END_TEST
START_TEST(test_append)
{
bool s;
struct hdfs_object *e = NULL, *lb;
const char *tf = "/HADOOFUS_TEST_APPEND",
*client = "HADOOFUS_CLIENT";
// Create the file first
hdfs_create(h, tf, 0644, client, true/*overwrite*/,
false/*createparent*/, 1/*replication*/, 64*1024*1024, &e);
if (e)
ck_abort_msg("exception: %s", hdfs_exception_get_message(e));
s = hdfs_complete(h, tf, client, &e);
if (e)
ck_abort_msg("exception: %s", hdfs_exception_get_message(e));
ck_assert_msg(s, "complete returned false");
// Open for appending
lb = hdfs_append(h, tf, client, &e);
if (e)
ck_abort_msg("exception: %s", hdfs_exception_get_message(e));
hdfs_object_free(lb);
// Cleanup
s = hdfs_delete(h, tf, false/*recurse*/, &e);
if (e)
ck_abort_msg("exception: %s", hdfs_exception_get_message(e));
ck_assert_msg(s, "delete returned false");
}
END_TEST
START_TEST(test_complete)
{
bool s;
struct hdfs_object *e = NULL;
const char *tf = "/HADOOFUS_TEST_COMPLETE",
*client = "HADOOFUS_CLIENT";
// Create the file first
hdfs_create(h, tf, 0644, client, true/*overwrite*/,
false/*createparent*/, 1/*replication*/, 64*1024*1024, &e);
if (e)
ck_abort_msg("exception: %s", hdfs_exception_get_message(e));
// XXX this must be updated to cover v2.0+ (last_block/fileid)
s = hdfs_complete(h, tf, client, NULL, 0, &e);
if (e)
ck_abort_msg("exception: %s", hdfs_exception_get_message(e));
ck_assert_msg(s, "complete returned false");
// Cleanup
s = hdfs_delete(h, tf, false/*recurse*/, &e);
if (e)
ck_abort_msg("exception: %s", hdfs_exception_get_message(e));
ck_assert_msg(s, "delete returned false");
}
/**
* hdfsCloseFile - Close an open file.
*
* @param fs The configured filesystem handle.
* @param file The file handle.
* @return Returns 0 on success, -1 on error.
*/
int
hdfsCloseFile(hdfsFS fs, hdfsFile file)
{
struct hdfsFile_internal *f = file;
struct hdfsFS_internal *client = fs;
int res = 0;
if (f->fi_mode == FILE_WRITE || f->fi_mode == FILE_APPEND) {
struct hdfs_object *ex = NULL;
bool succ = false;
if (f->fi_wbuf_used > 0) {
res = _flush(client->fs_namenode, f, NULL, -1);
if (res == -1)
WARN("Flushing '%s' failed: %m", f->fi_path);
}
while (!succ) {
succ = hdfs_complete(client->fs_namenode, f->fi_path, f->fi_client, &ex);
if (ex) {
ERR(EIO, "Could not complete '%s', abandoning "
"write: %s", f->fi_path,
hdfs_exception_get_message(ex));
hdfs_object_free(ex);
res = -1;
break;
}
if (!succ) {
WARN("Could not complete '%s'", f->fi_path);
usleep(400*1000);
}
}
free(f->fi_wbuf);
}
free(f->fi_client);
free(f->fi_path);
free(f);
return res;
}
END_TEST
START_TEST(test_dn_write_file)
{
const char *tf = "/HADOOFUS_TEST_WRITE_FILE",
*client = "HADOOFUS_CLIENT", *err;
bool s;
struct hdfs_datanode *dn;
struct hdfs_object *e = NULL, *bl, *fs, *bls;
uint64_t begin, end;
s = hdfs_delete(h, tf, false/*recurse*/, &e);
if (e)
fail("exception: %s", hdfs_exception_get_message(e));
hdfs_create(h, tf, 0644, client, true/*overwrite*/,
false/*createparent*/, 1/*replication*/, blocksz, &e);
if (e)
fail("exception: %s", hdfs_exception_get_message(e));
begin = _now();
// write first block (full)
bl = hdfs_addBlock(h, tf, client, NULL, &e);
if (e)
fail("exception: %s", hdfs_exception_get_message(e));
dn = hdfs_datanode_new(bl, client, HDFS_DATANODE_AP_1_0, &err);
ck_assert_msg((intptr_t)dn, "error connecting to datanode: %s", err);
hdfs_object_free(bl);
err = hdfs_datanode_write_file(dn, fd, blocksz, 0, _i/*crcs*/);
fail_if(err, "error writing block: %s", err);
hdfs_datanode_delete(dn);
// write second block (partial)
bl = hdfs_addBlock(h, tf, client, NULL, &e);
if (e)
fail("exception: %s", hdfs_exception_get_message(e));
dn = hdfs_datanode_new(bl, client, HDFS_DATANODE_AP_1_0, &err);
ck_assert_msg((intptr_t)dn, "error connecting to datanode: %s", err);
hdfs_object_free(bl);
err = hdfs_datanode_write_file(dn, fd, towrite-blocksz, blocksz, _i/*crcs*/);
fail_if(err, "error writing block: %s", err);
hdfs_datanode_delete(dn);
end = _now();
fprintf(stderr, "Wrote %d MB from file in %ld ms%s, %02g MB/s\n",
towrite/1024/1024, end - begin, _i? " (with crcs)":"",
(double)towrite/(end-begin)/1024*1000/1024);
fs = hdfs_getFileInfo(h, tf, &e);
if (e)
fail("exception: %s", hdfs_exception_get_message(e));
ck_assert(fs->ob_val._file_status._size == towrite);
hdfs_object_free(fs);
s = hdfs_complete(h, tf, client, &e);
if (e)
fail("exception: %s", hdfs_exception_get_message(e));
ck_assert_msg(s, "did not complete");
bls = hdfs_getBlockLocations(h, tf, 0, towrite, &e);
if (e)
fail("exception: %s", hdfs_exception_get_message(e));
begin = _now();
for (int i = 0; i < bls->ob_val._located_blocks._num_blocks; i++) {
struct hdfs_object *bl =
bls->ob_val._located_blocks._blocks[i];
dn = hdfs_datanode_new(bl, client, HDFS_DATANODE_AP_1_0, &err);
ck_assert_msg((intptr_t)dn, "error connecting to datanode: %s", err);
err = hdfs_datanode_read_file(dn, 0/*offset-in-block*/,
bl->ob_val._located_block._len,
ofd,
i*blocksz/*fd offset*/,
_i/*crcs*/);
hdfs_datanode_delete(dn);
if (err == HDFS_DATANODE_ERR_NO_CRCS) {
fprintf(stderr, "Warning: test server doesn't support "
"CRCs, skipping validation.\n");
_i = 0;
// reconnect, try again without validating CRCs (for
// isi_hdfs_d)
dn = hdfs_datanode_new(bl, client, HDFS_DATANODE_AP_1_0, &err);
ck_assert_msg((intptr_t)dn, "error connecting to datanode: %s", err);
err = hdfs_datanode_read_file(dn, 0/*offset-in-block*/,
bl->ob_val._located_block._len,
ofd,
i*blocksz,
false/*crcs*/);
hdfs_datanode_delete(dn);
}
fail_if(err, "error reading block: %s", err);
}
end = _now();
fprintf(stderr, "Read %d MB to file in %ld ms%s, %02g MB/s\n",
towrite/1024/1024, end - begin, _i? " (with crcs)":"",
(double)towrite/(end-begin)/1024*1000/1024);
hdfs_object_free(bls);
fail_if(filecmp(fd, ofd, towrite), "read differed from write");
s = hdfs_delete(h, tf, false/*recurse*/, &e);
if (e)
fail("exception: %s", hdfs_exception_get_message(e));
ck_assert_msg(s, "delete returned false");
}
