.then(function(result) {
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//result.view.logger(vega.Debug);
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//console.log(result.view.data('region_info'));
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})
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.catch(console.Error);
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</script>

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