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Posted to common-issues@hadoop.apache.org by "LiuGuH (via GitHub)" <gi...@apache.org> on 2024/04/30 02:27:31 UTC
[PR] HDFS-17509. RBF: Fix ClientProtocol.concat will throw NPE if tgr is a empty file. [hadoop]
LiuGuH opened a new pull request, #6784:
URL: https://github.com/apache/hadoop/pull/6784
### Description of PR
As described [HDFS-17509](https://issues.apache.org/jira/browse/HDFS-17509)
hdfs dfs -concat /tmp/merge /tmp/t1 /tmp/t2
When /tmp/merge is a empty file, this command will throw NPE via DFSRouter.
Because a file via DFSRouter only can be exists in one namespace, so this RP can implement in this way.
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Re: [PR] HDFS-17509. RBF: Fix ClientProtocol.concat will throw NPE if tgr is a empty file. [hadoop]
Posted by "LiuGuH (via GitHub)" <gi...@apache.org>.
LiuGuH commented on code in PR #6784:
URL: https://github.com/apache/hadoop/pull/6784#discussion_r1598472326
##########
hadoop-hdfs-project/hadoop-hdfs-rbf/src/test/java/org/apache/hadoop/hdfs/server/federation/router/TestRouterRpc.java:
##########
@@ -1224,6 +1239,26 @@ public void testProxyConcatFile() throws Exception {
String badPath = "/unknownlocation/unknowndir";
compareResponses(routerProtocol, nnProtocol, m,
new Object[] {badPath, new String[] {routerFile}});
+
+ // Test when concat trg is a empty file
+ createFile(routerFS, existingFile, existingFileSize);
+ String sameRouterEmptyFile =
+ cluster.getFederatedTestDirectoryForNS(sameNameservice) +
+ "_newemptyfile";
+ createFile(routerFS, sameRouterEmptyFile, 0);
+ // Concat in same namespaces, succeeds
+ testConcat(existingFile, sameRouterEmptyFile, false);
+ FileStatus mergedStatus = getFileStatus(routerFS, sameRouterEmptyFile);
+ assertEquals(existingFileSize, mergedStatus.getLen());
+
+ // Test when concat srclist has some empty file, namenode will throw IOException.
+ String srcEmptyFile = cluster.getFederatedTestDirectoryForNS(sameNameservice) + "_srcEmptyFile";
+ createFile(routerFS, srcEmptyFile, 0);
+ String targetFile = cluster.getFederatedTestDirectoryForNS(sameNameservice) + "_targetFile";
+ createFile(routerFS, targetFile, existingFileSize);
+ // Concat in same namespaces, succeeds
+ testConcat(srcEmptyFile, targetFile, true, true,
Review Comment:
Done. Thanks
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Re: [PR] HDFS-17509. RBF: Fix ClientProtocol.concat will throw NPE if tgr is a empty file. [hadoop]
Posted by "LiuGuH (via GitHub)" <gi...@apache.org>.
LiuGuH commented on code in PR #6784:
URL: https://github.com/apache/hadoop/pull/6784#discussion_r1595385718
##########
hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/router/RouterClientProtocol.java:
##########
@@ -667,39 +667,28 @@ public void rename2(final String src, final String dst,
public void concat(String trg, String[] src) throws IOException {
rpcServer.checkOperation(NameNode.OperationCategory.WRITE);
- // See if the src and target files are all in the same namespace
- LocatedBlocks targetBlocks = getBlockLocations(trg, 0, 1);
- if (targetBlocks == null) {
- throw new IOException("Cannot locate blocks for target file - " + trg);
- }
- LocatedBlock lastLocatedBlock = targetBlocks.getLastLocatedBlock();
- String targetBlockPoolId = lastLocatedBlock.getBlock().getBlockPoolId();
- for (String source : src) {
- LocatedBlocks sourceBlocks = getBlockLocations(source, 0, 1);
- if (sourceBlocks == null) {
- throw new IOException(
- "Cannot located blocks for source file " + source);
- }
- String sourceBlockPoolId =
- sourceBlocks.getLastLocatedBlock().getBlock().getBlockPoolId();
- if (!sourceBlockPoolId.equals(targetBlockPoolId)) {
- throw new IOException("Cannot concatenate source file " + source
- + " because it is located in a different namespace"
- + " with block pool id " + sourceBlockPoolId
- + " from the target file with block pool id "
- + targetBlockPoolId);
- }
- }
+ // Concat only effects when all files in same namespace.
+ // And in router view, a file only exists in one RemoteLocation.
Review Comment:
Emmm, there is a scene .
1) If a file is already exist in two nameservices. And the add router mount.
NS1 /user/test/file
NS2 /user/test/file
2) Add router mount.
hdfs dfsrouteradmin -add /user/test NS1,NS2 /user/test -order RANDOM
3) getDestination
hdfs dfsrouteradmin -getDestination /user/test/file
Will return NS1,NS2
For a file in Router view with more than one nameservices, I think should thrown Exception for concat method.
Look forward to your guidance , thanks ! @ZanderXu
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Re: [PR] HDFS-17509. RBF: Fix ClientProtocol.concat will throw NPE if tgr is a empty file. [hadoop]
Posted by "ZanderXu (via GitHub)" <gi...@apache.org>.
ZanderXu commented on code in PR #6784:
URL: https://github.com/apache/hadoop/pull/6784#discussion_r1595242159
##########
hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/router/RouterClientProtocol.java:
##########
@@ -667,39 +667,28 @@ public void rename2(final String src, final String dst,
public void concat(String trg, String[] src) throws IOException {
rpcServer.checkOperation(NameNode.OperationCategory.WRITE);
- // See if the src and target files are all in the same namespace
- LocatedBlocks targetBlocks = getBlockLocations(trg, 0, 1);
- if (targetBlocks == null) {
- throw new IOException("Cannot locate blocks for target file - " + trg);
- }
- LocatedBlock lastLocatedBlock = targetBlocks.getLastLocatedBlock();
- String targetBlockPoolId = lastLocatedBlock.getBlock().getBlockPoolId();
- for (String source : src) {
- LocatedBlocks sourceBlocks = getBlockLocations(source, 0, 1);
- if (sourceBlocks == null) {
- throw new IOException(
- "Cannot located blocks for source file " + source);
- }
- String sourceBlockPoolId =
- sourceBlocks.getLastLocatedBlock().getBlock().getBlockPoolId();
- if (!sourceBlockPoolId.equals(targetBlockPoolId)) {
- throw new IOException("Cannot concatenate source file " + source
- + " because it is located in a different namespace"
- + " with block pool id " + sourceBlockPoolId
- + " from the target file with block pool id "
- + targetBlockPoolId);
- }
- }
+ // Concat only effects when all files in same namespace.
+ // And in router view, a file only exists in one RemoteLocation.
Review Comment:
Normally a file only exits in one Namespace. But maybe multiple namespaces contain this file and RBF returns the file in the first namespace to the client.
##########
hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/router/RouterClientProtocol.java:
##########
@@ -667,39 +667,28 @@ public void rename2(final String src, final String dst,
public void concat(String trg, String[] src) throws IOException {
rpcServer.checkOperation(NameNode.OperationCategory.WRITE);
- // See if the src and target files are all in the same namespace
- LocatedBlocks targetBlocks = getBlockLocations(trg, 0, 1);
- if (targetBlocks == null) {
- throw new IOException("Cannot locate blocks for target file - " + trg);
- }
- LocatedBlock lastLocatedBlock = targetBlocks.getLastLocatedBlock();
- String targetBlockPoolId = lastLocatedBlock.getBlock().getBlockPoolId();
- for (String source : src) {
- LocatedBlocks sourceBlocks = getBlockLocations(source, 0, 1);
- if (sourceBlocks == null) {
- throw new IOException(
- "Cannot located blocks for source file " + source);
- }
- String sourceBlockPoolId =
- sourceBlocks.getLastLocatedBlock().getBlock().getBlockPoolId();
- if (!sourceBlockPoolId.equals(targetBlockPoolId)) {
- throw new IOException("Cannot concatenate source file " + source
- + " because it is located in a different namespace"
- + " with block pool id " + sourceBlockPoolId
- + " from the target file with block pool id "
- + targetBlockPoolId);
- }
- }
+ // Concat only effects when all files in same namespace.
+ // And in router view, a file only exists in one RemoteLocation.
Review Comment:
For the empty file, maybe we can use `getFileInfo` to get the namespace that this trg belongs to.
##########
hadoop-hdfs-project/hadoop-hdfs-rbf/src/test/java/org/apache/hadoop/hdfs/server/federation/router/TestRouterRpc.java:
##########
@@ -1224,6 +1224,17 @@ public void testProxyConcatFile() throws Exception {
String badPath = "/unknownlocation/unknowndir";
compareResponses(routerProtocol, nnProtocol, m,
new Object[] {badPath, new String[] {routerFile}});
+
+ // Test when concat trg is a empty file
Review Comment:
we also need to check the empty source file.
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Re: [PR] HDFS-17509. RBF: Fix ClientProtocol.concat will throw NPE if tgr is a empty file. [hadoop]
Posted by "LiuGuH (via GitHub)" <gi...@apache.org>.
LiuGuH commented on code in PR #6784:
URL: https://github.com/apache/hadoop/pull/6784#discussion_r1596579974
##########
hadoop-hdfs-project/hadoop-hdfs-rbf/src/test/java/org/apache/hadoop/hdfs/server/federation/router/TestRouterRpc.java:
##########
@@ -1224,6 +1224,17 @@ public void testProxyConcatFile() throws Exception {
String badPath = "/unknownlocation/unknowndir";
compareResponses(routerProtocol, nnProtocol, m,
new Object[] {badPath, new String[] {routerFile}});
+
+ // Test when concat trg is a empty file
Review Comment:
When there is a empty source file, it will throw exception in namenode. This behaiver is as same as with dfsrouter.
And when trg is a empty file, it is diffrent . Without dfsrouter ,it success. And with dfsrouter, it will throw Exception.
So I think there is no need to check the empty source file. Or implement it in another PR.
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Re: [PR] HDFS-17509. RBF: Fix ClientProtocol.concat will throw NPE if tgr is a empty file. [hadoop]
Posted by "hadoop-yetus (via GitHub)" <gi...@apache.org>.
hadoop-yetus commented on PR #6784:
URL: https://github.com/apache/hadoop/pull/6784#issuecomment-2107945602
:broken_heart: **-1 overall**
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| | hadoop.hdfs.server.federation.store.driver.TestStateStoreMySQL |
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Re: [PR] HDFS-17509. RBF: Fix ClientProtocol.concat will throw NPE if tgr is a empty file. [hadoop]
Posted by "ZanderXu (via GitHub)" <gi...@apache.org>.
ZanderXu commented on code in PR #6784:
URL: https://github.com/apache/hadoop/pull/6784#discussion_r1597413470
##########
hadoop-hdfs-project/hadoop-hdfs-rbf/src/test/java/org/apache/hadoop/hdfs/server/federation/router/TestRouterRpc.java:
##########
@@ -1224,6 +1224,17 @@ public void testProxyConcatFile() throws Exception {
String badPath = "/unknownlocation/unknowndir";
compareResponses(routerProtocol, nnProtocol, m,
new Object[] {badPath, new String[] {routerFile}});
+
+ // Test when concat trg is a empty file
Review Comment:
Can you modify the UT to cover the case that one or more source files are empty?
##########
hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/router/RouterClientProtocol.java:
##########
@@ -1009,6 +1000,20 @@ public HdfsFileStatus getFileInfo(String src) throws IOException {
return ret;
}
+ public RemoteResult<RemoteLocation, HdfsFileStatus> getFileRemoteResult(String path)
+ throws IOException {
+ rpcServer.checkOperation(NameNode.OperationCategory.READ);
+
+ final List<RemoteLocation> locations = rpcServer.getLocationsForPath(path, false, false);
+ RemoteMethod method =
+ new RemoteMethod("getFileInfo", new Class<?>[] {String.class}, new RemoteParam());
+ // Check for file information sequentially
+ RemoteResult<RemoteLocation, HdfsFileStatus> result =
Review Comment:
RBF is simply responsible for locating the downstream namespace and then proxying the request.
So if the input path is only mounted to one namespace, RBF only needs to proxy it directly. RBF does not need to check if the file exists in this only one downstream namespace, right?
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Re: [PR] HDFS-17509. RBF: Fix ClientProtocol.concat will throw NPE if tgr is a empty file. [hadoop]
Posted by "hadoop-yetus (via GitHub)" <gi...@apache.org>.
hadoop-yetus commented on PR #6784:
URL: https://github.com/apache/hadoop/pull/6784#issuecomment-2104604443
:confetti_ball: **+1 overall**
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Re: [PR] HDFS-17509. RBF: Fix ClientProtocol.concat will throw NPE if tgr is a empty file. [hadoop]
Posted by "hadoop-yetus (via GitHub)" <gi...@apache.org>.
hadoop-yetus commented on PR #6784:
URL: https://github.com/apache/hadoop/pull/6784#issuecomment-2107394624
:broken_heart: **-1 overall**
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| | | 108m 34s | | |
| Reason | Tests |
|-------:|:------|
| Failed junit tests | hadoop.hdfs.server.federation.router.security.token.TestSQLDelegationTokenSecretManagerImpl |
| | hadoop.hdfs.server.federation.store.driver.TestStateStoreMySQL |
| Subsystem | Report/Notes |
|----------:|:-------------|
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Re: [PR] HDFS-17509. RBF: Fix ClientProtocol.concat will throw NPE if tgr is a empty file. [hadoop]
Posted by "LiuGuH (via GitHub)" <gi...@apache.org>.
LiuGuH commented on code in PR #6784:
URL: https://github.com/apache/hadoop/pull/6784#discussion_r1597788935
##########
hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/router/RouterClientProtocol.java:
##########
@@ -1009,6 +1000,20 @@ public HdfsFileStatus getFileInfo(String src) throws IOException {
return ret;
}
+ public RemoteResult<RemoteLocation, HdfsFileStatus> getFileRemoteResult(String path)
+ throws IOException {
+ rpcServer.checkOperation(NameNode.OperationCategory.READ);
+
+ final List<RemoteLocation> locations = rpcServer.getLocationsForPath(path, false, false);
+ RemoteMethod method =
+ new RemoteMethod("getFileInfo", new Class<?>[] {String.class}, new RemoteParam());
+ // Check for file information sequentially
+ RemoteResult<RemoteLocation, HdfsFileStatus> result =
Review Comment:
OK
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Re: [PR] HDFS-17509. RBF: Fix ClientProtocol.concat will throw NPE if tgr is a empty file. [hadoop]
Posted by "hadoop-yetus (via GitHub)" <gi...@apache.org>.
hadoop-yetus commented on PR #6784:
URL: https://github.com/apache/hadoop/pull/6784#issuecomment-2107054325
:confetti_ball: **+1 overall**
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|:----:|----------:|--------:|:--------:|:-------:|
|||| _ Prechecks _ |
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|||| _ Other Tests _ |
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| | | 436m 32s | | |
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| Optional Tests | dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient spotbugs checkstyle codespell detsecrets |
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| modules | C: hadoop-hdfs-project/hadoop-hdfs-rbf U: hadoop-hdfs-project/hadoop-hdfs-rbf |
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Re: [PR] HDFS-17509. RBF: Fix ClientProtocol.concat will throw NPE if tgr is a empty file. [hadoop]
Posted by "hadoop-yetus (via GitHub)" <gi...@apache.org>.
hadoop-yetus commented on PR #6784:
URL: https://github.com/apache/hadoop/pull/6784#issuecomment-2101225659
:confetti_ball: **+1 overall**
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|:----:|----------:|--------:|:--------:|:-------:|
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| | | 595m 14s | | |
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Re: [PR] HDFS-17509. RBF: Fix ClientProtocol.concat will throw NPE if tgr is a empty file. [hadoop]
Posted by "ZanderXu (via GitHub)" <gi...@apache.org>.
ZanderXu commented on code in PR #6784:
URL: https://github.com/apache/hadoop/pull/6784#discussion_r1596217290
##########
hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/router/RouterClientProtocol.java:
##########
@@ -667,39 +667,28 @@ public void rename2(final String src, final String dst,
public void concat(String trg, String[] src) throws IOException {
rpcServer.checkOperation(NameNode.OperationCategory.WRITE);
- // See if the src and target files are all in the same namespace
- LocatedBlocks targetBlocks = getBlockLocations(trg, 0, 1);
- if (targetBlocks == null) {
- throw new IOException("Cannot locate blocks for target file - " + trg);
- }
- LocatedBlock lastLocatedBlock = targetBlocks.getLastLocatedBlock();
- String targetBlockPoolId = lastLocatedBlock.getBlock().getBlockPoolId();
- for (String source : src) {
- LocatedBlocks sourceBlocks = getBlockLocations(source, 0, 1);
- if (sourceBlocks == null) {
- throw new IOException(
- "Cannot located blocks for source file " + source);
- }
- String sourceBlockPoolId =
- sourceBlocks.getLastLocatedBlock().getBlock().getBlockPoolId();
- if (!sourceBlockPoolId.equals(targetBlockPoolId)) {
- throw new IOException("Cannot concatenate source file " + source
- + " because it is located in a different namespace"
- + " with block pool id " + sourceBlockPoolId
- + " from the target file with block pool id "
- + targetBlockPoolId);
- }
- }
+ // Concat only effects when all files in same namespace.
+ // And in router view, a file only exists in one RemoteLocation.
Review Comment:
we don't need to get NSId or BPId from the result of getFileInfo, you can refer to `invokeSequential` to loop all namespaces one by one.
1. Get all namespaces of the input path.
2. Send getFileInfo to each namespace one by one
3. The first namespace that the result of getFileInfo is not null is the one we need
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Re: [PR] HDFS-17509. RBF: Fix ClientProtocol.concat will throw NPE if tgr is a empty file. [hadoop]
Posted by "ZanderXu (via GitHub)" <gi...@apache.org>.
ZanderXu commented on code in PR #6784:
URL: https://github.com/apache/hadoop/pull/6784#discussion_r1598204990
##########
hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/router/RouterClientProtocol.java:
##########
@@ -1009,6 +999,27 @@ public HdfsFileStatus getFileInfo(String src) throws IOException {
return ret;
}
+ public RemoteLocation getFileRemoteLocation(String path) throws IOException {
+ rpcServer.checkOperation(NameNode.OperationCategory.READ);
+
+ final List<RemoteLocation> locations = rpcServer.getLocationsForPath(path, false, false);
+ if (locations.size() == 1)
Review Comment:
```
if (locations.size() == 1) {
return locations.get(0);
}
```
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Re: [PR] HDFS-17509. RBF: Fix ClientProtocol.concat will throw NPE if tgr is a empty file. [hadoop]
Posted by "hadoop-yetus (via GitHub)" <gi...@apache.org>.
hadoop-yetus commented on PR #6784:
URL: https://github.com/apache/hadoop/pull/6784#issuecomment-2090029891
:broken_heart: **-1 overall**
| Vote | Subsystem | Runtime | Logfile | Comment |
|:----:|----------:|--------:|:--------:|:-------:|
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|||| _ Prechecks _ |
| +1 :green_heart: | dupname | 0m 1s | | No case conflicting files found. |
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|||| _ trunk Compile Tests _ |
| +1 :green_heart: | mvninstall | 32m 30s | | trunk passed |
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| +1 :green_heart: | spotbugs | 0m 51s | | trunk passed |
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|||| _ Patch Compile Tests _ |
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| +1 :green_heart: | compile | 0m 19s | | the patch passed with JDK Ubuntu-11.0.22+7-post-Ubuntu-0ubuntu220.04.1 |
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| +1 :green_heart: | javadoc | 0m 16s | | the patch passed with JDK Private Build-1.8.0_402-8u402-ga-2ubuntu1~20.04-b06 |
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|||| _ Other Tests _ |
| +1 :green_heart: | unit | 29m 16s | | hadoop-hdfs-rbf in the patch passed. |
| +1 :green_heart: | asflicense | 0m 27s | | The patch does not generate ASF License warnings. |
| | | 119m 24s | | |
| Reason | Tests |
|-------:|:------|
| SpotBugs | module:hadoop-hdfs-project/hadoop-hdfs-rbf |
| | Redundant nullcheck of locations, which is known to be non-null in org.apache.hadoop.hdfs.server.federation.router.RouterClientProtocol.concat(String, String[]) Redundant null check at RouterClientProtocol.java:is known to be non-null in org.apache.hadoop.hdfs.server.federation.router.RouterClientProtocol.concat(String, String[]) Redundant null check at RouterClientProtocol.java:[line 673] |
| | Redundant nullcheck of srcLocations, which is known to be non-null in org.apache.hadoop.hdfs.server.federation.router.RouterClientProtocol.concat(String, String[]) Redundant null check at RouterClientProtocol.java:is known to be non-null in org.apache.hadoop.hdfs.server.federation.router.RouterClientProtocol.concat(String, String[]) Redundant null check at RouterClientProtocol.java:[line 685] |
| Subsystem | Report/Notes |
|----------:|:-------------|
| Docker | ClientAPI=1.45 ServerAPI=1.45 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-6784/2/artifact/out/Dockerfile |
| GITHUB PR | https://github.com/apache/hadoop/pull/6784 |
| Optional Tests | dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient spotbugs checkstyle codespell detsecrets |
| uname | Linux fa3740727844 5.15.0-94-generic #104-Ubuntu SMP Tue Jan 9 15:25:40 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | dev-support/bin/hadoop.sh |
| git revision | trunk / 7b8c582c6534f80e7d98b33f9602c412ad5df6a5 |
| Default Java | Private Build-1.8.0_402-8u402-ga-2ubuntu1~20.04-b06 |
| Multi-JDK versions | /usr/lib/jvm/java-11-openjdk-amd64:Ubuntu-11.0.22+7-post-Ubuntu-0ubuntu220.04.1 /usr/lib/jvm/java-8-openjdk-amd64:Private Build-1.8.0_402-8u402-ga-2ubuntu1~20.04-b06 |
| Test Results | https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-6784/2/testReport/ |
| Max. process+thread count | 3036 (vs. ulimit of 5500) |
| modules | C: hadoop-hdfs-project/hadoop-hdfs-rbf U: hadoop-hdfs-project/hadoop-hdfs-rbf |
| Console output | https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-6784/2/console |
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Re: [PR] HDFS-17509. RBF: Fix ClientProtocol.concat will throw NPE if tgr is a empty file. [hadoop]
Posted by "LiuGuH (via GitHub)" <gi...@apache.org>.
LiuGuH commented on code in PR #6784:
URL: https://github.com/apache/hadoop/pull/6784#discussion_r1597405273
##########
hadoop-hdfs-project/hadoop-hdfs-rbf/src/test/java/org/apache/hadoop/hdfs/server/federation/router/TestRouterRpc.java:
##########
@@ -1224,6 +1224,17 @@ public void testProxyConcatFile() throws Exception {
String badPath = "/unknownlocation/unknowndir";
compareResponses(routerProtocol, nnProtocol, m,
new Object[] {badPath, new String[] {routerFile}});
+
+ // Test when concat trg is a empty file
Review Comment:
When srclist has a empty file ,both namenode and dfsrouter will throw the same IOException
https://github.com/apache/hadoop/blob/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirConcatOp.java#L153-L155
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Re: [PR] HDFS-17509. RBF: Fix ClientProtocol.concat will throw NPE if tgr is a empty file. [hadoop]
Posted by "LiuGuH (via GitHub)" <gi...@apache.org>.
LiuGuH commented on code in PR #6784:
URL: https://github.com/apache/hadoop/pull/6784#discussion_r1596189673
##########
hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/router/RouterClientProtocol.java:
##########
@@ -667,39 +667,28 @@ public void rename2(final String src, final String dst,
public void concat(String trg, String[] src) throws IOException {
rpcServer.checkOperation(NameNode.OperationCategory.WRITE);
- // See if the src and target files are all in the same namespace
- LocatedBlocks targetBlocks = getBlockLocations(trg, 0, 1);
- if (targetBlocks == null) {
- throw new IOException("Cannot locate blocks for target file - " + trg);
- }
- LocatedBlock lastLocatedBlock = targetBlocks.getLastLocatedBlock();
- String targetBlockPoolId = lastLocatedBlock.getBlock().getBlockPoolId();
- for (String source : src) {
- LocatedBlocks sourceBlocks = getBlockLocations(source, 0, 1);
- if (sourceBlocks == null) {
- throw new IOException(
- "Cannot located blocks for source file " + source);
- }
- String sourceBlockPoolId =
- sourceBlocks.getLastLocatedBlock().getBlock().getBlockPoolId();
- if (!sourceBlockPoolId.equals(targetBlockPoolId)) {
- throw new IOException("Cannot concatenate source file " + source
- + " because it is located in a different namespace"
- + " with block pool id " + sourceBlockPoolId
- + " from the target file with block pool id "
- + targetBlockPoolId);
- }
- }
+ // Concat only effects when all files in same namespace.
+ // And in router view, a file only exists in one RemoteLocation.
Review Comment:
>May we can use getFileInfo instead of getBlockLocation to fix this bug. BTW, getFileInfo is no needed if this path only mounts to one namespace.
At the beginning , I consider use getFileInfo . But the problem is that HdfsFileStatus does not have any information about nameservices or blockpoolid, only LocatedBlock has.
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Re: [PR] HDFS-17509. RBF: Fix ClientProtocol.concat will throw NPE if tgr is a empty file. [hadoop]
Posted by "ZanderXu (via GitHub)" <gi...@apache.org>.
ZanderXu commented on PR #6784:
URL: https://github.com/apache/hadoop/pull/6784#issuecomment-2116524515
Merged. Thanks @LiuGuH for your contribution.
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Re: [PR] HDFS-17509. RBF: Fix ClientProtocol.concat will throw NPE if tgr is a empty file. [hadoop]
Posted by "LiuGuH (via GitHub)" <gi...@apache.org>.
LiuGuH commented on code in PR #6784:
URL: https://github.com/apache/hadoop/pull/6784#discussion_r1597404047
##########
hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/router/RouterClientProtocol.java:
##########
@@ -1009,6 +1000,20 @@ public HdfsFileStatus getFileInfo(String src) throws IOException {
return ret;
}
+ public RemoteResult<RemoteLocation, HdfsFileStatus> getFileRemoteResult(String path)
+ throws IOException {
+ rpcServer.checkOperation(NameNode.OperationCategory.READ);
+
+ final List<RemoteLocation> locations = rpcServer.getLocationsForPath(path, false, false);
+ RemoteMethod method =
+ new RemoteMethod("getFileInfo", new Class<?>[] {String.class}, new RemoteParam());
+ // Check for file information sequentially
+ RemoteResult<RemoteLocation, HdfsFileStatus> result =
Review Comment:
This may not be true. Even locations only contains one namespace, it still cannot decide whether the file exists or not. So getFileInfo is better to execute at least once. Or it will send to namenode and namenode throw file is not found.
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Re: [PR] HDFS-17509. RBF: Fix ClientProtocol.concat will throw NPE if tgr is a empty file. [hadoop]
Posted by "LiuGuH (via GitHub)" <gi...@apache.org>.
LiuGuH commented on code in PR #6784:
URL: https://github.com/apache/hadoop/pull/6784#discussion_r1595273510
##########
hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/router/RouterClientProtocol.java:
##########
@@ -667,39 +667,28 @@ public void rename2(final String src, final String dst,
public void concat(String trg, String[] src) throws IOException {
rpcServer.checkOperation(NameNode.OperationCategory.WRITE);
- // See if the src and target files are all in the same namespace
- LocatedBlocks targetBlocks = getBlockLocations(trg, 0, 1);
- if (targetBlocks == null) {
- throw new IOException("Cannot locate blocks for target file - " + trg);
- }
- LocatedBlock lastLocatedBlock = targetBlocks.getLastLocatedBlock();
- String targetBlockPoolId = lastLocatedBlock.getBlock().getBlockPoolId();
- for (String source : src) {
- LocatedBlocks sourceBlocks = getBlockLocations(source, 0, 1);
- if (sourceBlocks == null) {
- throw new IOException(
- "Cannot located blocks for source file " + source);
- }
- String sourceBlockPoolId =
- sourceBlocks.getLastLocatedBlock().getBlock().getBlockPoolId();
- if (!sourceBlockPoolId.equals(targetBlockPoolId)) {
- throw new IOException("Cannot concatenate source file " + source
- + " because it is located in a different namespace"
- + " with block pool id " + sourceBlockPoolId
- + " from the target file with block pool id "
- + targetBlockPoolId);
- }
- }
+ // Concat only effects when all files in same namespace.
+ // And in router view, a file only exists in one RemoteLocation.
Review Comment:
DFSRouter with different order(HASH,LOCAL, RANDOM, HASH_ALL, SPACE) , a file cannot be written into two or more nameservices.
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Re: [PR] HDFS-17509. RBF: Fix ClientProtocol.concat will throw NPE if tgr is a empty file. [hadoop]
Posted by "ZanderXu (via GitHub)" <gi...@apache.org>.
ZanderXu commented on code in PR #6784:
URL: https://github.com/apache/hadoop/pull/6784#discussion_r1598226242
##########
hadoop-hdfs-project/hadoop-hdfs-rbf/src/test/java/org/apache/hadoop/hdfs/server/federation/router/TestRouterRpc.java:
##########
@@ -1224,6 +1239,26 @@ public void testProxyConcatFile() throws Exception {
String badPath = "/unknownlocation/unknowndir";
compareResponses(routerProtocol, nnProtocol, m,
new Object[] {badPath, new String[] {routerFile}});
+
+ // Test when concat trg is a empty file
+ createFile(routerFS, existingFile, existingFileSize);
+ String sameRouterEmptyFile =
+ cluster.getFederatedTestDirectoryForNS(sameNameservice) +
+ "_newemptyfile";
+ createFile(routerFS, sameRouterEmptyFile, 0);
+ // Concat in same namespaces, succeeds
+ testConcat(existingFile, sameRouterEmptyFile, false);
+ FileStatus mergedStatus = getFileStatus(routerFS, sameRouterEmptyFile);
+ assertEquals(existingFileSize, mergedStatus.getLen());
+
+ // Test when concat srclist has some empty file, namenode will throw IOException.
+ String srcEmptyFile = cluster.getFederatedTestDirectoryForNS(sameNameservice) + "_srcEmptyFile";
+ createFile(routerFS, srcEmptyFile, 0);
+ String targetFile = cluster.getFederatedTestDirectoryForNS(sameNameservice) + "_targetFile";
+ createFile(routerFS, targetFile, existingFileSize);
+ // Concat in same namespaces, succeeds
+ testConcat(srcEmptyFile, targetFile, true, true,
Review Comment:
here please check if the exception is `org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.HadoopIllegalArgumentException)`
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Re: [PR] HDFS-17509. RBF: Fix ClientProtocol.concat will throw NPE if tgr is a empty file. [hadoop]
Posted by "ZanderXu (via GitHub)" <gi...@apache.org>.
ZanderXu commented on code in PR #6784:
URL: https://github.com/apache/hadoop/pull/6784#discussion_r1596183555
##########
hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/router/RouterClientProtocol.java:
##########
@@ -667,39 +667,28 @@ public void rename2(final String src, final String dst,
public void concat(String trg, String[] src) throws IOException {
rpcServer.checkOperation(NameNode.OperationCategory.WRITE);
- // See if the src and target files are all in the same namespace
- LocatedBlocks targetBlocks = getBlockLocations(trg, 0, 1);
- if (targetBlocks == null) {
- throw new IOException("Cannot locate blocks for target file - " + trg);
- }
- LocatedBlock lastLocatedBlock = targetBlocks.getLastLocatedBlock();
- String targetBlockPoolId = lastLocatedBlock.getBlock().getBlockPoolId();
- for (String source : src) {
- LocatedBlocks sourceBlocks = getBlockLocations(source, 0, 1);
- if (sourceBlocks == null) {
- throw new IOException(
- "Cannot located blocks for source file " + source);
- }
- String sourceBlockPoolId =
- sourceBlocks.getLastLocatedBlock().getBlock().getBlockPoolId();
- if (!sourceBlockPoolId.equals(targetBlockPoolId)) {
- throw new IOException("Cannot concatenate source file " + source
- + " because it is located in a different namespace"
- + " with block pool id " + sourceBlockPoolId
- + " from the target file with block pool id "
- + targetBlockPoolId);
- }
- }
+ // Concat only effects when all files in same namespace.
+ // And in router view, a file only exists in one RemoteLocation.
Review Comment:
> For a file in Router view with more than one nameservices, I think should thrown Exception for concat method.
For multiple namespaces contain one same file case, RBF just return the file in the first namespace currently, such as: getBlockLocation, getFileInfo, etc.
So If you want to thrown Exception for concat, maybe you need to modify all RPCs to throw Exception for this case.
May we can use getFileInfo instead of getBlockLocation to fix this bug. BTW, getFileInfo is no needed if this path only mounts to one namespace.
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Re: [PR] HDFS-17509. RBF: Fix ClientProtocol.concat will throw NPE if tgr is a empty file. [hadoop]
Posted by "LiuGuH (via GitHub)" <gi...@apache.org>.
LiuGuH commented on PR #6784:
URL: https://github.com/apache/hadoop/pull/6784#issuecomment-2095466774
@goiri Hi,sir. Do you have time to review this PR, thanks!
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Re: [PR] HDFS-17509. RBF: Fix ClientProtocol.concat will throw NPE if tgr is a empty file. [hadoop]
Posted by "hadoop-yetus (via GitHub)" <gi...@apache.org>.
hadoop-yetus commented on PR #6784:
URL: https://github.com/apache/hadoop/pull/6784#issuecomment-2095193170
:confetti_ball: **+1 overall**
| Vote | Subsystem | Runtime | Logfile | Comment |
|:----:|----------:|--------:|:--------:|:-------:|
| +0 :ok: | reexec | 7m 50s | | Docker mode activated. |
|||| _ Prechecks _ |
| +1 :green_heart: | dupname | 0m 0s | | No case conflicting files found. |
| +0 :ok: | codespell | 0m 0s | | codespell was not available. |
| +0 :ok: | detsecrets | 0m 0s | | detect-secrets was not available. |
| +1 :green_heart: | @author | 0m 0s | | The patch does not contain any @author tags. |
| +1 :green_heart: | test4tests | 0m 0s | | The patch appears to include 1 new or modified test files. |
|||| _ trunk Compile Tests _ |
| +1 :green_heart: | mvninstall | 32m 41s | | trunk passed |
| +1 :green_heart: | compile | 0m 25s | | trunk passed with JDK Ubuntu-11.0.22+7-post-Ubuntu-0ubuntu220.04.1 |
| +1 :green_heart: | compile | 0m 21s | | trunk passed with JDK Private Build-1.8.0_402-8u402-ga-2ubuntu1~20.04-b06 |
| +1 :green_heart: | checkstyle | 0m 22s | | trunk passed |
| +1 :green_heart: | mvnsite | 0m 27s | | trunk passed |
| +1 :green_heart: | javadoc | 0m 30s | | trunk passed with JDK Ubuntu-11.0.22+7-post-Ubuntu-0ubuntu220.04.1 |
| +1 :green_heart: | javadoc | 0m 20s | | trunk passed with JDK Private Build-1.8.0_402-8u402-ga-2ubuntu1~20.04-b06 |
| +1 :green_heart: | spotbugs | 0m 52s | | trunk passed |
| +1 :green_heart: | shadedclient | 20m 25s | | branch has no errors when building and testing our client artifacts. |
|||| _ Patch Compile Tests _ |
| +1 :green_heart: | mvninstall | 0m 19s | | the patch passed |
| +1 :green_heart: | compile | 0m 20s | | the patch passed with JDK Ubuntu-11.0.22+7-post-Ubuntu-0ubuntu220.04.1 |
| +1 :green_heart: | javac | 0m 20s | | the patch passed |
| +1 :green_heart: | compile | 0m 17s | | the patch passed with JDK Private Build-1.8.0_402-8u402-ga-2ubuntu1~20.04-b06 |
| +1 :green_heart: | javac | 0m 17s | | the patch passed |
| +1 :green_heart: | blanks | 0m 0s | | The patch has no blanks issues. |
| +1 :green_heart: | checkstyle | 0m 13s | | the patch passed |
| +1 :green_heart: | mvnsite | 0m 20s | | the patch passed |
| +1 :green_heart: | javadoc | 0m 18s | | the patch passed with JDK Ubuntu-11.0.22+7-post-Ubuntu-0ubuntu220.04.1 |
| +1 :green_heart: | javadoc | 0m 17s | | the patch passed with JDK Private Build-1.8.0_402-8u402-ga-2ubuntu1~20.04-b06 |
| +1 :green_heart: | spotbugs | 0m 49s | | the patch passed |
| +1 :green_heart: | shadedclient | 19m 58s | | patch has no errors when building and testing our client artifacts. |
|||| _ Other Tests _ |
| +1 :green_heart: | unit | 29m 15s | | hadoop-hdfs-rbf in the patch passed. |
| +1 :green_heart: | asflicense | 0m 26s | | The patch does not generate ASF License warnings. |
| | | 119m 54s | | |
| Subsystem | Report/Notes |
|----------:|:-------------|
| Docker | ClientAPI=1.45 ServerAPI=1.45 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-6784/4/artifact/out/Dockerfile |
| GITHUB PR | https://github.com/apache/hadoop/pull/6784 |
| Optional Tests | dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient spotbugs checkstyle codespell detsecrets |
| uname | Linux 94f53a1303cc 5.15.0-94-generic #104-Ubuntu SMP Tue Jan 9 15:25:40 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | dev-support/bin/hadoop.sh |
| git revision | trunk / 0aa6a1e016efbc5cfc3498c24b3d9ae705cfaf7f |
| Default Java | Private Build-1.8.0_402-8u402-ga-2ubuntu1~20.04-b06 |
| Multi-JDK versions | /usr/lib/jvm/java-11-openjdk-amd64:Ubuntu-11.0.22+7-post-Ubuntu-0ubuntu220.04.1 /usr/lib/jvm/java-8-openjdk-amd64:Private Build-1.8.0_402-8u402-ga-2ubuntu1~20.04-b06 |
| Test Results | https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-6784/4/testReport/ |
| Max. process+thread count | 2980 (vs. ulimit of 5500) |
| modules | C: hadoop-hdfs-project/hadoop-hdfs-rbf U: hadoop-hdfs-project/hadoop-hdfs-rbf |
| Console output | https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-6784/4/console |
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Re: [PR] HDFS-17509. RBF: Fix ClientProtocol.concat will throw NPE if tgr is a empty file. [hadoop]
Posted by "ZanderXu (via GitHub)" <gi...@apache.org>.
ZanderXu commented on code in PR #6784:
URL: https://github.com/apache/hadoop/pull/6784#discussion_r1595242159
##########
hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/router/RouterClientProtocol.java:
##########
@@ -667,39 +667,28 @@ public void rename2(final String src, final String dst,
public void concat(String trg, String[] src) throws IOException {
rpcServer.checkOperation(NameNode.OperationCategory.WRITE);
- // See if the src and target files are all in the same namespace
- LocatedBlocks targetBlocks = getBlockLocations(trg, 0, 1);
- if (targetBlocks == null) {
- throw new IOException("Cannot locate blocks for target file - " + trg);
- }
- LocatedBlock lastLocatedBlock = targetBlocks.getLastLocatedBlock();
- String targetBlockPoolId = lastLocatedBlock.getBlock().getBlockPoolId();
- for (String source : src) {
- LocatedBlocks sourceBlocks = getBlockLocations(source, 0, 1);
- if (sourceBlocks == null) {
- throw new IOException(
- "Cannot located blocks for source file " + source);
- }
- String sourceBlockPoolId =
- sourceBlocks.getLastLocatedBlock().getBlock().getBlockPoolId();
- if (!sourceBlockPoolId.equals(targetBlockPoolId)) {
- throw new IOException("Cannot concatenate source file " + source
- + " because it is located in a different namespace"
- + " with block pool id " + sourceBlockPoolId
- + " from the target file with block pool id "
- + targetBlockPoolId);
- }
- }
+ // Concat only effects when all files in same namespace.
+ // And in router view, a file only exists in one RemoteLocation.
Review Comment:
Normally a file only exits in one Namespace. But maybe multiple namespaces contain this file and RBF returns the file in the first namespace to the client.
This first namespace is got by the `OrderedResolver`.
you can refer to this case:
- /path mounts to NS1, NS2 and NS3
- NS2 and NS3 contains /path
- `OrderedResolver` returns NS1, NS2 and NS3
for this case, we should proxy this `concat` to NS2 instead of NS1, right?
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Re: [PR] HDFS-17509. RBF: Fix ClientProtocol.concat will throw NPE if tgr is a empty file. [hadoop]
Posted by "hadoop-yetus (via GitHub)" <gi...@apache.org>.
hadoop-yetus commented on PR #6784:
URL: https://github.com/apache/hadoop/pull/6784#issuecomment-2106577140
:confetti_ball: **+1 overall**
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Re: [PR] HDFS-17509. RBF: Fix ClientProtocol.concat will throw NPE if tgr is a empty file. [hadoop]
Posted by "hadoop-yetus (via GitHub)" <gi...@apache.org>.
hadoop-yetus commented on PR #6784:
URL: https://github.com/apache/hadoop/pull/6784#issuecomment-2105966551
:confetti_ball: **+1 overall**
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Re: [PR] HDFS-17509. RBF: Fix ClientProtocol.concat will throw NPE if tgr is a empty file. [hadoop]
Posted by "ZanderXu (via GitHub)" <gi...@apache.org>.
ZanderXu merged PR #6784:
URL: https://github.com/apache/hadoop/pull/6784
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Re: [PR] HDFS-17509. RBF: Fix ClientProtocol.concat will throw NPE if tgr is a empty file. [hadoop]
Posted by "LiuGuH (via GitHub)" <gi...@apache.org>.
LiuGuH commented on code in PR #6784:
URL: https://github.com/apache/hadoop/pull/6784#discussion_r1595269674
##########
hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/router/RouterClientProtocol.java:
##########
@@ -667,39 +667,28 @@ public void rename2(final String src, final String dst,
public void concat(String trg, String[] src) throws IOException {
rpcServer.checkOperation(NameNode.OperationCategory.WRITE);
- // See if the src and target files are all in the same namespace
- LocatedBlocks targetBlocks = getBlockLocations(trg, 0, 1);
- if (targetBlocks == null) {
- throw new IOException("Cannot locate blocks for target file - " + trg);
- }
- LocatedBlock lastLocatedBlock = targetBlocks.getLastLocatedBlock();
- String targetBlockPoolId = lastLocatedBlock.getBlock().getBlockPoolId();
- for (String source : src) {
- LocatedBlocks sourceBlocks = getBlockLocations(source, 0, 1);
- if (sourceBlocks == null) {
- throw new IOException(
- "Cannot located blocks for source file " + source);
- }
- String sourceBlockPoolId =
- sourceBlocks.getLastLocatedBlock().getBlock().getBlockPoolId();
- if (!sourceBlockPoolId.equals(targetBlockPoolId)) {
- throw new IOException("Cannot concatenate source file " + source
- + " because it is located in a different namespace"
- + " with block pool id " + sourceBlockPoolId
- + " from the target file with block pool id "
- + targetBlockPoolId);
- }
- }
+ // Concat only effects when all files in same namespace.
+ // And in router view, a file only exists in one RemoteLocation.
Review Comment:
Thanks for review.
> you can refer to this case:
>
> * /path mounts to NS1, NS2 and NS3
> * NS2 and NS3 contains /path
> * `OrderedResolver` returns NS1, NS2 and NS3
>
> for this case, we should proxy this `concat` to NS2 instead of NS1, right?
This only happens when /path is a directory. And for a file ,it must only be from one exactly nameservice via dfsrouter.
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Re: [PR] HDFS-17509. RBF: Fix ClientProtocol.concat will throw NPE if tgr is a empty file. [hadoop]
Posted by "hadoop-yetus (via GitHub)" <gi...@apache.org>.
hadoop-yetus commented on PR #6784:
URL: https://github.com/apache/hadoop/pull/6784#issuecomment-2095234179
:confetti_ball: **+1 overall**
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Re: [PR] HDFS-17509. RBF: Fix ClientProtocol.concat will throw NPE if tgr is a empty file. [hadoop]
Posted by "ZanderXu (via GitHub)" <gi...@apache.org>.
ZanderXu commented on code in PR #6784:
URL: https://github.com/apache/hadoop/pull/6784#discussion_r1597385087
##########
hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/router/RouterClientProtocol.java:
##########
@@ -1009,6 +1000,20 @@ public HdfsFileStatus getFileInfo(String src) throws IOException {
return ret;
}
+ public RemoteResult<RemoteLocation, HdfsFileStatus> getFileRemoteResult(String path)
+ throws IOException {
+ rpcServer.checkOperation(NameNode.OperationCategory.READ);
+
+ final List<RemoteLocation> locations = rpcServer.getLocationsForPath(path, false, false);
+ RemoteMethod method =
+ new RemoteMethod("getFileInfo", new Class<?>[] {String.class}, new RemoteParam());
+ // Check for file information sequentially
+ RemoteResult<RemoteLocation, HdfsFileStatus> result =
Review Comment:
If `locations` only contains one namespace, we can returns this namespace directly instead of getting the namespace through `getFileInfo`, right?
##########
hadoop-hdfs-project/hadoop-hdfs-rbf/src/test/java/org/apache/hadoop/hdfs/server/federation/router/TestRouterRpc.java:
##########
@@ -1224,6 +1224,17 @@ public void testProxyConcatFile() throws Exception {
String badPath = "/unknownlocation/unknowndir";
compareResponses(routerProtocol, nnProtocol, m,
new Object[] {badPath, new String[] {routerFile}});
+
+ // Test when concat trg is a empty file
Review Comment:
Do the namenode and rbf throw the same Exception?
Maybe RBF throws NPE, but NN throws `org.apache.hadoop.HadoopIllegalArgumentException`.
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Re: [PR] HDFS-17509. RBF: Fix ClientProtocol.concat will throw NPE if tgr is a empty file. [hadoop]
Posted by "hadoop-yetus (via GitHub)" <gi...@apache.org>.
hadoop-yetus commented on PR #6784:
URL: https://github.com/apache/hadoop/pull/6784#issuecomment-2105783690
:confetti_ball: **+1 overall**
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|:----:|----------:|--------:|:--------:|:-------:|
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|||| _ trunk Compile Tests _ |
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|||| _ Patch Compile Tests _ |
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| | | 176m 26s | | |
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| GITHUB PR | https://github.com/apache/hadoop/pull/6784 |
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Re: [PR] HDFS-17509. RBF: Fix ClientProtocol.concat will throw NPE if tgr is a empty file. [hadoop]
Posted by "LiuGuH (via GitHub)" <gi...@apache.org>.
LiuGuH commented on code in PR #6784:
URL: https://github.com/apache/hadoop/pull/6784#discussion_r1597789296
##########
hadoop-hdfs-project/hadoop-hdfs-rbf/src/test/java/org/apache/hadoop/hdfs/server/federation/router/TestRouterRpc.java:
##########
@@ -1224,6 +1224,17 @@ public void testProxyConcatFile() throws Exception {
String badPath = "/unknownlocation/unknowndir";
compareResponses(routerProtocol, nnProtocol, m,
new Object[] {badPath, new String[] {routerFile}});
+
+ // Test when concat trg is a empty file
Review Comment:
Add test for a empty src file
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Re: [PR] HDFS-17509. RBF: Fix ClientProtocol.concat will throw NPE if tgr is a empty file. [hadoop]
Posted by "hadoop-yetus (via GitHub)" <gi...@apache.org>.
hadoop-yetus commented on PR #6784:
URL: https://github.com/apache/hadoop/pull/6784#issuecomment-2108370233
:confetti_ball: **+1 overall**
| Vote | Subsystem | Runtime | Logfile | Comment |
|:----:|----------:|--------:|:--------:|:-------:|
|||| _ Prechecks _ |
| +1 :green_heart: | dupname | 0m 01s | | No case conflicting files found. |
| +0 :ok: | spotbugs | 0m 00s | | spotbugs executables are not available. |
| +0 :ok: | codespell | 0m 00s | | codespell was not available. |
| +0 :ok: | detsecrets | 0m 01s | | detect-secrets was not available. |
| +1 :green_heart: | @author | 0m 00s | | The patch does not contain any @author tags. |
| +1 :green_heart: | test4tests | 0m 00s | | The patch appears to include 1 new or modified test files. |
|||| _ trunk Compile Tests _ |
| +1 :green_heart: | mvninstall | 93m 29s | | trunk passed |
| +1 :green_heart: | compile | 5m 23s | | trunk passed |
| +1 :green_heart: | checkstyle | 4m 56s | | trunk passed |
| +1 :green_heart: | mvnsite | 5m 19s | | trunk passed |
| +1 :green_heart: | javadoc | 4m 59s | | trunk passed |
| +1 :green_heart: | shadedclient | 152m 41s | | branch has no errors when building and testing our client artifacts. |
|||| _ Patch Compile Tests _ |
| +1 :green_heart: | mvninstall | 3m 10s | | the patch passed |
| +1 :green_heart: | compile | 2m 20s | | the patch passed |
| +1 :green_heart: | javac | 2m 20s | | the patch passed |
| +1 :green_heart: | blanks | 0m 00s | | The patch has no blanks issues. |
| +1 :green_heart: | checkstyle | 2m 05s | | the patch passed |
| +1 :green_heart: | mvnsite | 2m 38s | | the patch passed |
| +1 :green_heart: | javadoc | 2m 23s | | the patch passed |
| +1 :green_heart: | shadedclient | 161m 35s | | patch has no errors when building and testing our client artifacts. |
|||| _ Other Tests _ |
| +1 :green_heart: | asflicense | 7m 49s | | The patch does not generate ASF License warnings. |
| | | 434m 01s | | |
| Subsystem | Report/Notes |
|----------:|:-------------|
| GITHUB PR | https://github.com/apache/hadoop/pull/6784 |
| Optional Tests | dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient spotbugs checkstyle codespell detsecrets |
| uname | MINGW64_NT-10.0-17763 e1b5e8df9373 3.4.10-87d57229.x86_64 2024-02-14 20:17 UTC x86_64 Msys |
| Build tool | maven |
| Personality | /c/hadoop/dev-support/bin/hadoop.sh |
| git revision | trunk / 0c3ea013638be3e91a7972c80cf694a1447ea1a0 |
| Default Java | Azul Systems, Inc.-1.8.0_332-b09 |
| Test Results | https://ci-hadoop.apache.org/job/hadoop-multibranch-windows-10/job/PR-6784/5/testReport/ |
| modules | C: hadoop-hdfs-project/hadoop-hdfs-rbf U: hadoop-hdfs-project/hadoop-hdfs-rbf |
| Console output | https://ci-hadoop.apache.org/job/hadoop-multibranch-windows-10/job/PR-6784/5/console |
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