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From "DIPAYAN BHOWMICK (JIRA)" <j...@apache.org>
Subject [jira] [Created] (AMBARI-18316) Ambari upgrade to Ambari 2.4.0 failed during DB upgrade due to incorrect TEZ view regex
Date Tue, 06 Sep 2016 10:36:20 GMT
DIPAYAN BHOWMICK created AMBARI-18316:
-----------------------------------------

             Summary: Ambari upgrade to Ambari 2.4.0 failed during DB upgrade due to incorrect
TEZ view regex
                 Key: AMBARI-18316
                 URL: https://issues.apache.org/jira/browse/AMBARI-18316
             Project: Ambari
          Issue Type: Bug
          Components: ambari-server
    Affects Versions: 2.4.0
            Reporter: DIPAYAN BHOWMICK
            Assignee: DIPAYAN BHOWMICK
             Fix For: 2.4.1


Ambari upgrade to Ambari 2.4.0 failed during DB upgrade due to incorrect TEZ view regular
expression.  

*Steps to Reproduce*
# Install Ambari 2.2.0
# Install cluster with TEZ
# Change {{tez-site/tez.tez-ui.history-url.base}} from something like {{http://c6501.ambari.apache.org:8080/#/main/views/TEZ/0.7.0.2.3.4.0-460/TEZ_CLUSTER_INSTANCE}}
to {{http://c6501.ambari.apache.org:8080/#/main/views/TEZ/0.7.0.2.3.4.0-460/tezv1}} 
** Notice "TEZ_CLUSTER_INSTANCE" was changed to "tezv1"
# Upgrade Ambari to 2.4.0.1
# Execute {{ambari-server upgrade}}
# See error
{noformat}
Using python /usr/bin/python 
Upgrading ambari-server 
Updating properties in ambari.properties ... 
WARNING: Original file ambari-env.sh kept 
Fixing database objects owner 
Ambari Server configured for Embedded Postgres. Confirm you have made a backup of the Ambari
Server database [y/n] (y)? y 
Upgrading database schema 
Error output from schema upgrade command: 
Exception in thread "main" org.apache.ambari.server.AmbariException: Cannot prepare the new
value for property: 'tez.tez-ui.history-url.base' using the old value: 'https://c6501.ambari.apache.org:8080/#/main/views/TEZ/0.7.0.2.3.4.0-460/tezv1&#39;

at org.apache.ambari.server.upgrade.SchemaUpgradeHelper.executeDMLUpdates(SchemaUpgradeHelper.java:237)

at org.apache.ambari.server.upgrade.SchemaUpgradeHelper.main(SchemaUpgradeHelper.java:353)

Caused by: org.apache.ambari.server.AmbariException: Cannot prepare the new value for property:
'tez.tez-ui.history-url.base' using the old value: 'https://c6501.ambari.apache.org:8080/#/main/views/TEZ/0.7.0.2.3.4.0-460/tezv1&#39;

at org.apache.ambari.server.upgrade.AbstractUpgradeCatalog.getUpdatedTezHistoryUrlBase(AbstractUpgradeCatalog.java:951)

at org.apache.ambari.server.upgrade.AbstractUpgradeCatalog.updateTezHistoryUrlBase(AbstractUpgradeCatalog.java:923)

at org.apache.ambari.server.upgrade.AbstractUpgradeCatalog.upgradeData(AbstractUpgradeCatalog.java:900)

at org.apache.ambari.server.upgrade.SchemaUpgradeHelper.executeDMLUpdates(SchemaUpgradeHelper.java:234)

... 1 more 
{noformat}

*Cause*
The cause for this error is in the regular expression below:
{code:title=At or around org/apache/ambari/server/upgrade/AbstractUpgradeCatalog.java:986}
    String pattern = "(.*\\/TEZ\\/)(.*)(\\/TEZ_CLUSTER_INSTANCE)";
{code}

This pattern assumes the URL will end with "TEZ_CLUSTER_INSTANCE", however this may be changed
by the user causing a failure when matching and yielding an exception being thrown.

*Workaround*
If the Ambari server package has not yet been upgraded
# Edit the {{tez-site/tez.tez-ui.history-url.base}} config to match the pattern
# Perform the upgrade
# Edit the {{tez-site/tez.tez-ui.history-url.base}} config to fix the URL as needed

If the Ambari server package has been upgraded
# If {{ambari-server upgrade}} has been executed and failed, restore the database
# Using some database access utility (example, Toad), edit the  {{config_data}} column of
the {{clusterconfig}} table for the record that represents the _desired_ version of the {{tez-site}}
config to match the pattern
# Perform the upgrade
# Edit the {{tez-site/tez.tez-ui.history-url.base}} config to fix the URL as needed






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