David Minard
2017-Dec-01 05:00 UTC
[Samba] samba-tool drs showrepl Issues After updating to 4.5.15
G'day All, We have a test and production SambaAD running very happily, but they are many versions out of date. We need to upgrade. Both versions of Samba are currently running 4.3.2. Our test SambaAD runs on Centos6 with two DCs running in the same data centre. Our production SambaAD runs on Centos7 with 4 DCs across 4 geographically dispersed data Centres. I went about updating the test SambaAD by installing Samba4.3.13, testing everything, and all was well. Then I moved onto Samba4.4.16, and again everything worked well. However, when I went to Samba4.5.15, and did: samba-tool drs showrepl, on the DC with all the FSMO roles failed with TIMEOUT issues more than 50% of the time. It never failed with previous versions. Being a VM, I reverted the test SambaADs back to 4.4.16, just to make sure that showrepl worked fine, and it did. Being curious, I have since moved forward in version, 4.4.16 --> 4.5.15 --> 4.6.11 --> 4.7.3. The results of showrepl; 4.5.15, still flaky. 4.6.11, still flaky. 4.7.3, works every time, but really really slowly. Throughout this process, on the nonFSMO DC showrepl works every time, and very quickly. So my questions are: What was different in 4.5.x that might have caused this issue? Given that 4.7.x seems to have showrepl working, although excessively slowly, is it a concern? Obviously before I start updating the production SambaAD, I need to be sure I will not break things. Cheers, David. -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.
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