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https://issues.apache.org/jira/browse/HADOOP-14543?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16056994#comment-16056994
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Brahma Reddy Battula commented on HADOOP-14543:
-----------------------------------------------
[~arpitagarwal] and [~hanishakoneru] thanks for taking a look. Please see
following example
{noformat}
[zk: host-110:24002,host-155:24002,host-243:24002(CONNECTED) 1] create /testAcl
Created /testAcl
[zk: host-110:24002,host-155:24002,host-243:24002(CONNECTED) 2] stat /testAcl
cZxid = 0xc00008c7c
ctime = Wed Jun 21 12:49:38 CST 2017
mZxid = 0xc00008c7c
mtime = Wed Jun 21 12:49:38 CST 2017
pZxid = 0xc00008c7c
cversion = 0
dataVersion = 0
aclVersion = 0
ephemeralOwner = 0x0
dataLength = 0
numChildren = 0
[zk: host-10-110:24002,host-155:24002,host-243:24002(CONNECTED) 3] setAcl -v 0
/testAcl "world:anyone:cdwra"
[zk: host-110:24002,host-155:24002,host-243:24002(CONNECTED) 4] stat /testAcl
cZxid = 0xc00008c7c
ctime = Wed Jun 21 12:49:38 CST 2017
mZxid = 0xc00008c7c
mtime = Wed Jun 21 12:49:38 CST 2017
pZxid = 0xc00008c7c
cversion = 0
dataVersion = 0
aclVersion = 1
ephemeralOwner = 0x0
dataLength = 0
numChildren = 0
[zk: host-110:24002,host-155:24002,host-243:24002(CONNECTED) 5] setAcl -v 0
/testAcl "world:anyone:cdwra"
version No is not valid : /testAcl
{noformat}
{{SetAcl}} will be success when it's both version number's correct(when we pass
the version) and after setting the ACL, it will increment the {{aclversion}} so
next time it will fail.
Please correct me if I am wrong.
> Should use getAversion() while setting the zkacl
> ------------------------------------------------
>
> Key: HADOOP-14543
> URL: https://issues.apache.org/jira/browse/HADOOP-14543
> Project: Hadoop Common
> Issue Type: Bug
> Reporter: Brahma Reddy Battula
> Assignee: Brahma Reddy Battula
> Attachments: HADOOP-14543.patch
>
>
> while setting the zkacl we used {color:red}{{getVersion()}}{color} which is
> dataVersion,Ideally we should use {{{color:#14892c}getAversion{color}()}}. If
> there is any acl changes( i.e relam change/..) ,we set the ACL with
> dataversion which will cause {color:#d04437}BADVersion {color}and
> {color:#d04437}*process will not start*{color}. See
> [here|https://issues.apache.org/jira/browse/HDFS-11403?focusedCommentId=16051804&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-16051804]
> {{zkClient.setACL(path, zkAcl, stat.getVersion());}}
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