[jira] [Created] (IGNITE-5193) Hadoop: Ignite node fails to start if some , but not all HADOOP_XXX_HOME variables are set.

["Ivan Veselovsky (JIRA)" <ji...@apache.org>]

Ivan Veselovsky created IGNITE-5193:
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             Summary: Hadoop: Ignite node fails to start if some , but not all HADOOP_XXX_HOME variables are set.
                 Key: IGNITE-5193
                 URL: https://issues.apache.org/jira/browse/IGNITE-5193
             Project: Ignite
          Issue Type: Bug
          Components: hadoop
    Affects Versions: 1.8
            Reporter: Ivan Veselovsky
            Assignee: Ivan Veselovsky
             Fix For: 2.1


Ignite node fails to start if some , but not all 3 HADOOP_XXX_HOME variables are set (see trace below). This is caused by the following gap in Ignite logic: 
org.apache.ignite.internal.processors.hadoop.HadoopClasspathUtils#exists returns {true} for empty String argument. For the unset location variables the value is empty string, but {org.apache.ignite.internal.processors.hadoop.HadoopLocations#xxxxxExists} gets {true}. This is the cause of the problem.

{code}
[06:09:42] Security status [authentication=off, tls/ssl=off]
[06:17:23,822][ERROR][main][IgniteKernal] Got exception while starting (will rollback startup routine).
java.lang.RuntimeException: class org.apache.ignite.IgniteCheckedException: Failed to resolve Hadoop JAR locations: Failed to get directory files [dir=]
        at org.apache.ignite.internal.processors.hadoop.HadoopClassLoader.addHadoopUrls(HadoopClassLoader.java:422)
        at org.apache.ignite.internal.processors.hadoop.HadoopClassLoader.<init>(HadoopClassLoader.java:134)
        at org.apache.ignite.internal.processors.hadoop.HadoopHelperImpl.commonClassLoader(HadoopHelperImpl.java:78)
        at org.apache.ignite.hadoop.fs.IgniteHadoopIgfsSecondaryFileSystem.start(IgniteHadoopIgfsSecondaryFileSystem.java:254)
        at org.apache.ignite.internal.processors.igfs.IgfsImpl.<init>(IgfsImpl.java:186)
        at org.apache.ignite.internal.processors.igfs.IgfsContext.<init>(IgfsContext.java:101)
        at org.apache.ignite.internal.processors.igfs.IgfsProcessor.start(IgfsProcessor.java:128)
        at org.apache.ignite.internal.IgniteKernal.startProcessor(IgniteKernal.java:1638)
        at org.apache.ignite.internal.IgniteKernal.start(IgniteKernal.java:900)
        at org.apache.ignite.internal.IgnitionEx$IgniteNamedInstance.start0(IgnitionEx.java:1799)
        at org.apache.ignite.internal.IgnitionEx$IgniteNamedInstance.start(IgnitionEx.java:1602)
        at org.apache.ignite.internal.IgnitionEx.start0(IgnitionEx.java:1042)
        at org.apache.ignite.internal.IgnitionEx.startConfigurations(IgnitionEx.java:964)
        at org.apache.ignite.internal.IgnitionEx.start(IgnitionEx.java:850)
        at org.apache.ignite.internal.IgnitionEx.start(IgnitionEx.java:749)
        at org.apache.ignite.internal.IgnitionEx.start(IgnitionEx.java:619)
        at org.apache.ignite.internal.IgnitionEx.start(IgnitionEx.java:589)
        at org.apache.ignite.Ignition.start(Ignition.java:347)
        at org.apache.ignite.startup.cmdline.CommandLineStartup.main(CommandLineStartup.java:302)
Caused by: class org.apache.ignite.IgniteCheckedException: Failed to resolve Hadoop JAR locations: Failed to get directory files [dir=]
        at org.apache.ignite.internal.processors.hadoop.HadoopClassLoader.hadoopUrls(HadoopClassLoader.java:456)
        at org.apache.ignite.internal.processors.hadoop.HadoopClassLoader.addHadoopUrls(HadoopClassLoader.java:419)
        ... 18 more
Caused by: java.io.IOException: Failed to get directory files [dir=]
        at org.apache.ignite.internal.processors.hadoop.HadoopClasspathUtils$SearchDirectory.files(HadoopClasspathUtils.java:344)
        at org.apache.ignite.internal.processors.hadoop.HadoopClasspathUtils.classpathForClassLoader(HadoopClasspathUtils.java:68)
        at org.apache.ignite.internal.processors.hadoop.HadoopClassLoader.hadoopUrls(HadoopClassLoader.java:453)
        ... 19 more
{code}



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