Why doesn't `vacuum full` release space immediately?
On Postgres 9.5 I had a table that grew to 30GB, but it was ultimately mostly dead rows. After cleaning it up with a vacuum full, postgres reports that the table size is now around 500MB. However, I see no space being released to the OS.
I found PostgreSQL - VACUUM FULL does not free space back to the OS which suggests the WAL files might be the culprit, but these are present on a different disk so it shouldn't affect my actual data disk at all.
I have confirmed that there are no other long running transactions or autovacuum's that might be locking the table.
What can I look at to figure out why my space isn't being released?
postgresql-9.5
asked 9 mins ago
RageshRagesh
1112
add a comment |
On Postgres 9.5 I had a table that grew to 30GB, but it was ultimately mostly dead rows. After cleaning it up with a vacuum full, postgres reports that the table size is now around 500MB. However, I see no space being released to the OS.
I found PostgreSQL - VACUUM FULL does not free space back to the OS which suggests the WAL files might be the culprit, but these are present on a different disk so it shouldn't affect my actual data disk at all.
I have confirmed that there are no other long running transactions or autovacuum's that might be locking the table.
What can I look at to figure out why my space isn't being released?
postgresql-9.5
asked 9 mins ago
RageshRagesh
1112
add a comment |
On Postgres 9.5 I had a table that grew to 30GB, but it was ultimately mostly dead rows. After cleaning it up with a vacuum full, postgres reports that the table size is now around 500MB. However, I see no space being released to the OS.
I found PostgreSQL - VACUUM FULL does not free space back to the OS which suggests the WAL files might be the culprit, but these are present on a different disk so it shouldn't affect my actual data disk at all.
I have confirmed that there are no other long running transactions or autovacuum's that might be locking the table.
What can I look at to figure out why my space isn't being released?
postgresql-9.5
asked 9 mins ago
RageshRagesh
1112
On Postgres 9.5 I had a table that grew to 30GB, but it was ultimately mostly dead rows. After cleaning it up with a vacuum full, postgres reports that the table size is now around 500MB. However, I see no space being released to the OS.
I found PostgreSQL - VACUUM FULL does not free space back to the OS which suggests the WAL files might be the culprit, but these are present on a different disk so it shouldn't affect my actual data disk at all.
I have confirmed that there are no other long running transactions or autovacuum's that might be locking the table.
What can I look at to figure out why my space isn't being released?
postgresql-9.5
postgresql-9.5
asked 9 mins ago
RageshRagesh
1112
asked 9 mins ago
RageshRagesh
1112
asked 9 mins ago
RageshRagesh
1112
asked 9 mins ago
RageshRagesh
1112
asked 9 mins ago
RageshRagesh
1112
1112
add a comment |
add a comment |
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