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From "Lars George (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-2061) Mobile Cluster Manager
Date Mon, 21 Dec 2009 12:53:18 GMT

    [ https://issues.apache.org/jira/browse/HBASE-2061?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12793183#action_12793183

Lars George commented on HBASE-2061:


I thought about a iPhone app actually a while back but missing the API was the first issue.
If the Stargate API is platform/client independent than that is all that is needed. But a
light weight midlet is a good start of course, the former only would feel more native.

> Mobile Cluster Manager
> ----------------------
>                 Key: HBASE-2061
>                 URL: https://issues.apache.org/jira/browse/HBASE-2061
>             Project: Hadoop HBase
>          Issue Type: Wish
>            Reporter: Andrew Purtell
>            Priority: Minor
> Consider a midlet (for iPhone and Blackberry) that puts up status of HBase, HDFS, and
MapReduce services. Extend Stargate for back end support. (Support active-active failover
of Stargate service.) Visualize cluster status with a dashboard. Make the summary view fit
without needing to scroll. Summarize load with a weather motif. For detail provide a navigable
tree view: service -> rack -> server -> daemon -> resource. Display metrics and
time series graphs sourced from Ganglia/RRD in the leaves if available, with controls for
selecting metric and time range filtered for the appropriate resource or aggregate view. For
HBase, visualize region deployment and key and query densities by region; also, load and performance
metrics by region. Buttons for control actions at cluster, server, and daemon scope. Control
actions for MapReduce job tracker. Command line with auto-completion. Support a background
mode that maintains a connection open to the cluster and receives push telemetry. Optimize
communication for high latency lossy transport. (Could be based on Avro over compressed SSH
tunnelling with suitable framing and flushing.) If possible the Stargate extension should
monitor the telemetry stream and do non-parametric outlier detection (incremental LOF?). (The
cluster could help with that, look at distributed outlier detection results in the Sensor
Networks literature.) As appropriate alert the device user and provide shortcut(s) on the
dashboard to most relevant resource that supports control actions. 
> While travelling in New York I had the "opportunity" to do wizard level cluster diagnostics
and recovery over ssh on the Blackberry while sitting in Times Square. Let's just say it was
inconvenient. So the above is my wish. :-)

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