Allow jaeger batch size to be configurable

Author: allflame

composer.json

@@ -13,7 +13,7 @@
     "symfony/config": "^4.3",
     "symfony/http-kernel": "^4.3",
     "symfony/dependency-injection": "^4.3",
-    "code-tool/jaeger-client-php": "^3"
+    "code-tool/jaeger-client-php": "^3.1"
   },
   "require-dev": {
     "phpunit/phpunit": "@stable"

src/Resources/services.yml

@@ -11,6 +11,7 @@ parameters:
   env(JAEGER_DEBUG_ENV): 'debug'
   env(JAEGER_DEBUG_COOKIE): 'debug'
   env(JAEGER_SERVICE_NAME): '%service_name%'
+  env(JAEGER_SPAN_BATCH): '16'
 services:
   spl.stack:
     class: SplStack
@@ -42,7 +43,7 @@ services:
     arguments: ['@id.generator.span', '@jaeger.sampler']
   client.thrift:
     class: Jaeger\Client\ThriftClient
-    arguments: ['%env(JAEGER_SERVICE_NAME)%', '@thrift.agent']
+    arguments: ['%env(JAEGER_SERVICE_NAME)%', '@thrift.agent', '%env(JAEGER_SPAN_BATCH)%']
   thrift.agent:
     class: Jaeger\Thrift\Agent\AgentClient
     arguments: ['@thrift.protocol']