c* version: 3.0.11
cross_node_timeout: truerange_request_timeout_in_ms:
1write_request_timeout_in_ms: 2000counter_write_request_timeout_in_ms:
5000cas_contention_timeout_in_ms: 1000
On Thursday, July 6, 2017, 11:43:44 AM PDT, Subroto Barua
wrote:
I am seeing these errors:
MessagingService
I am seeing these errors:
MessagingService.java: 1013 -- MUTATION messages dropped in last 5000 ms: 0 for
internal timeout and 4 for cross node timeout
write consistency @ LOCAL_QUORUM is failing on a 3-node cluster and 18-node
cluster..
I need to batch load a lot of data everyday into a keyspace across two DCs,
one DC is at west coast and the other is at east coast.
I assume that the network delay between two DCs at different sites will
cause a lot of dropped mutation messages if I write too fast in LOCAL DC
using LOCAL_QUORUM
U said RF=1...missed that..so not sure eventual consistency is creating issues..
Thanks
Anuj Wadehra
Sent from Yahoo Mail on Android
From:"Anuj Wadehra"
Date:Sat, 13 Jun, 2015 at 11:31 pm
Subject:Re: Dropped mutation messages
I think the messages dropped are the asynchronous one
Wille"
Date:Sat, 13 Jun, 2015 at 8:29 pm
Subject:Re: Dropped mutation messages
Internode messages which are received by a node, but do not get not to be
processed within rpc_timeout are dropped rather than processed. As the
coordinator node will no longer be waiting for a response. If the Coordin
rpc_timeout it
will return a TimedOutException to the client.
I understand that, but that’s where this makes no sense. I’m running with RF=1,
and CL=QUORUM, which means each update goes to one node, and I need one
response for a success. I have many thousands of dropped mutation messages, but
no
uzzled me, after writing several 10’s of
> millions records to my test cluster.
>
> My main concern is that I have a few tens of thousands of dropped mutation
> messages. I’m overloading my cluster. I never have more than about 10% CPU
> utilization (even my I/O wait is negligible). A
mutation
messages. I’m overloading my cluster. I never have more than about 10% CPU
utilization (even my I/O wait is negligible). A curious thing about that is
that the driver hasn’t thrown any exceptions, even though mutations have been
dropped. I’ve seen dropped mutation messages on my
We have C* 2.0.9 running on three DCs, with ntpd running to synchronize time.
On our local DC we set *cross_node_timeout: true* in cassandra.yaml without
problem.
But when we did it in a remote DC we got lots of messages like
INFO [ScheduledTasks:1] 2014-09-21 21:26:45,191 MessagingService.java
n
> short, you may need to revise how you query.
>
> The queries need to be lightened
>
> /Arthur
>
>
> From: cem
> Sent: Tuesday, June 18, 2013 1:12 PM
> To: user@cassandra.apache.org
> Subject: Dropped mutation messages
>
> Hi All,
>
> I have a c
oo in dev mode, after having my node filled
> with 400 GB I started getting RPC timeouts on large data retrievals, so in
> short, you may need to revise how you query.
>
> The queries need to be lightened
>
> /Arthur
>
> *From:* cem
> *Sent:* Tuesday, June 18, 2013 1:12 PM
>
: user@cassandra.apache.org
Subject: Dropped mutation messages
Hi All,
I have a cluster of 5 nodes with C* 1.2.4.
Each node has 4 disks 1 TB each.
I see a lot of dropped messages after it stores 400 GB per disk. (1.6 TB per
node).
The recommendation was 500 GB max per node before 1.2
Hi All,
I have a cluster of 5 nodes with C* 1.2.4.
Each node has 4 disks 1 TB each.
I see a lot of dropped messages after it stores 400 GB per disk. (1.6 TB
per node).
The recommendation was 500 GB max per node before 1.2. Datastax says that
we can store terabytes of data per node with 1.2.
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