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HDFS-4997. libhdfs does not return correct error code in most cases (cmccabe) 

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1547637 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Colin McCabe 2013-12-03 23:13:02 +00:00
parent f7fe50d55f
commit 61c45aae4d
4 changed files with 106 additions and 61 deletions
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2
hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
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@ -767,6 +767,8 @@ Release 2.3.0 - UNRELEASED
HDFS-5563. NFS gateway should commit the buffered data when read request comes
after write to the same file (brandonli)
HDFS-4997. libhdfs doesn't return correct error codes in most cases (cmccabe)
Release 2.2.0 - 2013-10-13
INCOMPATIBLE CHANGES

9
hadoop-hdfs-project/hadoop-hdfs/src/contrib/libwebhdfs/src/hdfs_json_parser.c
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@ -39,14 +39,6 @@ struct jsonException {
const char *message;
};
static void dotsToSlashes(char *str)
{
for (; *str != '\0'; str++) {
if (*str == '.')
*str = '/';
}
}
/** Print out the JSON exception information */
static int printJsonExceptionV(struct jsonException *exc, int noPrintFlags,
const char *fmt, va_list ap)
@ -62,7 +54,6 @@ static int printJsonExceptionV(struct jsonException *exc, int noPrintFlags,
fprintf(stderr, "printJsonExceptionV: internal out of memory error\n");
return EINTERNAL;
}
dotsToSlashes(javaClassName);
getExceptionInfo(javaClassName, noPrintFlags, &excErrno, &shouldPrint);
free(javaClassName);

33
hadoop-hdfs-project/hadoop-hdfs/src/main/native/libhdfs/exception.c
View File

@ -35,36 +35,55 @@ struct ExceptionInfo {
static const struct ExceptionInfo gExceptionInfo[] = {
{
.name = "java/io/FileNotFoundException",
.name = "java.io.FileNotFoundException",
.noPrintFlag = NOPRINT_EXC_FILE_NOT_FOUND,
.excErrno = ENOENT,
},
{
.name = "org/apache/hadoop/security/AccessControlException",
.name = "org.apache.hadoop.security.AccessControlException",
.noPrintFlag = NOPRINT_EXC_ACCESS_CONTROL,
.excErrno = EACCES,
},
{
.name = "org/apache/hadoop/fs/UnresolvedLinkException",
.name = "org.apache.hadoop.fs.UnresolvedLinkException",
.noPrintFlag = NOPRINT_EXC_UNRESOLVED_LINK,
.excErrno = ENOLINK,
},
{
.name = "org/apache/hadoop/fs/ParentNotDirectoryException",
.name = "org.apache.hadoop.fs.ParentNotDirectoryException",
.noPrintFlag = NOPRINT_EXC_PARENT_NOT_DIRECTORY,
.excErrno = ENOTDIR,
},
{
.name = "java/lang/IllegalArgumentException",
.name = "java.lang.IllegalArgumentException",
.noPrintFlag = NOPRINT_EXC_ILLEGAL_ARGUMENT,
.excErrno = EINVAL,
},
{
.name = "java/lang/OutOfMemoryError",
.name = "java.lang.OutOfMemoryError",
.noPrintFlag = 0,
.excErrno = ENOMEM,
},
{
.name = "org.apache.hadoop.hdfs.server.namenode.SafeModeException",
.noPrintFlag = 0,
.excErrno = EROFS,
},
{
.name = "org.apache.hadoop.fs.FileAlreadyExistsException",
.noPrintFlag = 0,
.excErrno = EEXIST,
},
{
.name = "org.apache.hadoop.hdfs.protocol.QuotaExceededException",
.noPrintFlag = 0,
.excErrno = EDQUOT,
},
{
.name = "org.apache.hadoop.hdfs.server.namenode.LeaseExpiredException",
.noPrintFlag = 0,
.excErrno = ESTALE,
},
};
void getExceptionInfo(const char *excName, int noPrintFlags,

121
hadoop-hdfs-project/hadoop-hdfs/src/main/native/libhdfs/test_libhdfs_threaded.c
View File

@ -48,7 +48,8 @@ struct tlhThreadInfo {
pthread_t thread;
};
static int hdfsSingleNameNodeConnect(struct NativeMiniDfsCluster *cl, hdfsFS *fs)
static int hdfsSingleNameNodeConnect(struct NativeMiniDfsCluster *cl, hdfsFS *fs,
const char *username)
{
int ret, port;
hdfsFS hdfs;
@ -70,6 +71,9 @@ static int hdfsSingleNameNodeConnect(struct NativeMiniDfsCluster *cl, hdfsFS *fs
TO_STR(TLH_DEFAULT_BLOCK_SIZE));
hdfsBuilderConfSetStr(bld, "dfs.blocksize",
TO_STR(TLH_DEFAULT_BLOCK_SIZE));
if (username) {
hdfsBuilderSetUserName(bld, username);
}
hdfs = hdfsBuilderConnect(bld);
if (!hdfs) {
ret = -errno;
@ -110,36 +114,58 @@ static int doTestGetDefaultBlockSize(hdfsFS fs, const char *path)
return 0;
}
static int doTestHdfsOperations(struct tlhThreadInfo *ti, hdfsFS fs)
struct tlhPaths {
char prefix[256];
char file1[256];
char file2[256];
};
static int setupPaths(const struct tlhThreadInfo *ti, struct tlhPaths *paths)
{
char prefix[256], tmp[256];
memset(paths, sizeof(*paths), 0);
if (snprintf(paths->prefix, sizeof(paths->prefix), "/tlhData%04d",
ti->threadIdx) >= sizeof(paths->prefix)) {
return ENAMETOOLONG;
}
if (snprintf(paths->file1, sizeof(paths->file1), "%s/file1",
paths->prefix) >= sizeof(paths->file1)) {
return ENAMETOOLONG;
}
if (snprintf(paths->file2, sizeof(paths->file2), "%s/file2",
paths->prefix) >= sizeof(paths->file2)) {
return ENAMETOOLONG;
}
return 0;
}
static int doTestHdfsOperations(struct tlhThreadInfo *ti, hdfsFS fs,
const struct tlhPaths *paths)
{
char tmp[4096];
hdfsFile file;
int ret, expected;
hdfsFileInfo *fileInfo;
struct hdfsReadStatistics *readStats = NULL;
snprintf(prefix, sizeof(prefix), "/tlhData%04d", ti->threadIdx);
if (hdfsExists(fs, prefix) == 0) {
EXPECT_ZERO(hdfsDelete(fs, prefix, 1));
if (hdfsExists(fs, paths->prefix) == 0) {
EXPECT_ZERO(hdfsDelete(fs, paths->prefix, 1));
}
EXPECT_ZERO(hdfsCreateDirectory(fs, prefix));
snprintf(tmp, sizeof(tmp), "%s/file", prefix);
EXPECT_ZERO(hdfsCreateDirectory(fs, paths->prefix));
EXPECT_ZERO(doTestGetDefaultBlockSize(fs, prefix));
EXPECT_ZERO(doTestGetDefaultBlockSize(fs, paths->prefix));
/* There should not be any file to open for reading. */
EXPECT_NULL(hdfsOpenFile(fs, tmp, O_RDONLY, 0, 0, 0));
EXPECT_NULL(hdfsOpenFile(fs, paths->file1, O_RDONLY, 0, 0, 0));
/* hdfsOpenFile should not accept mode = 3 */
EXPECT_NULL(hdfsOpenFile(fs, tmp, 3, 0, 0, 0));
EXPECT_NULL(hdfsOpenFile(fs, paths->file1, 3, 0, 0, 0));
file = hdfsOpenFile(fs, tmp, O_WRONLY, 0, 0, 0);
file = hdfsOpenFile(fs, paths->file1, O_WRONLY, 0, 0, 0);
EXPECT_NONNULL(file);
/* TODO: implement writeFully and use it here */
expected = strlen(prefix);
ret = hdfsWrite(fs, file, prefix, expected);
expected = strlen(paths->prefix);
ret = hdfsWrite(fs, file, paths->prefix, expected);
if (ret < 0) {
ret = errno;
fprintf(stderr, "hdfsWrite failed and set errno %d\n", ret);
@ -155,7 +181,7 @@ static int doTestHdfsOperations(struct tlhThreadInfo *ti, hdfsFS fs)
EXPECT_ZERO(hdfsCloseFile(fs, file));
/* Let's re-open the file for reading */
file = hdfsOpenFile(fs, tmp, O_RDONLY, 0, 0, 0);
file = hdfsOpenFile(fs, paths->file1, O_RDONLY, 0, 0, 0);
EXPECT_NONNULL(file);
EXPECT_ZERO(hdfsFileGetReadStatistics(file, &readStats));
@ -180,60 +206,67 @@ static int doTestHdfsOperations(struct tlhThreadInfo *ti, hdfsFS fs)
errno = 0;
EXPECT_INT_EQ(expected, readStats->totalBytesRead);
hdfsFileFreeReadStatistics(readStats);
EXPECT_ZERO(memcmp(prefix, tmp, expected));
EXPECT_ZERO(memcmp(paths->prefix, tmp, expected));
EXPECT_ZERO(hdfsCloseFile(fs, file));
// TODO: Non-recursive delete should fail?
//EXPECT_NONZERO(hdfsDelete(fs, prefix, 0));
EXPECT_ZERO(hdfsCopy(fs, paths->file1, fs, paths->file2));
snprintf(tmp, sizeof(tmp), "%s/file", prefix);
EXPECT_ZERO(hdfsChown(fs, tmp, NULL, NULL));
EXPECT_ZERO(hdfsChown(fs, tmp, NULL, "doop"));
fileInfo = hdfsGetPathInfo(fs, tmp);
EXPECT_ZERO(hdfsChown(fs, paths->file2, NULL, NULL));
EXPECT_ZERO(hdfsChown(fs, paths->file2, NULL, "doop"));
fileInfo = hdfsGetPathInfo(fs, paths->file2);
EXPECT_NONNULL(fileInfo);
EXPECT_ZERO(strcmp("doop", fileInfo->mGroup));
hdfsFreeFileInfo(fileInfo, 1);
EXPECT_ZERO(hdfsChown(fs, tmp, "ha", "doop2"));
fileInfo = hdfsGetPathInfo(fs, tmp);
EXPECT_ZERO(hdfsChown(fs, paths->file2, "ha", "doop2"));
fileInfo = hdfsGetPathInfo(fs, paths->file2);
EXPECT_NONNULL(fileInfo);
EXPECT_ZERO(strcmp("ha", fileInfo->mOwner));
EXPECT_ZERO(strcmp("doop2", fileInfo->mGroup));
hdfsFreeFileInfo(fileInfo, 1);
EXPECT_ZERO(hdfsChown(fs, tmp, "ha2", NULL));
fileInfo = hdfsGetPathInfo(fs, tmp);
EXPECT_ZERO(hdfsChown(fs, paths->file2, "ha2", NULL));
fileInfo = hdfsGetPathInfo(fs, paths->file2);
EXPECT_NONNULL(fileInfo);
EXPECT_ZERO(strcmp("ha2", fileInfo->mOwner));
EXPECT_ZERO(strcmp("doop2", fileInfo->mGroup));
hdfsFreeFileInfo(fileInfo, 1);
EXPECT_ZERO(hdfsDelete(fs, prefix, 1));
snprintf(tmp, sizeof(tmp), "%s/nonexistent-file-name", paths->prefix);
EXPECT_NEGATIVE_ONE_WITH_ERRNO(hdfsChown(fs, tmp, "ha3", NULL), ENOENT);
return 0;
}
static int testHdfsOperationsImpl(struct tlhThreadInfo *ti)
{
hdfsFS fs = NULL;
struct tlhPaths paths;
fprintf(stderr, "testHdfsOperations(threadIdx=%d): starting\n",
ti->threadIdx);
EXPECT_ZERO(hdfsSingleNameNodeConnect(tlhCluster, &fs, NULL));
EXPECT_ZERO(setupPaths(ti, &paths));
// test some operations
EXPECT_ZERO(doTestHdfsOperations(ti, fs, &paths));
EXPECT_ZERO(hdfsDisconnect(fs));
// reconnect as user "foo" and verify that we get permission errors
EXPECT_ZERO(hdfsSingleNameNodeConnect(tlhCluster, &fs, "foo"));
EXPECT_NEGATIVE_ONE_WITH_ERRNO(hdfsChown(fs, paths.file1, "ha3", NULL), EACCES);
EXPECT_ZERO(hdfsDisconnect(fs));
// reconnect to do the final delete.
EXPECT_ZERO(hdfsSingleNameNodeConnect(tlhCluster, &fs, NULL));
EXPECT_ZERO(hdfsDelete(fs, paths.prefix, 1));
EXPECT_ZERO(hdfsDisconnect(fs));
return 0;
}
static void *testHdfsOperations(void *v)
{
struct tlhThreadInfo *ti = (struct tlhThreadInfo*)v;
hdfsFS fs = NULL;
int ret;
fprintf(stderr, "testHdfsOperations(threadIdx=%d): starting\n",
ti->threadIdx);
ret = hdfsSingleNameNodeConnect(tlhCluster, &fs);
if (ret) {
fprintf(stderr, "testHdfsOperations(threadIdx=%d): "
"hdfsSingleNameNodeConnect failed with error %d.\n",
ti->threadIdx, ret);
ti->success = EIO;
return NULL;
}
ti->success = doTestHdfsOperations(ti, fs);
if (hdfsDisconnect(fs)) {
ret = errno;
fprintf(stderr, "hdfsDisconnect error %d\n", ret);
int ret = testHdfsOperationsImpl(ti);
ti->success = ret;
}
return NULL;
}