Kevin Geiszler created HBASE-29825:
--------------------------------------
Summary: Incremental backup is failing due to incorrect timezone
Key: HBASE-29825
URL: https://issues.apache.org/jira/browse/HBASE-29825
Project: HBase
Issue Type: Bug
Components: backup&restore
Reporter: Kevin Geiszler
Running an incremental backup at a certain time of the day will result in an
exception (see below). I noticed this error when running
IntegrationTestContinuousBackupRestore on my machine using IntelliJ. The
interesting part is I did not see this issue during the day until at or after 4
PM Pacific Time, which also happens to be 00:00:00 UTC. The UTC timezone is
not being set for the `dateFormat` variable in [BackupUtils.
getValidWalDirs()|[http://example.com|https://github.com/apache/hbase/blob/HBASE-28957/hbase-backup/src/main/java/org/apache/hadoop/hbase/backup/util/BackupUtils.java#L998]].
{code:java}
2026-01-08T21:26:21,300 ERROR [Thread-223 {}] impl.TableBackupClient(232):
Unexpected exception in incremental-backup: incremental copy
backup_1767936354830Can not convert from directory (check Hadoop, HBase and
WALPlayer M/R job logs)
java.io.IOException: Can not convert from directory (check Hadoop, HBase and
WALPlayer M/R job logs)
at
org.apache.hadoop.hbase.backup.impl.IncrementalTableBackupClient.walToHFiles(IncrementalTableBackupClient.java:525)
~[classes/:?]
at
org.apache.hadoop.hbase.backup.impl.IncrementalTableBackupClient.convertWALsToHFiles(IncrementalTableBackupClient.java:461)
~[classes/:?]
at
org.apache.hadoop.hbase.backup.impl.IncrementalTableBackupClient.execute(IncrementalTableBackupClient.java:344)
~[classes/:?]
at
org.apache.hadoop.hbase.backup.impl.BackupAdminImpl.backupTables(BackupAdminImpl.java:681)
~[classes/:?]
at
org.apache.hadoop.hbase.backup.IntegrationTestBackupRestoreBase.backup(IntegrationTestBackupRestoreBase.java:384)
~[test-classes/:?]
at
org.apache.hadoop.hbase.backup.IntegrationTestBackupRestoreBase.runTestSingle(IntegrationTestBackupRestoreBase.java:299)
~[test-classes/:?]
at
org.apache.hadoop.hbase.backup.IntegrationTestBackupRestoreBase$BackupAndRestoreThread.run(IntegrationTestBackupRestoreBase.java:136)
~[test-classes/:?]
at java.lang.Thread.run(Thread.java:840) ~[?:?]
Caused by: java.lang.IllegalArgumentException: Can not create a Path from an
empty string
at org.apache.hadoop.fs.Path.checkPathArg(Path.java:173)
~[hadoop-common-3.4.1.jar:?]
at org.apache.hadoop.fs.Path.<init>(Path.java:185) ~[hadoop-common-3.4.1.jar:?]
at org.apache.hadoop.util.StringUtils.stringToPath(StringUtils.java:279)
~[hadoop-common-3.4.1.jar:?]
at
org.apache.hadoop.hbase.mapreduce.WALInputFormat.getInputPaths(WALInputFormat.java:348)
~[classes/:?]
at
org.apache.hadoop.hbase.mapreduce.WALInputFormat.getSplits(WALInputFormat.java:311)
~[classes/:?]
at
org.apache.hadoop.hbase.mapreduce.WALInputFormat.getSplits(WALInputFormat.java:301)
~[classes/:?]
at
org.apache.hadoop.mapreduce.JobSubmitter.writeNewSplits(JobSubmitter.java:311)
~[hadoop-mapreduce-client-core-3.4.1.jar:?]
at org.apache.hadoop.mapreduce.JobSubmitter.writeSplits(JobSubmitter.java:328)
~[hadoop-mapreduce-client-core-3.4.1.jar:?]
at
org.apache.hadoop.mapreduce.JobSubmitter.submitJobInternal(JobSubmitter.java:201)
~[hadoop-mapreduce-client-core-3.4.1.jar:?]
at org.apache.hadoop.mapreduce.Job$11.run(Job.java:1677)
~[hadoop-mapreduce-client-core-3.4.1.jar:?]
at org.apache.hadoop.mapreduce.Job$11.run(Job.java:1674)
~[hadoop-mapreduce-client-core-3.4.1.jar:?]
at java.security.AccessController.doPrivileged(AccessController.java:712)
~[?:?]
at javax.security.auth.Subject.doAs(Subject.java:439) ~[?:?]
at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1953)
~[hadoop-common-3.4.1.jar:?]
at org.apache.hadoop.mapreduce.Job.submit(Job.java:1674)
~[hadoop-mapreduce-client-core-3.4.1.jar:?]
at org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:1695)
~[hadoop-mapreduce-client-core-3.4.1.jar:?]
at org.apache.hadoop.hbase.mapreduce.WALPlayer.run(WALPlayer.java:445)
~[classes/:?]
at
org.apache.hadoop.hbase.backup.impl.IncrementalTableBackupClient.walToHFiles(IncrementalTableBackupClient.java:516)
~[classes/:?]
... 7 more {code}
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