| From: | "kuroda(dot)hayato(at)fujitsu(dot)com" <kuroda(dot)hayato(at)fujitsu(dot)com> |
|---|---|
| To: | "'pgsql-hackers(at)lists(dot)postgresql(dot)org'" <pgsql-hackers(at)lists(dot)postgresql(dot)org> |
| Cc: | "osumi(dot)takamichi(at)fujitsu(dot)com" <osumi(dot)takamichi(at)fujitsu(dot)com> |
| Subject: | RE: test_decoding assertion failure for the loss of top-sub transaction relationship |
| Date: | 2022-09-02 01:08:04 |
| Message-ID: | TYAPR01MB5866A08C386164701F6EE1B9F57A9@TYAPR01MB5866.jpnprd01.prod.outlook.com |
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| Lists: | pgsql-hackers |
Hi Hackers,
> Therefore, this leads to the failure for the assert that can check
> the consistency that when one sub transaction modifies the catalog,
> its top transaction should be marked so as well.
>
> I feel we need to remember the relationship between top transaction and sub
> transaction
> in the serialized snapshot even before changing catalog at decoding
> RUNNING_XACT,
> so that we can keep track of the association after the restart. What do you think ?
PSA patch that fixes the failure.
This adds pairs of sub-top transactions to the SnapBuild, and it will be serialized and restored.
The pair will be checked when we mark the ReorderBufferTXN as RBTXN_HAS_CATALOG_CHANGES.
Thanks to off-list discussion with Osumi-san.
Best Regards,
Hayato Kuroda
FUJITSU LIMITED
| Attachment | Content-Type | Size |
|---|---|---|
| 0001-mark-RBTXN_HAS_CATALOG_CHANGES-to-the-top-transactio.patch | application/octet-stream | 17.0 KB |
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