Juraci Paixão Kröhling created THRIFT-5322:
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Summary: Go compact_protocol allocating unreasonable buffer size
Key: THRIFT-5322
URL: https://issues.apache.org/jira/browse/THRIFT-5322
Project: Thrift
Issue Type: Bug
Components: Go - Library
Affects Versions: 0.13.0
Reporter: Juraci Paixão Kröhling
I don't yet know all the pieces to this puzzle, and it's quite possible that
the problem is on our side, but we use the Thrift Go library in the Jaeger
Agent and we are seeing a case where the memory consumption for a payload of 4k
bytes to result in a buffer allocation in the compact_protocol.go with
unreasonable sizes. I found buffers of 1.4GiB while debugging the issue.
This is the code that we are seeing this memory usage:
[https://github.com/apache/thrift/blob/b75e88a33d67ae05ef9b5fa001d2a63a2effe377/lib/go/thrift/compact_protocol.go#L556-L577]
Here's more information about this, including a reproducer and initial
diagnostics:
[https://github.com/jaegertracing/jaeger/issues/2638#issuecomment-741848201]
As mentioned above, I'm still getting all the pieces together, but perhaps
you've seen this before or know what might be going on.
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