Handle concatenated gzip members in astreamer decompressor
With WAL streaming, pg_basebackup -Ft -z writes pg_wal.tar.gz as a
series of gzip members. The decompressor did not reset the inflate
state when one ended, so inflate consumed nothing more and the loop
never finished. This caused pg_waldump to hang on such backups and
as a consequence pg_verifybackup (which use pg_waldump) would hang.
A test is added to pg_verifybackup for checking a gzip-compressed
tar backup, which in turn will verify that pg_waldump works.
Author: Shihao Zhong <zhong950419@gmail.com>
Reviewed-by: Daniel Gustafsson <daniel@yesql.se>
Reviewed-by: Chao Li <li.evan.chao@gmail.com>
Reviewed-by: Andrew Dunstan <andrew@dunslane.net>
Discussion: https://postgr.es/m/CAGRkXqTcyuog_MzKqQm+am2xMefLFJTSKaRevnfypDWirCFvdA@mail.gmail.com
Backpatch-through: 19
Branch
------
REL_19_STABLE
Details
-------
https://git.postgresql.org/pg/commitdiff/39c2969eb0e504d20ab9fd418775d36f1ff3045b
Modified Files
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src/bin/pg_verifybackup/t/007_wal.pl | 22 ++++++++++++++++++++++
src/fe_utils/astreamer_gzip.c | 8 ++++++++
2 files changed, 30 insertions(+)
