Question

Replication hashing error.

  • 13 October 2023
  • 1 reply
  • 35 views

Badge +3

Hi,
I am block replicating a 225 TB drive, however, every now and then I get a message:
I should be concerned if such errors are acceptable. 

On source: 

1476 7e8 10/13 14:25:49 22 [xxxxx8] BlrWinFsHasher::copyNextHashes() - Empty hash result received.
1476 308c 10/13 14:25:50 22 [xxxxx8] BlrCtrl::connect() - Connection to xxxxxx01/10.xx.x.xxx:57149
1476 7e8 10/13 14:31:50 22 [xxxx8] BlrHead::addEvent() - Exception for pair 22: Unexpected mixing error in source.
1476 7e8 10/13 14:31:50 22 [xxxxx8] BlrHead::error() - 0xEDDD0001:{BlrSmartSync::thread(295)/Int.1.0x1-Timed out waiting for more hashes to come from Tail ESX}.
1476 7e8 10/13 14:31:50 22 [xxxxx8] BlrHead::error() - Delegating recovery to main thread
1476 308c 10/13 14:31:50 22 [xxxxx8] BlrHead::headThread() - Error recovery
1476 308c 10/13 14:31:50 22 [xxxxx8] BlrHead::headThread() - Interrupt smartsync pair 22
1476 308c 10/13 14:31:50 22 [xxxxx8] ~BlrSmartSync() - Shortcut comparator destruction


On target:  
9088 a6c 10/13 15:23:26 ### ASSERTION FAILURE [!bucket.done_reading], File [blrdstwriterwinfs.cpp], Function [BlrWinFsTailHasher::checkBatchStatus], Line [438].
9088 2978 10/13 15:23:26 22 [xxxxxxxxxx] BlrWinFsHasher::getNextBatch() - Returns batch id=1871, size=1024, last=0 


1 reply

Userlevel 2
Badge +8

Hi Jakub,

 

It seems like the comminication is done on the high end ports  and it is failing 

1476 308c 10/13 14:25:50 22 [xxxxx8] BlrCtrl::connect() - Connection to xxxxxx01/10.xx.x.xxx:57149

 

We might have to add one-way firewall between the ource and the targer, so that the connectivity is not attempted on the high end ports .

refer to the below to configure one-way firewall : Configuring the MediaAgent and Client for One-Way Direct Connection (CommServe to Client) (commvault.com)

 

let us know if the issue exists even after adding one-way firewall.

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