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https://issues.apache.org/jira/browse/AMBARI-12205?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14606675#comment-14606675
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Alejandro Fernandez commented on AMBARI-12205:
----------------------------------------------
Verified that the patch works.
1. ZKFC is upgraded on both NameNode hosts:
Before RU:
{code}
ps -ef | grep zkfc
hdfs 2151 1 2 23:23 ? 00:00:02 /usr/jdk64/jdk1.8.0_40/bin/java
-Dproc_zkfc -Xmx1024m -Dhdp.version=2.2.7.0-2878
{code}
After RU:
{code}
ps -ef | grep zkfc
hdfs 4069 1 3 23:28 ? 00:00:02 /usr/jdk64/jdk1.8.0_40/bin/java
-Dproc_zkfc -Xmx1024m -Dhdp.version=2.3.0.0-2458
{code}
2. Logs show that host with only AMS was successful,
{code}
2015-06-29 22:43:18,046 - Attempting to determine actual version with build
number.
2015-06-29 22:43:18,047 - Old versions: []
2015-06-29 22:43:18,047 - call['hdp-select versions'] {}
2015-06-29 22:43:18,067 - call returned (1, 'Traceback (most recent call
last):\n File "/usr/bin/hdp-select", line 377, in <module>\n
printVersions()\n File "/usr/bin/hdp-select", line 232, in printVersions\n
for f in os.listdir(root):\nOSError: [Errno 2] No such file or directory:
\'/usr/hdp\'')
2015-06-29 22:43:18,067 - New versions: []
2015-06-29 22:43:18,067 - Deltas: set([])
2015-06-29 22:43:18,067 - Cannot determine a new actual version installed by
using the delta method. This is expected during additional attempts to install
packages since "hdp-select versions" will not report a new value.
2015-06-29 22:43:18,067 - This stack's root directory (/usr/hdp) is not present
on this host, so this host does not contain any versionable
components.Therefore, ignore this host and allow other hosts to report the
correct repository version.
{code}
3. Killed Flume successfully,
{code}
2015-06-29 23:47:28,428 - Execute['('kill', '-15', '11987')'] {'sudo': True}
{code}
> RU - Misc issues: ZKFC not upgraded on Standby NN; Flume kill needs signal;
> Package Installation fails when host has no Stack components
> ----------------------------------------------------------------------------------------------------------------------------------------
>
> Key: AMBARI-12205
> URL: https://issues.apache.org/jira/browse/AMBARI-12205
> Project: Ambari
> Issue Type: Bug
> Components: ambari-server
> Affects Versions: 2.1.0
> Reporter: Alejandro Fernandez
> Assignee: Alejandro Fernandez
> Priority: Critical
> Fix For: 2.1.0
>
>
> Fix 3 issues related to Rolling Upgrades.
> 1. RU orchestration first upgrades the standby NameNode, then the active.
> However, HDFS utils.py only kills ZKFC on the active NameNode; instead, this
> should be on both active and standby.
> 2. When Ambari installs the packages of an HDP repo before RU, if the host
> only has AMS, then "hdp-select versions" will not report any values.
> Technically, this is ok for this host, so Ambari should ignore this. However,
> if the host does not report any delta of versions and was not able to read a
> version from /var/lib/ambari-agent/data/repo_version_history.json and does
> contain the stack's root folder (e.g., /usr/hdp), then it should result in an
> error.
> 3. In RU, the flume stop command issues a kill, but does not supply a signal,
> such as -15
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