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Posted to common-commits@hadoop.apache.org by su...@apache.org on 2013/07/26 06:42:42 UTC

svn commit: r1507189 - /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/StringUtils.java

Author: suresh
Date: Fri Jul 26 04:42:41 2013
New Revision: 1507189

URL: http://svn.apache.org/r1507189
Log:
HDFS-5016. Deadlock in pipeline recovery causes Datanode to be marked dead. Contributed by Suresh Srinivas.

Modified:
    hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/StringUtils.java

Modified: hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/StringUtils.java
URL: http://svn.apache.org/viewvc/hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/StringUtils.java?rev=1507189&r1=1507188&r2=1507189&view=diff
==============================================================================
--- hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/StringUtils.java (original)
+++ hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/StringUtils.java Fri Jul 26 04:42:41 2013
@@ -907,4 +907,16 @@ public class StringUtils {
     buf.putLong(uuid.getLeastSignificantBits());
     return buf.array();
   }
+  
+  /**
+   * Get stack trace for a given thread.
+   */
+  public static String getStackTrace(Thread t) {
+    final StackTraceElement[] stackTrace = t.getStackTrace();
+    StringBuilder str = new StringBuilder();
+    for (StackTraceElement e : stackTrace) {
+      str.append(e.toString() + "\n");
+    }
+    return str.toString();
+  }
 }