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'
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'
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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