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From Debraj Manna <subharaj.ma...@gmail.com>
Subject How to upgrade zookeeper from 3.4.8 to 3.4.13?
Date Thu, 30 Aug 2018 07:01:08 GMT
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?

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