Logical replication and wal segment retention

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От John Scalia
Тема Logical replication and wal segment retention
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Msg-id 695C083D-AFB5-431B-B022-ED442CE94794@gmail.com
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Ответы Re: Logical replication and wal segment retention
Re: Logical replication and wal segment retention
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Hello, folks,

Yesterday, I had a small file system fill up, due to some logical replication testing we had been performing. We had
beentesting IBM’s IIDR system and apparently it had built a logical replication slot on my server. When the test was
completed,nobody removed the slot, so WAL segments stopped being dropped. Now I can understand the difficulty
separatingwhat physical versus logical replication needs from the WAL segments, but as logical replication is database
specificnot cluster wide, this behavior was a little unexpected, since the WAL segments are cluster wide. Are WAL
segmentsgoing to pile up whenever something drops a logical replication connection? I’ve seen it, but it seems like
thiscould be a bad thing. 
-
Jay

Sent from my iPhone

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