[HDDS-2152] Ozone client fails with OOM while writing a large (~300MB) key.

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.0.0
• Component/s: Ozone Client
• Labels: TriagePending
• Target Version/s: 1.0.0
• Assignee: Shashikant Banerjee
• Reporter: Aravindan Vijayan
• Created: 19/Sep/19 05:12
• Updated: 05/Jun/20 09:37
• Resolved: 05/Jun/20 09:37

Description

dd if=/dev/zero of=testfile bs=1024 count=307200
ozone sh key put /vol1/bucket1/key testfile

Exception in thread "main" java.lang.OutOfMemoryError: Java heap space at java.nio.HeapByteBuffer.<init>(HeapByteBuffer.java:57) at java.nio.ByteBuffer.allocate(ByteBuffer.java:335) at org.apache.hadoop.hdds.scm.storage.BufferPool.allocateBufferIfNeeded(BufferPool.java:66) at org.apache.hadoop.hdds.scm.storage.BlockOutputStream.write(BlockOutputStream.java:234) at org.apache.hadoop.ozone.client.io.BlockOutputStreamEntry.write(BlockOutputStreamEntry.java:129) at org.apache.hadoop.ozone.client.io.KeyOutputStream.handleWrite(KeyOutputStream.java:211) at org.apache.hadoop.ozone.client.io.KeyOutputStream.write(KeyOutputStream.java:193) at org.apache.hadoop.ozone.client.io.OzoneOutputStream.write(OzoneOutputStream.java:49) at org.apache.hadoop.io.IOUtils.copyBytes(IOUtils.java:96) at org.apache.hadoop.ozone.web.ozShell.keys.PutKeyHandler.call(PutKeyHandler.java:117) at org.apache.hadoop.ozone.web.ozShell.keys.PutKeyHandler.call(PutKeyHandler.java:55) at picocli.CommandLine.execute(CommandLine.java:1173) at picocli.CommandLine.access$800(CommandLine.java:141)

Issue Links

• incorporates: HDDS-2169 Avoid buffer copies while submitting client requests in Ratis
• Is contained by: HDDS-2169 Avoid buffer copies while submitting client requests in Ratis