On Mon, Nov 15, 2021 at 11:25 AM Dmitry Dolgov <9erthali...@gmail.com> wrote:
> Walsender tries to send a backup manifest, but crashes on the trottling sink:
>
>     #2  0x0000560857b551af in ExceptionalCondition 
> (conditionName=0x560857d15d27 "sink->bbs_next != NULL", 
> errorType=0x560857d15c23 "FailedAssertion", fileName=0x560857d15d15 
> "basebackup_sink.c", lineNumber=91) at assert.c:69
>     #3  0x0000560857918a94 in bbsink_forward_manifest_contents 
> (sink=0x5608593f73f8, len=32768) at basebackup_sink.c:91
>     #4  0x0000560857918d68 in bbsink_throttle_manifest_contents 
> (sink=0x5608593f7450, len=32768) at basebackup_throttle.c:125
>     #5  0x00005608579186d0 in bbsink_manifest_contents (sink=0x5608593f7450, 
> len=32768) at ../../../src/include/replication/basebackup_sink.h:240
>     #6  0x0000560857918b1b in bbsink_forward_manifest_contents 
> (sink=0x5608593f74e8, len=32768) at basebackup_sink.c:94
>     #7  0x0000560857911edc in bbsink_manifest_contents (sink=0x5608593f74e8, 
> len=32768) at ../../../src/include/replication/basebackup_sink.h:240
>     #8  0x00005608579129f6 in SendBackupManifest (manifest=0x7ffdaea9d120, 
> sink=0x5608593f74e8) at backup_manifest.c:373
>
> Looking at the similar bbsink_throttle_archive_contents it's not clear
> why comments for both functions (archive and manifest throttling) say
> "pass archive contents to next sink", but only 
> bbsink_throttle_manifest_contents
> does pass bbs_next into the bbsink_forward_manifest_contents. Is it
> supposed to be like that? Passing the same sink object instead the next
> one into bbsink_forward_manifest_contents seems to solve the problem in
> this case.

Yeah, that's what it should be doing. I'll commit a fix, thanks for
the report and diagnosis.

-- 
Robert Haas
EDB: http://www.enterprisedb.com


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