[jira] [Updated] (HBASE-4393) Implement a canary monitoring program

["Matteo Bertozzi (Updated) (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HBASE-4393?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Matteo Bertozzi updated HBASE-4393:
-----------------------------------

    Attachment: HBaseCanary.java

I've attached a simple draft canary tool, that foreach table (or for the specified tables) tries to fetch a row from each region server, collects and print failures and times.

should this tool be a service that collect/expose stats for each region/column family or just a tool to get an idea on the cluster state?

In case this should be just a tool, any idea on the output format, the metrics that we want collect and output?
                
> Implement a canary monitoring program
> -------------------------------------
>
>                 Key: HBASE-4393
>                 URL: https://issues.apache.org/jira/browse/HBASE-4393
>             Project: HBase
>          Issue Type: New Feature
>          Components: monitoring
>    Affects Versions: 0.92.0
>            Reporter: Todd Lipcon
>            Assignee: Amandeep Khurana
>         Attachments: HBaseCanary.java
>
>
> This JIRA is to implement a standalone program that can be used to do "canary monitoring" of a running HBase cluster. This program would gather a list of the regions in the cluster, then iterate over them doing lightweight operations (eg short scans) to provide metrics about latency as well as alert on availability issues.

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