DAOS-17446 common: Chunk dRPC messages larger than 1MB
In certain contexts it is possible to exceed the 1MB buffer size limitation for dRPC messages. This is rare, but it renders the payload impossible to read. This patch refactors dRPC to send and receive messages in <1MB chunks by adding a header.
With this change, the chunk header is always expected, so client libdaos and daos_agent must be at equivalent versions. This should already be the case with the daos-client RPM package.
- Implement chunking as the default behavior in both control and data plane dRPC implementations.
- Add low-level integration testing of the dRPC call/response infrastructure for both C and Go implementations, to test the send/recv functionality in each implementation separately from higher-level DAOS tests.
Features: control
Signed-off-by: Kris Jacque [email protected]
Steps for the author:
- [ ] Commit message follows the guidelines.
- [ ] Appropriate Features or Test-tag pragmas were used.
- [ ] Appropriate Functional Test Stages were run.
- [ ] At least two positive code reviews including at least one code owner from each category referenced in the PR.
- [ ] Testing is complete. If necessary, forced-landing label added and a reason added in a comment.
After all prior steps are complete:
- [ ] Gatekeeper requested (daos-gatekeeper added as a reviewer).
Currently based on #16350. When that lands I will have to rebase, so just seeking preliminary reviews at this point.
Test stage Unit Test on EL 8.8 completed with status FAILURE. https://jenkins-3.daos.hpc.amslabs.hpecorp.net//job/daos-stack/job/daos/view/change-requests/job/PR-16479/1/execution/node/664/log
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Took a look at the new code... Looks like a nice update. One thing that occurred to me as I was looking at the Go side of it is that it might be better to make a libdrpc and write Go bindings for it. That way we don't have two separate implementations in different languages that have to interoperate.
I know that's quite a shift in direction, and you've already written the guts of the Go side. Would kinda suck to throw that out, but might still be useful as a framework for bindings. If we're going to do that, though, now would be a good time to do it, IMO.
Test stage NLT on EL 8.8 completed with status FAILURE. https://jenkins-3.daos.hpc.amslabs.hpecorp.net//job/daos-stack/job/daos/view/change-requests/job/PR-16479/1/execution/node/892/log
Ticket title is 'Allow dRPC to receive messages of arbitrary size' Status is 'In Review' https://daosio.atlassian.net/browse/DAOS-17446
Test stage Unit Test on EL 8.8 completed with status FAILURE. https://jenkins-3.daos.hpc.amslabs.hpecorp.net//job/daos-stack/job/daos/view/change-requests/job/PR-16479/4/execution/node/847/log
Test stage NLT on EL 8.8 completed with status FAILURE. https://jenkins-3.daos.hpc.amslabs.hpecorp.net//job/daos-stack/job/daos/view/change-requests/job/PR-16479/4/execution/node/860/log
Test stage Unit Test with memcheck on EL 8.8 completed with status UNSTABLE. https://jenkins-3.daos.hpc.amslabs.hpecorp.net/job/daos-stack/job/daos//view/change-requests/job/PR-16479/4/testReport/
Test stage Unit Test on EL 8.8 completed with status FAILURE. https://jenkins-3.daos.hpc.amslabs.hpecorp.net//job/daos-stack/job/daos/view/change-requests/job/PR-16479/5/execution/node/904/log
Test stage Unit Test with memcheck on EL 8.8 completed with status UNSTABLE. https://jenkins-3.daos.hpc.amslabs.hpecorp.net/job/daos-stack/job/daos//view/change-requests/job/PR-16479/5/testReport/
Test stage Unit Test on EL 8.8 completed with status FAILURE. https://jenkins-3.daos.hpc.amslabs.hpecorp.net//job/daos-stack/job/daos/view/change-requests/job/PR-16479/6/execution/node/822/log
Test stage Unit Test with memcheck on EL 8.8 completed with status UNSTABLE. https://jenkins-3.daos.hpc.amslabs.hpecorp.net/job/daos-stack/job/daos//view/change-requests/job/PR-16479/6/testReport/
Test stage Unit Test with memcheck on EL 8.8 completed with status UNSTABLE. https://jenkins-3.daos.hpc.amslabs.hpecorp.net/job/daos-stack/job/daos//view/change-requests/job/PR-16479/7/testReport/
Test stage NLT on EL 8.8 completed with status UNSTABLE. https://jenkins-3.daos.hpc.amslabs.hpecorp.net/job/daos-stack/job/daos//view/change-requests/job/PR-16479/7/testReport/
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Test stage Build RPM on EL 8 completed with status FAILURE. https://jenkins-3.daos.hpc.amslabs.hpecorp.net//job/daos-stack/job/daos/view/change-requests/job/PR-16479/9/execution/node/384/log
Test stage Build RPM on Leap 15.5 completed with status FAILURE. https://jenkins-3.daos.hpc.amslabs.hpecorp.net//job/daos-stack/job/daos/view/change-requests/job/PR-16479/9/execution/node/377/log
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Test stage Functional on EL 8.8 completed with status FAILURE. https://jenkins-3.daos.hpc.amslabs.hpecorp.net//job/daos-stack/job/daos/view/change-requests/job/PR-16479/10/execution/node/1248/log
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Test stage Functional Hardware Medium Verbs Provider MD on SSD completed with status FAILURE. https://jenkins-3.daos.hpc.amslabs.hpecorp.net//job/daos-stack/job/daos/view/change-requests/job/PR-16479/11/execution/node/1598/log