Chris Nauroth created HDFS-10312:
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Summary: Large block reports may fail to decode at NameNode due to
64 MB protobuf maximum length restriction.
Key: HDFS-10312
URL: https://issues.apache.org/jira/browse/HDFS-10312
Project: Hadoop HDFS
Issue Type: Bug
Components: namenode
Reporter: Chris Nauroth
Assignee: Chris Nauroth
Our RPC server caps the maximum size of incoming messages at 64 MB by default.
For exceptional circumstances, this can be uptuned using
{{ipc.maximum.data.length}}. However, for block reports, there is still an
internal maximum length restriction of 64 MB enforced by protobuf. (Sample
stack trace to follow in comments.) This issue proposes to apply the same
override to our block list decoding, so that large block reports can proceed.
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