Cross-posting from stackoverflow <https://stackoverflow.com/questions/52090357/how-to-upgrade-zookeeper-from-from-3-8-to-3-13>
I am trying to upgrade zookeeper from 3.4.8 to 3.4.13. Before upgrade the content of /usr/lib/zookeeper drwxr-xr-x 5 root root 4.0K Aug 23 08:39 . drwxr-xr-x 77 root root 12K Aug 23 08:50 .. drwxr-xr-x 2 root root 4.0K Aug 23 08:39 bin lrwxrwxrwx 1 root root 19 May 24 11:25 conf -> /etc/zookeeper/conf drwxr-xr-x 2 root root 4.0K Aug 23 08:39 lib -rw-r--r-- 1 root root 12K May 24 11:25 LICENSE.txt -rw-r--r-- 1 root root 170 May 24 11:25 NOTICE.txt -rw-r--r-- 1 root root 1.3M Aug 23 08:39 zookeeper-3.4.8.jar lrwxrwxrwx 1 root root 38 Aug 23 08:39 zookeeper.jar -> /usr/lib/zookeeper/zookeeper-3.4.8.jar As mentioned in answer <https://serverfault.com/a/758671/300869> I have downloaded the zookeeper from this link <http://mirrors.fibergrid.in/apache/zookeeper/zookeeper-3.4.13/zookeeper-3.4.13.tar.gz> and placed the zookeeper-3.4.13.jar in /usr/lib/zookeeper and pointed the symbolic link like below lrwxrwxrwx 1 root root 39 Aug 30 03:19 zookeeper.jar -> /usr/lib/zookeeper/zookeeper-3.4.13.jar But on checking the status after resarting zookeeper it is still pointing to 3.4.8 ubuntu@vrni-platform:/etc/zookeeper/conf$ telnet localhost 2181 Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. status Zookeeper version: 3.4.8--1, built on 02/06/2016 03:18 GMT It appears this is because of the way the jars are loaded from /usr/lib/zookeeper/bin/zkEnv.sh #release tarball format for i in "$ZOOBINDIR"/../zookeeper-*.jar do CLASSPATH="$i:$CLASSPATH" done Can someone let me know is this some known issue is zkEnv.sh? Is this expected?
