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| author | Richard van der Hoff <richard@matrix.org> | 2018-06-21 06:15:03 +0100 |
|---|---|---|
| committer | Richard van der Hoff <richard@matrix.org> | 2018-06-21 06:15:03 +0100 |
| commit | b088aafcae71fa61433f92ce0b139802a9cbd304 (patch) | |
| tree | c3f8063a1a10ce58f78c0f457bd65e394838ffe5 /synapse/util/logcontext.py | |
| parent | Merge pull request #3416 from matrix-org/rav/restart_indicator (diff) | |
| download | synapse-b088aafcae71fa61433f92ce0b139802a9cbd304.tar.xz | |
Log number of events fetched from DB
When we finish processing a request, log the number of events we fetched from the database to handle it. [I'm trying to figure out which requests are responsible for large amounts of event cache churn. It may turn out to be more helpful to add counts to the prometheus per-request/block metrics, but that is an extension to this code anyway.]
Diffstat (limited to '')
| -rw-r--r-- | synapse/util/logcontext.py | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/synapse/util/logcontext.py b/synapse/util/logcontext.py index a58c723403..2bfd4bee96 100644 --- a/synapse/util/logcontext.py +++ b/synapse/util/logcontext.py @@ -60,6 +60,7 @@ class LoggingContext(object): __slots__ = [ "previous_context", "name", "ru_stime", "ru_utime", "db_txn_count", "db_txn_duration_sec", "db_sched_duration_sec", + "evt_db_fetch_count", "usage_start", "main_thread", "alive", "request", "tag", @@ -109,6 +110,9 @@ class LoggingContext(object): # sec spent waiting for db txns to be scheduled self.db_sched_duration_sec = 0 + # number of events this thread has fetched from the db + self.evt_db_fetch_count = 0 + # If alive has the thread resource usage when the logcontext last # became active. self.usage_start = None |