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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DRILL-5547) Drill config options and session options do not work as intended
Date Tue, 11 Jul 2017 23:55:01 GMT

    [ https://issues.apache.org/jira/browse/DRILL-5547?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16083198#comment-16083198

ASF GitHub Bot commented on DRILL-5547:

Github user paul-rogers commented on a diff in the pull request:

    --- Diff: exec/java-exec/src/main/java/org/apache/drill/exec/server/options/OptionValidator.java
    @@ -106,4 +107,16 @@ public boolean isAdminOption() {
       public abstract Kind getKind();
    +  /**
    +   * Gets the default result option value for this validator.
    +   *
    +   * @return result default option value
    +   */
    +  public abstract OptionValue loadConfigDefault(DrillConfig bootConfig, String name,
String configPath);
    --- End diff --
    Passing in the config is file. Bug, shouldn't the name and config path already be known?
The name is the config property name (in most cases) isn't it? The path is fixed and can be
    I'd have thought that we'd declare validators something like this:
    public static FOO_VALIDATOR = new StringValidator("exec.foo");
    public static BAR_VALIDATOR = new IntValidator("exec.bar", "drill.non.standard.name.bar");
    Since the validator is given the name, it need not ask for it again here, it would seem...

> Drill config options and session options do not work as intended
> ----------------------------------------------------------------
>                 Key: DRILL-5547
>                 URL: https://issues.apache.org/jira/browse/DRILL-5547
>             Project: Apache Drill
>          Issue Type: Bug
>          Components:  Server
>    Affects Versions: 1.10.0
>            Reporter: Karthikeyan Manivannan
>            Assignee: Venkata Jyothsna Donapati
>             Fix For: Future
> In Drill, session options should take precedence over config options. But several of
these session options are assigned hard-coded default values when the option validators are
initialized. Because of this config options will never be read and honored even if the user
did not specify the session option. 
> ClassCompilerSelector.JAVA_COMPILER_VALIDATOR uses CompilerPolicy.DEFAULT as the default
value. This default value gets into the session options map via the initialization of validators
in SystemOptionManager. 
> Now any piece of code that tries to check if a session option is set will never see a
null, so it will always use that value and never try to look into the config options. For
example, in the following piece of code from ClassCompilerSelector (), the policy will never
be read from the config file.
> policy = CompilerPolicy.valueOf((value != null) ? value.string_val.toUpperCase() : config.getString(JAVA_COMPILER_CONFIG).toUpperCase());

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