[Users] March 9, 2021 Zeta Alliance Conference Call Summary
randy at skywaynetworks.com
Fri Apr 16 20:14:06 CEST 2021
Hello Zeta Alliance Community,
Here is a summary of this week’s conference call. A few brief reminders:
* Conference calls are every Tuesday and open to all using either the FreeConferenceCall.com VoIP app or via a dial-in number: [ https://www.freeconferencecall.com/wall/zetalliance | https://www.freeconferencecall.com/wall/zetalliance ]
* Each week’s call agenda can be found at: [ https://drive.google.com/drive/folders/1xDyBJFjnfZYxuXJHiDzsXjjMuGGtIl7J | https://drive.google.com/drive/folders/1xDyBJFjnfZYxuXJHiDzsXjjMuGGtIl7J ]
* A copy of each week’s summary is also posted to the Zimbra Forums:
* All Prior Months: [ https://forums.zimbra.org/viewforum.php?f=9 | https://forums.zimbra.org/viewforum.php?f=9 ]
* February 2021 : [ https://forums.zimbra.org/viewtopic.php?f=9&t=69470 | https://forums.zimbra.org/viewtopic.php?f=9&t=69470 ]
* March 2021 : [ https://forums.zimbra.org/viewtopic.php?f=9&t=69488 | https://forums.zimbra.org/viewtopic.php?f=9&t=69488 ]
* Constructive feedback on these call summaries is always welcome.
March 9, 2021
Zimbra 8.8.15 Patch 19 Experiences
Mark S. said he installed 8.8.15 Patch 19, and has had no problems so far. He did however encounter one possible issue in Zimbra’s mailbox.log: Code:mail.TOO_MUCH_METADATA Arg:(limit, NUM, "32768"). He has opened a Zimbra Support case for further investigation.
Experiences With the Zimbra Connector Partial Synchronization Feature and Feedback
Noah P. said he began testing the new partial synchronization feature for Zimbra Connector for Outlook ( [ https://zimbra.github.io/zm-windows-comp/latest/ZCS_Connector_For_Outlook_User_Guide.html#_partialcustomized_sync | https://zimbra.github.io/zm-windows-comp/latest/ZCS_Connector_For_Outlook_User_Guide.html#_partialcustomized_sync ] ) and wanted to know what the experience would be like for mailbox users. He asked how the purge process worked. John H. said that if you set the partial sync feature in the Zimbra Connector for 60 days, anything older gets moved to the “Zimbra Trash” folder, that is a sub-folder of the regular Trash folder. Noah P. said that he was concerned having two folders called Trash would be confusing for users. John H. said he agrees and thinks that having older messages purge immediately would be best, rather than moving them to the trash sub-folder on the client-side in Outlook. Noah P. suggested perhaps renaming the folder to something similar to “Sync Purges” that might be less confusing. John H. said he wrote a new Wiki page ( [ https://wiki.zimbra.com/wiki/Zco_partial_sync | https://wiki.zimbra.com/wiki/Zco_partial_sync ] ) that provides additional details on this feature. He has plans to expand this Wiki page with a better explanation of how the message purge process works. Noah asked, if you set the Zimbra Connector Partial Sync feature for 60 days, and items older than this date are moved to the trash folder, does that means that the retention for deleted items is set to 60 days, or does it mean that the deleted items hang around for 120 days? John H. confirmed that items are deleted after 60 days. John H. added that if you set the Partial Sync feature for 60 days, then later change it to 90 days, it will not bring back messages older than 60 days. The only way to get those older items back in Outlook is to delete and re-create the Outlook profile, thereby causing Outlook to perform a full re-synchronization of the complete mailbox from the Zimbra server.
Zimbra Docs Server
Chad said that he recently rolled out Zimbra Docs Server and has seen some issues where manual document saves fail, especially when working on collaborative document editing with team members. Cine suggested running the latest version of everything (Zimbra, Docs Server, etc.) as compared to a mix of old and new versions of the components, since this will often remedy these types of issues. Chad said he did not have the latest Zimbra patch installed, so he will try installing it to see if that resolves the issue.
Mark S. asked, when upgrading an existing Zimbra Docs server, is it still unsupported to copy the configuration file from the existing Docs server, deploy a new Docs server, then paste in the configuration file to the new Docs server for an upgrade? Cine said he did not know if this is officially supported. Mark S. also asked how does he know if he is running the latest version of the a Zimbra Docs Server? He wanted to know if Zextras sends a new Docs Server binary to Zimbra monthly or only when it is updated. John H. said that normally a new Docs Server version will be announced in the release notes of new Zimbra patches.
Follow-Up: Purging Expired Mailbox Data From S3 Backups
Following up on the March 2nd Zeta Alliance Call discussion related to an issue purging expired mailbox data backed up to S3 storage, and mailbox corruption that seems to affect empty mailboxes that are backed up, Mark S. said that in his testing of Zimbra’s Centralized Storage feature, he has only encountered the bug related to the purging of expired data from his S3 storage, but has not seen mailbox corruption due to empty mailboxes. Matthew F. said he currently suspects the mailbox corruption issue might be due to a busy mailbox where items are frequently added/removed that he is currently investigating.
Improving S3 Throughput for Zimbra Backups and HSM
Mark S. asked when using S3 for Zimbra backups, or as an HSM secondary volume, what are the recommended ways for improving the throughput to S3 in terms of items per second. Cine said he did not think there was any means to control this, but suggested to try using multiple S3 buckets, rather than a single bucket for everything. Cine also suggested considering using an SSD drive for the cache directory. Mark S. suggested an additional option of using a Ram disk, for the caching directory’s individual S3 buckets. Matthew F. said he will also give the Ram disk suggestion a shot to see if that helps provide a performance boost on a test server.
Randy Leiker ( randy at skywaynetworks.com )
Skyway Networks, LLC
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