最近正在研究zookeeper,一些心得记录一下,如有错误,还请大神指正. zookeeper下载地址:http://zookeeper.apache.org/releases.html,百度一下就能找到,不过还是在这里列一下. 我认为学习一个东西,首先要理出一个头绪,否则感觉无从下手,这里我从启动开始研究,即从zkSever.sh入手. if [ "x$JMXDISABLE" = "x" ] then echo "JMX enabled by defau…
最近正在研究zookeeper,一些心得记录一下,如有错误,还请大神指正. zookeeper下载地址:http://zookeeper.apache.org/releases.html,百度一下就能找到,不过还是在这里列一下. 我认为学习一个东西,首先要理出一个头绪,否则感觉无从下手,这里我从启动开始研究,即从zkSever.sh入手. if [ "x$JMXDISABLE" = "x" ] then echo "JMX enabled by defau…
zookeeper启动时正常,查看状态时出错 处理,通过 ./zkServer.sh status 报错Error contacting service. It is probably not running. ./zkServer.sh start-foreground 发现是jdk环境变量出错./zkServer.sh: line 149: /usr/java/jdk1.7.0.67-cloudera/bin/java: 没有那个文件或目录 处理设置环境变量 vim /etc/profile…
hbase伪分布式,与zookeeper同一台机器的时候,运行一段时间,启动zookeeper的时候,日志中有如下错误,导致无法启动zookeeper java.io.IOException: Failed to process transaction type: 2 error: KeeperErrorCode = NoNode for /hbase/unassigned at org.apache.zookeeper.server.persistence.FileTxnSnapLog.res…
集群中3个节点,第一个started,第二个说Starting zookeeper ... already running as process xxxx,第三个说Starting zookeeper ... already running as process yyyy. 原来是相应目录下残留的pid文件导致启动失败,打开那个文件一看里边的进程号正是提示出现的xxxx,yyyy.删除他们后重启,好了.…
配置storm集群的时候出现如下异常: 2016-06-26 14:10:17,484 [myid:1] - WARN [SyncThread:1:FileTxnLog@334] - fsync-ing the write ahead log in SyncThread:1 took 1340ms which will adversely effect operation latency. See the ZooKeeper troubleshooting guide 2016-06-26 14…