{"id":1088,"date":"2021-01-11T17:10:51","date_gmt":"2021-01-11T09:10:51","guid":{"rendered":"https:\/\/nj.transwarp.cn:8180\/?p=1088"},"modified":"2021-01-11T17:10:48","modified_gmt":"2021-01-11T09:10:48","slug":"jvm%e7%9a%84%e5%86%85%e5%ad%98%e5%88%86%e6%9e%90%e5%91%bd%e4%bb%a4%e8%a7%a3%e6%9e%90","status":"publish","type":"post","link":"https:\/\/kbwp.transwarp.cn\/?p=1088","title":{"rendered":"JVM\u7684\u5185\u5b58\u5206\u6790\u547d\u4ee4\u89e3\u6790"},"content":{"rendered":"<h3>\u6982\u8981\u63cf\u8ff0<\/h3>\n<hr \/>\n<p>\u672c\u6848\u4f8b\u7b80\u5355\u4ecb\u7ecd\u51e0\u4e2aJVM\u5185\u5b58\u5206\u6790\u76f8\u5173\u7684\u547d\u4ee4\uff0c\u4ee5\u53ca\u6848\u4f8b\u89e3\u6790\uff1b<br \/>\n\u672c\u6848\u4f8b\u73af\u5883\uff1aTDH 5.2.2 inceptor-server \u7684\u5185\u5b58\u5206\u6790<\/p>\n<h3>\u8be6\u7ec6\u8bf4\u660e<\/h3>\n<hr \/>\n<p>JVM\u5185\u5b58\u6a21\u578b\u6bd4\u8f83\u590d\u6742\uff0c\u672c\u6587\u53ea\u7b80\u5355\u4ecb\u7ecd\u4e00\u4e0b\u5806\u5185\u5b58\u7684\u5206\u6790\uff1b\u4f7f\u7528\u5230\u7684\u547d\u4ee4\u5305\u62ec\u4ee5\u4e0b\uff1a<\/p>\n<blockquote>\n<ul>\n<li>jps<\/li>\n<li>jstat<\/li>\n<li>jmap<\/li>\n<li>jstack<\/li>\n<li>jinfo<\/li>\n<\/ul>\n<\/blockquote>\n<h4>\u5185\u5b58\u6a21\u578b<\/h4>\n<p>JVM \u5185\u5b58\u6a21\u578b\u4e3b\u8981\u6709\u4e09\u5927\u5757\uff1a\u5806\u5185\u5b58\u3001\u65b9\u6cd5\u533a\u548c\u6808\u3002<\/p>\n<ul>\n<li>\u5806\u5185\u5b58\u662f JVM\u4e2d \u6700\u5927\u7684\u4e00\u5757\uff0c\u4e3b\u8981\u662f\u7528\u6765\u4e3a\u5bf9\u8c61\u5b9e\u4f8b\u5206\u914d\u5185\u5b58\uff1b\u7531\u5e74\u8f7b\u4ee3\u548c\u8001\u5e74\u4ee3\u7ec4\u6210\uff0c\u5e74\u8f7b\u4ee3\u5185\u5b58\u53c8\u88ab\u5206\u6210\u4e09\u90e8\u5206\uff0cEden\u7a7a\u95f4\u3001From Survivor\u7a7a\u95f4\u3001To Survivor\u7a7a\u95f4\uff0c\u9ed8\u8ba4\u60c5\u51b5\u4e0b\u5e74\u8f7b\u4ee3\u6309\u71678:1:1\u7684\u6bd4\u4f8b\u6765\u5206\u914d\uff1b<\/li>\n<li>\u65b9\u6cd5\u533a\u5b58\u50a8\u7c7b\u4fe1\u606f\u3001\u5e38\u91cf\u3001\u9759\u6001\u53d8\u91cf\u7b49\u6570\u636e\uff0c\u662f\u7ebf\u7a0b\u5171\u4eab\u7684\u533a\u57df\uff0c\u4e3a\u4e0eJava\u5806\u533a\u5206\uff0c\u65b9\u6cd5\u533a\u8fd8\u6709\u4e00\u4e2a\u522b\u540dNon-Heap(\u975e\u5806)\uff0c<strong>\u65b9\u6cd5\u533a\u5927\u5c0f\u4e00\u822c\u6bd4\u8f83\u56fa\u5b9a\uff0cjstat \u65f6\u4f7f\u7528\u7387\u9ad8\u662f\u6b63\u5e38\u73b0\u8c61<\/strong>\uff1b<\/li>\n<li>\u6808\u53c8\u5206\u4e3ajava\u865a\u62df\u673a\u6808\u548c\u672c\u5730\u65b9\u6cd5\u6808\uff0c\u4e3b\u8981\u7528\u4e8e\u65b9\u6cd5\u7684\u6267\u884c\uff1b<\/li>\n<\/ul>\n<p><img decoding=\"async\" src=\"\/wp-content\/uploads\/2019\/10\/image-1570618371996.png\" alt=\"file\" \/><\/p>\n<h4>jps<\/h4>\n<p>jps \u4f5c\u7528\u662f\u663e\u793a\u5f53\u524d\u7cfb\u7edf\u7684 java \u8fdb\u7a0b\u60c5\u51b5\uff0c\u53ca\u5176 id \u53f7<\/p>\n<pre><code class=\"language-shell\">jps [-q] [-mlvV] [hostid]<\/code><\/pre>\n<p>\u4f8b\u5982\uff1a\u67e5\u770b\u5f53\u524d\u7cfb\u7edf\u4e0b\uff0c\u5f53\u524d\u7528\u6237\u8fd0\u884c\u7684java\u8fdb\u7a0b\uff08 -v\u53ef\u4ee5\u8f93\u51fa\u5f53\u524djava\u8fdb\u7a0b\u7684\u542f\u52a8\u53c2\u6570\uff09<\/p>\n<pre><code class=\"language-shell\"># jps\n428 InceptorServer2\n4003 Jps\n\n# jps -v\n428 InceptorServer2 -agentpath:\/usr\/lib\/inceptor\/bin\/libagent.so -XX:PermSize=512m -XX:MaxPermSize=2g -Djava.net.preferIPv4Stack=true -Dsun.net.inetaddr.ttl=60 -XX:+UseParNewGC -XX:NewRatio=4 -XX:+CMSClassUnloadingEnabled -XX:MinHeapFreeRatio=100 -XX:MaxHeapFreeRatio=100 -XX:CMSMaxAbortablePrecleanTime=1000 -XX:+ExplicitGCInvokesConcurrent -XX:MaxTenuringThreshold=4 -XX:TargetSurvivorRatio=8 -XX:+HeapDumpOnOutOfMemoryError -XX:+UseConcMarkSweepGC -XX:CMSInitiatingOccupancyFraction=70 -Xms2048m -Xmx4096m -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCDateStamps -XX:+PrintGCTimeStamps -Djava.library.path=\/usr\/lib\/hadoop\/lib\/native -Dspark.akka.threads=8 -Dspark.akka.threads=8 -Dspark.rdd.compress=false -Dspark.storage.memoryFraction=0.5 -Dspark.driver.host=tdh-01 -Dclass.default.serializer= -Dspark.fastdisk.dir=\/vdir\/mnt\/ramdisk\/ngmr -Dspark.storage.fastdiskFraction=0.5 -Dngmr.task.pipeline=false -Dngmr.task.pipeline.start.fraction=0.5 -Dngmr.task.pipeline.task.timeout.ms=-1 -Dspark.local.dir=\/vdir\/mnt\/disk1\/hadoop\/ngmr\/inceptor1 -Ds\n3985 Jps -Dapplication.home=\/usr\/java\/jdk1.7.0_71 -Xms8m<\/code><\/pre>\n<h4>jstat<\/h4>\n<p>jstat (JVM statistics Monitoring) \u662f\u7528\u4e8e\u76d1\u89c6\u865a\u62df\u673a\u8fd0\u884c\u65f6\u72b6\u6001\u4fe1\u606f\u7684\u547d\u4ee4\uff0c\u5b83\u53ef\u4ee5\u663e\u793a\u51fa\u865a\u62df\u673a\u8fdb\u7a0b\u4e2d\u7684\u7c7b\u88c5\u8f7d\u3001\u5185\u5b58\u3001\u5783\u573e\u6536\u96c6\u7b49\u8fd0\u884c\u6570\u636e\u3002<\/p>\n<pre><code class=\"language-shell\">jstat -option [-t] [-h lines] vmid [interval [count]]<\/code><\/pre>\n<p>\u4f8b\u5982\uff1a\u67e5\u770bvmid\u4e3a428\u7684\u8fdb\u7a0b\u7684GC\u7edf\u8ba1\u6982\u8ff0\uff0c\u6bcf\u96941000ms\u7edf\u8ba1\u4e00\u6b21\uff0c\u5171\u8f93\u51fa5\u6b21\uff08 -gc\u6253\u5370\u7684\u5185\u5bb9\u66f4\u8be6\u7ec6\uff0c\u4f46\u662f\u53ef\u8bfb\u6027\u4e0d\u5982 -gcutil\uff09<\/p>\n<pre><code class=\"language-shell\">$ jstat -gcutil 428 1000 5\n  S0      S1     E      O      P      YGC    YGCT     FGC    FGCT    GCT\n  0.00  11.42  69.45  24.25   7.36    489   20.144     2    0.165   20.308\n  0.00  11.42  69.46  24.25   7.36    489   20.144     2    0.165   20.308\n  0.00  11.42  69.46  24.25   7.36    489   20.144     2    0.165   20.308\n  0.00  11.42  69.46  24.25   7.36    489   20.144     2    0.165   20.308\n  0.00  11.42  69.46  24.25   7.36    489   20.144     2    0.165   20.308<\/code><\/pre>\n<table>\n<thead>\n<tr>\n<th>\u663e\u793a\u5217\u540d<\/th>\n<th>\u5177\u4f53\u63cf\u8ff0<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>S0<\/td>\n<td>\u5e74\u8f7b\u4ee3\u4e2d\u7b2c\u4e00\u4e2asurvivor\uff08\u5e78\u5b58\u533a\uff09\u5df2\u4f7f\u7528\u7684\u5360\u5f53\u524d\u5bb9\u91cf\u767e\u5206\u6bd4<\/td>\n<\/tr>\n<tr>\n<td>S1<\/td>\n<td>\u5e74\u8f7b\u4ee3\u4e2d\u7b2c\u4e8c\u4e2asurvivor\uff08\u5e78\u5b58\u533a\uff09\u5df2\u4f7f\u7528\u7684\u5360\u5f53\u524d\u5bb9\u91cf\u767e\u5206\u6bd4<\/td>\n<\/tr>\n<tr>\n<td>E<\/td>\n<td>\u5e74\u8f7b\u4ee3\u4e2dEden\uff08\u4f0a\u7538\u56ed\uff09\u5df2\u4f7f\u7528\u7684\u5360\u5f53\u524d\u5bb9\u91cf\u767e\u5206\u6bd4<\/td>\n<\/tr>\n<tr>\n<td>O<\/td>\n<td>\u8001\u5e74\u4ee3\u5df2\u4f7f\u7528\u7684\u5360\u5f53\u524d\u5bb9\u91cf\u767e\u5206\u6bd4<\/td>\n<\/tr>\n<tr>\n<td>P<\/td>\n<td>\u6c38\u4e45\u4ee3\u5df2\u4f7f\u7528\u7684\u5360\u5f53\u524d\u5bb9\u91cf\u767e\u5206\u6bd4<\/td>\n<\/tr>\n<tr>\n<td>YGC<\/td>\n<td>\u4ece\u5e94\u7528\u7a0b\u5e8f\u542f\u52a8\u5230\u91c7\u6837\u65f6\u5e74\u8f7b\u4ee3\u4e2dgc\u6b21\u6570<\/td>\n<\/tr>\n<tr>\n<td>YGCT<\/td>\n<td>\u4ece\u5e94\u7528\u7a0b\u5e8f\u542f\u52a8\u5230\u91c7\u6837\u65f6\u5e74\u8f7b\u4ee3\u4e2dgc\u6240\u7528\u65f6\u95f4(s)<\/td>\n<\/tr>\n<tr>\n<td>FGC<\/td>\n<td>\u4ece\u5e94\u7528\u7a0b\u5e8f\u542f\u52a8\u5230\u91c7\u6837\u65f6\u8001\u5e74\u4ee3(Fullgc)gc\u6b21\u6570<\/td>\n<\/tr>\n<tr>\n<td>FGCT<\/td>\n<td>\u4ece\u5e94\u7528\u7a0b\u5e8f\u542f\u52a8\u5230\u91c7\u6837\u65f6\u8001\u5e74\u4ee3(Fullgc)gc\u6240\u7528\u65f6\u95f4(s)<\/td>\n<\/tr>\n<tr>\n<td>GCT<\/td>\n<td>\u4ece\u5e94\u7528\u7a0b\u5e8f\u542f\u52a8\u5230\u91c7\u6837\u65f6gc\u7528\u7684\u603b\u65f6\u95f4(s)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h4>jmap<\/h4>\n<p>jmap \u53ef\u4ee5\u751f\u6210 java \u7a0b\u5e8f\u7684 dump \u6587\u4ef6\uff0c\u4e5f\u53ef\u4ee5\u67e5\u770b\u5806\u5185\u5bf9\u8c61\u793a\u4f8b\u7684\u7edf\u8ba1\u4fe1\u606f\u3001\u67e5\u770b ClassLoader \u7684\u4fe1\u606f\u4ee5\u53ca finalizer \u961f\u5217\uff1b<br \/>\n\u4e00\u822c\u5728\u8fd0\u884c\u7f13\u6162\u3001\u6027\u80fd\u4e0b\u964d\u65f6\u6536\u96c6\uff1b<\/p>\n<pre><code class=\"language-shell\">jmap [option] pid<\/code><\/pre>\n<p>\u4f8b\u5982\uff1a\u67e5\u770bpid\u4e3a428\u7684\u8fdb\u7a0b\u7684\u5806\u7684\u6d3b\u5bf9\u8c61\u7edf\u8ba1\uff0c\u5305\u62ec\u5bf9\u8c61\u6570\u3001\u5185\u5b58\u5927\u5c0f\uff08 <strong>:live \u5219\u53ea\u7edf\u8ba1\u8fd9\u4e2ajmap \u89e6\u53d1\u7684 fgc \u4e4b\u540e\u4f9d\u7136\u4fdd\u7559\u4e0b\u6765\u7684\u5bf9\u8c61\uff0c\u56e0\u6b64\u5f3a\u70c8\u5efa\u8bae\u5e26\u4e0alive<\/strong>\uff09<\/p>\n<pre><code class=\"language-shell\">$ sudo -u hive jmap -histo:live 428\n num     #instances         #bytes  class name\n----------------------------------------------\n   1:       7516794      240537408  java.util.Hashtable$Entry\n   2:        726798      236990472  [B\n   3:       4998671      159957472  java.util.concurrent.ConcurrentHashMap$HashEntry\n   4:       1644249      140301752  [C\n   5:         13815       52684464  [Ljava.util.Hashtable$Entry;\n   6:        166425       51313208  [S\n   7:        131544       45079712  [Ljava.util.concurrent.ConcurrentHashMap$HashEntry;\n   8:         83768       43484088  [I\n   9:       1627768       40297248  [Ljava.lang.String;\n  10:        259394       37995216  <constMethodKlass>\n ...            ...            ...  ...\n9998:             1             16  akka.actor.ActorPathExtractor$\nTotal      23593415     1375506264<\/code><\/pre>\n<p>jmap \u4e3b\u8981\u770b\u54ea\u4e9b\u5bf9\u8c61\u5360\u7528\u4e86\u5927\u91cf\u7684\u5185\u5b58\u7a7a\u95f4\uff0c\u5360\u7528\u7684\u662f\u5426\u5408\u7406\u7b49\u4fe1\u606f\uff0c<strong>\u9700\u8981\u540c\u65f6\u5173\u6ce8\u6570\u91cf\uff08instances\uff09\uff0c\u5927\u5c0f\uff08bytes\uff09<\/strong>\uff1b<br \/>\njmap \u4fe1\u606f\u7684\u6700\u540e\u7684\u4e00\u884c Total \u663e\u793a\u4e86\u5bf9\u8c61\u7684\u6570\u91cf\u4ee5\u53ca\u4ed6\u4eec\u4f7f\u7528\u7684\u5185\u5b58\u4fe1\u606f\uff1b<\/p>\n<h4>jstack<\/h4>\n<p>jstack \u662f\u7528\u4e8e\u751f\u6210 java \u865a\u62df\u673a\u5f53\u524d\u65f6\u523b\u7684\u7ebf\u7a0b\u5feb\u7167\u3002<br \/>\n\u7ebf\u7a0b\u5feb\u7167\u662f\u5f53\u524d JVM \u5185\u6bcf\u4e00\u4e2a\u7ebf\u7a0b\u6b63\u5728\u6267\u884c\u7684\u65b9\u6cd5\u5806\u6808\u7684\u96c6\u5408\uff0c\u4e00\u822c\u5728\u670d\u52a1\u5361\u4f4f\u7684\u65f6\u5019\u6536\u96c6\uff08\u5982\u7ebf\u7a0b\u95f4\u6b7b\u9501\u3001\u6b7b\u5faa\u73af\u3001\u8bf7\u6c42\u5916\u90e8\u8d44\u6e90\u5bfc\u81f4\u7684\u957f\u65f6\u95f4\u7b49\u5f85\u7b49\uff09\uff1b \u7ebf\u7a0b\u51fa\u73b0\u505c\u987f\u7684\u65f6\u5019\u901a\u8fc7jstack\u6765\u67e5\u770b\u5404\u4e2a\u7ebf\u7a0b\u7684\u8c03\u7528\u5806\u6808\uff0c\u5c31\u53ef\u4ee5\u77e5\u9053\u6ca1\u6709\u54cd\u5e94\u7684\u7ebf\u7a0b\u5230\u5e95\u5728\u540e\u53f0\u505a\u4ec0\u4e48\u4e8b\u60c5\uff0c\u6216\u8005\u7b49\u5f85\u4ec0\u4e48\u8d44\u6e90\u3002<\/p>\n<pre><code class=\"language-shell\">jstack [-l] pid<\/code><\/pre>\n<p>\u4f8b\u5982\uff1a\u67e5\u770bpid\u4e3a428\u8fdb\u7a0b\u5bf9\u5e94\u7684\u7ebf\u7a0b\u5feb\u7167\u3001\u5404\u7ebf\u7a0b\u7684\u8fd0\u884c\u60c5\u51b5\u7b49\u4fe1\u606f<\/p>\n<pre><code class=\"language-shell\"># sudo -u hive jstack 428\n2019-10-09 19:00:28\nFull thread dump Java HotSpot(TM) 64-Bit Server VM (24.71-b01 mixed mode):\n\n\"ForkJoinPool-2-worker-13\" daemon prio=10 tid=0x00007f58c41a1800 nid=0xdb2 waiting on condition [0x00007f585befd000]\n   java.lang.Thread.State: WAITING (parking)\n        at sun.misc.Unsafe.park(Native Method)\n        - parking to wait for  <0x00000006c30838a0> (a scala.concurrent.forkjoin.ForkJoinPool)\n        at scala.concurrent.forkjoin.ForkJoinPool.scan(ForkJoinPool.java:2075)\n        at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)\n        at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)\n\n\"ForkJoinPool-2-worker-15\" daemon prio=10 tid=0x00007f5910005800 nid=0xdb1 waiting on condition [0x00007f585acea000]\n   java.lang.Thread.State: TIMED_WAITING (parking)\n        at sun.misc.Unsafe.park(Native Method)\n        - parking to wait for  <0x00000006c30838a0> (a scala.concurrent.forkjoin.ForkJoinPool)\n        at scala.concurrent.forkjoin.ForkJoinPool.idleAwaitWork(ForkJoinPool.java:2135)\n        at scala.concurrent.forkjoin.ForkJoinPool.scan(ForkJoinPool.java:2067)\n        at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)\n        at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)<\/code><\/pre>\n<p>\u4f7f\u7528jstack\u547d\u4ee4\u67e5\u770b\u7ebf\u7a0b\u5806\u6808\u4fe1\u606f\u65f6\u53ef\u80fd\u4f1a\u9047\u5230\u4ee5\u4e0b\u51e0\u79cd\u7ebf\u7a0b\u72b6\u6001\uff0c\u91cd\u70b9\u5173\u6ce8\u76f8\u540c\u65b9\u6cd5\u7684\u6570\u91cf\u548c\u5f02\u5e38\u72b6\u6001\u7684\u65b9\u6cd5\uff1b<\/p>\n<table>\n<thead>\n<tr>\n<th>\u7ebf\u7a0b\u72b6\u6001<\/th>\n<th>\u5177\u4f53\u63cf\u8ff0<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>NEW<\/td>\n<td>\u672a\u542f\u52a8\u7684\uff0c\u4e0d\u4f1a\u51fa\u73b0\u5728Dump\u4e2d<\/td>\n<\/tr>\n<tr>\n<td>RUNNABLE<\/td>\n<td>\u5728\u865a\u62df\u673a\u5185\u6267\u884c\u7684<\/td>\n<\/tr>\n<tr>\n<td>BLOCKED<\/td>\n<td>\u53d7\u963b\u585e\u5e76\u7b49\u5f85\u76d1\u89c6\u5668\u9501<\/td>\n<\/tr>\n<tr>\n<td>WATING<\/td>\n<td>\u65e0\u9650\u671f\u7b49\u5f85\u53e6\u4e00\u4e2a\u7ebf\u7a0b\u6267\u884c\u7279\u5b9a\u64cd\u4f5c<\/td>\n<\/tr>\n<tr>\n<td>TIMED_WATING<\/td>\n<td>\u6709\u65f6\u9650\u7684\u7b49\u5f85\u53e6\u4e00\u4e2a\u7ebf\u7a0b\u7684\u7279\u5b9a\u64cd\u4f5c<\/td>\n<\/tr>\n<tr>\n<td>TERMINATED<\/td>\n<td>\u5df2\u9000\u51fa\u7684<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>jstack \u4e3b\u8981\u770b\u7ebf\u7a0b\u4e4b\u95f4\u8d44\u6e90\u62a2\u5360\u60c5\u51b5\uff0c\u662f\u5206\u6790\u7ebf\u7a0b\u6267\u884c\u5feb\u6162\u7684\u4e00\u79cd\u65b9\u6cd5\uff1b<\/p>\n<h4>jinfo<\/h4>\n<p>jinfo(JVM Configuration info) \u662f\u5b9e\u65f6\u67e5\u770b\u548c\u8c03\u6574\u865a\u62df\u673a\u8fd0\u884c\u53c2\u6570\u7684\u547d\u4ee4\u3002\u548c jps -v\u4e0d\u540c\u7684\u5730\u65b9\u662f\uff0cjinfo \u53ef\u4ee5\u663e\u793a\u672a\u6307\u5b9a\u7684\u53c2\u6570\u7684\u503c\uff0c\u4e5f\u5c31\u662f\u9ed8\u8ba4\u8fd0\u884c\u53c2\u6570\u7684\u503c\uff1b<\/p>\n<h5>\u547d\u4ee4\u683c\u5f0f<\/h5>\n<pre><code class=\"language-shell\">jinfo [option] pid<\/code><\/pre>\n<p>\u4f8b\u5982\uff1a\u67e5\u770bpid\u4e3a428\u7684\u8fdb\u7a0b\u7684\u8fd0\u884c\u53c2\u6570\uff08\u5982\u679c\u4e0d\u5e26\u4efb\u4f55\u53c2\u6570\uff0c\u53ef\u4ee5\u663e\u793a\u8be5\u8fdb\u7a0b\u5bf9\u5e94\u7684\u6240\u6709JVM\u4fe1\u606f\uff09<\/p>\n<pre><code class=\"language-shell\">$ jinfo -flags 428 |more\nAttaching to process ID 428, please wait...\nDebugger attached successfully.\nServer compiler detected.\nJVM version is 24.71-b01\n\n-agentpath:\/usr\/lib\/inceptor\/bin\/libagent.so -XX:PermSize=512m -XX:MaxPermSize=2g -Djava.net.preferIPv4Stack=true -Dsun.net.inetaddr.ttl=60 -XX:+UseParNewGC -XX:NewRatio=4 -XX:+CMSClassUnloadingEnabled -XX:MinHeapFreeRatio=100 -XX:MaxHeapFreeRatio=100 -XX:CMSMaxAbortablePrecleanTime=1000 -XX:+ExplicitGCInvokesConcurrent -XX:MaxTenuringThreshold=4 -XX:TargetSurvivorRatio=8 -XX:+HeapDumpOnOutOfMemoryError -XX:+UseConcMarkSweepGC -XX:CMSInitiatingOccupancyFraction=70 -Xms2048m -Xmx4096m -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCDateStamps -XX:+PrintGCTimeStamps -Djava.library.path=\/usr\/lib\/hadoop\/lib\/native -Dspark.akka.threads=8 -Dspark.akka.threads=8 -Dspark.rdd.compress=false -Dspark.storage.memoryFraction=0.5 -Dspark.driver.host=tdh-01 -Dclass.default.serializer= -Dspark.fastdisk.dir=\/vdir\/mnt\/ramdisk\/ngmr -Dspark.storage.fastdiskFraction=0.5 -Dngmr.task.pipeline=false -Dngmr.task.pipeline.start.fraction=0.5 -Dngmr.task.pipeline.task.timeout.ms=-1 -Dspark.local.dir=\/vdir\/mnt\/disk1\/hadoop\/ngmr\/inceptor1 -Dspark.driver.port=51888 -Dspark.driver.portfixed -Dinceptor.executorID.zkPath=\/inceptor1\/executorID -Dinceptor.executorID.zkServer=tdh-01,tdh-02,tdh-03 -Dinceptor.executorID.zkPort=2181 -Dinceptor.executorID.zkTimeout=10000 -Dspark.kryoserializer.buffer.mb=4 -Dshark.checkpoint.dir= -Dspark.ui.port=4040 -Dspark.cleaner.ttl=14400 Djava.security.auth.login.config=\/etc\/inceptor1\/conf\/kafka_client_jaas.conf -Dhive.log.dir=\/var\/log\/inceptor1 -Dhive.log.file=hive-server2.log<\/code><\/pre>\n<p>jinfo\u5728\u4e0d\u52a0\u4efb\u4f55\u53c2\u6570\u7684\u60c5\u51b5\u4e0b\uff0c\u8f93\u51fa\u5185\u5bb9\u6bd4\u8f83\u8be6\u7ec6\uff0c\u4e00\u822c\u7528\u6765\u5206\u6790\u810f\u5305\uff1b\u4e5f\u53ef\u4ee5\u7528\u6765\u68c0\u67e5\u542f\u52a8\u53c2\u6570\u662f\u5426\u6b63\u5e38\uff1b<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6982\u8981\u63cf\u8ff0 \u672c\u6848\u4f8b\u7b80\u5355\u4ecb\u7ecd\u51e0\u4e2aJVM\u5185\u5b58\u5206\u6790\u76f8\u5173\u7684\u547d\u4ee4\uff0c\u4ee5\u53ca\u6848\u4f8b\u89e3\u6790\uff1b \u672c\u6848\u4f8b\u73af\u5883\uff1aTDH 5.2.2 ince ..<\/p>\n<div class=\"clear-fix\"><\/div>\n<p><a href=\"https:\/\/kbwp.transwarp.cn\/?p=1088\" title=\"read more...\">Read more<\/a><\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1088","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"acf":[],"_links":{"self":[{"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=\/wp\/v2\/posts\/1088","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1088"}],"version-history":[{"count":3,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=\/wp\/v2\/posts\/1088\/revisions"}],"predecessor-version":[{"id":4726,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=\/wp\/v2\/posts\/1088\/revisions\/4726"}],"wp:attachment":[{"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1088"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1088"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1088"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}