[jira] [Created] (HDDS-7982) NPE in BlockInputStream due to null pipeline after refresh

["Attila Doroszlai (Jira)" <ji...@apache.org>]

Attila Doroszlai created HDDS-7982:
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             Summary: NPE in BlockInputStream due to null pipeline after refresh
                 Key: HDDS-7982
                 URL: https://issues.apache.org/jira/browse/HDDS-7982
             Project: Apache Ozone
          Issue Type: Bug
          Components: Ozone Client
    Affects Versions: 1.4.0
            Reporter: Attila Doroszlai
            Assignee: Attila Doroszlai


Steps to reproduce:

# Start cluster with 5 datanodes
# Create EC(3,2) key
# Stop a datanode that has data blocks (non-parity)
# Try to read the key before the datanode is marked as dead in SCM

Result:

{code}
java.lang.NullPointerException
	at org.apache.hadoop.hdds.scm.storage.BlockInputStream.getChunkInfos(BlockInputStream.java:220)
	at org.apache.hadoop.hdds.scm.storage.BlockInputStream.initialize(BlockInputStream.java:144)
	at org.apache.hadoop.hdds.scm.storage.BlockInputStream.readWithStrategy(BlockInputStream.java:281)
	at org.apache.hadoop.hdds.scm.storage.ExtendedInputStream.read(ExtendedInputStream.java:64)
	at org.apache.hadoop.hdds.scm.storage.ByteBufferReader.readFromBlock(ByteBufferReader.java:56)
	at org.apache.hadoop.ozone.client.io.ECBlockInputStream.readFromStream(ECBlockInputStream.java:414)
	at org.apache.hadoop.ozone.client.io.ECBlockInputStream.readWithStrategy(ECBlockInputStream.java:354)
	at org.apache.hadoop.hdds.scm.storage.ExtendedInputStream.read(ExtendedInputStream.java:64)
	at org.apache.hadoop.ozone.client.io.ECBlockInputStream.read(ECBlockInputStream.java:303)
	at org.apache.hadoop.ozone.client.io.ECBlockInputStreamProxy.read(ECBlockInputStreamProxy.java:163)
	at org.apache.hadoop.ozone.client.io.ECBlockInputStreamProxy.read(ECBlockInputStreamProxy.java:148)
	at org.apache.hadoop.hdds.scm.storage.ByteArrayReader.readFromBlock(ByteArrayReader.java:57)
	at org.apache.hadoop.hdds.scm.storage.MultipartInputStream.readWithStrategy(MultipartInputStream.java:96)
	at org.apache.hadoop.hdds.scm.storage.ExtendedInputStream.read(ExtendedInputStream.java:54)
	at org.apache.hadoop.ozone.client.io.OzoneInputStream.read(OzoneInputStream.java:56)
	at java.base/java.io.InputStream.read(InputStream.java:205)
	at org.apache.hadoop.io.IOUtils.copyBytes(IOUtils.java:94)
	at org.apache.hadoop.ozone.shell.keys.GetKeyHandler.execute(GetKeyHandler.java:88)
{code}



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