From 12841bb4af33e07742c58ed63bc78c993058d4b8 Mon Sep 17 00:00:00 2001 From: tswstarplanet Date: Sun, 8 Mar 2020 15:57:06 +0800 Subject: [PATCH] use stringbuilder to append string (#2108) --- .../service/zk/AbstractZKClient.java | 18 ++++++++++-------- 1 file changed, 10 insertions(+), 8 deletions(-) diff --git a/dolphinscheduler-service/src/main/java/org/apache/dolphinscheduler/service/zk/AbstractZKClient.java b/dolphinscheduler-service/src/main/java/org/apache/dolphinscheduler/service/zk/AbstractZKClient.java index 135bfdabc6..fa1a0bfced 100644 --- a/dolphinscheduler-service/src/main/java/org/apache/dolphinscheduler/service/zk/AbstractZKClient.java +++ b/dolphinscheduler-service/src/main/java/org/apache/dolphinscheduler/service/zk/AbstractZKClient.java @@ -65,14 +65,16 @@ public abstract class AbstractZKClient extends ZookeeperCachedOperator { if (splits.length != Constants.HEARTBEAT_FOR_ZOOKEEPER_INFO_LENGTH){ return; } - String str = splits[0] + Constants.COMMA - + splits[1] + Constants.COMMA - + OSUtils.cpuUsage() + Constants.COMMA - + OSUtils.memoryUsage() + Constants.COMMA - + OSUtils.loadAverage() + Constants.COMMA - + splits[5] + Constants.COMMA - + DateUtils.dateToString(new Date()); - zkClient.setData().forPath(znode,str.getBytes()); + StringBuilder sb = new StringBuilder(); + sb.append(splits[0]).append(Constants.COMMA) + .append(splits[1]).append(Constants.COMMA) + .append(OSUtils.cpuUsage()).append(Constants.COMMA) + .append(OSUtils.memoryUsage()).append(Constants.COMMA) + .append(OSUtils.loadAverage()).append(Constants.COMMA) + .append(splits[5]).append(Constants.COMMA) + .append(DateUtils.dateToString(new Date())); + + zkClient.setData().forPath(znode, sb.toString().getBytes()); } catch (Exception e) { logger.error("heartbeat for zk failed", e);