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https://issues.apache.org/jira/browse/TAJO-2188?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16541117#comment-16541117
]
ASF GitHub Bot commented on TAJO-2188:
--------------------------------------
jinossy closed pull request #1054: TAJO-2188: Can't start tajo daemon on HDP,CDH
URL: https://github.com/apache/tajo/pull/1054
This is a PR merged from a forked repository.
As GitHub hides the original diff on merge, it is displayed below for
the sake of provenance:
As this is a foreign pull request (from a fork), the diff is supplied
below (as it won't show otherwise due to GitHub magic):
diff --git a/tajo-common/src/main/java/org/apache/tajo/util/ClassUtil.java
b/tajo-common/src/main/java/org/apache/tajo/util/ClassUtil.java
index c93b751a17..d85ce9d934 100644
--- a/tajo-common/src/main/java/org/apache/tajo/util/ClassUtil.java
+++ b/tajo-common/src/main/java/org/apache/tajo/util/ClassUtil.java
@@ -57,8 +57,11 @@
private static void findClasses(Set<Class> matchedClassSet, File root, File
file, boolean includeJars,
@Nullable Class type, String packageFilter,
@Nullable Predicate predicate) {
if (file.isDirectory()) {
- for (File child : file.listFiles()) {
- findClasses(matchedClassSet, root, child, includeJars, type,
packageFilter, predicate);
+ File[] children = file.listFiles();
+ if (children != null) {
+ for (File child : children) {
+ findClasses(matchedClassSet, root, child, includeJars, type,
packageFilter, predicate);
+ }
}
} else {
if (file.getName().toLowerCase().endsWith(".jar") && includeJars) {
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> Can't start tajo daemon on HDP,CDH
> ----------------------------------
>
> Key: TAJO-2188
> URL: https://issues.apache.org/jira/browse/TAJO-2188
> Project: Tajo
> Issue Type: Bug
> Components: TajoMaster, Worker
> Affects Versions: 0.12.0
> Environment: HDP,CDH
> Reporter: Jinho Kim
> Assignee: Jinho Kim
> Priority: Minor
>
> File.listFiles() returns null, if does not have read access
> Here is the log
> {code}
> 2018-07-05 19:23:21,317 INFO org.apache.tajo.master.TajoMaster: Staging dir:
> hdfs://xxx/tajo/warehouse 2018-07-05 19:23:21,414 INFO
> org.apache.hadoop.service.AbstractService: Service
> org.apache.tajo.master.TajoMaster failed in state INITED; cause:
> java.lang.NullPointerException java.lang.NullPointerException at
> org.apache.tajo.util.ClassUtil.findClasses(ClassUtil.java:60) at
> org.apache.tajo.util.ClassUtil.findClasses(ClassUtil.java:61) at
> org.apache.tajo.util.ClassUtil.findClasses(ClassUtil.java:50) at
> org.apache.tajo.util.ClassUtil.findClasses(ClassUtil.java:38) at
> org.apache.tajo.rule.base.BaseRuleProvider.getDefinedRules(BaseRuleProvider.java:38)
> at
> org.apache.tajo.rule.SelfDiagnosisRuleEngine.loadPredefinedRules(SelfDiagnosisRuleEngine.java:83)
> at
> org.apache.tajo.rule.SelfDiagnosisRuleEngine.<init>(SelfDiagnosisRuleEngine.java:30)
> at
> org.apache.tajo.rule.SelfDiagnosisRuleEngine.getInstance(SelfDiagnosisRuleEngine.java:37)
> at org.apache.tajo.master.TajoMaster.diagnoseTajoMaster(TajoMaster.java:324)
> at org.apache.tajo.master.TajoMaster.serviceInit(TajoMaster.java:179) at
> org.apache.hadoop.service.AbstractService.init(AbstractService.java:163) at
> org.apache.tajo.master.TajoMaster.main(TajoMaster.java:627) 2018-07-05
> 19:23:21,417 INFO org.apache.tajo.master.TajoMaster: Tajo Master main thread
> exiting 2018-07-05 19:23:21,417 FATAL org.apache.tajo.master.TajoMaster:
> Error starting TajoMaster java.lang.NullPointerException at
> org.apache.tajo.util.ClassUtil.findClasses(ClassUtil.java:60) at
> org.apache.tajo.util.ClassUtil.findClasses(ClassUtil.java:61) at
> org.apache.tajo.util.ClassUtil.findClasses(ClassUtil.java:50) at
> org.apache.tajo.util.ClassUtil.findClasses(ClassUtil.java:38) at
> org.apache.tajo.rule.base.BaseRuleProvider.getDefinedRules(BaseRuleProvider.java:38)
> at
> org.apache.tajo.rule.SelfDiagnosisRuleEngine.loadPredefinedRules(SelfDiagnosisRuleEngine.java:83)
> at
> org.apache.tajo.rule.SelfDiagnosisRuleEngine.<init>(SelfDiagnosisRuleEngine.java:30)
> at
> org.apache.tajo.rule.SelfDiagnosisRuleEngine.getInstance(SelfDiagnosisRuleEngine.java:37)
> at org.apache.tajo.master.TajoMaster.diagnoseTajoMaster(TajoMaster.java:324)
> at org.apache.tajo.master.TajoMaster.serviceInit(TajoMaster.java:179) at
> org.apache.hadoop.service.AbstractService.init(AbstractService.java:163) at
> org.apache.tajo.master.TajoMaster.main(TajoMaster.java:627) 2018-07-05
> 19:23:21,524 INFO org.apache.tajo.master.TajoMaster: SHUTDOWN_MSG:
> {code}
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