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| author | David Hows <howsdav@gmail.com> | 2017-06-07 16:39:14 +1000 |
|---|---|---|
| committer | Michael Cahill <michael.cahill@mongodb.com> | 2017-06-07 16:39:14 +1000 |
| commit | 683b5d097b955d24903a2b527ad085a1488e3d3f (patch) | |
| tree | cac27c24774f422391e76413e78bcf3c127a1cf8 | |
| parent | ad515323be891ce52216f410fb1d2d8a45cc3cbe (diff) | |
| download | mongo-683b5d097b955d24903a2b527ad085a1488e3d3f.tar.gz | |
WT-3332 Add per-connection stats for update transaction conflicts (#3448)
| -rw-r--r-- | dist/stat_data.py | 1 | ||||
| -rw-r--r-- | src/include/stat.h | 1 | ||||
| -rw-r--r-- | src/include/txn.i | 2 | ||||
| -rw-r--r-- | src/include/wiredtiger.in | 2 | ||||
| -rw-r--r-- | src/support/stat.c | 3 |
5 files changed, 9 insertions, 0 deletions
diff --git a/dist/stat_data.py b/dist/stat_data.py index acc156b947e..0850853fa3b 100644 --- a/dist/stat_data.py +++ b/dist/stat_data.py @@ -436,6 +436,7 @@ connection_stats = [ TxnStat('txn_snapshots_created', 'number of named snapshots created'), TxnStat('txn_snapshots_dropped', 'number of named snapshots dropped'), TxnStat('txn_sync', 'transaction sync calls'), + TxnStat('txn_update_conflict', 'update conflicts'), ########################################## # Yield statistics diff --git a/src/include/stat.h b/src/include/stat.h index 7c2529f1746..cbd2bb9af5e 100644 --- a/src/include/stat.h +++ b/src/include/stat.h @@ -513,6 +513,7 @@ struct __wt_connection_stats { int64_t txn_sync; int64_t txn_commit; int64_t txn_rollback; + int64_t txn_update_conflict; }; /* diff --git a/src/include/txn.i b/src/include/txn.i index f7321af5b12..f4f571cb67e 100644 --- a/src/include/txn.i +++ b/src/include/txn.i @@ -424,6 +424,8 @@ __wt_txn_update_check(WT_SESSION_IMPL *session, WT_UPDATE *upd) if (txn->isolation == WT_ISO_SNAPSHOT) while (upd != NULL && !__wt_txn_visible(session, upd->txnid)) { if (upd->txnid != WT_TXN_ABORTED) { + WT_STAT_CONN_INCR( + session, txn_update_conflict); WT_STAT_DATA_INCR( session, txn_update_conflict); return (WT_ROLLBACK); diff --git a/src/include/wiredtiger.in b/src/include/wiredtiger.in index 2bbe812d7f7..03ce35313c5 100644 --- a/src/include/wiredtiger.in +++ b/src/include/wiredtiger.in @@ -4986,6 +4986,8 @@ extern int wiredtiger_extension_terminate(WT_CONNECTION *connection); #define WT_STAT_CONN_TXN_COMMIT 1254 /*! transaction: transactions rolled back */ #define WT_STAT_CONN_TXN_ROLLBACK 1255 +/*! transaction: update conflicts */ +#define WT_STAT_CONN_TXN_UPDATE_CONFLICT 1256 /*! * @} diff --git a/src/support/stat.c b/src/support/stat.c index 061615c0931..dcad5351fe8 100644 --- a/src/support/stat.c +++ b/src/support/stat.c @@ -888,6 +888,7 @@ static const char * const __stats_connection_desc[] = { "transaction: transaction sync calls", "transaction: transactions committed", "transaction: transactions rolled back", + "transaction: update conflicts", }; int @@ -1186,6 +1187,7 @@ __wt_stat_connection_clear_single(WT_CONNECTION_STATS *stats) stats->txn_sync = 0; stats->txn_commit = 0; stats->txn_rollback = 0; + stats->txn_update_conflict = 0; } void @@ -1563,6 +1565,7 @@ __wt_stat_connection_aggregate( to->txn_sync += WT_STAT_READ(from, txn_sync); to->txn_commit += WT_STAT_READ(from, txn_commit); to->txn_rollback += WT_STAT_READ(from, txn_rollback); + to->txn_update_conflict += WT_STAT_READ(from, txn_update_conflict); } static const char * const __stats_join_desc[] = { |