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Posted to common-issues@hadoop.apache.org by "kokonguyen191 (via GitHub)" <gi...@apache.org> on 2026/04/23 08:40:16 UTC
[PR] HDFS-17910. [ARR] Support async listOpenFiles for routers [hadoop]
kokonguyen191 opened a new pull request, #8454:
URL: https://github.com/apache/hadoop/pull/8454
### Description of PR
See HDFS-17632 for more details on implementation and logic. This ticket aims to add the async version to `RouterAsyncClientProtocol`
### How was this patch tested?
UTs
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Re: [PR] HDFS-17910. [ARR] Support async listOpenFiles for routers [hadoop]
Posted by "pan3793 (via GitHub)" <gi...@apache.org>.
pan3793 commented on PR #8454:
URL: https://github.com/apache/hadoop/pull/8454#issuecomment-4332053025
@kokonguyen191 and reviewers, we are still at the early stage of CI migration from Jenkins to GitHub Actions, it's not a blocker for this PR, but we will likely enforce that soon.
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Re: [PR] HDFS-17910. [ARR] Support async listOpenFiles for routers [hadoop]
Posted by "kokonguyen191 (via GitHub)" <gi...@apache.org>.
kokonguyen191 commented on PR #8454:
URL: https://github.com/apache/hadoop/pull/8454#issuecomment-4302994798
Hi @hfutatzhanghb, can you check this PR out if you have some free time? Thanks!
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Re: [PR] HDFS-17910. [ARR] Support async listOpenFiles for routers [hadoop]
Posted by "hfutatzhanghb (via GitHub)" <gi...@apache.org>.
hfutatzhanghb commented on PR #8454:
URL: https://github.com/apache/hadoop/pull/8454#issuecomment-4349589624
@kokonguyen191 @KeeProMise @pan3793 I think we can merge this PR into trunk first? What's your opinions？
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Re: [PR] HDFS-17910. [ARR] Support async listOpenFiles for routers [hadoop]
Posted by "hfutatzhanghb (via GitHub)" <gi...@apache.org>.
hfutatzhanghb commented on PR #8454:
URL: https://github.com/apache/hadoop/pull/8454#issuecomment-4321346295
@kokonguyen191 please fix the checkstyle warning. Others LGTM. Thanks.
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Re: [PR] HDFS-17910. [ARR] Support async listOpenFiles for routers [hadoop]
Posted by "pan3793 (via GitHub)" <gi...@apache.org>.
pan3793 commented on PR #8454:
URL: https://github.com/apache/hadoop/pull/8454#issuecomment-4331903608
@kokonguyen191, we currently run GitHub Actions workflows on the contributors' forked repo, it seems that your account has some issues
<img width="974" height="335" alt="image" src="https://github.com/user-attachments/assets/ea64b4e9-b415-4fbe-8ea3-aaf7fcd2b14c" />
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Re: [PR] HDFS-17910. [ARR] Support async listOpenFiles for routers [hadoop]
Posted by "pan3793 (via GitHub)" <gi...@apache.org>.
pan3793 commented on PR #8454:
URL: https://github.com/apache/hadoop/pull/8454#issuecomment-4384688416
@ZanderXu, don't forget to update `Fix Version/s` in Jira ticket after merging PR.
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Re: [PR] HDFS-17910. [ARR] Support async listOpenFiles for routers [hadoop]
Posted by "hadoop-yetus (via GitHub)" <gi...@apache.org>.
hadoop-yetus commented on PR #8454:
URL: https://github.com/apache/hadoop/pull/8454#issuecomment-4312501620
:confetti_ball: **+1 overall**
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Re: [PR] HDFS-17910. [ARR] Support async listOpenFiles for routers [hadoop]
Posted by "hadoop-yetus (via GitHub)" <gi...@apache.org>.
hadoop-yetus commented on PR #8454:
URL: https://github.com/apache/hadoop/pull/8454#issuecomment-4323887836
:confetti_ball: **+1 overall**
| Vote | Subsystem | Runtime | Logfile | Comment |
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| Powered by | Apache Yetus 0.14.1 https://yetus.apache.org |
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Re: [PR] HDFS-17910. [ARR] Support async listOpenFiles for routers [hadoop]
Posted by "KeeProMise (via GitHub)" <gi...@apache.org>.
KeeProMise commented on PR #8454:
URL: https://github.com/apache/hadoop/pull/8454#issuecomment-4311390427
@kokonguyen191 LGTM aside from @ZanderXu feedback.
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Re: [PR] HDFS-17910. [ARR] Support async listOpenFiles for routers [hadoop]
Posted by "hfutatzhanghb (via GitHub)" <gi...@apache.org>.
hfutatzhanghb commented on code in PR #8454:
URL: https://github.com/apache/hadoop/pull/8454#discussion_r3136346342
##########
hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/router/async/RouterAsyncClientProtocol.java:
##########
@@ -839,6 +843,26 @@ public ReplicatedBlockStats getReplicatedBlockStats() throws IOException {
return asyncReturn(ReplicatedBlockStats.class);
}
+ @Override
+ public BatchedEntries<OpenFileEntry> listOpenFiles(long prevId,
+ EnumSet<OpenFilesIterator.OpenFilesType> openFilesTypes, String path)
+ throws IOException {
+ rpcServer.checkOperation(NameNode.OperationCategory.READ, true);
+ List<RemoteLocation> locations = rpcServer.getLocationsForPath(path, false, false);
+ RemoteMethod method =
+ new RemoteMethod("listOpenFiles", new Class<?>[] {long.class, EnumSet.class, String.class},
+ prevId, openFilesTypes, new RemoteParam());
+ // Returns Map<RemoteLocation, BatchedEntries>
Review Comment:
Remove this comment?
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Re: [PR] HDFS-17910. [ARR] Support async listOpenFiles for routers [hadoop]
Posted by "hfutatzhanghb (via GitHub)" <gi...@apache.org>.
hfutatzhanghb commented on PR #8454:
URL: https://github.com/apache/hadoop/pull/8454#issuecomment-4325221879
LGTM.
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Re: [PR] HDFS-17910. [ARR] Support async listOpenFiles for routers [hadoop]
Posted by "hadoop-yetus (via GitHub)" <gi...@apache.org>.
hadoop-yetus commented on PR #8454:
URL: https://github.com/apache/hadoop/pull/8454#issuecomment-4325978477
:confetti_ball: **+1 overall**
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|||| _ Other Tests _ |
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| +1 :green_heart: | asflicense | 0m 26s | | The patch does not generate ASF License warnings. |
| | | 107m 26s | | |
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|----------:|:-------------|
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Re: [PR] HDFS-17910. [ARR] Support async listOpenFiles for routers [hadoop]
Posted by "hadoop-yetus (via GitHub)" <gi...@apache.org>.
hadoop-yetus commented on PR #8454:
URL: https://github.com/apache/hadoop/pull/8454#issuecomment-4324851744
:confetti_ball: **+1 overall**
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|||| _ trunk Compile Tests _ |
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| | | 114m 31s | | |
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Re: [PR] HDFS-17910. [ARR] Support async listOpenFiles for routers [hadoop]
Posted by "pan3793 (via GitHub)" <gi...@apache.org>.
pan3793 commented on PR #8454:
URL: https://github.com/apache/hadoop/pull/8454#issuecomment-4405564516
Ping @ZanderXu again. None of your recently merged PR has `Fix Version/s` filed in the Jira ticket, missing such info will largely confuse developers/users.
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Re: [PR] HDFS-17910. [ARR] Support async listOpenFiles for routers [hadoop]
Posted by "ZanderXu (via GitHub)" <gi...@apache.org>.
ZanderXu commented on code in PR #8454:
URL: https://github.com/apache/hadoop/pull/8454#discussion_r3135906015
##########
hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/router/RouterClientProtocol.java:
##########
@@ -1986,7 +1986,23 @@ public BatchedEntries<OpenFileEntry> listOpenFiles(long prevId,
prevId, openFilesTypes, new RemoteParam());
Map<RemoteLocation, BatchedEntries> results =
rpcClient.invokeConcurrent(locations, method, true, false, -1, BatchedEntries.class);
+ return mergeAndSortOpenFileListResults(results);
+ }
+ /**
+ * Merges the invocation results of listOpenFiles from downstream namespaces.
+ * To ensure no entries are skipped for the next call iteration, trims off all entries with
+ * <pre>
+ * id > min([max([entry.id for entry in entries]) for entries per namespace])
+ * </pre>
+ * then sorts the filtered results by id, in ascending order.
+ * @param results invocation results of listOpenFiles from downstream namespaces
+ * @return {@link BatchedRemoteIterator.BatchedListEntries} object of merged entries
+ * @throws IOException when one file appears in different namespaces,
+ * and the path cannot resolve to a mount point
+ */
+ protected BatchedRemoteIterator.BatchedListEntries<OpenFileEntry> mergeAndSortOpenFileListResults(
Review Comment:
`BatchedListEntries<OpenFileEntry> mergeOpenFileEntries(Map<RemoteLocation, BatchedEntries> entriesByLocation)`
##########
hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/router/async/RouterAsyncClientProtocol.java:
##########
@@ -839,6 +843,26 @@ public ReplicatedBlockStats getReplicatedBlockStats() throws IOException {
return asyncReturn(ReplicatedBlockStats.class);
}
+ @Override
+ public BatchedEntries<OpenFileEntry> listOpenFiles(long prevId,
+ EnumSet<OpenFilesIterator.OpenFilesType> openFilesTypes, String path)
+ throws IOException {
+ rpcServer.checkOperation(NameNode.OperationCategory.READ, true);
+ List<RemoteLocation> locations = rpcServer.getLocationsForPath(path, false, false);
+ RemoteMethod method =
+ new RemoteMethod("listOpenFiles", new Class<?>[] {long.class, EnumSet.class, String.class},
+ prevId, openFilesTypes, new RemoteParam());
+ // Returns Map<RemoteLocation, BatchedEntries>
+ rpcClient.invokeConcurrent(locations, method, true, false, -1,
+ BatchedEntries.class);
+
+ asyncApply(o -> {
+ Map<RemoteLocation, BatchedEntries> results = (Map<RemoteLocation, BatchedEntries>) o;
+ return mergeAndSortOpenFileListResults(results);
+ });
+ return asyncReturn(BatchedRemoteIterator.BatchedListEntries.class);
Review Comment:
`return asyncReturn(BatchedEntries.class);`?
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Re: [PR] HDFS-17910. [ARR] Support async listOpenFiles for routers [hadoop]
Posted by "kokonguyen191 (via GitHub)" <gi...@apache.org>.
kokonguyen191 commented on PR #8454:
URL: https://github.com/apache/hadoop/pull/8454#issuecomment-4311840017
Hi @ZanderXu, @KeeProMise, @hfutatzhanghb, thanks for the review. I have updated accordingly, please take another look when you are free, thanks!
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Re: [PR] HDFS-17910. [ARR] Support async listOpenFiles for routers [hadoop]
Posted by "hadoop-yetus (via GitHub)" <gi...@apache.org>.
hadoop-yetus commented on PR #8454:
URL: https://github.com/apache/hadoop/pull/8454#issuecomment-4303754678
:broken_heart: **-1 overall**
| Vote | Subsystem | Runtime | Logfile | Comment |
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| | | 126m 5s | | |
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| GITHUB PR | https://github.com/apache/hadoop/pull/8454 |
| Optional Tests | dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient spotbugs checkstyle codespell detsecrets |
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| Personality | dev-support/bin/hadoop.sh |
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| Test Results | https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-8454/1/testReport/ |
| Max. process+thread count | 3096 (vs. ulimit of 10000) |
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Re: [PR] HDFS-17910. [ARR] Support async listOpenFiles for routers [hadoop]
Posted by "hfutatzhanghb (via GitHub)" <gi...@apache.org>.
hfutatzhanghb commented on PR #8454:
URL: https://github.com/apache/hadoop/pull/8454#issuecomment-4324281966
> @kokonguyen191 LGTM. @ZanderXu @hfutatzhanghb if you have time, please help to take a look at this PR, thanks!
Okay. Let's wait for yetus +1 overall.
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Re: [PR] HDFS-17910. [ARR] Support async listOpenFiles for routers [hadoop]
Posted by "ZanderXu (via GitHub)" <gi...@apache.org>.
ZanderXu commented on PR #8454:
URL: https://github.com/apache/hadoop/pull/8454#issuecomment-4384652290
Merged. Thanks @kokonguyen191 for your contribution. Thanks @hfutatzhanghb @pan3793 @KeeProMise for your review.
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Re: [PR] HDFS-17910. [ARR] Support async listOpenFiles for routers [hadoop]
Posted by "ZanderXu (via GitHub)" <gi...@apache.org>.
ZanderXu merged PR #8454:
URL: https://github.com/apache/hadoop/pull/8454
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Re: [PR] HDFS-17910. [ARR] Support async listOpenFiles for routers [hadoop]
Posted by "kokonguyen191 (via GitHub)" <gi...@apache.org>.
kokonguyen191 commented on PR #8454:
URL: https://github.com/apache/hadoop/pull/8454#issuecomment-4332015549
@pan3793 I disabled Actions for the time being since it was spamming my email with failed runs. I'm not entirely sure what the issue is either, pinged customer service for now but github CS is notoriously slow from my experience.
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