[fix][bookie] Correctly handle list configuration values - #17661
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@lhotari @eolivelli - PTAL, thanks! |
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* [fix][bookie] Correctly handle list configuration values * Remove unused import ### Motivation When the `metadataServiceUri` or the `zkServers` configuration for `BookieRackAffinityMapping` is provided as a comma delimited list, it is automatically parsed into an ArrayList by the configuration class because the Bookkeeper configuration class relies on the defaults in the `org.apache.commons.configuration.AbstractConfiguration` class. Here is a sample error: ``` 2022-07-29T19:25:43,437+0000 [main] ERROR org.apache.bookkeeper.client.RackawareEnsemblePlacementPolicyImpl - Failed to initialize DNS Resolver org.apache.pulsar.zookeeper.ZkBookieRackAffinityMapping, used default subnet resolver java.lang.ClassCastException: class java.util.ArrayList cannot be cast to class java.lang.String (java.util.ArrayList and java.lang.String are in module java.base of loader 'bootstrap') ``` Also, see #6349 and #6343 for context. ### Modifications * Move the `castToString` method out to a shared class. * Use the `castToString` method to safely get the configuration value. ### Verifying this change This PR includes a test. ### Documentation - [x] `doc-not-needed` (cherry picked from commit 69deb1f)
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* [fix][bookie] Correctly handle list configuration values * Remove unused import ### Motivation When the `metadataServiceUri` or the `zkServers` configuration for `BookieRackAffinityMapping` is provided as a comma delimited list, it is automatically parsed into an ArrayList by the configuration class because the Bookkeeper configuration class relies on the defaults in the `org.apache.commons.configuration.AbstractConfiguration` class. Here is a sample error: ``` 2022-07-29T19:25:43,437+0000 [main] ERROR org.apache.bookkeeper.client.RackawareEnsemblePlacementPolicyImpl - Failed to initialize DNS Resolver org.apache.pulsar.zookeeper.ZkBookieRackAffinityMapping, used default subnet resolver java.lang.ClassCastException: class java.util.ArrayList cannot be cast to class java.lang.String (java.util.ArrayList and java.lang.String are in module java.base of loader 'bootstrap') ``` Also, see #6349 and #6343 for context. ### Modifications * Move the `castToString` method out to a shared class. * Use the `castToString` method to safely get the configuration value. ### Verifying this change This PR includes a test. ### Documentation - [x] `doc-not-needed` (cherry picked from commit 69deb1f)
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* [fix][bookie] Correctly handle list configuration values * Remove unused import ### Motivation When the `metadataServiceUri` or the `zkServers` configuration for `BookieRackAffinityMapping` is provided as a comma delimited list, it is automatically parsed into an ArrayList by the configuration class because the Bookkeeper configuration class relies on the defaults in the `org.apache.commons.configuration.AbstractConfiguration` class. Here is a sample error: ``` 2022-07-29T19:25:43,437+0000 [main] ERROR org.apache.bookkeeper.client.RackawareEnsemblePlacementPolicyImpl - Failed to initialize DNS Resolver org.apache.pulsar.zookeeper.ZkBookieRackAffinityMapping, used default subnet resolver java.lang.ClassCastException: class java.util.ArrayList cannot be cast to class java.lang.String (java.util.ArrayList and java.lang.String are in module java.base of loader 'bootstrap') ``` Also, see apache#6349 and apache#6343 for context. ### Modifications * Move the `castToString` method out to a shared class. * Use the `castToString` method to safely get the configuration value. ### Verifying this change This PR includes a test. ### Documentation - [x] `doc-not-needed` (cherry picked from commit 69deb1f) (cherry picked from commit 9759815)
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Motivation
When the
metadataServiceUrior thezkServersconfiguration forBookieRackAffinityMappingis provided as a comma delimited list, it is automatically parsed into an ArrayList by the configuration class because the Bookkeeper configuration class relies on the defaults in theorg.apache.commons.configuration.AbstractConfigurationclass. Here is a sample error:Also, see #6349 and #6343 for context.
Modifications
castToStringmethod out to a shared class.castToStringmethod to safely get the configuration value.Verifying this change
This PR includes a test.
Documentation
doc-not-needed