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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/64205/
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(Updated Nov. 30, 2017, 11:20 p.m.)


Review request for Ambari, Dmytro Grinenko, Jonathan Hurley, and Nate Cole.


Changes
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removed * import, checked on live IOP cluster


Bugs: AMBARI-22558
    https://issues.apache.org/jira/browse/AMBARI-22558


Repository: ambari


Description
-------

*STR*
# Deployed cluster with Ambari version: 2.2.0 and IOP version: 4.2.0.0
# Upgrade Ambari to Target Version: 2.5.2.0-298 | Hash: 
2453e16418fd964042452b649153dbe45f3c6009
# Upgrade Ambari to  Target Version: 2.6.1.0-64 | Hash: 
cd4db8e9ac0ea7ce14fc1253959a121688f34952
# Register HDP-2.6.4.0-51 and call remove iop-select
# Install the new HDP version bits and start Express Upgrade

*Result*
Snapshot HBase task failed with below error:
{code}
Traceback (most recent call last):
File "/var/lib/ambari-agent/cache/custom_actions/scripts/ru_execute_tasks.py", 
line 157, in <module>
ExecuteUpgradeTasks().execute()
File 
"/usr/lib/python2.6/site-packages/resource_management/libraries/script/script.py",
 line 367, in execute
method(env)
File "/var/lib/ambari-agent/cache/custom_actions/scripts/ru_execute_tasks.py", 
line 153, in actionexecute
shell.checked_call(task.command, logoutput=True, quiet=True)
File "/usr/lib/python2.6/site-packages/resource_management/core/shell.py", line 
72, in inner
result = function(command, **kwargs)
File "/usr/lib/python2.6/site-packages/resource_management/core/shell.py", line 
102, in checked_call
tries=tries, try_sleep=try_sleep, timeout_kill_strategy=timeout_kill_strategy)
File "/usr/lib/python2.6/site-packages/resource_management/core/shell.py", line 
150, in _call_wrapper
result = _call(command, **kwargs_copy)
File "/usr/lib/python2.6/site-packages/resource_management/core/shell.py", line 
303, in _call
raise ExecutionFailed(err_msg, code, out, err)
resource_management.core.exceptions.ExecutionFailed: Execution of 'source 
/var/lib/ambari-agent/ambari-env.sh ; /usr/bin/ambari-python-wrap 
/var/lib/ambari-agent/cache/stacks/BigInsights/4.2/services/HBASE/package/scripts/hbase_upgrade.py
 take_snapshot /var/lib/ambari-agent/data/command-404.json 
/var/lib/ambari-agent/cache/custom_actions 
/var/lib/ambari-agent/data/structured-out-404.json INFO 
/var/lib/ambari-agent/tmp' returned 1. 2017-11-29 07:01:50,049 - Stack Feature 
Version Info: Cluster Stack=2.6, Command Stack=None, Command Version=4.2.0.0, 
Upgrade Direction=upgrade -> 4.2.0.0
2017-11-29 07:01:50,096 - Using hadoop conf dir: 
/usr/hdp/current/hadoop-client/conf
Traceback (most recent call last):
File 
"/var/lib/ambari-agent/cache/stacks/BigInsights/4.2/services/HBASE/package/scripts/hbase_upgrade.py",
 line 37, in <module>
HbaseMasterUpgrade().execute()
File 
"/usr/lib/python2.6/site-packages/resource_management/libraries/script/script.py",
 line 367, in execute
method(env)
File 
"/var/lib/ambari-agent/cache/stacks/BigInsights/4.2/services/HBASE/package/scripts/hbase_upgrade.py",
 line 28, in take_snapshot
import params
File 
"/var/lib/ambari-agent/cache/stacks/BigInsights/4.2/services/HBASE/package/scripts/params.py",
 line 107, in <module>
regionserver_xmn_percent = 
expect("/configurations/hbase-env/hbase_regionserver_xmn_ratio", float) 
#AMBARI-15614
TypeError: 'module' object is not callable
{code}


Upon checking the code 
[here|https://github.com/hortonworks/ambari/blob/AMBARI-2.6.1.0/ambari-server/src/main/resources/stacks/BigInsights/4.2/services/HBASE/package/scripts/params.py#L30],
 the issue seems to be with import of 'expect' module

I tried the following changes in params.py:
{code}
L30: from resource_management.libraries.functions import expect
L107: regionserver_xmn_percent = 
expect.expect("/configurations/hbase-env/hbase_regionserver_xmn_ratio", float) 
#AMBARI-15614
{code}

Now the snapshot command ran fine:
{code}
2017-11-29 11:14:15,472 - Stack Feature Version Info: Cluster Stack=2.6, 
Command Stack=None, Command Version=4.2.0.0, Upgrade Direction=upgrade -> 
4.2.0.0
2017-11-29 11:14:15,474 - Using hadoop conf dir: 
/usr/hdp/current/hadoop-client/conf
2017-11-29 11:14:15,476 - checked_call['hostid'] {}
2017-11-29 11:14:15,494 - checked_call returned (0, '16ace057')
2017-11-29 11:14:15,495 - Execute[' echo 'snapshot_all' | 
/usr/iop/current/hbase-client/bin/hbase shell'] {'user': 'hbase'}
{code}


Diffs (updated)
-----

  
ambari-server/src/main/resources/stacks/BigInsights/4.2/services/HBASE/package/scripts/params.py
 c0c314d 


Diff: https://reviews.apache.org/r/64205/diff/3/

Changes: https://reviews.apache.org/r/64205/diff/2-3/


Testing
-------

mvn clean test


Thanks,

Dmitro Lisnichenko

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