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Update replication statistics after every stream/spill.

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Currently, replication slot statistics are updated at prepare, commit, and
rollback. Now, if the transaction is interrupted the stats might not get
updated. Fixed this by updating replication statistics after every
stream/spill.

In passing update the docs to change the description of some of the slot
stats.

Author: Vignesh C, Sawada Masahiko
Reviewed-by: Amit Kapila
Discussion: https://postgr.es/m/20210319185247.ldebgpdaxsowiflw@alap3.anarazel.de
This commit is contained in:
Amit Kapila
2021-05-06 11:21:26 +05:30
parent 7f2e10baa2
commit 592f00f8de
4 changed files with 23 additions and 16 deletions
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6
src/backend/replication/logical/reorderbuffer.c
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@ -3559,6 +3559,9 @@ ReorderBufferSerializeTXN(ReorderBuffer *rb, ReorderBufferTXN *txn)
/* don't consider already serialized transactions */
rb->spillTxns += (rbtxn_is_serialized(txn) || rbtxn_is_serialized_clear(txn)) ? 0 : 1;
/* update the decoding stats */
UpdateDecodingStats((LogicalDecodingContext *) rb->private_data);
}
Assert(spilled == txn->nentries_mem);
@ -3928,6 +3931,9 @@ ReorderBufferStreamTXN(ReorderBuffer *rb, ReorderBufferTXN *txn)
/* Don't consider already streamed transaction. */
rb->streamTxns += (txn_is_streamed) ? 0 : 1;
/* update the decoding stats */
UpdateDecodingStats((LogicalDecodingContext *) rb->private_data);
Assert(dlist_is_empty(&txn->changes));
Assert(txn->nentries == 0);
Assert(txn->nentries_mem == 0);