Re: lots of DigestMismatchException in cassandra3

2016-11-22 Thread kurt Greaves
nsert, update, delete on the > same record at the same time , is it a possibility? > > > > -- > > Regards, Adeline > > > > > > > > *From:* kurt Greaves [mailto:k...@instaclustr.com] > *Sent:* Wednesday, November 23, 2016 6:51 AM > *To

RE: lots of DigestMismatchException in cassandra3

2016-11-22 Thread Adeline.Pan
, 2016 6:51 AM To: Pan, Adeline (TR Technology & Ops) Cc: user@cassandra.apache.org Subject: Re: lots of DigestMismatchException in cassandra3 Yes it could potentially impact performance if there are lots of them. The mismatch would occur on a read, the error occurs on a write which is why the t

Re: lots of DigestMismatchException in cassandra3

2016-11-22 Thread kurt Greaves
n think of? Would it cause performance issue when lots of this > “Mismatch” happened? > > > > -- > > Regards, Adeline > > > > > > > > *From:* kurt Greaves [mailto:k...@instaclustr.com] > *Sent:* Monday, November 21, 2016 5:02 PM > *To:* user@

RE: lots of DigestMismatchException in cassandra3

2016-11-21 Thread Adeline.Pan
other cause you can think of? Would it cause performance issue when lots of this “Mismatch” happened? -- Regards, Adeline From: kurt Greaves [mailto:k...@instaclustr.com] Sent: Monday, November 21, 2016 5:02 PM To: user@cassandra.apache.org Cc: tommy.stend...@ericsson.com Subject: Re: lots

Re: lots of DigestMismatchException in cassandra3

2016-11-21 Thread kurt Greaves
Actually, just saw the error message in those logs and what you're looking at is probably https://issues.apache.org/jira/browse/CASSANDRA-12694 Kurt Greaves k...@instaclustr.com www.instaclustr.com On 21 November 2016 at 08:59, kurt Greaves wrote: > That's a debug

RE: lots of DigestMismatchException in cassandra3

2016-11-21 Thread kurt Greaves
That's a debug message. From the sound of it, it's triggered on read where there is a digest mismatch between replicas. As to whether it's normal, well that depends on your cluster. Are the nodes reporting lots of dropped mutations and are you writing at

RE: lots of DigestMismatchException in cassandra3

2016-11-20 Thread Adeline.Pan
Hi Tommy, Thank you for the reply, but I don't think this is the reason, because we don't have any static column. -- Regards, Adeline From: Tommy Stendahl [mailto:tommy.stend...@ericsson.com] Sent: Thursday, November 17, 2016 5:16 PM To: user@cassandra.apache.org Subject: Re: lots

Re: lots of DigestMismatchException in cassandra3

2016-11-17 Thread Tommy Stendahl
Hi, Could it be CASSANDRA-12090 ? Regards, /Tommy On 2016-11-17 09:47, adeline@thomsonreuters.com wrote: Hi, We are using Cassandra 3.7 and we have a single datacenter of 4 nodes, RF =3, and the consistency level is quorum. I