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https://issues.apache.org/jira/browse/HBASE-15809?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Appy updated HBASE-15809:
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Attachment: rep_web_ui.zip
Attached rep_web_ui.zip containing frontend code (html and js).
The UI is specifically designed for scale i.e. ~500-1000 nodes cluster. At that
scale, it's impossible to put numbers/raw data in top level UI. It's rather
colorful :)
Files description:
*.csv : Fake data used for designing the Ui. Assuming cluster size of 500nodes.
*.min.js: Standard js libs
index.html: The code i wrote to generate UI from fake data. This is the main
part. Contains js too.
What's missing is backend to actually collect the data and feed into UI. We had
few general ideas, but none seemed trivial. Let me put the ones i remember here:
# UI uses ajax to query RegionServers' jmx every X sec. X depends on cluster
size and will likely be in order of minutes for 1000 node cluster. Might lead
to interesting challenges with browser. Idk.
# Each RS sends selective replication metrics to master, and UI fetches
everything in one sweep. Since data can be ~MBs for large cluster, can put
non-negligible load on master. Refresh rate of UI should be set accrodingly.
> Basic Replication WebUI
> -----------------------
>
> Key: HBASE-15809
> URL: https://issues.apache.org/jira/browse/HBASE-15809
> Project: HBase
> Issue Type: New Feature
> Components: Replication, UI
> Affects Versions: 2.0.0
> Reporter: Matteo Bertozzi
> Assignee: Appy
> Priority: Minor
> Fix For: 2.0.0, 1.5.0
>
> Attachments: HBASE-15809-v0.patch, HBASE-15809-v0.png,
> HBASE-15809-v1.patch, rep_web_ui.zip
>
>
> At the moment the only way to have some insight on replication from the webui
> is looking at zkdump and metrics.
> the basic information useful to get started debugging are: peer information
> and the view of WALs offsets for each peer.
> https://reviews.apache.org/r/47275/
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