RE: Database not getting updated

[Vishal1.Sharma]

Who’s awesome?

Jeff Jirsa is awesome!

☺

Thanks and regards,
Vishal Sharma

From: Jeff Jirsa [mailto:jji...@gmail.com]
Sent: Friday, May 11, 2018 5:51 PM
To: user@cassandra.apache.org
Subject: Re: Database not getting updated

This usually happens when you’ve got weird timestamps or a delete in the future 
- check your clocks, make sure your timestamp resolution uses the same units in 
all applications (likely microseconds), make sure you’re running NTP everywhere
--
Jeff Jirsa


On May 11, 2018, at 5:37 PM, 
<vishal1.sha...@ril.com<mailto:vishal1.sha...@ril.com>> 
<vishal1.sha...@ril.com<mailto:vishal1.sha...@ril.com>> wrote:
Dear community,

Sometimes I’ve noticed that the changes done in the database, even when done 
successfully are not reflected e.g. I added/deleted a row via cqlsh/Datastax 
C++ driver, the command/API was successful, yet when I fetched the contents of 
the table, the row that I had added/deleted, was missing/still present. Has 
anybody, noticed something similar before?
I’ve had this observation on the latest 3.11.2(earlier I had observed this on 
3.0.14). There were 2 nodes in my cluster, replication factor was 2 and 
read/write consistency was also 2.

Thanks and regards,
Vishal Sharma

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Re: Database not getting updated

[Jeff Jirsa]

This usually happens when you’ve got weird timestamps or a delete in the future 
- check your clocks, make sure your timestamp resolution uses the same units in 
all applications (likely microseconds), make sure you’re running NTP everywhere

-- 
Jeff Jirsa


> On May 11, 2018, at 5:37 PM,  
>  wrote:
> 
> Dear community,
>  
> Sometimes I’ve noticed that the changes done in the database, even when done 
> successfully are not reflected e.g. I added/deleted a row via cqlsh/Datastax 
> C++ driver, the command/API was successful, yet when I fetched the contents 
> of the table, the row that I had added/deleted, was missing/still present. 
> Has anybody, noticed something similar before?
> I’ve had this observation on the latest 3.11.2(earlier I had observed this on 
> 3.0.14). There were 2 nodes in my cluster, replication factor was 2 and 
> read/write consistency was also 2.
>  
> Thanks and regards,
> Vishal Sharma
> 
> "Confidentiality Warning: This message and any attachments are intended only 
> for the use of the intended recipient(s), are confidential and may be 
> privileged. If you are not the intended recipient, you are hereby notified 
> that any review, re-transmission, conversion to hard copy, copying, 
> circulation or other use of this message and any attachments is strictly 
> prohibited. If you are not the intended recipient, please notify the sender 
> immediately by return email and delete this message and any attachments from 
> your system.
> 
> Virus Warning: Although the company has taken reasonable precautions to 
> ensure no viruses are present in this email. The company cannot accept 
> responsibility for any loss or damage arising from the use of this email or 
> attachment."