HADOOP-11954. Solaris does not support RLIMIT_MEMLOCK as in Linux (Alan Burlison via aw)

hadoop-common-project/hadoop-common/CHANGES.txt

@@ -1359,6 +1359,9 @@ Release 2.8.0 - UNRELEASED
     HADOOP-9822. Create constant MAX_CAPACITY in RetryCache rather than
     hard-coding 16 in RetryCache constructor. (Tsuyoshi Ozawa via wheat9)
 
+    HADOOP-11954. Solaris does not support RLIMIT_MEMLOCK as in Linux
+    (Alan Burlison via aw)
+
   OPTIMIZATIONS
 
     HADOOP-12051. ProtobufRpcEngine.invoke() should use Exception.toString()

hadoop-common-project/hadoop-common/src/main/native/src/org/apache/hadoop/io/nativeio/NativeIO.c

@@ -1255,9 +1255,7 @@ JNIEXPORT jlong JNICALL
 Java_org_apache_hadoop_io_nativeio_NativeIO_getMemlockLimit0(
 JNIEnv *env, jclass clazz)
 {
-#ifdef WINDOWS
-  return 0;
-#else
+#ifdef RLIMIT_MEMLOCK
   struct rlimit rlim;
   int rc = getrlimit(RLIMIT_MEMLOCK, &rlim);
   if (rc != 0) {
@@ -1266,6 +1264,8 @@ JNIEnv *env, jclass clazz)
   }
   return (rlim.rlim_cur == RLIM_INFINITY) ?
     INT64_MAX : rlim.rlim_cur;
+#else
+  return 0;
 #endif
 }