HBASE-29223 Migrate Master Status Jamon page back to JSP #6875
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PDavid
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Apr 1, 2025
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| public static final String FRAGS = "frags"; | ||
| public static final String SERVER_NAMES = "serverNames"; | ||
| public static final String SERVER_NAME = "serverName"; | ||
| public static final String RS_GROUP_INFOS = "rsGroupInfos"; | ||
| public static final String COLLECT_SERVERS = "collectServers"; | ||
| public static final String FILTER = "filter"; | ||
| public static final String FORMAT = "format"; | ||
| public static final String PARENT = "parent"; |
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Maybe we could just have these constants in MasterStatusUtil and then we don't need a separate class for this. What do you think?
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I tested this locally in standalone mode after building with maven (
I will still have to test these special cases as these have special UI parts:
I will also test with Pseudo-Distributed mode. |
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Apache9
reviewed
Apr 9, 2025
hbase-server/src/test/java/org/apache/hadoop/hbase/master/http/TestMasterStatusServlet.java
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Let me see if the copilot can give some feedbacks since this is a very big change... |
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Copilot reviewed 39 out of 45 changed files in this pull request and generated 3 comments.
Files not reviewed (6)
- hbase-server/src/main/jamon/org/apache/hadoop/hbase/tmpl/master/AssignmentManagerStatusTmpl.jamon: Language not supported
- hbase-server/src/main/jamon/org/apache/hadoop/hbase/tmpl/master/BackupMasterStatusTmpl.jamon: Language not supported
- hbase-server/src/main/jamon/org/apache/hadoop/hbase/tmpl/master/RSGroupListTmpl.jamon: Language not supported
- hbase-server/src/main/jamon/org/apache/hadoop/hbase/tmpl/master/RegionVisualizerTmpl.jamon: Language not supported
- hbase-server/src/main/jamon/org/apache/hadoop/hbase/tmpl/regionserver/RSStatusTmpl.jamon: Language not supported
- hbase-server/src/main/resources/hbase-webapps/master/index.html: Language not supported
hbase-server/src/main/resources/hbase-webapps/master/peerConfigs.jsp
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hbase-server/src/main/resources/hbase-webapps/master/catalogTables.jsp
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| rsGroupName = server2GroupMap.get(serverName.getAddress()).getName(); | ||
| } |
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This line assumes that server2GroupMap.get(serverName.getAddress()) is non-null. Add a null check before calling getName() to avoid a possible NullPointerException.
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| rsGroupName = server2GroupMap.get(serverName.getAddress()).getName(); | |
| } | |
| RSGroupInfo groupInfo = server2GroupMap.get(serverName.getAddress()); | |
| if (groupInfo != null) { | |
| rsGroupName = groupInfo.getName(); | |
| } else { | |
| rsGroupName = "default"; | |
| } | |
| } |
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To be honest I'm not sure if this is a good suggestion.
What do you all think?
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PDavid
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May 26, 2025
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| String hostname = master.getServerName().getHostname(); | ||
| assertTrue(page.contains("<h1>Master <small>" + hostname + "</small></h1>")); | ||
| assertTrue(page.contains("<h2><a name=\"regionservers\">Region Servers</a></h2>")); | ||
| assertRegionServerLinks(master, page); | ||
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| assertTrue(page.contains("<h2>Backup Masters</h2>")); | ||
| assertTrue(page.contains("<h2><a name=\"tables\">Tables</a></h2>")); | ||
| assertTableLinks(master, page); | ||
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| assertTrue(page.contains("<h2><a name=\"region_visualizer\"></a>Region Visualizer</h2>")); | ||
| assertTrue(page.contains("<h2><a name=\"peers\">Peers</a></h2>")); | ||
| assertTrue(page.contains("<h2><a name=\"tasks\">Tasks</a></h2>")); | ||
| assertTrue(page.contains("<h2><a name=\"attributes\">Software Attributes</a></h2>")); | ||
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| assertTrue(page.contains(VersionInfo.getVersion())); |
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For now I only added these assertions on the HTML content of the Master Status page. But we can add more sophisticated asserts in the future.
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- getUserTables - getFragmentationInfo - getMetaLocationOrNull
as it is one line and not complex.
…tusUtil as they are only static helper classes.
Added missing slash.
so that we test that `/master-status` redirects to `/master.jsp`.
…mon after rebase they were brought back while resolving conflicts.
- HBASE-28388 Avoid index based field sorting in tablesorter apache#6779 - HBASE-27802 Manage static javascript resources programatically apache#6864
from org.apache.hadoop.hbase.util to org.apache.hadoop.hbase.master.http package. Reason: these are exclusively used by the web UI.
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🎊 +1 overall
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🎊 +1 overall
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@NihalJain Can you please maybe check this PR? I'd appreciate your help very much. 🙏 |
PDavid
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Oct 16, 2025
This is the 2/3 step of the Jamon to JSP migration: the Region Server Status page. Did the migration the same way as for the Master Status page: #6875 Migrated the Jamon code to JSP as close as possible. Extracted the duplicated `formatZKString` method to new java class: ZKStringFormatter and added unit tests. Changed the Region Server Status page back to `/regionserver.jsp`. Made sure that `/rs-status` redirects to `/regionserver.jsp`. Extracted the BlockCache inline CSS styles to `hbase.css` file. Also extracted the large BlockCache Hit Ratio periods paging JavaScript code to separate .js file. Introduced a `src/main/resources/hbase-webapps/common` directory where we can place common JSP files which are used by both Master and RegionServer JSP pages. This required to adjust the JSP compiler Maven Antrun plugin a bit. Extracted the inline tablesorter initialization JavaScript code to separate file. Signed-off-by: Duo Zhang <[email protected]>
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ℹ️ Sorry, this PR is quite large. Maybe it is better to check the changes commit-by-commit.
This is the first step of the Jamon to JSP migration is the Master Status page.
Moved the Jamon code back to JSP. Changed the Jamon syntax back to JSP.
To transfer data between JSP pages I used request attributes.
Tried to preserve the code as much as possible but did some changes:
Sub-templates were usually extracted to separate JSP file (and included with
<jsp:include), in some case it was extracted as Java method.Extracted some sections from master page to separate JSP pages:
Extracted the long JavaScript from the master page which executes on page load to separate JS file.
Extracted some frequently used static methods to a new util class:
MasterStatusUtil. Also added unit tests for the static methods inMasterStatusUtil.Changed the Master Status page back to
/master.jspagain. Now made sure that/master-statusredirects to/master.jsp.What do you think about this?
I'll create a new Jira for the rest of the Jamon files.