# TransportClient causes abnormal system load **URL:** \ **Category:** Elasticsearch\ **Created:** [May 17, 2018, 5:57am UTC](https://discuss.elastic.co/t/transportclient-causes-abnormal-system-load/132257 "2018-05-17T05:57:51Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Jian\_Lin](https://avatars.discourse-cdn.com/v4/letter/j/f05b48/32.png) [@Jian\_Lin](https://discuss.elastic.co/u/Jian_Lin)\ **Post date:** [May 17, 2018, 5:57am UTC](https://discuss.elastic.co/t/transportclient-causes-abnormal-system-load/132257/1 "2018-05-17T05:57:51Z")
es cluster version: 2.3.3 es client version: 2.3.3 machine: centos6 8GB RAM 4 core cpu Sometimes there is no regular pattern of sudden increase in load, but io and cpu used is normal.Look the picture,on the left is the load value. ![WechatIMG106](https://us1.discourse-cdn.com/elastic/original/3X/c/6/c6793e4e227bdf1a9766e6eed6796757e44d3250.jpeg) When I use the transport client, I do not use it for any es operations. The system load will rise inexplicably. I found when i remove the transport client instantiation code, the system load is normal. Here is my transport client instance code. ```auto @Bean public TransportClient transportClient() { String clusterName = env.getProperty("elasticsearch.cluster.name"); String userName = env.getProperty("elasticsearch.cluster.userName"); String password = env.getProperty("elasticsearch.cluster.password"); Builder builder = Settings.settingsBuilder() .put("client.transport.sniff", true) .put("client.transport.ping_timeout", "120s") .put("cluster.name", clusterName) .put("shield.user", MessageFormat.format("{0}:{1}", userName, password)); Settings settings = builder.build(); try { TransportClient client = TransportClient.builder().addPlugin(ShieldPlugin.class).settings(settings).build(); String hosts = env.getProperty("elasticsearch.cluster.hostsAndPorts"); if (org.apache.commons.lang.StringUtils.isBlank(hosts)) { throw new IllegalArgumentException("Elasticsearch cluster hosts and ports is empty"); } String[] hostArr = org.apache.commons.lang.StringUtils.split(hosts, ","); for (String node : hostArr) { String ip = node.split(":")[0].trim(); int port = 9300; if (node.split(":").length > 1) { port = Integer.parseInt(node.split(":")[1]); } client.addTransportAddress(new InetSocketTransportAddress(InetAddress.getByName(ip), port)); } if (client.connectedNodes().size() == 0) { LOG.error("Has not usable ES nodes to connect."); throw new IOException("ES connect fail."); } return client; } catch (Exception e) { LOG.error("++> Init elasticsearch client failed", e); System.exit(1); } return null; } ``` ---
**Author:** ![Jian\_Lin](https://avatars.discourse-cdn.com/v4/letter/j/f05b48/32.png) [@Jian\_Lin](https://discuss.elastic.co/u/Jian_Lin)\ **Post date:** [May 17, 2018, 6:01am UTC](https://discuss.elastic.co/t/transportclient-causes-abnormal-system-load/132257/2 "2018-05-17T06:01:05Z")
here is my thread stack: ```java "elasticsearch[Razor Fist][transport_client_boss][T#1]{New I/O boss #9}" #51 daemon prio=5 os_prio=0 tid=0x00007ff080809800 nid=0x388c runnable [0x00007ff0686e1000] java.lang.Thread.State: RUNNABLE at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method) at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269) at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:93) at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86) - locked <0x00000007018742f0> (a sun.nio.ch.Util$3) - locked <0x00000007018742d8> (a java.util.Collections$UnmodifiableSet) - locked <0x00000007016ca2a8> (a sun.nio.ch.EPollSelectorImpl) at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97) at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68) at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:434) at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212) at org.jboss.netty.channel.socket.nio.NioClientBoss.run(NioClientBoss.java:42) at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108) at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:748) "elasticsearch[Razor Fist][transport_client_worker][T#8]{New I/O worker #8}" #49 daemon prio=5 os_prio=0 tid=0x00007ff0e4db5000 nid=0x388b runnable [0x00007ff0687e2000] java.lang.Thread.State: RUNNABLE at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method) at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269) at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:93) at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86) - locked <0x0000000701b75b78> (a sun.nio.ch.Util$3) - locked <0x0000000701b75b60> (a java.util.Collections$UnmodifiableSet) - locked <0x00000007016ca4a0> (a sun.nio.ch.EPollSelectorImpl) at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97) at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68) at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:434) at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212) at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89) at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178) at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108) at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:748) "elasticsearch[Razor Fist][transport_client_worker][T#7]{New I/O worker #7}" #48 daemon prio=5 os_prio=0 tid=0x00007ff0e4db3800 nid=0x388a runnable [0x00007ff0688e3000] java.lang.Thread.State: RUNNABLE at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method) at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269) at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:93) at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86) - locked <0x0000000701d0fb50> (a sun.nio.ch.Util$3) - locked <0x0000000701d0fb38> (a java.util.Collections$UnmodifiableSet) - locked <0x00000007016ca5c0> (a sun.nio.ch.EPollSelectorImpl) at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97) at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68) at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:434) at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212) at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89) at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178) at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108) at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:748) "elasticsearch[Razor Fist][transport_client_worker][T#6]{New I/O worker #6}" #47 daemon prio=5 os_prio=0 tid=0x00007ff0e4db1800 nid=0x3889 runnable [0x00007ff0689e4000] java.lang.Thread.State: RUNNABLE at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method) at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269) at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:93) at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86) - locked <0x0000000701dfb210> (a sun.nio.ch.Util$3) - locked <0x0000000701dfb1f8> (a java.util.Collections$UnmodifiableSet) - locked <0x00000007016ca650> (a sun.nio.ch.EPollSelectorImpl) at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97) at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68) at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:434) at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212) at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89) at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178) at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108) at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:748) ... ``` ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [June 14, 2018, 6:01am UTC](https://discuss.elastic.co/t/transportclient-causes-abnormal-system-load/132257/3 "2018-06-14T06:01:17Z")
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