Dump thread and jvm stats.

tests/performance/ecommerce_hybrid_search/ecommerce_hybrid_search_es.rb

@@ -16,6 +16,7 @@ def test_hybrid_search
     prepare_es_app
 
     benchmark_feed(feed_file_name, get_num_docs, @feed_threads, "feed")
+    dump_jvm_stats
     benchmark_queries("after_feed", false, [1, 2, 4, 8, 16, 32, 64])
     benchmark_queries("after_feed", true, [1])
     feed_thread = Thread.new { benchmark_feed(feed_file_name, get_num_docs, @feed_threads, "refeed") }

tests/performance/ecommerce_hybrid_search/ecommerce_hybrid_search_es_base.rb

@@ -27,6 +27,7 @@ def prepare_es_app
     install_es
     start_es
     create_index
+    dump_thread_stats
   end
 
   def install_es
@@ -61,6 +62,16 @@ def create_index
     @node.execute("curl -X PUT '#{@es_endpoint}/product?pretty' -H 'Content-Type: application/json' -d @#{node_file}")
   end
 
+  def dump_thread_stats
+    puts "Thread pool statistics:"
+    @node.execute("curl -X GET '#{@es_endpoint}/_cat/thread_pool?h=name,type,size'")
+  end
+
+  def dump_jvm_stats
+    puts "JVM statistics:"
+    @node.execute("curl -X GET '#{@es_endpoint}/_nodes/stats/jvm?pretty'")
+  end
+
   def benchmark_feed(feed_file, num_docs, num_threads, label)
     # This creates feed files with 6k documents each (~50 MB per file).
     files = prepare_feed_files(feed_file, dirs.tmpdir + "feed/", 12000)

tests/performance/ecommerce_hybrid_search/ecommerce_hybrid_search_es_merge_1.rb

@@ -17,6 +17,7 @@ def test_hybrid_search
 
     benchmark_feed(feed_file_name, get_num_docs, @feed_threads, "feed")
     benchmark_force_merge(get_num_docs, 1)
+    dump_jvm_stats
     benchmark_queries("after_merge", false, [1, 2, 4, 8, 16, 32, 64])
   end