under-pressure - npm Package Compare versions

Comparing version 5.3.0 to 5.4.0

index.d.ts

@@ -23,3 +23,3 @@ import {
   interface FastifyInstance {
-    memoryUsage(): { heapUsed: number; rssBytes: number; eventLoopDelay: number };
+    memoryUsage(): { heapUsed: number; rssBytes: number; eventLoopDelay: number; eventLoopUtilized: number };
   }
@@ -26,0 +26,0 @@ }

index.js

@@ -42,3 +42,3 @@ 'use strict'
   let elu
-  let eventLoopUtilizationVal = 0
+  let eventLoopUtilized = 0
 
@@ -143,5 +143,5 @@ if (monitorEventLoopDelay) {
     if (elu) {
-      eventLoopUtilizationVal = eventLoopUtilization(elu).utilization
+      eventLoopUtilized = eventLoopUtilization(elu).utilization
     } else {
-      eventLoopUtilizationVal = 0
+      eventLoopUtilized = 0
     }
@@ -179,3 +179,3 @@ }
 
-    if (checkMaxEventLoopUtilization && eventLoopUtilizationVal > maxEventLoopUtilization) {
+    if (checkMaxEventLoopUtilization && eventLoopUtilized > maxEventLoopUtilization) {
       sendError(reply, next)
@@ -197,3 +197,4 @@ return
       rssBytes,
-      heapUsed
+      heapUsed,
+      eventLoopUtilized
     }
@@ -200,0 +201,0 @@ }

package.json

 {
   "name": "under-pressure",
-  "version": "5.3.0",
+  "version": "5.4.0",
   "description": "Measure process load with automatic handling of 'Service Unavailable' plugin for Fastify.",
@@ -5,0 +5,0 @@ "main": "index.js",

README.md

@@ -7,3 +7,3 @@ # under-pressure
 Measure process load with automatic handling of *"Service Unavailable"* plugin for Fastify.
-It can check `maxEventLoopDelay`, `maxHeapUsedBytes` and `maxRssBytes` values.
+It can check `maxEventLoopDelay`, `maxHeapUsedBytes`, `maxRssBytes` and `maxEventLoopUtilization` values.
 You can also specify custom health check, to verify the status of
@@ -33,3 +33,4 @@ external resources.
   maxHeapUsedBytes: 100000000,
-  maxRssBytes: 100000000
+  maxRssBytes: 100000000,
+  maxEventLoopUtilization:0.98
 })
@@ -71,9 +72,11 @@
 
-The default value for `maxEventLoopDelay`, `maxHeapUsedBytes` and `maxRssBytes` is `0`.  
+The default value for `maxEventLoopDelay`, `maxHeapUsedBytes`, `maxRssBytes` and `maxEventLoopUtilization` is `0`.  
 If the value is `0` the check will not be performed.
 
+Since [`eventLoopUtilization`](https://nodejs.org/api/perf_hooks.html#perf_hooks_performance_eventlooputilization_utilization1_utilization2) is only available in Node version 14.0.0 and 12.19.0 the check will be disbaled in other versions.
+
 Thanks to the encapsulation model of Fastify, you can selectively use this plugin in some subset of routes or even with different thresholds in different plugins.
 
 #### `memoryUsage`
-This plugin also exposes a function that will tell you the current values of `heapUsed`, `rssBytes` and `eventLoopDelay`.
+This plugin also exposes a function that will tell you the current values of `heapUsed`, `rssBytes`, `eventLoopDelay` and `eventLoopUtilized`.
 ```js
@@ -80,0 +83,0 @@ console.log(fastify.memoryUsage())

test.js

@@ -254,3 +254,3 @@ 'use strict'
 test('memoryUsage name space', t => {
-  t.plan(8)
+  t.plan(9)
 
@@ -261,3 +261,4 @@ const fastify = Fastify()
     maxHeapUsedBytes: 100000000,
-    maxRssBytes: 100000000
+    maxRssBytes: 100000000,
+    maxEventLoopUtilization: 0.85
   })
@@ -269,2 +270,3 @@
     t.true(fastify.memoryUsage().rssBytes > 0)
+    t.true(fastify.memoryUsage().eventLoopUtilized >= 0)
     reply.send({ hello: 'world' })
@@ -299,3 +301,3 @@ })
 test('memoryUsage name space (without check)', t => {
-  t.plan(8)
+  t.plan(9)
 
@@ -309,2 +311,3 @@ const fastify = Fastify()
     t.true(fastify.memoryUsage().rssBytes > 0)
+    t.true(fastify.memoryUsage().eventLoopUtilized >= 0)
     reply.send({ hello: 'world' })
@@ -311,0 +314,0 @@ })

New alerts

License Policy Violation

License

This package is not allowed per your license policy. Review the package's license to ensure compliance.

Found 1 instance in 1 package

Fixed alerts

License Policy Violation

License

This package is not allowed per your license policy. Review the package's license to ensure compliance.

Found 1 instance in 1 package

Improved metrics

Total package byte prevSize

35899

increased by1.48%

Lines of code

927

increased by0.43%

Number of lines in readme file

157

increased by1.95%

No dependency changes