Ted Yu created SLIDER-764:
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Summary: Provide proper response when number of good nodes is
lower than requested number of components
Key: SLIDER-764
URL: https://issues.apache.org/jira/browse/SLIDER-764
Project: Slider
Issue Type: Task
Reporter: Ted Yu
While debugging a Slider-hbase deployment problem where client retrieved
hbase-site.xml but verification of region server count failed, I found the
following in SliderAppMaster log:
{code}
2015-01-19 11:19:57,318 [AMRM Callback Handler Thread] INFO
appmaster.SliderAppMaster (SliderAppMaster.java:onNodesUpdated(1603)) - Updated
nodes [nodeId { host: "os-h2-2210-d6-sec-1421653828-hbase-slider3-1.hw.local"
port: 45454 } httpAddress:
"os-h2-2210-d6-sec-1421653828-hbase-slider3-1.hw.local:8044" rackName:
"/default-rack" used { memory: 0 virtual_cores: 0 } capability { memory:
10240 virtual_cores: 8 } node_state: NS_UNHEALTHY health_report: "2/2
local-dirs are bad: /grid/0/yarn/local,/grid/1/yarn/local; 2/2 log- dirs are
bad: /grid/0/yarn/log,/grid/1/yarn/log" last_health_report_time: 1421666370462]
{code}
In case there're not enough good nodes where requested number of components
(such as region server) can be deployed, Slider shouldn't signal deployment
success.
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