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DAOS-16721 dtx: handle potential DTX ID reusing trouble - b26 #15409

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merged 1 commit into from
Nov 5, 2024
Merged

DAOS-16721 dtx: handle potential DTX ID reusing trouble - b26 #15409

merged 1 commit into from
Nov 5, 2024

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Nasf-Fan
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@Nasf-Fan Nasf-Fan commented Oct 28, 2024 •
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The patch contains the following improvements:

  1. When VOS level logic returns -DER_TX_RESATRT, the object level RPC handler should set 'RESEND' flag then restart the transaction with newer epoch. Because dtx_abort() logic cannot guarantee all former prepared DTX entries (on all related participants) can be aborted, especially if the former one failed for some network trouble, that may cause restarted transaction hit -DER_TX_ID_REUSED unexpectedly.

  2. Compare the epoch for DTX entries with the same transaction ID for distinguishing potential reused TX ID more accurately.

  3. Add DTX entry into DTX CoS cache if cannot commit it synchronously. Then subsequent batched commit logic can handle it.

  4. If server complains suspected TX ID reusing, then reports -EIO to related application instead of assertion on client.

  5. Control DTX related warning message frequency to avoid log flood.

  6. Collect more information when generate some error/warning message.

Allow-unstable-test: true

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Ticket title is 'Aurora: mdtest assertion on punch with 530 servers, 2048 * 104 clients'
Status is 'In Progress'
Labels: 'pre_acceptance_issues'
Job should run at elevated priority (1)
https://daosio.atlassian.net/browse/DAOS-16721

@github-actions github-actions bot added the priority Ticket has high priority (automatically managed) label Oct 28, 2024
@Nasf-Fan Nasf-Fan marked this pull request as ready for review October 28, 2024 14:56
@Nasf-Fan Nasf-Fan requested review from a team as code owners October 28, 2024 14:56
@Nasf-Fan Nasf-Fan requested review from liuxuezhao and gnailzenh and removed request for a team and liuxuezhao October 28, 2024 14:57
liuxuezhao
liuxuezhao previously approved these changes Oct 29, 2024
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mchaarawi
mchaarawi reviewed Oct 30, 2024
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src/object/cli_obj.c Outdated
"Miss 'RESEND' flag (%x) when resend the RPC for task %p: %u\n",
obj_auxi->flags, task, obj_auxi->retry_cnt);
if (task->dt_result == -DER_TX_ID_REUSED && obj_auxi->retry_cnt != 0) {
D_ERROR("Be complained as TX ID reused for unknown reason, "
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please remove the first part "Be complained as", as that is not a valid english phrase.

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Test stage Functional Hardware Medium completed with status FAILURE. https://build.hpdd.intel.com/job/daos-stack/job/daos/job/PR-15409/4/display/redirect

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Test stage Functional Hardware Medium Verbs Provider completed with status FAILURE. https://build.hpdd.intel.com/job/daos-stack/job/daos/job/PR-15409/4/display/redirect

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Test stage Functional Hardware Large completed with status FAILURE. https://build.hpdd.intel.com/job/daos-stack/job/daos/job/PR-15409/4/display/redirect

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Test stage Functional Hardware Medium Verbs Provider completed with status FAILURE. https://build.hpdd.intel.com/job/daos-stack/job/daos/job/PR-15409/6/display/redirect

@Nasf-Fan
DAOS-16721 dtx: handle potential DTX ID reusing trouble - b26
c4c195d 
The patch contains the following improvements:

1. When VOS level logic returns -DER_TX_RESATRT, the object level RPC
   handler should set 'RESEND' flag then restart the transaction with
   newer epoch. Because dtx_abort() logic cannot guarantee all former
   prepared DTX entries (on all related participants) can be aborted,
   especially if the former one failed for some network trouble, that
   may cause restarted transaction hit -DER_TX_ID_REUSED unexpectedly.

2. Compare the epoch for DTX entries with the same transaction ID for
   distinguishing potential reused TX ID more accurately.

3. Add DTX entry into DTX CoS cache if cannot commit it synchronously.
   Then subsequent batched commit logic can handle it.

4. If server complains suspected TX ID reusing, then reports -EIO to
   related application instead of assertion on client.

5. Control DTX related warning message frequency to avoid log flood.

6. Collect more information when generate some error/warning message.

Allow-unstable-test: true

Signed-off-by: Fan Yong <[email protected]>
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Test stage Functional Hardware Medium Verbs Provider completed with status FAILURE. https://build.hpdd.intel.com/job/daos-stack/job/daos/job/PR-15409/8/display/redirect

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Test stage Functional Hardware Medium completed with status FAILURE. https://build.hpdd.intel.com/job/daos-stack/job/daos/job/PR-15409/9/display/redirect

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Test stage Functional Hardware Medium Verbs Provider completed with status FAILURE. https://build.hpdd.intel.com/job/daos-stack/job/daos/job/PR-15409/9/display/redirect

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Test stage Functional Hardware Large completed with status FAILURE. https://build.hpdd.intel.com/job/daos-stack/job/daos/job/PR-15409/9/display/redirect

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Test stage Functional Hardware Medium Verbs Provider completed with status FAILURE. https://build.hpdd.intel.com/job/daos-stack/job/daos/job/PR-15409/10/display/redirect

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Test stage Functional Hardware Medium Verbs Provider completed with status FAILURE. https://build.hpdd.intel.com/job/daos-stack/job/daos/job/PR-15409/11/display/redirect

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Test stage Functional Hardware Medium completed with status FAILURE. https://build.hpdd.intel.com/job/daos-stack/job/daos/job/PR-15409/13/display/redirect

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Test stage Functional Hardware Large completed with status FAILURE. https://build.hpdd.intel.com/job/daos-stack/job/daos/job/PR-15409/13/display/redirect

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Test stage Functional Hardware Medium Verbs Provider completed with status FAILURE. https://build.hpdd.intel.com/job/daos-stack/job/daos/job/PR-15409/13/display/redirect

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phender commented Nov 4, 2024

The https://build.hpdd.intel.com/job/daos-stack/job/daos/job/PR-15409/13 build failed to run the Functional Hardware stages due to provisioning errors. I've manually kicked off https://build.hpdd.intel.com/job/daos-stack/job/daos/job/PR-15409/14/ to just run the Functional Hardware Medium, Medium Verbs Provider, and Large stages.

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Test stage Functional Hardware Medium Verbs Provider completed with status FAILURE. https://build.hpdd.intel.com/job/daos-stack/job/daos/job/PR-15409/14/display/redirect

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phender commented Nov 5, 2024

The https://build.hpdd.intel.com/job/daos-stack/job/daos/job/PR-15409/13 build failed to run the Functional Hardware stages due to provisioning errors. I've manually kicked off https://build.hpdd.intel.com/job/daos-stack/job/daos/job/PR-15409/14/ to just run the Functional Hardware Medium, Medium Verbs Provider, and Large stages.

Functional HW testing passed in https://build.hpdd.intel.com/job/daos-stack/job/daos/job/PR-15409/16/

tanabarr
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looks like mostly clean cherry pick, although it's not a familiar area of code LGTM

@phender phender merged commit f7d12a4 into release/2.6 Nov 5, 2024
53 of 54 checks passed
@phender phender deleted the Nasf-Fan/DAOS-16721_2_b26 branch November 5, 2024 22:49
@mjmac mjmac mentioned this pull request Nov 6, 2024
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@tanabarr tanabarr tanabarr approved these changes

@gnailzenh gnailzenh Awaiting requested review from gnailzenh

@liuxuezhao liuxuezhao Awaiting requested review from liuxuezhao

@mchaarawi mchaarawi Awaiting requested review from mchaarawi

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