[
https://issues.apache.org/jira/browse/HIVE-27135?focusedWorklogId=852448&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-852448
]
ASF GitHub Bot logged work on HIVE-27135:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 23/Mar/23 09:37
Start Date: 23/Mar/23 09:37
Worklog Time Spent: 10m
Work Description: deniskuzZ commented on code in PR #4114:
URL: https://github.com/apache/hive/pull/4114#discussion_r1145917303
##########
ql/src/java/org/apache/hadoop/hive/ql/io/AcidUtils.java:
##########
@@ -1538,32 +1538,36 @@ private static HdfsDirSnapshot addToSnapshot(Map<Path,
HdfsDirSnapshot> dirToSna
public static Map<Path, HdfsDirSnapshot> getHdfsDirSnapshots(final
FileSystem fs, final Path path)
throws IOException {
Map<Path, HdfsDirSnapshot> dirToSnapshots = new HashMap<>();
- RemoteIterator<LocatedFileStatus> itr = FileUtils.listFiles(fs, path,
true, acidHiddenFileFilter);
- while (itr.hasNext()) {
- FileStatus fStatus = itr.next();
- Path fPath = fStatus.getPath();
- if (fStatus.isDirectory() && acidTempDirFilter.accept(fPath)) {
- addToSnapshot(dirToSnapshots, fPath);
- } else {
- Path parentDirPath = fPath.getParent();
- if (acidTempDirFilter.accept(parentDirPath)) {
- while (isChildOfDelta(parentDirPath, path)) {
- // Some cases there are other directory layers between the delta
and the datafiles
- // (export-import mm table, insert with union all to mm table,
skewed tables).
- // But it does not matter for the AcidState, we just need the
deltas and the data files
- // So build the snapshot with the files inside the delta directory
- parentDirPath = parentDirPath.getParent();
- }
- HdfsDirSnapshot dirSnapshot = addToSnapshot(dirToSnapshots,
parentDirPath);
- // We're not filtering out the metadata file and acid format file,
- // as they represent parts of a valid snapshot
- // We're not using the cached values downstream, but we can
potentially optimize more in a follow-up task
- if
(fStatus.getPath().toString().contains(MetaDataFile.METADATA_FILE)) {
- dirSnapshot.addMetadataFile(fStatus);
- } else if
(fStatus.getPath().toString().contains(OrcAcidVersion.ACID_FORMAT)) {
- dirSnapshot.addOrcAcidFormatFile(fStatus);
- } else {
- dirSnapshot.addFile(fStatus);
+ Deque<RemoteIterator<LocatedFileStatus>> stack = new ArrayDeque<>();
Review Comment:
👍
@mdayakar, could we document the side effects of using `listStatusIterator`
& `listFiles` methods (add a javadoc with the link to
[HADOOP-18662](https://issues.apache.org/jira/browse/HADOOP-18662))
Issue Time Tracking
-------------------
Worklog Id: (was: 852448)
Time Spent: 2h 40m (was: 2.5h)
> Cleaner fails with FileNotFoundException
> ----------------------------------------
>
> Key: HIVE-27135
> URL: https://issues.apache.org/jira/browse/HIVE-27135
> Project: Hive
> Issue Type: Bug
> Reporter: Dayakar M
> Assignee: Dayakar M
> Priority: Major
> Labels: pull-request-available
> Time Spent: 2h 40m
> Remaining Estimate: 0h
>
> The compaction fails when the Cleaner tried to remove a missing directory
> from HDFS.
> {code:java}
> 2023-03-06 07:45:48,331 ERROR
> org.apache.hadoop.hive.ql.txn.compactor.Cleaner:
> [Cleaner-executor-thread-12]: Caught exception when cleaning, unable to
> complete cleaning of
> id:39762523,dbname:test,tableName:test_table,partName:null,state:,type:MINOR,enqueueTime:0,start:0,properties:null,runAs:hive,tooManyAborts:false,hasOldAbort:false,highestWriteId:989,errorMessage:null,workerId:
> null,initiatorId: null java.io.FileNotFoundException: File
> hdfs:/cluster/warehouse/tablespace/managed/hive/test.db/test_table/.hive-staging_hive_2023-03-06_07-45-23_120_4659605113266849995-73550
> does not exist.
> at
> org.apache.hadoop.hdfs.DistributedFileSystem$DirListingIterator.<init>(DistributedFileSystem.java:1275)
> at
> org.apache.hadoop.hdfs.DistributedFileSystem$DirListingIterator.<init>(DistributedFileSystem.java:1249)
> at
> org.apache.hadoop.hdfs.DistributedFileSystem$25.doCall(DistributedFileSystem.java:1194)
> at
> org.apache.hadoop.hdfs.DistributedFileSystem$25.doCall(DistributedFileSystem.java:1190)
> at
> org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81)
> at
> org.apache.hadoop.hdfs.DistributedFileSystem.listLocatedStatus(DistributedFileSystem.java:1208)
> at org.apache.hadoop.fs.FileSystem.listLocatedStatus(FileSystem.java:2144)
> at org.apache.hadoop.fs.FileSystem$5.handleFileStat(FileSystem.java:2332)
> at org.apache.hadoop.fs.FileSystem$5.hasNext(FileSystem.java:2309)
> at
> org.apache.hadoop.util.functional.RemoteIterators$WrappingRemoteIterator.sourceHasNext(RemoteIterators.java:432)
> at
> org.apache.hadoop.util.functional.RemoteIterators$FilteringRemoteIterator.fetch(RemoteIterators.java:581)
> at
> org.apache.hadoop.util.functional.RemoteIterators$FilteringRemoteIterator.hasNext(RemoteIterators.java:602)
> at
> org.apache.hadoop.hive.ql.io.AcidUtils.getHdfsDirSnapshots(AcidUtils.java:1435)
> at
> org.apache.hadoop.hive.ql.txn.compactor.Cleaner.removeFiles(Cleaner.java:287)
> at org.apache.hadoop.hive.ql.txn.compactor.Cleaner.clean(Cleaner.java:214)
> at
> org.apache.hadoop.hive.ql.txn.compactor.Cleaner.lambda$run$0(Cleaner.java:114)
> at
> org.apache.hadoop.hive.ql.txn.compactor.CompactorUtil$ThrowingRunnable.lambda$unchecked$0(CompactorUtil.java:54)
> at
> java.util.concurrent.CompletableFuture$AsyncRun.run(CompletableFuture.java:1640)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> at java.lang.Thread.run(Thread.java:750){code}
> h4.
> This issue got fixed as a part of HIVE-26481 but here its not fixed
> completely.
> [Here|https://github.com/apache/hive/blob/master/ql/src/java/org/apache/hadoop/hive/ql/io/AcidUtils.java#L1541]
> FileUtils.listFiles() API which returns a RemoteIterator<LocatedFileStatus>.
> So while iterating over, it checks if it is a directory and recursive listing
> then it will try to list files from that directory but if that directory is
> removed by other thread/task then it throws FileNotFoundException. Here the
> directory which got removed is the .staging directory which needs to be
> excluded through by using passed filter.
>
> So here we can use
> _*org.apache.hadoop.hive.common.FileUtils#listStatusRecursively()*_
> [API|https://github.com/apache/hive/blob/master/common/src/java/org/apache/hadoop/hive/common/FileUtils.java#L372]
> which will apply the filter before listing the files from that directory
> which will avoid FileNotFoundException.
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