HADOOP-7824. NativeIO.java flags and identifiers must be set correctly for each platform, not hardcoded to their Linux values (Martin Walsh via Colin P. McCabe)

This commit is contained in:
Colin Patrick Mccabe 2015-07-31 14:55:14 -07:00
parent a890a31529
commit 21d10ccc6e
10 changed files with 231 additions and 136 deletions

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@ -1033,6 +1033,10 @@ Release 2.8.0 - UNRELEASED
HADOOP-10945. 4-digit octal umask permissions throws a parse error (Chang
Li via jlowe)
HADOOP-7824. NativeIO.java flags and identifiers must be set correctly for
each platform, not hardcoded to their Linux values (Martin Walsh via Colin
P. McCabe)
Release 2.7.2 - UNRELEASED
INCOMPATIBLE CHANGES

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@ -29,6 +29,8 @@ import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
import org.apache.hadoop.io.nativeio.NativeIO;
import static org.apache.hadoop.io.nativeio.NativeIO.POSIX.POSIX_FADV_WILLNEED;
import com.google.common.base.Preconditions;
import com.google.common.util.concurrent.ThreadFactoryBuilder;
@ -204,7 +206,7 @@ public class ReadaheadPool {
// other FD, which may be wasted work, but won't cause a problem.
try {
NativeIO.POSIX.getCacheManipulator().posixFadviseIfPossible(identifier,
fd, off, len, NativeIO.POSIX.POSIX_FADV_WILLNEED);
fd, off, len, POSIX_FADV_WILLNEED);
} catch (IOException ioe) {
if (canceled) {
// no big deal - the reader canceled the request and closed

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@ -56,51 +56,54 @@ import com.google.common.annotations.VisibleForTesting;
@InterfaceStability.Unstable
public class NativeIO {
public static class POSIX {
// Flags for open() call from bits/fcntl.h
public static final int O_RDONLY = 00;
public static final int O_WRONLY = 01;
public static final int O_RDWR = 02;
public static final int O_CREAT = 0100;
public static final int O_EXCL = 0200;
public static final int O_NOCTTY = 0400;
public static final int O_TRUNC = 01000;
public static final int O_APPEND = 02000;
public static final int O_NONBLOCK = 04000;
public static final int O_SYNC = 010000;
// Flags for open() call from bits/fcntl.h - Set by JNI
public static int O_RDONLY = -1;
public static int O_WRONLY = -1;
public static int O_RDWR = -1;
public static int O_CREAT = -1;
public static int O_EXCL = -1;
public static int O_NOCTTY = -1;
public static int O_TRUNC = -1;
public static int O_APPEND = -1;
public static int O_NONBLOCK = -1;
public static int O_SYNC = -1;
// Flags for posix_fadvise() from bits/fcntl.h
// Flags for posix_fadvise() from bits/fcntl.h - Set by JNI
/* No further special treatment. */
public static final int POSIX_FADV_NORMAL = 0;
public static int POSIX_FADV_NORMAL = -1;
/* Expect random page references. */
public static final int POSIX_FADV_RANDOM = 1;
public static int POSIX_FADV_RANDOM = -1;
/* Expect sequential page references. */
public static final int POSIX_FADV_SEQUENTIAL = 2;
public static int POSIX_FADV_SEQUENTIAL = -1;
/* Will need these pages. */
public static final int POSIX_FADV_WILLNEED = 3;
public static int POSIX_FADV_WILLNEED = -1;
/* Don't need these pages. */
public static final int POSIX_FADV_DONTNEED = 4;
public static int POSIX_FADV_DONTNEED = -1;
/* Data will be accessed once. */
public static final int POSIX_FADV_NOREUSE = 5;
public static int POSIX_FADV_NOREUSE = -1;
// Updated by JNI when supported by glibc. Leave defaults in case kernel
// supports sync_file_range, but glibc does not.
/* Wait upon writeout of all pages
in the range before performing the
write. */
public static final int SYNC_FILE_RANGE_WAIT_BEFORE = 1;
public static int SYNC_FILE_RANGE_WAIT_BEFORE = 1;
/* Initiate writeout of all those
dirty pages in the range which are
not presently under writeback. */
public static final int SYNC_FILE_RANGE_WRITE = 2;
public static int SYNC_FILE_RANGE_WRITE = 2;
/* Wait upon writeout of all pages in
the range after performing the
write. */
public static final int SYNC_FILE_RANGE_WAIT_AFTER = 4;
public static int SYNC_FILE_RANGE_WAIT_AFTER = 4;
private static final Log LOG = LogFactory.getLog(NativeIO.class);
// Set to true via JNI if possible
public static boolean fadvisePossible = false;
private static boolean nativeLoaded = false;
private static boolean fadvisePossible = true;
private static boolean syncFileRangePossible = true;
static final String WORKAROUND_NON_THREADSAFE_CALLS_KEY =
@ -262,8 +265,6 @@ public class NativeIO {
if (nativeLoaded && fadvisePossible) {
try {
posix_fadvise(fd, offset, len, flags);
} catch (UnsupportedOperationException uoe) {
fadvisePossible = false;
} catch (UnsatisfiedLinkError ule) {
fadvisePossible = false;
}
@ -344,21 +345,21 @@ public class NativeIO {
private String owner, group;
private int mode;
// Mode constants
public static final int S_IFMT = 0170000; /* type of file */
public static final int S_IFIFO = 0010000; /* named pipe (fifo) */
public static final int S_IFCHR = 0020000; /* character special */
public static final int S_IFDIR = 0040000; /* directory */
public static final int S_IFBLK = 0060000; /* block special */
public static final int S_IFREG = 0100000; /* regular */
public static final int S_IFLNK = 0120000; /* symbolic link */
public static final int S_IFSOCK = 0140000; /* socket */
public static final int S_ISUID = 0004000; /* set user id on execution */
public static final int S_ISGID = 0002000; /* set group id on execution */
public static final int S_ISVTX = 0001000; /* save swapped text even after use */
public static final int S_IRUSR = 0000400; /* read permission, owner */
public static final int S_IWUSR = 0000200; /* write permission, owner */
public static final int S_IXUSR = 0000100; /* execute/search permission, owner */
// Mode constants - Set by JNI
public static int S_IFMT = -1; /* type of file */
public static int S_IFIFO = -1; /* named pipe (fifo) */
public static int S_IFCHR = -1; /* character special */
public static int S_IFDIR = -1; /* directory */
public static int S_IFBLK = -1; /* block special */
public static int S_IFREG = -1; /* regular */
public static int S_IFLNK = -1; /* symbolic link */
public static int S_IFSOCK = -1; /* socket */
public static int S_ISUID = -1; /* set user id on execution */
public static int S_ISGID = -1; /* set group id on execution */
public static int S_ISVTX = -1; /* save swapped text even after use */
public static int S_IRUSR = -1; /* read permission, owner */
public static int S_IWUSR = -1; /* write permission, owner */
public static int S_IXUSR = -1; /* execute/search permission, owner */
Stat(int ownerId, int groupId, int mode) {
this.ownerId = ownerId;

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@ -58,6 +58,15 @@
#define MMAP_PROT_WRITE org_apache_hadoop_io_nativeio_NativeIO_POSIX_MMAP_PROT_WRITE
#define MMAP_PROT_EXEC org_apache_hadoop_io_nativeio_NativeIO_POSIX_MMAP_PROT_EXEC
#define NATIVE_IO_POSIX_CLASS "org/apache/hadoop/io/nativeio/NativeIO$POSIX"
#define NATIVE_IO_STAT_CLASS "org/apache/hadoop/io/nativeio/NativeIO$POSIX$Stat"
#define SET_INT_OR_RETURN(E, C, F) \
{ \
setStaticInt(E, C, #F, F); \
if ((*E)->ExceptionCheck(E)) return; \
}
// the NativeIO$POSIX$Stat inner class and its constructor
static jclass stat_clazz;
static jmethodID stat_ctor;
@ -101,12 +110,90 @@ static int workaround_non_threadsafe_calls(JNIEnv *env, jclass clazz) {
return result;
}
/**
* Sets a static boolean field to the specified value.
*/
static void setStaticBoolean(JNIEnv *env, jclass clazz, char *field,
jboolean val) {
jfieldID fid = (*env)->GetStaticFieldID(env, clazz, field, "Z");
if (fid != NULL) {
(*env)->SetStaticBooleanField(env, clazz, fid, val);
}
}
/**
* Sets a static int field to the specified value.
*/
static void setStaticInt(JNIEnv *env, jclass clazz, char *field,
jint val) {
jfieldID fid = (*env)->GetStaticFieldID(env, clazz, field, "I");
if (fid != NULL) {
(*env)->SetStaticIntField(env, clazz, fid, val);
}
}
/**
* Initialises a list of java constants that are platform specific.
* These are only initialized in UNIX.
* Any exceptions that occur will be dealt at the level above.
**/
static void consts_init(JNIEnv *env) {
jclass clazz = (*env)->FindClass(env, NATIVE_IO_POSIX_CLASS);
if (clazz == NULL) {
return; // exception has been raised
}
SET_INT_OR_RETURN(env, clazz, O_RDONLY);
SET_INT_OR_RETURN(env, clazz, O_WRONLY);
SET_INT_OR_RETURN(env, clazz, O_RDWR);
SET_INT_OR_RETURN(env, clazz, O_CREAT);
SET_INT_OR_RETURN(env, clazz, O_EXCL);
SET_INT_OR_RETURN(env, clazz, O_NOCTTY);
SET_INT_OR_RETURN(env, clazz, O_TRUNC);
SET_INT_OR_RETURN(env, clazz, O_APPEND);
SET_INT_OR_RETURN(env, clazz, O_NONBLOCK);
SET_INT_OR_RETURN(env, clazz, O_SYNC);
#ifdef HAVE_POSIX_FADVISE
setStaticBoolean(env, clazz, "fadvisePossible", JNI_TRUE);
SET_INT_OR_RETURN(env, clazz, POSIX_FADV_NORMAL);
SET_INT_OR_RETURN(env, clazz, POSIX_FADV_RANDOM);
SET_INT_OR_RETURN(env, clazz, POSIX_FADV_SEQUENTIAL);
SET_INT_OR_RETURN(env, clazz, POSIX_FADV_WILLNEED);
SET_INT_OR_RETURN(env, clazz, POSIX_FADV_DONTNEED);
SET_INT_OR_RETURN(env, clazz, POSIX_FADV_NOREUSE);
#else
setStaticBoolean(env, clazz, "fadvisePossible", JNI_FALSE);
#endif
#ifdef HAVE_SYNC_FILE_RANGE
SET_INT_OR_RETURN(env, clazz, SYNC_FILE_RANGE_WAIT_BEFORE);
SET_INT_OR_RETURN(env, clazz, SYNC_FILE_RANGE_WRITE);
SET_INT_OR_RETURN(env, clazz, SYNC_FILE_RANGE_WAIT_AFTER);
#endif
clazz = (*env)->FindClass(env, NATIVE_IO_STAT_CLASS);
if (clazz == NULL) {
return; // exception has been raised
}
SET_INT_OR_RETURN(env, clazz, S_IFMT);
SET_INT_OR_RETURN(env, clazz, S_IFIFO);
SET_INT_OR_RETURN(env, clazz, S_IFCHR);
SET_INT_OR_RETURN(env, clazz, S_IFDIR);
SET_INT_OR_RETURN(env, clazz, S_IFBLK);
SET_INT_OR_RETURN(env, clazz, S_IFREG);
SET_INT_OR_RETURN(env, clazz, S_IFLNK);
SET_INT_OR_RETURN(env, clazz, S_IFSOCK);
SET_INT_OR_RETURN(env, clazz, S_ISUID);
SET_INT_OR_RETURN(env, clazz, S_ISGID);
SET_INT_OR_RETURN(env, clazz, S_ISVTX);
SET_INT_OR_RETURN(env, clazz, S_IRUSR);
SET_INT_OR_RETURN(env, clazz, S_IWUSR);
SET_INT_OR_RETURN(env, clazz, S_IXUSR);
}
static void stat_init(JNIEnv *env, jclass nativeio_class) {
jclass clazz = NULL;
jclass obj_class = NULL;
jmethodID obj_ctor = NULL;
// Init Stat
clazz = (*env)->FindClass(env, "org/apache/hadoop/io/nativeio/NativeIO$POSIX$Stat");
clazz = (*env)->FindClass(env, NATIVE_IO_STAT_CLASS);
if (!clazz) {
return; // exception has been raised
}
@ -180,39 +267,6 @@ static void nioe_deinit(JNIEnv *env) {
nioe_ctor = NULL;
}
/*
* Compatibility mapping for fadvise flags. Return the proper value from fnctl.h.
* If the value is not known, return the argument unchanged.
*/
static int map_fadvise_flag(jint flag) {
#ifdef HAVE_POSIX_FADVISE
switch(flag) {
case org_apache_hadoop_io_nativeio_NativeIO_POSIX_POSIX_FADV_NORMAL:
return POSIX_FADV_NORMAL;
break;
case org_apache_hadoop_io_nativeio_NativeIO_POSIX_POSIX_FADV_RANDOM:
return POSIX_FADV_RANDOM;
break;
case org_apache_hadoop_io_nativeio_NativeIO_POSIX_POSIX_FADV_SEQUENTIAL:
return POSIX_FADV_SEQUENTIAL;
break;
case org_apache_hadoop_io_nativeio_NativeIO_POSIX_POSIX_FADV_WILLNEED:
return POSIX_FADV_WILLNEED;
break;
case org_apache_hadoop_io_nativeio_NativeIO_POSIX_POSIX_FADV_DONTNEED:
return POSIX_FADV_DONTNEED;
break;
case org_apache_hadoop_io_nativeio_NativeIO_POSIX_POSIX_FADV_NOREUSE:
return POSIX_FADV_NOREUSE;
break;
default:
return flag;
}
#else
return flag;
#endif
}
/*
* private static native void initNative();
*
@ -223,6 +277,10 @@ static int map_fadvise_flag(jint flag) {
JNIEXPORT void JNICALL
Java_org_apache_hadoop_io_nativeio_NativeIO_initNative(
JNIEnv *env, jclass clazz) {
#ifdef UNIX
consts_init(env);
PASS_EXCEPTIONS_GOTO(env, error);
#endif
stat_init(env, clazz);
PASS_EXCEPTIONS_GOTO(env, error);
nioe_init(env);
@ -345,7 +403,7 @@ Java_org_apache_hadoop_io_nativeio_NativeIO_00024POSIX_posix_1fadvise(
PASS_EXCEPTIONS(env);
int err = 0;
if ((err = posix_fadvise(fd, (off_t)offset, (off_t)len, map_fadvise_flag(flags)))) {
if ((err = posix_fadvise(fd, (off_t)offset, (off_t)len, flags))) {
#ifdef __FreeBSD__
throw_ioe(env, errno);
#else
@ -448,22 +506,6 @@ Java_org_apache_hadoop_io_nativeio_NativeIO_00024POSIX_mlock_1native(
#endif
}
#ifdef __FreeBSD__
static int toFreeBSDFlags(int flags)
{
int rc = flags & 03;
if ( flags & 0100 ) rc |= O_CREAT;
if ( flags & 0200 ) rc |= O_EXCL;
if ( flags & 0400 ) rc |= O_NOCTTY;
if ( flags & 01000 ) rc |= O_TRUNC;
if ( flags & 02000 ) rc |= O_APPEND;
if ( flags & 04000 ) rc |= O_NONBLOCK;
if ( flags &010000 ) rc |= O_SYNC;
if ( flags &020000 ) rc |= O_ASYNC;
return rc;
}
#endif
/*
* Class: org_apache_hadoop_io_nativeio_NativeIO_POSIX
* Method: open
@ -479,9 +521,6 @@ Java_org_apache_hadoop_io_nativeio_NativeIO_00024POSIX_open(
jint flags, jint mode)
{
#ifdef UNIX
#ifdef __FreeBSD__
flags = toFreeBSDFlags(flags);
#endif
jobject ret = NULL;
const char *path = (*env)->GetStringUTFChars(env, j_path, NULL);

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@ -55,6 +55,9 @@ import org.apache.hadoop.security.UserGroupInformation;
import org.apache.hadoop.util.NativeCodeLoader;
import org.apache.hadoop.util.Time;
import static org.apache.hadoop.io.nativeio.NativeIO.POSIX.*;
import static org.apache.hadoop.io.nativeio.NativeIO.POSIX.Stat.*;
public class TestNativeIO {
static final Log LOG = LogFactory.getLog(TestNativeIO.class);
@ -93,9 +96,8 @@ public class TestNativeIO {
assertEquals(expectedOwner, owner);
assertNotNull(stat.getGroup());
assertTrue(!stat.getGroup().isEmpty());
assertEquals("Stat mode field should indicate a regular file",
NativeIO.POSIX.Stat.S_IFREG,
stat.getMode() & NativeIO.POSIX.Stat.S_IFMT);
assertEquals("Stat mode field should indicate a regular file", S_IFREG,
stat.getMode() & S_IFMT);
}
/**
@ -128,8 +130,7 @@ public class TestNativeIO {
assertNotNull(stat.getGroup());
assertTrue(!stat.getGroup().isEmpty());
assertEquals("Stat mode field should indicate a regular file",
NativeIO.POSIX.Stat.S_IFREG,
stat.getMode() & NativeIO.POSIX.Stat.S_IFMT);
S_IFREG, stat.getMode() & S_IFMT);
} catch (Throwable t) {
thrown.set(t);
}
@ -338,8 +339,7 @@ public class TestNativeIO {
LOG.info("Open a missing file without O_CREAT and it should fail");
try {
FileDescriptor fd = NativeIO.POSIX.open(
new File(TEST_DIR, "doesntexist").getAbsolutePath(),
NativeIO.POSIX.O_WRONLY, 0700);
new File(TEST_DIR, "doesntexist").getAbsolutePath(), O_WRONLY, 0700);
fail("Able to open a new file without O_CREAT");
} catch (NativeIOException nioe) {
LOG.info("Got expected exception", nioe);
@ -356,7 +356,7 @@ public class TestNativeIO {
LOG.info("Test creating a file with O_CREAT");
FileDescriptor fd = NativeIO.POSIX.open(
new File(TEST_DIR, "testWorkingOpen").getAbsolutePath(),
NativeIO.POSIX.O_WRONLY | NativeIO.POSIX.O_CREAT, 0700);
O_WRONLY | O_CREAT, 0700);
assertNotNull(true);
assertTrue(fd.valid());
FileOutputStream fos = new FileOutputStream(fd);
@ -369,7 +369,7 @@ public class TestNativeIO {
try {
fd = NativeIO.POSIX.open(
new File(TEST_DIR, "testWorkingOpen").getAbsolutePath(),
NativeIO.POSIX.O_WRONLY | NativeIO.POSIX.O_CREAT | NativeIO.POSIX.O_EXCL, 0700);
O_WRONLY | O_CREAT | O_EXCL, 0700);
fail("Was able to create existing file with O_EXCL");
} catch (NativeIOException nioe) {
LOG.info("Got expected exception for failed exclusive create", nioe);
@ -390,7 +390,7 @@ public class TestNativeIO {
for (int i = 0; i < 10000; i++) {
FileDescriptor fd = NativeIO.POSIX.open(
new File(TEST_DIR, "testNoFdLeak").getAbsolutePath(),
NativeIO.POSIX.O_WRONLY | NativeIO.POSIX.O_CREAT, 0700);
O_WRONLY | O_CREAT, 0700);
assertNotNull(true);
assertTrue(fd.valid());
FileOutputStream fos = new FileOutputStream(fd);
@ -436,8 +436,7 @@ public class TestNativeIO {
FileInputStream fis = new FileInputStream("/dev/zero");
try {
NativeIO.POSIX.posix_fadvise(
fis.getFD(), 0, 0,
NativeIO.POSIX.POSIX_FADV_SEQUENTIAL);
fis.getFD(), 0, 0, POSIX_FADV_SEQUENTIAL);
} catch (UnsupportedOperationException uoe) {
// we should just skip the unit test on machines where we don't
// have fadvise support
@ -450,20 +449,14 @@ public class TestNativeIO {
}
try {
NativeIO.POSIX.posix_fadvise(
fis.getFD(), 0, 1024,
NativeIO.POSIX.POSIX_FADV_SEQUENTIAL);
NativeIO.POSIX.posix_fadvise(fis.getFD(), 0, 1024, POSIX_FADV_SEQUENTIAL);
fail("Did not throw on bad file");
} catch (NativeIOException nioe) {
assertEquals(Errno.EBADF, nioe.getErrno());
}
try {
NativeIO.POSIX.posix_fadvise(
null, 0, 1024,
NativeIO.POSIX.POSIX_FADV_SEQUENTIAL);
NativeIO.POSIX.posix_fadvise(null, 0, 1024, POSIX_FADV_SEQUENTIAL);
fail("Did not throw on null file");
} catch (NullPointerException npe) {
// expected
@ -476,9 +469,8 @@ public class TestNativeIO {
new File(TEST_DIR, "testSyncFileRange"));
try {
fos.write("foo".getBytes());
NativeIO.POSIX.sync_file_range(
fos.getFD(), 0, 1024,
NativeIO.POSIX.SYNC_FILE_RANGE_WRITE);
NativeIO.POSIX.sync_file_range(fos.getFD(), 0, 1024,
SYNC_FILE_RANGE_WRITE);
// no way to verify that this actually has synced,
// but if it doesn't throw, we can assume it worked
} catch (UnsupportedOperationException uoe) {
@ -489,9 +481,8 @@ public class TestNativeIO {
fos.close();
}
try {
NativeIO.POSIX.sync_file_range(
fos.getFD(), 0, 1024,
NativeIO.POSIX.SYNC_FILE_RANGE_WRITE);
NativeIO.POSIX.sync_file_range(fos.getFD(), 0, 1024,
SYNC_FILE_RANGE_WRITE);
fail("Did not throw on bad file");
} catch (NativeIOException nioe) {
assertEquals(Errno.EBADF, nioe.getErrno());
@ -657,4 +648,51 @@ public class TestNativeIO {
FileUtils.deleteQuietly(TEST_DIR);
}
}
@Test (timeout=10000)
public void testNativePosixConsts() {
assumeTrue("Native POSIX constants not required for Windows",
!Path.WINDOWS);
assertTrue("Native 0_RDONLY const not set", O_RDONLY >= 0);
assertTrue("Native 0_WRONLY const not set", O_WRONLY >= 0);
assertTrue("Native 0_RDWR const not set", O_RDWR >= 0);
assertTrue("Native 0_CREAT const not set", O_CREAT >= 0);
assertTrue("Native 0_EXCL const not set", O_EXCL >= 0);
assertTrue("Native 0_NOCTTY const not set", O_NOCTTY >= 0);
assertTrue("Native 0_TRUNC const not set", O_TRUNC >= 0);
assertTrue("Native 0_APPEND const not set", O_APPEND >= 0);
assertTrue("Native 0_NONBLOCK const not set", O_NONBLOCK >= 0);
assertTrue("Native 0_SYNC const not set", O_SYNC >= 0);
assertTrue("Native S_IFMT const not set", S_IFMT >= 0);
assertTrue("Native S_IFIFO const not set", S_IFIFO >= 0);
assertTrue("Native S_IFCHR const not set", S_IFCHR >= 0);
assertTrue("Native S_IFDIR const not set", S_IFDIR >= 0);
assertTrue("Native S_IFBLK const not set", S_IFBLK >= 0);
assertTrue("Native S_IFREG const not set", S_IFREG >= 0);
assertTrue("Native S_IFLNK const not set", S_IFLNK >= 0);
assertTrue("Native S_IFSOCK const not set", S_IFSOCK >= 0);
assertTrue("Native S_ISUID const not set", S_ISUID >= 0);
assertTrue("Native S_ISGID const not set", S_ISGID >= 0);
assertTrue("Native S_ISVTX const not set", S_ISVTX >= 0);
assertTrue("Native S_IRUSR const not set", S_IRUSR >= 0);
assertTrue("Native S_IWUSR const not set", S_IWUSR >= 0);
assertTrue("Native S_IXUSR const not set", S_IXUSR >= 0);
}
@Test (timeout=10000)
public void testNativeFadviseConsts() {
assumeTrue("Fadvise constants not supported", fadvisePossible);
assertTrue("Native POSIX_FADV_NORMAL const not set",
POSIX_FADV_NORMAL >= 0);
assertTrue("Native POSIX_FADV_RANDOM const not set",
POSIX_FADV_RANDOM >= 0);
assertTrue("Native POSIX_FADV_SEQUENTIAL const not set",
POSIX_FADV_SEQUENTIAL >= 0);
assertTrue("Native POSIX_FADV_WILLNEED const not set",
POSIX_FADV_WILLNEED >= 0);
assertTrue("Native POSIX_FADV_DONTNEED const not set",
POSIX_FADV_DONTNEED >= 0);
assertTrue("Native POSIX_FADV_NOREUSE const not set",
POSIX_FADV_NOREUSE >= 0);
}
}

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@ -58,6 +58,9 @@ import org.apache.hadoop.util.DataChecksum;
import org.apache.hadoop.util.StringUtils;
import org.apache.hadoop.util.Time;
import static org.apache.hadoop.io.nativeio.NativeIO.POSIX.POSIX_FADV_DONTNEED;
import static org.apache.hadoop.io.nativeio.NativeIO.POSIX.SYNC_FILE_RANGE_WRITE;
import com.google.common.annotations.VisibleForTesting;
/** A class that receives a block and writes to its own disk, meanwhile
@ -791,12 +794,12 @@ class BlockReceiver implements Closeable {
this.datanode.getFSDataset().submitBackgroundSyncFileRangeRequest(
block, outFd, lastCacheManagementOffset,
offsetInBlock - lastCacheManagementOffset,
NativeIO.POSIX.SYNC_FILE_RANGE_WRITE);
SYNC_FILE_RANGE_WRITE);
} else {
NativeIO.POSIX.syncFileRangeIfPossible(outFd,
lastCacheManagementOffset, offsetInBlock
- lastCacheManagementOffset,
NativeIO.POSIX.SYNC_FILE_RANGE_WRITE);
lastCacheManagementOffset,
offsetInBlock - lastCacheManagementOffset,
SYNC_FILE_RANGE_WRITE);
}
}
//
@ -812,8 +815,7 @@ class BlockReceiver implements Closeable {
long dropPos = lastCacheManagementOffset - CACHE_DROP_LAG_BYTES;
if (dropPos > 0 && dropCacheBehindWrites) {
NativeIO.POSIX.getCacheManipulator().posixFadviseIfPossible(
block.getBlockName(), outFd, 0, dropPos,
NativeIO.POSIX.POSIX_FADV_DONTNEED);
block.getBlockName(), outFd, 0, dropPos, POSIX_FADV_DONTNEED);
}
lastCacheManagementOffset = offsetInBlock;
long duration = Time.monotonicNow() - begin;

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@ -51,6 +51,9 @@ import org.apache.htrace.Sampler;
import org.apache.htrace.Trace;
import org.apache.htrace.TraceScope;
import static org.apache.hadoop.io.nativeio.NativeIO.POSIX.POSIX_FADV_DONTNEED;
import static org.apache.hadoop.io.nativeio.NativeIO.POSIX.POSIX_FADV_SEQUENTIAL;
import com.google.common.annotations.VisibleForTesting;
import com.google.common.base.Preconditions;
@ -411,8 +414,7 @@ class BlockSender implements java.io.Closeable {
try {
NativeIO.POSIX.getCacheManipulator().posixFadviseIfPossible(
block.getBlockName(), blockInFd, lastCacheDropOffset,
offset - lastCacheDropOffset,
NativeIO.POSIX.POSIX_FADV_DONTNEED);
offset - lastCacheDropOffset, POSIX_FADV_DONTNEED);
} catch (Exception e) {
LOG.warn("Unable to drop cache on file close", e);
}
@ -729,8 +731,7 @@ class BlockSender implements java.io.Closeable {
if (isLongRead() && blockInFd != null) {
// Advise that this file descriptor will be accessed sequentially.
NativeIO.POSIX.getCacheManipulator().posixFadviseIfPossible(
block.getBlockName(), blockInFd, 0, 0,
NativeIO.POSIX.POSIX_FADV_SEQUENTIAL);
block.getBlockName(), blockInFd, 0, 0, POSIX_FADV_SEQUENTIAL);
}
// Trigger readahead of beginning of file if configured.
@ -818,7 +819,7 @@ class BlockSender implements java.io.Closeable {
long dropLength = offset - lastCacheDropOffset;
NativeIO.POSIX.getCacheManipulator().posixFadviseIfPossible(
block.getBlockName(), blockInFd, lastCacheDropOffset,
dropLength, NativeIO.POSIX.POSIX_FADV_DONTNEED);
dropLength, POSIX_FADV_DONTNEED);
lastCacheDropOffset = offset;
}
}

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@ -39,6 +39,9 @@ import org.apache.hadoop.io.IOUtils;
import org.apache.hadoop.io.nativeio.NativeIO;
import org.apache.hadoop.io.nativeio.NativeIO.POSIX.CacheManipulator;
import org.apache.hadoop.io.nativeio.NativeIOException;
import static org.apache.hadoop.io.nativeio.NativeIO.POSIX.POSIX_FADV_DONTNEED;
import org.junit.Assert;
import org.junit.BeforeClass;
import org.junit.Test;
@ -78,7 +81,7 @@ public class TestCachingStrategy {
synchronized void fadvise(int offset, int len, int flags) {
LOG.debug("got fadvise(offset=" + offset + ", len=" + len +
",flags=" + flags + ")");
if (flags == NativeIO.POSIX.POSIX_FADV_DONTNEED) {
if (flags == POSIX_FADV_DONTNEED) {
for (int i = 0; i < len; i++) {
dropped[(offset + i)] = true;
}

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@ -27,6 +27,9 @@ import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.io.ReadaheadPool;
import org.apache.hadoop.io.ReadaheadPool.ReadaheadRequest;
import org.apache.hadoop.io.nativeio.NativeIO;
import static org.apache.hadoop.io.nativeio.NativeIO.POSIX.POSIX_FADV_DONTNEED;
import org.jboss.netty.handler.stream.ChunkedFile;
public class FadvisedChunkedFile extends ChunkedFile {
@ -72,7 +75,7 @@ public class FadvisedChunkedFile extends ChunkedFile {
NativeIO.POSIX.getCacheManipulator().posixFadviseIfPossible(identifier,
fd,
getStartOffset(), getEndOffset() - getStartOffset(),
NativeIO.POSIX.POSIX_FADV_DONTNEED);
POSIX_FADV_DONTNEED);
} catch (Throwable t) {
LOG.warn("Failed to manage OS cache for " + identifier, t);
}

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@ -30,6 +30,9 @@ import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.io.ReadaheadPool;
import org.apache.hadoop.io.ReadaheadPool.ReadaheadRequest;
import org.apache.hadoop.io.nativeio.NativeIO;
import static org.apache.hadoop.io.nativeio.NativeIO.POSIX.POSIX_FADV_DONTNEED;
import org.jboss.netty.channel.DefaultFileRegion;
import com.google.common.annotations.VisibleForTesting;
@ -155,8 +158,7 @@ public class FadvisedFileRegion extends DefaultFileRegion {
if (manageOsCache && getCount() > 0) {
try {
NativeIO.POSIX.getCacheManipulator().posixFadviseIfPossible(identifier,
fd, getPosition(), getCount(),
NativeIO.POSIX.POSIX_FADV_DONTNEED);
fd, getPosition(), getCount(), POSIX_FADV_DONTNEED);
} catch (Throwable t) {
LOG.warn("Failed to manage OS cache for " + identifier, t);
}