Hi, attached is v4 of the patch series, with a couple of changes:
1) Fixes a bunch of bugs I discovered during stress testing. I'm not going to go into details, but the main fixes are related to properly updating progress from the worker, and not streaming when creating the logical replication slot. 2) Introduces columns into pg_stat_replication. The new columns track various kinds of statistics (number of xacts, bytes, ...) about spill-to-disk/streaming. This will be useful when tuning the GUC memory limit. 3) Two temporary bugfixes that make the patch series work. The first one (0008) makes sure is_known_subxact is set properly for all subtransactions, and there's a separate fix in the CF. So this will eventually go away. The second one (0009) fixes an issue that is specific to streaming. It does fix the issue, but I need a bit more time to think about it before merging it into 0005. This does pass extensive stress testing with a workload mixing DML, DDL, subtransactions, aborts, etc. under valgrind. I'm working on extending the test coverage, and introducing various error conditions (e.g. walsender/walreceiver timeouts, failures on both ends, etc.). regards -- Tomas Vondra http://www.2ndQuadrant.com PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
0001-Introduce-logical_work_mem-to-limit-ReorderBuffer-v4.patch.gz
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0002-Issue-XLOG_XACT_ASSIGNMENT-with-wal_level-logical-v4.patch.gz
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0003-Issue-individual-invalidations-with-wal_level-log-v4.patch.gz
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0004-Extend-the-output-plugin-API-with-stream-methods-v4.patch.gz
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0005-Implement-streaming-mode-in-ReorderBuffer-v4.patch.gz
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0006-Add-support-for-streaming-to-built-in-replication-v4.patch.gz
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0007-Track-statistics-for-streaming-spilling-v4.patch.gz
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0008-BUGFIX-make-sure-subxact-is-marked-as-is_known_as-v4.patch.gz
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0009-BUGFIX-set-final_lsn-for-subxacts-before-cleanup-v4.patch.gz
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