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Lag tracking for logical replication

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Lag tracking is called for each commit, but we introduce
a pacing delay to ensure we don't swamp the lag tracker.

Author: Petr Jelinek, with minor pacing delay code from me
This commit is contained in:
Simon Riggs
2017-05-12 10:50:56 +01:00
parent efa2c18f4e
commit 024711bb54
7 changed files with 79 additions and 23 deletions
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2
src/backend/replication/pgoutput/pgoutput.c
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@ -244,6 +244,8 @@ static void
pgoutput_commit_txn(LogicalDecodingContext *ctx, ReorderBufferTXN *txn,
XLogRecPtr commit_lsn)
{
OutputPluginUpdateProgress(ctx);
OutputPluginPrepareWrite(ctx, true);
logicalrep_write_commit(ctx->out, txn, commit_lsn);
OutputPluginWrite(ctx, true);