Expose background worker queue size (#2195)

Author: sl0thentr0py

CHANGELOG.md

@@ -1,3 +1,9 @@
+## Unreleased
+
+### Features
+
+- Expose `configuration.background_worker_max_queue` to control thread pool queue size [#2195](https://github.com/getsentry/sentry-ruby/pull/2195)
+
 ## 5.15.0
 
 ### Features

sentry-ruby/lib/sentry/background_worker.rb

@@ -13,10 +13,12 @@ class BackgroundWorker
     attr_reader :logger
     attr_accessor :shutdown_timeout
 
+    DEFAULT_MAX_QUEUE = 30
+
     def initialize(configuration)
-      @max_queue = 30
       @shutdown_timeout = 1
       @number_of_threads = configuration.background_worker_threads
+      @max_queue = configuration.background_worker_max_queue
       @logger = configuration.logger
       @debug = configuration.debug
       @shutdown_callback = nil

sentry-ruby/lib/sentry/configuration.rb

@@ -40,6 +40,13 @@ class Configuration
     # @return [Integer]
     attr_accessor :background_worker_threads
 
+    # The maximum queue size for the background worker.
+    # Jobs will be rejected above this limit.
+    #
+    # Default is {BackgroundWorker::DEFAULT_MAX_QUEUE}.
+    # @return [Integer]
+    attr_accessor :background_worker_max_queue
+
     # a proc/lambda that takes an array of stack traces
     # it'll be used to silence (reduce) backtrace of the exception
     #
@@ -329,6 +336,7 @@ def initialize
       self.app_dirs_pattern = nil
       self.debug = false
       self.background_worker_threads = Concurrent.processor_count
+      self.background_worker_max_queue = BackgroundWorker::DEFAULT_MAX_QUEUE
       self.backtrace_cleanup_callback = nil
       self.max_breadcrumbs = BreadcrumbBuffer::DEFAULT_SIZE
       self.breadcrumbs_logger = []