Try to understand expires_at in liveness_info

2021-12-13 Thread Eric Wong
Hello Cassandra guru: We are using Cassandra 4.0.1. I want to understand the meaning of liveness_info from sstabledump output. The following is a sample output of a record from sstabledump { "partition" : { "key" : [ "1065", "25034769", "6" ], "position" : 110384220 }, "rows" :

Re: Log4j vulnerability

2021-12-13 Thread Bowen Song
Do you mean the log4j-over-slf4j-#.jar? If so, please read: http://slf4j.org/log4shell.html On 13/12/2021 23:48, Rahul Reddy wrote: Hello, I see this jar  log4j-over-slf4j-1.7.7.jar does it have any impact on it? Why that jar is used for ? On Sat, Dec 11, 2021 at 12:45 PM Brandon

Re: Log4j vulnerability

2021-12-13 Thread Rahul Reddy
Hello, I see this jar log4j-over-slf4j-1.7.7.jar does it have any impact on it? Why that jar is used for ? On Sat, Dec 11, 2021 at 12:45 PM Brandon Williams wrote: > https://issues.apache.org/jira/browse/CASSANDRA-5883 > > As that ticket shows, Apache Cassandra has never used log4j2. > >

Re: Node failed after drive failed

2021-12-13 Thread Bowen Song
AFAIK there's nothing special being the first disk in the list. It's fairly likely that you were just "lucky" that an important part of the system keysapce was on that disk. It's always a good idea to keep some spare hardware at hand, because you will never know when will they be needed. On

Re: Node failed after drive failed

2021-12-13 Thread Joe Obernberger
Thank you Bowen.  I had the policy set to "best_effort", but as Jeff pointed out since it was the first disk in the list that failed maybe that is a special case? I don't have a spare drive at the moment, so I'll just delete all the cassandra data on that node and have it rejoin as a new