hdfs_test.c
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上传日期:2018-01-08
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- /**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements. See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership. The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
- #include "hdfs.h"
- void permission_disp(short permissions, char *rtr) {
- rtr[9] = ' ';
- int i;
- for(i=2;i>=0;i--)
- {
- short permissionsId = permissions >> (i * 3) & (short)7;
- char* perm;
- switch(permissionsId) {
- case 7:
- perm = "rwx"; break;
- case 6:
- perm = "rw-"; break;
- case 5:
- perm = "r-x"; break;
- case 4:
- perm = "r--"; break;
- case 3:
- perm = "-wx"; break;
- case 2:
- perm = "-w-"; break;
- case 1:
- perm = "--x"; break;
- case 0:
- perm = "---"; break;
- default:
- perm = "???";
- }
- strncpy(rtr, perm, 3);
- rtr+=3;
- }
- }
- int main(int argc, char **argv) {
- hdfsFS fs = hdfsConnect("default", 0);
- if(!fs) {
- fprintf(stderr, "Oops! Failed to connect to hdfs!n");
- exit(-1);
- }
-
- hdfsFS lfs = hdfsConnect(NULL, 0);
- if(!lfs) {
- fprintf(stderr, "Oops! Failed to connect to 'local' hdfs!n");
- exit(-1);
- }
- const char* writePath = "/tmp/testfile.txt";
- {
- //Write tests
-
-
- hdfsFile writeFile = hdfsOpenFile(fs, writePath, O_WRONLY|O_CREAT, 0, 0, 0);
- if(!writeFile) {
- fprintf(stderr, "Failed to open %s for writing!n", writePath);
- exit(-1);
- }
- fprintf(stderr, "Opened %s for writing successfully...n", writePath);
- char* buffer = "Hello, World!";
- tSize num_written_bytes = hdfsWrite(fs, writeFile, (void*)buffer, strlen(buffer)+1);
- fprintf(stderr, "Wrote %d bytesn", num_written_bytes);
- tOffset currentPos = -1;
- if ((currentPos = hdfsTell(fs, writeFile)) == -1) {
- fprintf(stderr,
- "Failed to get current file position correctly! Got %ld!n",
- currentPos);
- exit(-1);
- }
- fprintf(stderr, "Current position: %ldn", currentPos);
- if (hdfsFlush(fs, writeFile)) {
- fprintf(stderr, "Failed to 'flush' %sn", writePath);
- exit(-1);
- }
- fprintf(stderr, "Flushed %s successfully!n", writePath);
- hdfsCloseFile(fs, writeFile);
- }
- {
- //Read tests
-
- const char* readPath = "/tmp/testfile.txt";
- int exists = hdfsExists(fs, readPath);
- if (exists) {
- fprintf(stderr, "Failed to validate existence of %sn", readPath);
- exit(-1);
- }
- hdfsFile readFile = hdfsOpenFile(fs, readPath, O_RDONLY, 0, 0, 0);
- if (!readFile) {
- fprintf(stderr, "Failed to open %s for reading!n", readPath);
- exit(-1);
- }
- fprintf(stderr, "hdfsAvailable: %dn", hdfsAvailable(fs, readFile));
- tOffset seekPos = 1;
- if(hdfsSeek(fs, readFile, seekPos)) {
- fprintf(stderr, "Failed to seek %s for reading!n", readPath);
- exit(-1);
- }
- tOffset currentPos = -1;
- if((currentPos = hdfsTell(fs, readFile)) != seekPos) {
- fprintf(stderr,
- "Failed to get current file position correctly! Got %ld!n",
- currentPos);
- exit(-1);
- }
- fprintf(stderr, "Current position: %ldn", currentPos);
- static char buffer[32];
- tSize num_read_bytes = hdfsRead(fs, readFile, (void*)buffer,
- sizeof(buffer));
- fprintf(stderr, "Read following %d bytes:n%sn",
- num_read_bytes, buffer);
- num_read_bytes = hdfsPread(fs, readFile, 0, (void*)buffer,
- sizeof(buffer));
- fprintf(stderr, "Read following %d bytes:n%sn",
- num_read_bytes, buffer);
- hdfsCloseFile(fs, readFile);
- }
- int totalResult = 0;
- int result = 0;
- {
- //Generic file-system operations
- const char* srcPath = "/tmp/testfile.txt";
- const char* dstPath = "/tmp/testfile2.txt";
- fprintf(stderr, "hdfsCopy(remote-local): %sn", ((result = hdfsCopy(fs, srcPath, lfs, srcPath)) ? "Failed!" : "Success!"));
- totalResult += result;
- fprintf(stderr, "hdfsCopy(remote-remote): %sn", ((result = hdfsCopy(fs, srcPath, fs, dstPath)) ? "Failed!" : "Success!"));
- totalResult += result;
- fprintf(stderr, "hdfsMove(local-local): %sn", ((result = hdfsMove(lfs, srcPath, lfs, dstPath)) ? "Failed!" : "Success!"));
- totalResult += result;
- fprintf(stderr, "hdfsMove(remote-local): %sn", ((result = hdfsMove(fs, srcPath, lfs, srcPath)) ? "Failed!" : "Success!"));
- totalResult += result;
- fprintf(stderr, "hdfsRename: %sn", ((result = hdfsRename(fs, dstPath, srcPath)) ? "Failed!" : "Success!"));
- totalResult += result;
- fprintf(stderr, "hdfsCopy(remote-remote): %sn", ((result = hdfsCopy(fs, srcPath, fs, dstPath)) ? "Failed!" : "Success!"));
- totalResult += result;
- const char* slashTmp = "/tmp";
- const char* newDirectory = "/tmp/newdir";
- fprintf(stderr, "hdfsCreateDirectory: %sn", ((result = hdfsCreateDirectory(fs, newDirectory)) ? "Failed!" : "Success!"));
- totalResult += result;
- fprintf(stderr, "hdfsSetReplication: %sn", ((result = hdfsSetReplication(fs, srcPath, 2)) ? "Failed!" : "Success!"));
- totalResult += result;
- char buffer[256];
- const char *resp;
- fprintf(stderr, "hdfsGetWorkingDirectory: %sn", ((resp = hdfsGetWorkingDirectory(fs, buffer, sizeof(buffer))) ? buffer : "Failed!"));
- totalResult += (resp ? 0 : 1);
- fprintf(stderr, "hdfsSetWorkingDirectory: %sn", ((result = hdfsSetWorkingDirectory(fs, slashTmp)) ? "Failed!" : "Success!"));
- totalResult += result;
- fprintf(stderr, "hdfsGetWorkingDirectory: %sn", ((resp = hdfsGetWorkingDirectory(fs, buffer, sizeof(buffer))) ? buffer : "Failed!"));
- totalResult += (resp ? 0 : 1);
- fprintf(stderr, "hdfsGetDefaultBlockSize: %ldn", hdfsGetDefaultBlockSize(fs));
- fprintf(stderr, "hdfsGetCapacity: %ldn", hdfsGetCapacity(fs));
- fprintf(stderr, "hdfsGetUsed: %ldn", hdfsGetUsed(fs));
- hdfsFileInfo *fileInfo = NULL;
- if((fileInfo = hdfsGetPathInfo(fs, slashTmp)) != NULL) {
- fprintf(stderr, "hdfsGetPathInfo - SUCCESS!n");
- fprintf(stderr, "Name: %s, ", fileInfo->mName);
- fprintf(stderr, "Type: %c, ", (char)(fileInfo->mKind));
- fprintf(stderr, "Replication: %d, ", fileInfo->mReplication);
- fprintf(stderr, "BlockSize: %ld, ", fileInfo->mBlockSize);
- fprintf(stderr, "Size: %ld, ", fileInfo->mSize);
- fprintf(stderr, "LastMod: %s", ctime(&fileInfo->mLastMod));
- fprintf(stderr, "Owner: %s, ", fileInfo->mOwner);
- fprintf(stderr, "Group: %s, ", fileInfo->mGroup);
- char permissions[10];
- permission_disp(fileInfo->mPermissions, permissions);
- fprintf(stderr, "Permissions: %d (%s)n", fileInfo->mPermissions, permissions);
- hdfsFreeFileInfo(fileInfo, 1);
- } else {
- totalResult++;
- fprintf(stderr, "waah! hdfsGetPathInfo for %s - FAILED!n", slashTmp);
- }
- hdfsFileInfo *fileList = 0;
- int numEntries = 0;
- if((fileList = hdfsListDirectory(fs, slashTmp, &numEntries)) != NULL) {
- int i = 0;
- for(i=0; i < numEntries; ++i) {
- fprintf(stderr, "Name: %s, ", fileList[i].mName);
- fprintf(stderr, "Type: %c, ", (char)fileList[i].mKind);
- fprintf(stderr, "Replication: %d, ", fileList[i].mReplication);
- fprintf(stderr, "BlockSize: %ld, ", fileList[i].mBlockSize);
- fprintf(stderr, "Size: %ld, ", fileList[i].mSize);
- fprintf(stderr, "LastMod: %s", ctime(&fileList[i].mLastMod));
- fprintf(stderr, "Owner: %s, ", fileList[i].mOwner);
- fprintf(stderr, "Group: %s, ", fileList[i].mGroup);
- char permissions[10];
- permission_disp(fileList[i].mPermissions, permissions);
- fprintf(stderr, "Permissions: %d (%s)n", fileList[i].mPermissions, permissions);
- }
- hdfsFreeFileInfo(fileList, numEntries);
- } else {
- if (errno) {
- totalResult++;
- fprintf(stderr, "waah! hdfsListDirectory - FAILED!n");
- } else {
- fprintf(stderr, "Empty directory!n");
- }
- }
- char*** hosts = hdfsGetHosts(fs, srcPath, 0, 1);
- if(hosts) {
- fprintf(stderr, "hdfsGetHosts - SUCCESS! ... n");
- int i=0;
- while(hosts[i]) {
- int j = 0;
- while(hosts[i][j]) {
- fprintf(stderr,
- "thosts[%d][%d] - %sn", i, j, hosts[i][j]);
- ++j;
- }
- ++i;
- }
- } else {
- totalResult++;
- fprintf(stderr, "waah! hdfsGetHosts - FAILED!n");
- }
-
- char *newOwner = "root";
- // setting tmp dir to 777 so later when connectAsUser nobody, we can write to it
- short newPerm = 0666;
- // chown write
- fprintf(stderr, "hdfsChown: %sn", ((result = hdfsChown(fs, writePath, NULL, "users")) ? "Failed!" : "Success!"));
- totalResult += result;
- fprintf(stderr, "hdfsChown: %sn", ((result = hdfsChown(fs, writePath, newOwner, NULL)) ? "Failed!" : "Success!"));
- totalResult += result;
- // chmod write
- fprintf(stderr, "hdfsChmod: %sn", ((result = hdfsChmod(fs, writePath, newPerm)) ? "Failed!" : "Success!"));
- totalResult += result;
- sleep(2);
- tTime newMtime = time(NULL);
- tTime newAtime = time(NULL);
- // utime write
- fprintf(stderr, "hdfsUtime: %sn", ((result = hdfsUtime(fs, writePath, newMtime, newAtime)) ? "Failed!" : "Success!"));
- totalResult += result;
- // chown/chmod/utime read
- hdfsFileInfo *finfo = hdfsGetPathInfo(fs, writePath);
- fprintf(stderr, "hdfsChown read: %sn", ((result = (strcmp(finfo->mOwner, newOwner) != 0)) ? "Failed!" : "Success!"));
- totalResult += result;
- fprintf(stderr, "hdfsChmod read: %sn", ((result = (finfo->mPermissions != newPerm)) ? "Failed!" : "Success!"));
- totalResult += result;
- // will later use /tmp/ as a different user so enable it
- fprintf(stderr, "hdfsChmod: %sn", ((result = hdfsChmod(fs, "/tmp/", 0777)) ? "Failed!" : "Success!"));
- totalResult += result;
- fprintf(stderr,"newMTime=%ldn",newMtime);
- fprintf(stderr,"curMTime=%ldn",finfo->mLastMod);
- fprintf(stderr, "hdfsUtime read (mtime): %sn", ((result = (finfo->mLastMod != newMtime)) ? "Failed!" : "Success!"));
- totalResult += result;
- // No easy way to turn on access times from hdfs_test right now
- // fprintf(stderr, "hdfsUtime read (atime): %sn", ((result = (finfo->mLastAccess != newAtime)) ? "Failed!" : "Success!"));
- // totalResult += result;
- hdfsFreeFileInfo(finfo, 1);
- // Clean up
- fprintf(stderr, "hdfsDelete: %sn", ((result = hdfsDelete(fs, newDirectory)) ? "Failed!" : "Success!"));
- totalResult += result;
- fprintf(stderr, "hdfsDelete: %sn", ((result = hdfsDelete(fs, srcPath)) ? "Failed!" : "Success!"));
- totalResult += result;
- fprintf(stderr, "hdfsDelete: %sn", ((result = hdfsDelete(lfs, srcPath)) ? "Failed!" : "Success!"));
- totalResult += result;
- fprintf(stderr, "hdfsDelete: %sn", ((result = hdfsDelete(lfs, dstPath)) ? "Failed!" : "Success!"));
- totalResult += result;
- fprintf(stderr, "hdfsExists: %sn", ((result = hdfsExists(fs, newDirectory)) ? "Success!" : "Failed!"));
- totalResult += (result ? 0 : 1);
- }
- {
- // TEST APPENDS
- const char *writePath = "/tmp/appends";
- // CREATE
- hdfsFile writeFile = hdfsOpenFile(fs, writePath, O_WRONLY, 0, 0, 0);
- if(!writeFile) {
- fprintf(stderr, "Failed to open %s for writing!n", writePath);
- exit(-1);
- }
- fprintf(stderr, "Opened %s for writing successfully...n", writePath);
- char* buffer = "Hello,";
- tSize num_written_bytes = hdfsWrite(fs, writeFile, (void*)buffer, strlen(buffer));
- fprintf(stderr, "Wrote %d bytesn", num_written_bytes);
- if (hdfsFlush(fs, writeFile)) {
- fprintf(stderr, "Failed to 'flush' %sn", writePath);
- exit(-1);
- }
- fprintf(stderr, "Flushed %s successfully!n", writePath);
- hdfsCloseFile(fs, writeFile);
- // RE-OPEN
- writeFile = hdfsOpenFile(fs, writePath, O_WRONLY|O_APPEND, 0, 0, 0);
- if(!writeFile) {
- fprintf(stderr, "Failed to open %s for writing!n", writePath);
- exit(-1);
- }
- fprintf(stderr, "Opened %s for writing successfully...n", writePath);
- buffer = " World";
- num_written_bytes = hdfsWrite(fs, writeFile, (void*)buffer, strlen(buffer) + 1);
- fprintf(stderr, "Wrote %d bytesn", num_written_bytes);
- if (hdfsFlush(fs, writeFile)) {
- fprintf(stderr, "Failed to 'flush' %sn", writePath);
- exit(-1);
- }
- fprintf(stderr, "Flushed %s successfully!n", writePath);
- hdfsCloseFile(fs, writeFile);
- // CHECK size
- hdfsFileInfo *finfo = hdfsGetPathInfo(fs, writePath);
- fprintf(stderr, "fileinfo->mSize: == total %sn", ((result = (finfo->mSize == strlen("Hello, World") + 1)) ? "Success!" : "Failed!"));
- totalResult += (result ? 0 : 1);
- // READ and check data
- hdfsFile readFile = hdfsOpenFile(fs, writePath, O_RDONLY, 0, 0, 0);
- if (!readFile) {
- fprintf(stderr, "Failed to open %s for reading!n", writePath);
- exit(-1);
- }
- char rdbuffer[32];
- tSize num_read_bytes = hdfsRead(fs, readFile, (void*)rdbuffer, sizeof(rdbuffer));
- fprintf(stderr, "Read following %d bytes:n%sn",
- num_read_bytes, rdbuffer);
- fprintf(stderr, "read == Hello, World %sn", (result = (strcmp(rdbuffer, "Hello, World") == 0)) ? "Success!" : "Failed!");
- hdfsCloseFile(fs, readFile);
- // DONE test appends
- }
-
-
- totalResult += (hdfsDisconnect(fs) != 0);
- {
- //
- // Now test as connecting as a specific user
- // This is only meant to test that we connected as that user, not to test
- // the actual fs user capabilities. Thus just create a file and read
- // the owner is correct.
- const char *tuser = "nobody";
- const char* writePath = "/tmp/usertestfile.txt";
- const char **groups = (const char**)malloc(sizeof(char*)* 2);
- groups[0] = "users";
- groups[1] = "nobody";
- fs = hdfsConnectAsUser("default", 0, tuser, groups, 2);
- if(!fs) {
- fprintf(stderr, "Oops! Failed to connect to hdfs as user %s!n",tuser);
- exit(-1);
- }
- hdfsFile writeFile = hdfsOpenFile(fs, writePath, O_WRONLY|O_CREAT, 0, 0, 0);
- if(!writeFile) {
- fprintf(stderr, "Failed to open %s for writing!n", writePath);
- exit(-1);
- }
- fprintf(stderr, "Opened %s for writing successfully...n", writePath);
- char* buffer = "Hello, World!";
- tSize num_written_bytes = hdfsWrite(fs, writeFile, (void*)buffer, strlen(buffer)+1);
- fprintf(stderr, "Wrote %d bytesn", num_written_bytes);
- if (hdfsFlush(fs, writeFile)) {
- fprintf(stderr, "Failed to 'flush' %sn", writePath);
- exit(-1);
- }
- fprintf(stderr, "Flushed %s successfully!n", writePath);
- hdfsCloseFile(fs, writeFile);
- hdfsFileInfo *finfo = hdfsGetPathInfo(fs, writePath);
- fprintf(stderr, "hdfs new file user is correct: %sn", ((result = (strcmp(finfo->mOwner, tuser) != 0)) ? "Failed!" : "Success!"));
- totalResult += result;
- }
-
- totalResult += (hdfsDisconnect(fs) != 0);
- if (totalResult != 0) {
- return -1;
- } else {
- return 0;
- }
- }
- /**
- * vim: ts=4: sw=4: et:
- */