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Merge pull request #659 from britto/improve-metrics-setup-and-docs
Improve metrics setup and docs
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‎README.md‎

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@@ -517,24 +517,26 @@ been started.
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#### Metrics per Hosts
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|Name |Type | Description |
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|----------------------------|---------|----------------------------|
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|hackney.HOST.nb_requests |counter | Number of running requests |
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|hackney.HOST.request_time |histogram| Request time |
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|hackney.HOST.connect_time |histogram| Connect time |
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|hackney.HOST.response_time |histogram| Response time |
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|hackney.HOST.connect_timeout|counter | Number of connect timeout |
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|hackney.HOST.connect_error |counter | Number of timeout errors |
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|Name |Type | Description |
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|----------------------------------|---------|-------------------------------------------|
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|hackney.HOST.nb_requests |counter | Number of running requests |
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|hackney.HOST.request_time |histogram| Request time |
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|hackney.HOST.connect_time |histogram| Connect time |
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|hackney.HOST.response_time |histogram| Response time |
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|hackney.HOST.connect_timeout |counter | Number of connect timeout |
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|hackney.HOST.connect_error |counter | Number of timeout errors |
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|hackney_pool.HOST.new_connection |counter | Number of new pool connections per host |
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|hackney_pool.HOST.reuse_connection|counter | Number of reused pool connections per host|
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#### Metrics per Pool
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|Name |Type | Description |
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|------------------------------|-----------|--------------------------------------------------------------------|
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|hackney.POOLNAME.take_rate |meter | meter recording rate at which a connection is retrieved from the pool|
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|hackney.POOLNAME.no_socket |counter | Count of new connections |
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|hackney.POOLNAME.in_use_count |histogram| How many connections from the pool are used |
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|hackney.POOLNAME.free_count |histogram| Number of free sockets in the pool |
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|hackney.POOLNAME.queue_counter|histogram| queued clients |
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|Name |Type | Description |
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|----------------------------------|---------|----------------------------------------------------------------------|
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|hackney_pool.POOLNAME.take_rate |meter | meter recording rate at which a connection is retrieved from the pool|
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|hackney_pool.POOLNAME.no_socket |counter | Count of new connections |
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|hackney_pool.POOLNAME.in_use_count|histogram| How many connections from the pool are used |
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|hackney_pool.POOLNAME.free_count |histogram| Number of free sockets in the pool |
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|hackney_pool.POOLNAME.queue_count |histogram| queued clients |
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## Contribute
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‎doc/README.md‎

Lines changed: 17 additions & 15 deletions
Original file line numberDiff line numberDiff line change
@@ -517,24 +517,26 @@ been started.
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#### Metrics per Hosts
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520-
|Name |Type | Description |
521-
|----------------------------|---------|----------------------------|
522-
|hackney.HOST.nb_requests |counter | Number of running requests |
523-
|hackney.HOST.request_time |histogram| Request time |
524-
|hackney.HOST.connect_time |histogram| Connect time |
525-
|hackney.HOST.response_time |histogram| Response time |
526-
|hackney.HOST.connect_timeout|counter | Number of connect timeout |
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|hackney.HOST.connect_error |counter | Number of timeout errors |
520+
|Name |Type | Description |
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|----------------------------------|---------|-------------------------------------------|
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|hackney.HOST.nb_requests |counter | Number of running requests |
523+
|hackney.HOST.request_time |histogram| Request time |
524+
|hackney.HOST.connect_time |histogram| Connect time |
525+
|hackney.HOST.response_time |histogram| Response time |
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|hackney.HOST.connect_timeout |counter | Number of connect timeout |
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|hackney.HOST.connect_error |counter | Number of timeout errors |
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|hackney_pool.HOST.new_connection |counter | Number of new pool connections per host |
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|hackney_pool.HOST.reuse_connection|counter | Number of reused pool connections per host|
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#### Metrics per Pool
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531-
|Name |Type | Description |
532-
|------------------------------|-----------|--------------------------------------------------------------------|
533-
|hackney.POOLNAME.take_rate |meter | meter recording rate at which a connection is retrieved from the pool|
534-
|hackney.POOLNAME.no_socket |counter | Count of new connections |
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|hackney.POOLNAME.in_use_count |histogram| How many connections from the pool are used |
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|hackney.POOLNAME.free_count |histogram| Number of free sockets in the pool |
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|hackney.POOLNAME.queue_counter|histogram| queued clients |
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|Name |Type | Description |
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|----------------------------------|---------|----------------------------------------------------------------------|
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|hackney_pool.POOLNAME.take_rate |meter | meter recording rate at which a connection is retrieved from the pool|
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|hackney_pool.POOLNAME.no_socket |counter | Count of new connections |
537+
|hackney_pool.POOLNAME.in_use_count|histogram| How many connections from the pool are used |
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|hackney_pool.POOLNAME.free_count |histogram| Number of free sockets in the pool |
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|hackney_pool.POOLNAME.queue_count |histogram| queued clients |
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## Contribute
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‎doc/overview.edoc‎

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@@ -512,24 +512,26 @@ been started.
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#### Metrics per Hosts
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515-
|Name |Type | Description |
516-
|----------------------------|---------|----------------------------|
517-
|hackney.HOST.nb_requests |counter | Number of running requests |
518-
|hackney.HOST.request_time |histogram| Request time |
519-
|hackney.HOST.connect_time |histogram| Connect time |
520-
|hackney.HOST.response_time |histogram| Response time |
521-
|hackney.HOST.connect_timeout|counter | Number of connect timeout |
522-
|hackney.HOST.connect_error |counter | Number of timeout errors |
515+
|Name |Type | Description |
516+
|----------------------------------|---------|-------------------------------------------|
517+
|hackney.HOST.nb_requests |counter | Number of running requests |
518+
|hackney.HOST.request_time |histogram| Request time |
519+
|hackney.HOST.connect_time |histogram| Connect time |
520+
|hackney.HOST.response_time |histogram| Response time |
521+
|hackney.HOST.connect_timeout |counter | Number of connect timeout |
522+
|hackney.HOST.connect_error |counter | Number of timeout errors |
523+
|hackney_pool.HOST.new_connection |counter | Number of new pool connections per host |
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|hackney_pool.HOST.reuse_connection|counter | Number of reused pool connections per host|
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#### Metrics per Pool
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|Name |Type | Description |
527-
|------------------------------|-----------|--------------------------------------------------------------------|
528-
|hackney.POOLNAME.take_rate |meter | meter recording rate at which a connection is retrieved from the pool|
529-
|hackney.POOLNAME.no_socket |counter | Count of new connections |
530-
|hackney.POOLNAME.in_use_count |histogram| How many connections from the pool are used |
531-
|hackney.POOLNAME.free_count |histogram| Number of free sockets in the pool |
532-
|hackney.POOLNAME.queue_counter|histogram| queued clients |
528+
|Name |Type | Description |
529+
|----------------------------------|---------|----------------------------------------------------------------------|
530+
|hackney_pool.POOLNAME.take_rate |meter | meter recording rate at which a connection is retrieved from the pool|
531+
|hackney_pool.POOLNAME.no_socket |counter | Count of new connections |
532+
|hackney_pool.POOLNAME.in_use_count|histogram| How many connections from the pool are used |
533+
|hackney_pool.POOLNAME.free_count |histogram| Number of free sockets in the pool |
534+
|hackney_pool.POOLNAME.queue_count |histogram| queued clients |
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## Contribute
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‎src/hackney_pool.erl‎

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Original file line numberDiff line numberDiff line change
@@ -598,15 +598,15 @@ init_metrics(PoolName) ->
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_ = metrics:new(Engine, counter, [hackney_pool, PoolName, no_socket]),
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_ = metrics:new(Engine, histogram, [hackney_pool, PoolName, in_use_count]),
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_ = metrics:new(Engine, histogram, [hackney_pool, PoolName, free_count]),
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_ = metrics:new(Engine, histogram, [hackney_pool, PoolName, queue_counter]),
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_ = metrics:new(Engine, histogram, [hackney_pool, PoolName, queue_count]),
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Engine.
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delete_metrics(Engine, PoolName) ->
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_ = metrics:delete(Engine, [hackney_pool, PoolName, take_rate]),
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_ = metrics:delete(Engine, [hackney_pool, PoolName, no_socket]),
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_ = metrics:delete(Engine, [hackney_pool, PoolName, in_use_count]),
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_ = metrics:delete(Engine, [hackney_pool, PoolName, free_count]),
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_ = metrics:delete(Engine, [hackney_pool, PoolName, queue_counter]),
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_ = metrics:delete(Engine, [hackney_pool, PoolName, queue_count]),
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ok.
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