diff options
| -rw-r--r-- | CHANGES.rst | 9 | ||||
| -rw-r--r-- | UPGRADE.rst | 9 | ||||
| -rw-r--r-- | docs/metrics-howto.rst | 11 | ||||
| -rw-r--r-- | synapse/http/server.py | 26 | ||||
| -rw-r--r-- | synapse/util/metrics.py | 25 |
5 files changed, 52 insertions, 28 deletions
diff --git a/CHANGES.rst b/CHANGES.rst index 5fbad54427..38372381ac 100644 --- a/CHANGES.rst +++ b/CHANGES.rst @@ -1,12 +1,3 @@ -Changes in synapse v0.28.0 (2018-xx-xx) -======================================= - -As previously advised, this release removes a number of redundant Prometheus -metrics. Administrators may need to update their dashboards and alerting rules -to use the updated metric names, if they have not already done so. See -`docs/metrics-howto.rst <docs/metrics-howto.rst#deprecated-metrics-removed-in-0-28-0>`_ -for more details. - Changes in synapse v0.27.2 (2018-03-26) ======================================= diff --git a/UPGRADE.rst b/UPGRADE.rst index 39a16b1c0c..f6bb1070b1 100644 --- a/UPGRADE.rst +++ b/UPGRADE.rst @@ -52,7 +52,7 @@ Upgrading to $NEXT_VERSION ==================== This release expands the anonymous usage stats sent if the opt-in -``report_stats`` configuration is set to ``true``. We now capture RSS memory +``report_stats`` configuration is set to ``true``. We now capture RSS memory and cpu use at a very coarse level. This requires administrators to install the optional ``psutil`` python module. @@ -60,13 +60,6 @@ We would appreciate it if you could assist by ensuring this module is available and ``report_stats`` is enabled. This will let us see if performance changes to synapse are having an impact to the general community. -This release also removes a number of redundant Prometheus metrics. -Administrators may need to update their dashboards and alerting rules to use -the updated metric names, if they have not already done so. See -`docs/metrics-howto.rst <docs/metrics-howto.rst#deprecated-metrics-removed-in-0-28-0>`_ -for more details. - - Upgrading to v0.15.0 ==================== diff --git a/docs/metrics-howto.rst b/docs/metrics-howto.rst index 5e2d7c52ec..8acc479bc3 100644 --- a/docs/metrics-howto.rst +++ b/docs/metrics-howto.rst @@ -34,17 +34,6 @@ How to monitor Synapse metrics using Prometheus Restart prometheus. -Deprecated metrics removed in 0.28.0 ------------------------------------- - -Synapse 0.28.0 removes all of the metrics deprecated by 0.27.0, which are those -listed under "Old name" below. This has been done to reduce the bandwidth used -by gathering metrics and the storage requirements for the Prometheus server, as -well as reducing CPU overhead for both Synapse and Prometheus. - -Administrators should update any alerts or monitoring dashboards to use the -"New name" listed below. - Block and response metrics renamed for 0.27.0 --------------------------------------------- diff --git a/synapse/http/server.py b/synapse/http/server.py index ac75206ef5..64e083ebfc 100644 --- a/synapse/http/server.py +++ b/synapse/http/server.py @@ -47,6 +47,17 @@ metrics = synapse.metrics.get_metrics_for(__name__) response_count = metrics.register_counter( "response_count", labels=["method", "servlet", "tag"], + alternative_names=( + # the following are all deprecated aliases for the same metric + metrics.name_prefix + x for x in ( + "_requests", + "_response_time:count", + "_response_ru_utime:count", + "_response_ru_stime:count", + "_response_db_txn_count:count", + "_response_db_txn_duration:count", + ) + ) ) requests_counter = metrics.register_counter( @@ -62,24 +73,39 @@ outgoing_responses_counter = metrics.register_counter( response_timer = metrics.register_counter( "response_time_seconds", labels=["method", "servlet", "tag"], + alternative_names=( + metrics.name_prefix + "_response_time:total", + ), ) response_ru_utime = metrics.register_counter( "response_ru_utime_seconds", labels=["method", "servlet", "tag"], + alternative_names=( + metrics.name_prefix + "_response_ru_utime:total", + ), ) response_ru_stime = metrics.register_counter( "response_ru_stime_seconds", labels=["method", "servlet", "tag"], + alternative_names=( + metrics.name_prefix + "_response_ru_stime:total", + ), ) response_db_txn_count = metrics.register_counter( "response_db_txn_count", labels=["method", "servlet", "tag"], + alternative_names=( + metrics.name_prefix + "_response_db_txn_count:total", + ), ) # seconds spent waiting for db txns, excluding scheduling time, when processing # this request response_db_txn_duration = metrics.register_counter( "response_db_txn_duration_seconds", labels=["method", "servlet", "tag"], + alternative_names=( + metrics.name_prefix + "_response_db_txn_duration:total", + ), ) # seconds spent waiting for a db connection, when processing this request diff --git a/synapse/util/metrics.py b/synapse/util/metrics.py index c3d8237e8f..e4b5687a4b 100644 --- a/synapse/util/metrics.py +++ b/synapse/util/metrics.py @@ -31,28 +31,53 @@ metrics = synapse.metrics.get_metrics_for(__name__) block_counter = metrics.register_counter( "block_count", labels=["block_name"], + alternative_names=( + # the following are all deprecated aliases for the same metric + metrics.name_prefix + x for x in ( + "_block_timer:count", + "_block_ru_utime:count", + "_block_ru_stime:count", + "_block_db_txn_count:count", + "_block_db_txn_duration:count", + ) + ) ) block_timer = metrics.register_counter( "block_time_seconds", labels=["block_name"], + alternative_names=( + metrics.name_prefix + "_block_timer:total", + ), ) block_ru_utime = metrics.register_counter( "block_ru_utime_seconds", labels=["block_name"], + alternative_names=( + metrics.name_prefix + "_block_ru_utime:total", + ), ) block_ru_stime = metrics.register_counter( "block_ru_stime_seconds", labels=["block_name"], + alternative_names=( + metrics.name_prefix + "_block_ru_stime:total", + ), ) block_db_txn_count = metrics.register_counter( "block_db_txn_count", labels=["block_name"], + alternative_names=( + metrics.name_prefix + "_block_db_txn_count:total", + ), ) # seconds spent waiting for db txns, excluding scheduling time, in this block block_db_txn_duration = metrics.register_counter( "block_db_txn_duration_seconds", labels=["block_name"], + alternative_names=( + metrics.name_prefix + "_block_db_txn_duration:total", + ), ) # seconds spent waiting for a db connection, in this block |