Ivan Rakov created IGNITE-8572:
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Summary: StandaloneWalRecordsIterator may throw NPE if compressed
WAL segment is empty
Key: IGNITE-8572
URL: https://issues.apache.org/jira/browse/IGNITE-8572
Project: Ignite
Issue Type: New Feature
Components: persistence
Reporter: Ivan Rakov
Assignee: Ivan Rakov
Fix For: 2.6
In case ZIP archive with WAL segment doesn't contain any ZIP entries, attempt
to iterate through it with standalone WAL iterator will throw NPE:
{noformat}
Caused by: java.lang.NullPointerException
at
org.apache.ignite.internal.processors.cache.persistence.file.UnzipFileIO.<init>(UnzipFileIO.java:53)
at
org.apache.ignite.internal.processors.cache.persistence.wal.AbstractWalRecordsIterator.initReadHandle(AbstractWalRecordsIterator.java:265)
at
org.apache.ignite.internal.processors.cache.persistence.wal.reader.StandaloneWalRecordsIterator.advanceSegment(StandaloneWalRecordsIterator.java:262)
at
org.apache.ignite.internal.processors.cache.persistence.wal.AbstractWalRecordsIterator.advance(AbstractWalRecordsIterator.java:155)
at
org.apache.ignite.internal.processors.cache.persistence.wal.reader.StandaloneWalRecordsIterator.<init>(StandaloneWalRecordsIterator.java:111)
at
org.apache.ignite.internal.processors.cache.persistence.wal.reader.IgniteWalIteratorFactory.iteratorArchiveDirectory(IgniteWalIteratorFactory.java:156)
... 6 more
{noformat}
We should throw excpetion with descriptive error message instead.
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