{"id":4976,"date":"2018-04-09T12:53:25","date_gmt":"2018-04-09T19:53:25","guid":{"rendered":"https:\/\/www.couchbase.com\/blog\/?p=4976"},"modified":"2023-06-13T05:26:43","modified_gmt":"2023-06-13T12:26:43","slug":"response-time-observability-with-the-java-sdk","status":"publish","type":"post","link":"https:\/\/www.couchbase.com\/blog\/ko\/response-time-observability-with-the-java-sdk\/","title":{"rendered":"Java SDK\ub97c \ud1b5\ud55c \uc751\ub2f5 \uc2dc\uac04 \uad00\ucc30 \uac00\ub2a5\uc131"},"content":{"rendered":"<p>\uc774\uc804 \ube14\ub85c\uadf8\uc5d0\uc11c \ub2e4\uc74c\uacfc \uac19\uc740 \uc811\uadfc \ubc29\uc2dd\uc5d0 \ub300\ud55c \uc774\ud574\ub97c \ub192\uc600\uc2b5\ub2c8\ub2e4. <strong>\uc2e4\uc2dc\uac04 \uad00\ucc30 \uac00\ub2a5\uc131<\/strong> (RTO)\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \ubd84\uc0b0 \uc2dc\uc2a4\ud15c \ubb38\uc81c \ud574\uacb0\uc5d0 \ub3c4\uc6c0\uc774 \ub418\uba70, \uc65c \uc6b0\ub9ac\uac00 <a href=\"https:\/\/opentracing.io\/\">\uc624\ud508\ud2b8\ub808\uc774\uc2f1<\/a> \ub97c \uae30\ucd08 \ubc0f \uacf5\uac1c API\ub85c \uc0ac\uc6a9\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uc544\uc9c1 \uc77d\uc5b4\ubcf4\uc9c0 \uc54a\uc73c\uc168\ub2e4\uba74 \ub2e4\uc74c \ube14\ub85c\uadf8\uc5d0\uc11c \ud655\uc778\ud558\uc138\uc694. <a href=\"https:\/\/www.couchbase.com\/blog\/ko\/building-an-observation-deck\/\">\uc5ec\uae30<\/a>\u00a0\uadf8\ub9ac\uace0 <a href=\"https:\/\/www.couchbase.com\/blog\/ko\/how-opentracing-became-important\/\">\uc5ec\uae30<\/a>.<\/p>\n<p>\uc774 \ube14\ub85c\uadf8\uc5d0\uc11c\ub294 RTO\uac00 \uc5b4\ub5bb\uac8c \uc791\ub3d9\ud558\ub294\uc9c0 \uc54c\uc544\ubd05\ub2c8\ub2e4. <strong>Java SDK<\/strong> \uadf8\ub9ac\uace0 \uc9c0\uae08 \ub2f9\uc7a5 \uc774\ub97c \ud65c\uc6a9\ud574 \uc774\uc775\uc744 \uc5bb\uc744 \uc218 \uc788\ub294 \ubc29\ubc95\uc744 \uc54c\uc544\ubcf4\uc138\uc694.<\/p>\n<h2>\uc2dc\uc791\ud558\uae30<\/h2>\n<p>Java SDK 2.6.0(\ub610\ub294 \uadf8 \uc774\uc0c1) \ubc84\uc804\uc774 \ucd9c\uc2dc\ub418\ub294 \uc989\uc2dc \uc124\uba85\ub41c \ub300\ub85c \uc77c\ubc18\uc801\uc778 \ubc29\ubc95\uc744 \ud1b5\ud574 \ub2e4\uc6b4\ub85c\ub4dc\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. <a href=\"https:\/\/developer.couchbase.com\/documentation\/server\/5.0\/sdk\/java\/start-using-sdk.html\">\uc5ec\uae30<\/a>. \uc774 \ubc84\uc804\uc740 \ud604\uc7ac \ud504\ub9ac\ubdf0 \ub9b4\ub9ac\uc2a4 \uc0c1\ud0dc\uc774\ubbc0\ub85c \uc790\uccb4 maven \ub9ac\ud3ec\uc9c0\ud1a0\ub9ac\uc5d0\uc11c \uc561\uc138\uc2a4\ud574\uc57c \ud569\ub2c8\ub2e4. \uba54\uc774\ube10\uc744 \ud1b5\ud574 <code>pom.xml<\/code>:<\/p>\n<pre class=\"lang:xhtml decode:true\">&lt;dependencies&gt;\r\n  &lt;dependency&gt;\r\n\t&lt;groupId&gt;com.couchbase.client&lt;\/groupId&gt;\r\n\t&lt;artifactId&gt;java-client&lt;\/artifactId&gt;\r\n\t&lt;version&gt;2.6.0-dp1&lt;\/version&gt;\r\n  &lt;\/dependency&gt;\r\n&lt;\/dependencies&gt;\r\n\r\n&lt;repositories&gt;\r\n  &lt;repository&gt;\r\n\t&lt;id&gt;cb-pre&lt;\/id&gt;\r\n\t&lt;name&gt;Couchbase Prerelease Repo&lt;\/name&gt;\r\n\t&lt;url&gt;https:\/\/files.couchbase.com\/maven2&lt;\/url&gt;\r\n  &lt;\/repository&gt;\r\n&lt;\/repositories&gt;<\/pre>\n<p>\ub208\uc5d0 \ub744\ub294 \uc720\uc77c\ud55c \ucc28\uc774\uc810\uc740 \ub2e4\uc74c\uacfc \uac19\uc740 \uc0c8\ub85c\uc6b4 \uc885\uc18d\uc131\uc785\ub2c8\ub2e4. <code>\uc624\ud508\ud2b8\ub808\uc774\uc2f1 API<\/code> \uc5d0 \ub300\ud55c \uc790\uc138\ud55c \ub0b4\uc6a9\uc740 \uc7a0\uc2dc \ud6c4\uc5d0 \uc124\uba85\ud558\uaca0\uc2b5\ub2c8\ub2e4. \uc8fc\uc694 \ub9b4\ub9ac\uc2a4\uac00 \uc544\ub2c8\ubbc0\ub85c \ubaa8\ub4e0 \uc774\uc804 \ucf54\ub4dc\ub294 \uc774\uc804\uacfc \ub3d9\uc77c\ud558\uac8c \uc791\ub3d9\ud558\uba70 \uac1c\uc120\ub41c \uae30\ub2a5\uc744 \uc989\uc2dc \ud65c\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<p>\ud2b8\ub808\uc774\uc11c \uc790\uccb4 \ub610\ub294 \uc77c\ubd80 \uad6c\uc131\uc744 \uc0ac\uc6a9\uc790 \uc9c0\uc815\ud574\uc57c \ud558\ub294 \uacbd\uc6b0, \ud2b8\ub808\uc774\uc11c\uc758 <code>CouchbaseEnvironment.Builder<\/code> \ub97c \uc124\uc815\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub2e4\uc74c\uc740 \uc815\ubcf4\uac00 \uae30\ub85d\ub418\ub294 \uc2dc\uac04 \uac04\uaca9\uc744 \uc904\uc774\uae30 \uc704\ud574 \uae30\ubcf8 \ucd94\uc801\uae30\ub97c \uc0ac\uc6a9\uc790 \uc9c0\uc815\ud558\ub294 \ubc29\ubc95\uc5d0 \ub300\ud55c \uc608\uc2dc\uc785\ub2c8\ub2e4:<\/p>\n<pre class=\"lang:java decode:true\">Tracer tracer = ThresholdLogTracer.create(ThresholdLogReporter.builder()\r\n  .logInterval(10, TimeUnit.SECONDS) \/\/ log every 10 seconds\r\n  .build());\r\n\r\nCouchbaseEnvironment env = DefaultCouchbaseEnvironment.builder()\r\n  .tracer(tracer)\r\n  .build();<\/pre>\n<h2>\uc784\uacc4\uac12 \ub85c\uae45 \uc124\uba85<\/h2>\n<p>\uc784\uacc4\uac12 \ub85c\uae45 \ucd94\uc801\uae30(\uae30\ubcf8\uc801\uc73c\ub85c \ucf1c\uc838 \uc788\uc74c)\ub97c \uc0ac\uc6a9\ud574\ubcf4\uae30 \uc704\ud574 \uc124\uc815\uc744 \uc57d\uac04 \uc0ac\uc6a9\uc790 \uc815\uc758\ud558\uace0 \uc784\uacc4\uac12\uc744 \ub0ae\ucd94\uc5b4 \uac70\uc758 \ubaa8\ub4e0 \uc694\uccad\uacfc \uc751\ub2f5\uc744 \ucc98\ub9ac\ud560 \uc218 \uc788\ub3c4\ub85d \ud574\ubcf4\uaca0\uc2b5\ub2c8\ub2e4. \ubb3c\ub860 \uc774\uac83\uc740 \ud504\ub85c\ub355\uc158 \ud658\uacbd\uc5d0\uc11c\ub294 \uc88b\uc740 \uc544\uc774\ub514\uc5b4\uac00 \uc544\ub2c8\uc9c0\ub9cc \uc6d0\ud558\ub294 \ub85c\uadf8 \ucd9c\ub825\uc744 \ube60\ub974\uac8c \uc5bb\uace0 \uadf8 \uae30\ub2a5\uc744 \ud655\uc778\ud558\ub294 \ub370 \ub3c4\uc6c0\uc774 \ub420 \uac83\uc785\ub2c8\ub2e4.<\/p>\n<p>\uc704\uc5d0 \uc124\uba85\ub41c \ub300\ub85c \ub2e4\uc74c \uad6c\uc131\uc744 \uc801\uc6a9\ud569\ub2c8\ub2e4:<\/p>\n<pre class=\"lang:java decode:true\">Tracer tracer = ThresholdLogTracer.create(ThresholdLogReporter.builder()\r\n  .kvThreshold(1) \/\/ 1 micros\r\n  .logInterval(1, TimeUnit.SECONDS) \/\/ log every second\r\n  .sampleSize(Integer.MAX_VALUE)\r\n  .pretty(true) \/\/ pretty print the json output in the logs\r\n  .build());<\/pre>\n<p>\uc774\ub807\uac8c \ud558\uba74 \ud0a4\/\uac12 \uc5f0\uc0b0\uc5d0 \ub300\ud55c \uc784\uacc4\uac12\uc744 1\ub9c8\uc774\ud06c\ub85c\ucd08\ub85c \uc124\uc815\ud558\uace0, \ubc1c\uacac\ub41c \uc5f0\uc0b0\uc744 \ub9e4\ucd08\ub9c8\ub2e4 \uae30\ub85d\ud558\uace0, \uc0d8\ud50c \ud06c\uae30\ub97c \ub9e4\uc6b0 \ud070 \uac12\uc73c\ub85c \uc124\uc815\ud558\uc5ec \ubaa8\ub4e0 \uc5f0\uc0b0\uc774 \uae30\ub85d\ub418\ub3c4\ub85d \ud569\ub2c8\ub2e4. \uae30\ubcf8\uc801\uc73c\ub85c 1\ubd84\ub9c8\ub2e4(\ubb34\uc5b8\uac00\uac00 \ubc1c\uacac\ub418\uba74) \ub85c\uae45\ud558\uace0 \uac00\uc7a5 \ub290\ub9b0 \uc0c1\uc704 10\uac1c \uc5f0\uc0b0\ub9cc \uc0d8\ud50c\ub9c1\ud569\ub2c8\ub2e4. \ud0a4\/\uac12 \uc5f0\uc0b0\uc758 \uae30\ubcf8 \uc784\uacc4\uac12\uc740 500\ubc00\ub9ac\ucd08\uc785\ub2c8\ub2e4.<\/p>\n<p>\uc774\ub7ec\ud55c \uad6c\uc131\uc774 \uc644\ub8cc\ub418\uba74 \uba87 \uac00\uc9c0 \uc791\uc5c5\uc744 \uc2e4\ud589\ud560 \uc900\ube44\uac00 \ub41c \uac83\uc785\ub2c8\ub2e4. \ub2e4\uc74c \uad6c\uc131\uc744 \uc790\uc720\ub86d\uac8c \uc870\uc815\ud558\uc5ec \uc11c\ubc84\ub97c \uac00\ub9ac\ud0a4\uace0 \uc801\uc808\ud55c \uc790\uaca9 \uc99d\uba85\uc744 \uc801\uc6a9\ud558\ub3c4\ub85d \ud558\uc138\uc694:<\/p>\n<pre class=\"lang:java decode:true\">\/\/ Connect\r\nCouchbaseEnvironment env = DefaultCouchbaseEnvironment.builder()\r\n    .tracer(tracer)\r\n    .build();\r\nCluster cluster = CouchbaseCluster.create(env, \"127.0.0.1\");\r\n\r\nBucket bucket = cluster.openBucket(\"travel-sample\");\r\n\r\n\/\/ Load a couple of docs and write them back\r\nfor(int i = 0; i &lt; 5; i++) {\r\n  JsonDocument doc = bucket.get(\"airline_1\" + i);\r\n  if (doc != null) {\r\n    bucket.upsert(doc);\r\n  }\r\n}\r\n\r\nThread.sleep(TimeUnit.MINUTES.toMillis(1));<\/pre>\n<p>\uc774 \uac04\ub2e8\ud55c \ucf54\ub4dc\uc5d0\uc11c \uc6b0\ub9ac\ub294 <code>\uc5ec\ud589 \uc0d8\ud50c<\/code> \ubc84\ud0b7\uc5d0 \ub123\uace0, \ubc1c\uacac\ub418\uba74 \ub2e4\uc2dc <code>\uc5c5\uc11c\ud2b8<\/code>. \uc774\ub97c \ud1b5\ud574 \uac04\ub2e8\ud55c \ubc29\ubc95\uc73c\ub85c \uc77d\uae30 \ubc0f \uc4f0\uae30 \uc791\uc5c5\uc744 \ubaa8\ub450 \uc218\ud589\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ucf54\ub4dc\uac00 \uc2e4\ud589\ub418\uba74 \ub85c\uadf8\uc5d0\uc11c (\uc720\uc0ac\ud55c) \ucd9c\ub825\uc744 \ubcfc \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\n<pre class=\"lang:default decode:true\">Apr 04, 2018 9:42:57 AM com.couchbase.client.core.tracing.ThresholdLogReporter logOverThreshold\r\nWARNING: Operations over threshold: [ {\r\n  \"top\" : [ {\r\n    \"server_us\" : 8,\r\n    \"local_id\" : \"41837B87B9B1C5D1\/000000004746B9AA\",\r\n    \"local_address\" : \"127.0.0.1:55011\",\r\n    \"operation_id\" : \"get:0x6\",\r\n    \"dispatch_us\" : 315,\r\n    \"remote_address\" : \"127.0.0.1:11210\",\r\n    \"total_us\" : 576\r\n  }, {\r\n    \"server_us\" : 8,\r\n    \"local_id\" : \"41837B87B9B1C5D1\/000000004746B9AA\",\r\n    \"local_address\" : \"127.0.0.1:55011\",\r\n    \"operation_id\" : \"get:0x5\",\r\n    \"dispatch_us\" : 319,\r\n    \"remote_address\" : \"127.0.0.1:11210\",\r\n    \"total_us\" : 599\r\n  }, {\r\n    \"server_us\" : 8,\r\n    \"local_id\" : \"41837B87B9B1C5D1\/000000004746B9AA\",\r\n    \"local_address\" : \"127.0.0.1:55011\",\r\n    \"operation_id\" : \"get:0x4\",\r\n    \"dispatch_us\" : 332,\r\n    \"remote_address\" : \"127.0.0.1:11210\",\r\n    \"total_us\" : 632\r\n  }, {\r\n    \"server_us\" : 11,\r\n    \"local_id\" : \"41837B87B9B1C5D1\/000000004746B9AA\",\r\n    \"local_address\" : \"127.0.0.1:55011\",\r\n    \"operation_id\" : \"get:0x3\",\r\n    \"dispatch_us\" : 392,\r\n    \"remote_address\" : \"127.0.0.1:11210\",\r\n    \"total_us\" : 762\r\n  }, {\r\n    \"server_us\" : 23,\r\n    \"local_id\" : \"41837B87B9B1C5D1\/000000004746B9AA\",\r\n    \"local_address\" : \"127.0.0.1:55011\",\r\n    \"operation_id\" : \"get:0x1\",\r\n    \"decode_us\" : 9579,\r\n    \"dispatch_us\" : 947,\r\n    \"remote_address\" : \"127.0.0.1:11210\",\r\n    \"total_us\" : 16533\r\n  }, {\r\n    \"server_us\" : 56,\r\n    \"encode_us\" : 12296,\r\n    \"local_id\" : \"41837B87B9B1C5D1\/000000004746B9AA\",\r\n    \"local_address\" : \"127.0.0.1:55011\",\r\n    \"operation_id\" : \"upsert:0x2\",\r\n    \"dispatch_us\" : 1280,\r\n    \"remote_address\" : \"127.0.0.1:11210\",\r\n    \"total_us\" : 20935\r\n  } ],\r\n  \"service\" : \"kv\",\r\n  \"count\" : 6\r\n} ]<\/pre>\n<p>This is our threshold log reporter in action! For each service (only `kv` based on this workload) it will show you the total amount of recorded ops (through `count`) and give you the top slowest ops sorted by their latency. Since only `airline_10` exists in the bucket you see 5 document fetches but only one mutation happening.<\/p>\n<p>\ud2b9\uc815 \uc791\uc5c5 \ud558\ub098\ub97c \uc0b4\ud3b4\ubcf4\uace0 \uac01 \ud544\ub4dc\uc5d0 \ub300\ud574 \uc880 \ub354 \uc790\uc138\ud788 \ub17c\uc758\ud574 \ubcf4\uaca0\uc2b5\ub2c8\ub2e4:<\/p>\n<pre class=\"lang:js decode:true\">{\r\n\t\"server_us\" : 23,\r\n\t\"local_id\" : \"41837B87B9B1C5D1\/000000004746B9AA\",\r\n\t\"local_address\" : \"127.0.0.1:55011\",\r\n\t\"operation_id\" : \"get:0x1\",\r\n\t\"decode_us\" : 1203,\r\n\t\"dispatch_us\" : 947,\r\n\t\"remote_address\" : \"127.0.0.1:11210\",\r\n\t\"total_us\" : 1525\r\n}<\/pre>\n<p>\uc774\ub97c \ud1b5\ud574 \ub2e4\uc74c\uacfc \uac19\uc740 \uc0ac\uc2e4\uc744 \uc54c \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\n<ul>\n<li><code>total_us<\/code>: \uc804\uccb4 \uc791\uc5c5\uc744 \uc218\ud589\ud558\ub294 \ub370 \uac78\ub9b0 \ucd1d \uc2dc\uac04: \uc5ec\uae30\uc11c\ub294 \uc57d 1.5\ubc00\ub9ac\ucd08\uc785\ub2c8\ub2e4.<\/li>\n<li><code>\uc11c\ubc84_\ubbf8\uad6d<\/code>: \uc11c\ubc84\uac00 \uc218\ud589\ud55c \uc791\uc5c5\uc5d0 23\ub9c8\uc774\ud06c\ub85c\ucd08\uac00 \uac78\ub838\ub2e4\uace0 \ubcf4\uace0\ud588\uc2b5\ub2c8\ub2e4(\uc5ec\uae30\uc5d0\ub294 \ub124\ud2b8\uc6cc\ud06c \uc2dc\uac04\uc774\ub098 \ud074\ub7ec\uc2a4\ud130\uc5d0\uc11c \ud53d\uc5c5\ub418\uae30 \uc804 \ubc84\ud37c\uc5d0 \uc788\ub294 \uc2dc\uac04\uc740 \ud3ec\ud568\ub418\uc9c0 \uc54a\uc74c).<\/li>\n<li><code>decode_us<\/code>: \ud074\ub77c\uc774\uc5b8\ud2b8\uac00 \uc751\ub2f5\uc744 \ub514\ucf54\ub529\ud558\ub294 \ub370 \uac78\ub9b0 \uc2dc\uac04 1.2\ubc00\ub9ac\ucd08<\/li>\n<li><code>dispatch_us<\/code>: \ud074\ub77c\uc774\uc5b8\ud2b8\uac00 \uc694\uccad\uc744 \ubcf4\ub0b4\uace0 \uc751\ub2f5\uc744 \ubc1b\ub294 \ub370 \uac78\ub9ac\ub294 \uc2dc\uac04\uc740 \uc57d 1\ubc00\ub9ac\ucd08\uc785\ub2c8\ub2e4.<\/li>\n<li><code>local_address<\/code>: \uc774 \uc791\uc5c5\uc5d0 \uc0ac\uc6a9\ub418\ub294 \ub85c\uceec \uc18c\ucf13\uc785\ub2c8\ub2e4.<\/li>\n<li><code>\uc6d0\uaca9_\uc8fc\uc18c<\/code>: \uc774 \uc791\uc5c5\uc5d0 \uc0ac\uc6a9\ub41c \uc11c\ubc84\uc758 \uc6d0\uaca9 \uc18c\ucf13\uc785\ub2c8\ub2e4. \uc601\ud5a5\uc744 \ubc1b\ub294 \ub178\ub4dc\ub97c \ud30c\uc545\ud558\ub294 \ub370 \uc720\uc6a9\ud569\ub2c8\ub2e4.<\/li>\n<li><code>operation_id<\/code>: \uc791\uc5c5 \uc720\ud615\uacfc ID(\uc774 \uacbd\uc6b0 \ubd88\ud22c\uba85 \uac12)\uc758 \uc870\ud569\uc73c\ub85c, \uc9c4\ub2e8 \ubc0f \ubb38\uc81c \ud574\uacb0\uc5d0 \uc720\uc6a9\ud569\ub2c8\ub2e4. <code>local_id<\/code>.<\/li>\n<li><code>local_id<\/code>: \uc11c\ubc84 5.5 \uc774\uc0c1\uc5d0\uc11c\ub294 \uc774 ID\uac00 \uc11c\ubc84\uc640 \ud611\uc0c1\ub418\uba70 \ubcf4\ub2e4 \uac04\ub2e8\ud55c \ubc29\uc2dd\uc73c\ub85c \uc591\ucabd\uc758 \ub85c\uae45 \uc815\ubcf4\ub97c \uc0c1\ud638 \uc5f0\uad00\uc2dc\ud0a4\ub294 \ub370 \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n<\/ul>\n<p>\uc774 \ub85c\uadf8\uc758 \uc815\ud655\ud55c \ud615\uc2dd\uc740 \uc544\uc9c1 \uc720\ub3d9\uc801\uc774\uba70 dp1\uacfc \ubca0\ud0c0\/GA \ub9b4\ub9ac\uc2a4 \uc0ac\uc774\uc5d0 \ubcc0\uacbd\ub420 \uc608\uc815\uc785\ub2c8\ub2e4.<\/p>\n<p>\uc0dd\uc0b0 \uc694\uad6c \uc0ac\ud56d\uc5d0 \ub530\ub77c \uc784\uacc4\uac12\uc744 \uc62c\ubc14\ub974\uac8c \uc124\uc815\ud558\uba74 \ub9ce\uc740 \ub178\ub825 \uc5c6\uc774\ub3c4 \ub290\ub9b0 \uc791\uc5c5\uc744 \uc774\uc804\ubcf4\ub2e4 \ub354 \uc27d\uac8c \uae30\ub85d\ud558\uace0 \uc815\ud655\ud788 \ucc3e\uc544\ub0bc \uc218 \uc788\uc74c\uc744 \uc54c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<p>\ud558\uc9c0\ub9cc \ud37c\uc990\uc5d0 \ube60\uc9c4 \ud55c \uac00\uc9c0 \uc870\uac01\uc774 \uc788\ub294\ub370, \ubc14\ub85c \uc774\uac83\uc774 \ub2e4\uc74c\uc5d0\uc11c \ub2e4\ub8f0 \ubb34\uc11c\uc6b4 <code>\ud0c0\uc784\uc544\uc6c3 \uc608\uc678<\/code>.<\/p>\n<h2>\ud0c0\uc784\uc544\uc6c3 \uac00\uc2dc\uc131<\/h2>\n<p>\uc774\uc804\uc5d0\ub294 \uc9c0\uc815\ub41c \uc2dc\uac04 \ucd08\uacfc\uac00 \ud5c8\uc6a9\ud558\ub294 \uc2dc\uac04\ubcf4\ub2e4 \uc791\uc5c5\uc774 \uc624\ub798 \uac78\ub9ac\ub294 \uacbd\uc6b0 <code>\ud0c0\uc784\uc544\uc6c3 \uc608\uc678<\/code> \uac00 \ub358\uc838\uc9d1\ub2c8\ub2e4. \uc77c\ubc18\uc801\uc73c\ub85c \ub2e4\uc74c\uacfc \uac19\uc774 \ud45c\uc2dc\ub429\ub2c8\ub2e4:<\/p>\n<pre class=\"lang:java decode:true\">Exception in thread \"main\" java.lang.RuntimeException: java.util.concurrent.TimeoutException\r\n\tat com.couchbase.client.java.util.Blocking.blockForSingle(Blocking.java:77)\r\n\tat com.couchbase.client.java.CouchbaseBucket.get(CouchbaseBucket.java:131)\r\n\tat Main.main(Main.java:34)\r\nCaused by: java.util.concurrent.TimeoutException\r\n\t... 3 more<\/pre>\n<p>\uc774 \uc2a4\ud0dd \ucd94\uc801\uc744 \ubcf4\uba74 \uba87 \uac00\uc9c0\ub97c \uc720\ucd94\ud560 \uc218 \uc788\ub294\ub370, \uc608\ub97c \ub4e4\uc5b4 \uc2dc\uac04 \ucd08\uacfc\ub41c \uc791\uc5c5\uc774 <code>GetRequest<\/code>. \ub7f0\ud0c0\uc784\uc5d0 \ub354 \ub9ce\uc740 \uc815\ubcf4\uac00 \ud544\uc694\ud55c \uacbd\uc6b0, \uae30\uc874\uc5d0\ub294 \ucee8\ud14d\uc2a4\ud2b8\uc5d0 \ub530\ub77c \ub798\ud551\ud574\uc57c \ud588\uc2b5\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4<\/p>\n<pre class=\"lang:java decode:true\">try {\r\n    bucket.get(\"foo\", 1, TimeUnit.MICROSECONDS);\r\n} catch (RuntimeException ex) {\r\n    if (ex.getCause() instanceof TimeoutException) {\r\n        throw new RuntimeException(new TimeoutException(\"id: foo, timeout: 1ms\"));\r\n    }\r\n}<\/pre>\n<p>\uc774 \ubc29\ubc95\uc740 \ub9e4\uc6b0 \uc9c0\ub8e8\ud558\uace0 \ud544\uc694\ud55c \ub0b4\ubd80 \ub3d9\uc791\uc5d0 \ub300\ud55c \ud1b5\ucc30\ub825\uc744 \uc81c\uacf5\ud558\uc9c0 \ubabb\ud569\ub2c8\ub2e4.<\/p>\n<p>\uc774 \uc0c1\ud669\uc744 \ud574\uacb0\ud558\uae30 \uc704\ud574 \uc0c8 \ud074\ub77c\uc774\uc5b8\ud2b8\ub294 \uc704\uc758 \uc791\uc5c5\uc744 (\ub300\ub7b5\uc801\uc73c\ub85c) \ud22c\uba85\ud558\uac8c \uc218\ud589\ud558\uc9c0\ub9cc \uc544\ubb34\uac83\ub3c4 \ud560 \ud544\uc694 \uc5c6\uc774 \ub354 \ub9ce\uc740 \uc815\ubcf4\ub97c \ucd94\uac00\ud569\ub2c8\ub2e4. \uc0c8 SDK\uc5d0\uc11c \ub3d9\uc77c\ud55c \uc2dc\uac04 \ucd08\uacfc\uac00 \ub2e4\uc74c\uacfc \uac19\uc774 \ud45c\uc2dc\ub429\ub2c8\ub2e4:<\/p>\n<pre class=\"lang:java decode:true\">Exception in thread \"main\" java.lang.RuntimeException: java.util.concurrent.TimeoutException: localId: 2C12AAA6637FB4FF\/00000000147B092F, opId: 0x1, local: 127.0.0.1:60389, remote: 127.0.0.1:11210, timeout: 1000us\r\n\tat rx.exceptions.Exceptions.propagate(Exceptions.java:57)\r\n\tat rx.observables.BlockingObservable.blockForSingle(BlockingObservable.java:463)\r\n\tat rx.observables.BlockingObservable.singleOrDefault(BlockingObservable.java:372)\r\n\tat com.couchbase.client.java.CouchbaseBucket.get(CouchbaseBucket.java:131)\r\n\tat SimpleReadWrite.main(SimpleReadWrite.java:64)\r\nCaused by: java.util.concurrent.TimeoutException: localId: 2C12AAA6637FB4FF\/00000000147B092F, opId: 0x1, local: 127.0.0.1:60389, remote: 127.0.0.1:11210, timeout: 1000us\r\n\tat com.couchbase.client.java.bucket.api.Utils$1.call(Utils.java:75)\r\n\tat com.couchbase.client.java.bucket.api.Utils$1.call(Utils.java:71)\r\n\t*snip*<\/pre>\n<p>\uc704\uc758 \ub85c\uadf8 \uc124\uba85\uc5d0\uc11c \uc77c\ubd80 \ud544\ub4dc\ub97c \uae30\uc5b5\ud558\uc2e4 \uc218 \uc788\ub294\ub370, \uc774\ub294 \uc758\ub3c4\ub41c \uac83\uc785\ub2c8\ub2e4. \uc774\uc81c \uc2dc\uac04 \ucd08\uacfc \uc790\uccb4\uac00 \ub85c\uceec \ubc0f \uc6d0\uaca9 \uc18c\ucf13, \uc791\uc5c5 ID, \uc2dc\uac04 \ucd08\uacfc \uc124\uc815, \ubb38\uc81c \ud574\uacb0\uc5d0 \uc0ac\uc6a9\ub41c \ub85c\uceec ID\uc640 \uac19\uc740 \uc911\uc694\ud55c \uc815\ubcf4\ub97c \uc81c\uacf5\ud569\ub2c8\ub2e4. \ubcc4\ub3c4\uc758 \ub178\ub825 \uc5c6\uc774\ub3c4 \uc774 \uc815\ubcf4\ub97c \uc784\uacc4\uac12 \ub85c\uadf8\uc5d0\uc11c \uac00\uc7a5 \ub290\ub9b0 \uc791\uc5c5\uacfc \uc5f0\uad00\uc2dc\ud0ac \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<p>\uadf8\ub9ac\uace0 <code>\ud0c0\uc784\uc544\uc6c3 \uc608\uc678<\/code> \uc774\uc81c '\ubb34\uc5c7\uc774' \uc798\ubabb\ub418\uc5c8\ub294\uc9c0\uc5d0 \ub300\ud55c \uc790\uc138\ud55c \uc815\ubcf4\ub97c \uc81c\uacf5\ud558\uace0 \ub85c\uadf8\ub97c \ud655\uc778\ud558\uc5ec '\uc65c' \uc18d\ub3c4\uac00 \ub290\ub824\uc84c\ub294\uc9c0 \ud30c\uc545\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<h2>\ud2b8\ub808\uc774\uc11c \uad50\uccb4\ud558\uae30<\/h2>\n<p>\ub9c8\uc9c0\ub9c9\uc73c\ub85c, \uc5ec\uae30\uc5d0\ub294 \ud55c \uac00\uc9c0 \uae30\ub2a5\uc774 \ub354 \ucd94\uac00\ub418\uc5c8\uc2b5\ub2c8\ub2e4. \uc55e\uc11c \uc5b8\uae09\ud588\ub4ef\uc774 \uc0c8\ub85c\uc6b4 <code>\uc624\ud508\ud2b8\ub808\uc774\uc2f1 API<\/code> \ub294 \ubc88\ub4e4\ub85c \uc81c\uacf5\ub418\ub294 \ub370\uc5d0\ub294 \uc774\uc720\uac00 \uc788\uc2b5\ub2c8\ub2e4. \uc778\ud130\ud398\uc774\uc2a4 \uc124\uba85\ub9cc \uc81c\uacf5\ud558\uc9c0\ub9cc, \uc774 \uc815\ub3c4\uba74 \ubaa8\ub4e0 \uba54\ud2b8\ub9ad\uacfc \ud1b5\uacc4\ub97c OpenTracing \ud638\ud658 \ud2b8\ub808\uc774\uc11c \uad6c\ud604\uc758 \uc804\uccb4 \uc720\ub2c8\ubc84\uc2a4\uc5d0 \uac1c\ubc29\ud558\uae30\uc5d0 \ucda9\ubd84\ud569\ub2c8\ub2e4. \ub2e4\uc74c\uacfc \uac19\uc740 \uc624\ud508 \uc18c\uc2a4 \uc911 \ud558\ub098\ub97c \uc120\ud0dd\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. <a href=\"https:\/\/jaegertracing.io\">jaeger<\/a>\ub97c \uc0ac\uc6a9\ud558\uac70\ub098 APM \uacf5\uae09\uc5c5\uccb4\uc5d0\uc11c \uc81c\uacf5\ud558\ub294 \uac83\uc744 \uc0ac\uc6a9\ud558\uac70\ub098 \uc9c1\uc811 \uc791\uc131\ud560 \uc218\ub3c4 \uc788\uc2b5\ub2c8\ub2e4. \uc5ec\uae30\uc11c \uc911\uc694\ud55c \uc810\uc740 SDK\uac00 \uc720\uc6a9\ud558\uace0 \uae30\ubcf8\uc801\uc778 \ucd94\uc801\uae30\ub97c \ud3ec\ud568\ud558\uba74\uc11c \ub2e4\ub978 \uac83\ub4e4\uc744 \uc5f0\uacb0\ud560 \uc218 \uc788\ub294 \uac1c\ubc29\uc801\uc774\uace0 \ud45c\uc900\ud654\ub41c \uc778\ud130\ud398\uc774\uc2a4\ub97c \uc0ac\uc6a9\ud55c\ub2e4\ub294 \uc810\uc785\ub2c8\ub2e4.<\/p>\n<p>\uc608\ub97c \ub4e4\uc5b4, \uae30\ubcf8 \ud2b8\ub808\uc774\uc11c\ub97c \uc608\uac70\uc758 \ud2b8\ub808\uc774\uc11c\ub85c \uad50\uccb4\ud558\ub294 \ubc29\ubc95\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\n<pre class=\"lang:java decode:true\">Tracer tracer = new Configuration(\r\n  \"my_app\",\r\n  new Configuration.SamplerConfiguration(\"const\", 1),\r\n  new Configuration.ReporterConfiguration(\r\n    true, \"localhost\", 5775, 1000, 10000)\r\n).getTracer();\r\n\r\nCouchbaseEnvironment env = DefaultCouchbaseEnvironment.builder()\r\n  .tracer(tracer)\r\n  .build();<\/pre>\n<p>\uc774\uc81c \uc2e4\uc81c \uc571\uc744 \ubcc0\uacbd\ud558\uc9c0 \uc54a\uace0\ub3c4 \ubaa8\ub4e0 \ucd94\uc801\uacfc \uc2a4\ud32c\uc774 \ubd84\uc0b0 \ucd94\uc801 \uc5d4\uc9c4\uc73c\ub85c \uc804\ub2ec\ub418\uc5b4 \uc560\ud50c\ub9ac\ucf00\uc774\uc158 \ud658\uacbd\uc758 \ub3d9\uc791\uc744 \uc2dc\uac01\ud654\ud560 \uc218 \uc788\ub294 \uba4b\uc9c4 UI\uac00 \uc81c\uacf5\ub429\ub2c8\ub2e4.<\/p>\n<p>\uc704\uc758 \uc0d8\ud50c\uacfc \uac19\uc740 get \uc791\uc5c5\uc740 \uc608\uac70 \uac1c\uc694 \ud398\uc774\uc9c0\uc5d0\uc11c \ub2e4\uc74c\uacfc \uac19\uc774 \ud45c\uc2dc\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\n<p><a href=\"https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/2018\/04\/Screen-Shot-2018-04-09-at-09.12.56.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-4977 size-large\" src=\"https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/2018\/04\/Screen-Shot-2018-04-09-at-09.12.56-1024x473.png\" alt=\"\" width=\"900\" height=\"416\" srcset=\"https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/sites\/1\/2018\/04\/Screen-Shot-2018-04-09-at-09.12.56-1024x473.png 1024w, https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/sites\/1\/2018\/04\/Screen-Shot-2018-04-09-at-09.12.56-300x139.png 300w, https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/sites\/1\/2018\/04\/Screen-Shot-2018-04-09-at-09.12.56-768x355.png 768w, https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/sites\/1\/2018\/04\/Screen-Shot-2018-04-09-at-09.12.56-1536x710.png 1536w, https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/sites\/1\/2018\/04\/Screen-Shot-2018-04-09-at-09.12.56-20x9.png 20w, https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/sites\/1\/2018\/04\/Screen-Shot-2018-04-09-at-09.12.56-1320x610.png 1320w, https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/sites\/1\/2018\/04\/Screen-Shot-2018-04-09-at-09.12.56.png 1994w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><\/a><\/p>\n<p>\ud2b9\uc815 \ud2b8\ub808\uc774\uc2a4\ub97c \ub4dc\ub9b4\ub2e4\uc6b4\ud558\uba74 \uac1c\ubcc4 \uc2a4\ud32c \ubc0f \ud558\uc704 \uc2a4\ud32c \ud0c0\uc774\ubc0d\uc774 \ud45c\uc2dc\ub429\ub2c8\ub2e4:<\/p>\n<p><a href=\"https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/2018\/04\/Screen-Shot-2018-04-09-at-09.13.13.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-4979 size-large\" src=\"https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/2018\/04\/Screen-Shot-2018-04-09-at-09.13.13-1024x287.png\" alt=\"\" width=\"900\" height=\"252\" srcset=\"https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/sites\/1\/2018\/04\/Screen-Shot-2018-04-09-at-09.13.13-1024x287.png 1024w, https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/sites\/1\/2018\/04\/Screen-Shot-2018-04-09-at-09.13.13-300x84.png 300w, https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/sites\/1\/2018\/04\/Screen-Shot-2018-04-09-at-09.13.13-768x215.png 768w, https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/sites\/1\/2018\/04\/Screen-Shot-2018-04-09-at-09.13.13-1536x430.png 1536w, https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/sites\/1\/2018\/04\/Screen-Shot-2018-04-09-at-09.13.13-2048x574.png 2048w, https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/sites\/1\/2018\/04\/Screen-Shot-2018-04-09-at-09.13.13-20x6.png 20w, https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/sites\/1\/2018\/04\/Screen-Shot-2018-04-09-at-09.13.13-1320x370.png 1320w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><\/a><\/p>\n<p>\uac01 \uc2a4\ud32c\uc5d0\ub294 \uace0\uae09 \ud544\ud130\ub9c1 \ubc0f \ubd84\uc11d\uc744 \uc704\ud574 SDK\uac00 \ucca8\ubd80\ud558\ub294 \ud0dc\uadf8\ub3c4 \ud3ec\ud568\ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\n<p><a href=\"https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/2018\/04\/Screen-Shot-2018-04-09-at-09.13.56.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-4978 size-large\" src=\"https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/2018\/04\/Screen-Shot-2018-04-09-at-09.13.56-1024x510.png\" alt=\"\" width=\"900\" height=\"448\" srcset=\"https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/sites\/1\/2018\/04\/Screen-Shot-2018-04-09-at-09.13.56-1024x510.png 1024w, https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/sites\/1\/2018\/04\/Screen-Shot-2018-04-09-at-09.13.56-300x149.png 300w, https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/sites\/1\/2018\/04\/Screen-Shot-2018-04-09-at-09.13.56-768x382.png 768w, https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/sites\/1\/2018\/04\/Screen-Shot-2018-04-09-at-09.13.56-1536x765.png 1536w, https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/sites\/1\/2018\/04\/Screen-Shot-2018-04-09-at-09.13.56-2048x1019.png 2048w, https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/sites\/1\/2018\/04\/Screen-Shot-2018-04-09-at-09.13.56-20x10.png 20w, https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/sites\/1\/2018\/04\/Screen-Shot-2018-04-09-at-09.13.56-1320x657.png 1320w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><\/a><\/p>\n<h2>\uc694\uc57d<\/h2>\n<p>\uc751\ub2f5 \uc2dc\uac04 \uad00\ucc30 \uae30\ub2a5\uc73c\ub85c SDK\ub97c \uac1c\uc120\ud558\uc5ec \uc774\uc81c \ubb34\uc5c7\uc774, \uc65c \uc608\uc0c1\ub300\ub85c \uc791\ub3d9\ud558\uc9c0 \uc54a\uac70\ub098 \uc131\ub2a5\uc774 \uc800\ud558\ub418\ub294\uc9c0\uc5d0 \ub300\ud55c \uc2ec\uce35\uc801\uc778 \uc778\uc0ac\uc774\ud2b8\ub97c \uc81c\uacf5\ud560 \uc218 \uc788\uac8c \ub418\uc5c8\uc2b5\ub2c8\ub2e4. \ub610\ud55c OpenTracing\uc744 \uc778\ud130\ud398\uc774\uc2a4\ub85c \uc0ac\uc6a9\ud568\uc73c\ub85c\uc368 \uacf5\uae09\uc5c5\uccb4\uc5d0 \uad6c\uc560\ubc1b\uc9c0 \uc54a\uace0 \ud638\ud658 \uac00\ub2a5\ud55c APM\/\ud2b8\ub798\ud0b9 \ub3c4\uad6c\uac00 \ud544\uc694\ud55c \uacbd\uc6b0 \uc774\ub97c \uc5f0\uacb0\ud560 \uc218 \uc788\ub294 \uac00\ub2a5\uc131\uc744 \uc5f4\uc5b4\ub450\uc5c8\uc2b5\ub2c8\ub2e4.<\/p>","protected":false},"excerpt":{"rendered":"<p>Previous blogs gave a better understanding on how our approach to Real Time Observability (RTO) in general helps troubleshooting distributed systems and why we chose OpenTracing as a foundation and public API. If you haven&#8217;t already, you can check out [&hellip;]<\/p>","protected":false},"author":19,"featured_media":13873,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[1816,1818,2201],"tags":[2258,2182,1281,2202,2203],"ppma_author":[8987],"class_list":["post-4976","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-couchbase-server","category-java","category-tools-sdks","tag-5-5","tag-devbuild","tag-logging","tag-opentracing","tag-timing"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.8 (Yoast SEO v25.8) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Response Time Observability with the Java SDK - The Couchbase Blog<\/title>\n<meta name=\"description\" content=\"Learn how RTO works with the Java SDK. We can have a deeper insight into what and why something is not working\/performing as expected.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.couchbase.com\/blog\/ko\/response-time-observability-with-the-java-sdk\/\" \/>\n<meta property=\"og:locale\" content=\"ko_KR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Response Time Observability with the Java SDK\" \/>\n<meta property=\"og:description\" content=\"Learn how RTO works with the Java SDK. 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