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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/41797/
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(Updated Дек. 30, 2015, 2:30 п.п.)
Review request for Ambari, Andrew Onischuk and Vitalyi Brodetskyi.
Bugs: AMBARI-14524
https://issues.apache.org/jira/browse/AMBARI-14524
Repository: ambari
Description
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PROBLEM: Ambari should give recommendations on this setting:
dfs.datanode.du.reserved
The default is 1GB and that is too low for a lot of our production customers.
If this is too low and the space on the datanode fills up, the nodemanagers
will start failing the health checks and we get into a bad state with not
enough nodemanagers being up. At this point the admin tries to run the balancer
and hope that it will balance very quickly.
There should be a recommendation on this value based on the disk space
available in the datanode volume. In addition, if the user sets it too low
there should be a warning saying this will cause problems if enough buffer is
not kept.
Diffs (updated)
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ambari-server/src/main/resources/common-services/HDFS/2.1.0.2.0/configuration/hdfs-site.xml
3282522
ambari-server/src/main/resources/stacks/HDP/2.0.6/services/stack_advisor.py
7e2871b
ambari-server/src/main/resources/stacks/HDP/2.2/services/stack_advisor.py
12f85b8
ambari-server/src/main/resources/stacks/HDP/2.3/services/stack_advisor.py
5ab05fd
ambari-server/src/test/python/stacks/2.0.6/common/test_stack_advisor.py
6699e94
ambari-server/src/test/python/stacks/2.1/common/test_stack_advisor.py 63d34af
ambari-server/src/test/python/stacks/2.2/common/test_stack_advisor.py 4e5458e
ambari-server/src/test/python/stacks/2.3/common/test_stack_advisor.py db61f5f
Diff: https://reviews.apache.org/r/41797/diff/
Testing
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Ran 251 tests in 8.189s
OK
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Total run:858
Total errors:0
Total failures:0
OK
Thanks,
Dmytro Sen
