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From "Erick Erickson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-8346) Upgrade Zookeeper to version 3.5.5
Date Sun, 02 Jun 2019 16:26:00 GMT

    [ https://issues.apache.org/jira/browse/SOLR-8346?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16854007#comment-16854007
] 

Erick Erickson commented on SOLR-8346:
--------------------------------------

[~anshumg] Given SOLR-13507, I made two changes from the current patch:

1. Explicitly set "zookeeper.4lw.commands.whitelist" to "ruok,mntr,conf" when running embedded
ZK rather than "*".

2. Only do (1) if that sysvar isn't already set so we can get by between releases if it turns
out there's another 4-letter word that we need enabled.

So the code in SolrZkServer now looks like:
{code:java}
    if (System.getProperty(ZK_WHITELIST_PROPERTY) == null) {
      System.setProperty(ZK_WHITELIST_PROPERTY, "ruok, mntr, conf");
    }
{code}
rather than

{code}
System.setProperty(ZK_WHITELIST_PROPERTY, "*");
{code}

> Upgrade Zookeeper to version 3.5.5
> ----------------------------------
>
>                 Key: SOLR-8346
>                 URL: https://issues.apache.org/jira/browse/SOLR-8346
>             Project: Solr
>          Issue Type: Task
>          Components: SolrCloud
>            Reporter: Jan Høydahl
>            Assignee: Erick Erickson
>            Priority: Major
>              Labels: security, zookeeper
>         Attachments: SOLR-8346.patch, SOLR-8346.patch, SOLR-8346.patch, SOLR-8346.patch,
SOLR_8346.patch
>
>
> Investigate upgrading ZooKeeper to 3.5.x, once released. Primary motivation for this
is SSL support. --Currently a 3.5.4-beta is released (2018-05-17).-- Version 3.5.5 was released
2019-05-20



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