Min Zhou created TAJO-611:
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Summary: (Umbrella) Service Discovery
Key: TAJO-611
URL: https://issues.apache.org/jira/browse/TAJO-611
Project: Tajo
Issue Type: New Feature
Affects Versions: 1.0-incubating
Reporter: Min Zhou
As we talked offline, high availability is one of our next goal. I'd like to
add a new feature, service discovery, to Tajo. Service discovery can help us
maintain health statuses for all daemons ( master and workers) . Meanwhile,
those daemons can find each other easily. Meanwhile, it's very useful for my
current work TAJO-540 cuz it can randomly select nodes for tajo scheduler.
One of the best candidates is Netflix Curator.
http://curator.apache.org/curator-x-discovery/index.html
I'd like to introduce Xuhui to help us with this issue. Xuhui was my colleague
at Alibaba group. He was active in Hive community, one of his job is adding
multi-distinct aggregation feature to Hive. Currently, he is a researcher work
at Microsoft.
[~mafish]
Below is comment on this issue from Xuhui
To my understanding, this feature is for high availability as well as high
scalability. We don't need to provide all machine info for every service when
tajo starts. Instead, we can dynamically register services to service discovery
if necessary. Also, if some machine fails, it can be easily detected and
replaced.
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