cribed happened, or is the
> order with which you presented them the order you notice things going
> wrong?
>
> On Thu, Jun 27, 2019 at 1:29 PM Dmitry Simonov
> wrote:
>
>> Thanks for your reply!
>>
>> > Have you tried increasing concurrent reads until you see mor
=transport.scope=Native-Transport-Requests.name=TotalBlockedTasks.Count
>
>
>
> On Thu, Jun 27, 2019 at 1:52 AM Dmitry Simonov
> wrote:
>
>> Hello!
>>
>> We've met several times the following problem.
>>
>> Cassandra cluster (5 nodes) becomes unresponsive
.
I cannot tie this problem with increased load from clients ("read rate"
does't increase during the problem).
Also looks like there is no problem with disks (I/O latencies are OK).
Could anybody please give some advice in further troubleshooting?
--
Best Regards,
Dmitry Simonov
:21:40,064 Error attempting to reconnect to 10.0.0.47,
scheduling retry in 512.0 seconds: [Errno None] Tried connecting to
[('10.0.0.47', 9042)]. Last error: timed out
:1:(4, 'Interrupted system call')
IOError:
IOError:
IOError:
IOError:
IOError:
--
Best Regards,
Dmitry Simonov
In the previous message, I have pasted source code from cassandra 2.2.8 by
mistake.
Re-checked for 2.2.11 source.
These lines are the same.
2018-06-21 2:49 GMT+05:00 Dmitry Simonov :
> Hello!
>
> Using Cassandra 2.2.11, I observe behaviour, that is very similar to
> https://issue
issues)
during repair may also lead to the same problem.
Is it a known issue?
--
Best Regards,
Dmitry Simonov
; On 5 Apr 2018, at 8:35 pm, Dmitry Simonov <dimmobor...@gmail.com> wrote:
>
> Thank you!
> I'll check this out.
>
> 2018-04-05 15:00 GMT+05:00 Alexander Dejanovski <a...@thelastpickle.com>:
>
>> 40 pending compactions is pretty high and you should have w
e number of pending compactions and see if it prevents the issue
> from happening again.
>
> Cheers,
>
>
> On Thu, Apr 5, 2018 at 11:33 AM Dmitry Simonov <dimmobor...@gmail.com>
> wrote:
>
>> Hi, Alexander!
>>
>> SizeTieredCompactionStrategy i
.@thelastpickle.com>:
> Hi Dmitry,
>
> could you tell us which compaction strategy that table is currently using ?
> Also, what is the compaction max throughput and is auto-compaction
> correctly enabled on that node ?
>
> Did you recently run repair ?
>
> Thanks,
&
, on other nodes: 3 sstable.
Data size in this keyspace was not very big ~100-200Mb per node.
There is no such problem with other CFs of that keyspace.
nodetool compact solved the issue as a quick-fix.
But I'm wondering, what was the cause? How prevent it from repeating?
--
Best Regards,
Dmitry
nconsistency (huge I/O wait at some
> point, blocked proc etc)
>
>
>
>
> On 16 March 2018 at 07:33, Dmitry Simonov <dimmobor...@gmail.com> wrote:
>
>> Hello!
>>
>> We are experiencing problems with Cassandra 2.2.8.
>> There is a cluster with 3 node
;batch_mutate" queries at all, only
reads!
There are no GC warnings about long pauses
Could you please help troubleshooting the issue?
--
Best Regards,
Dmitry Simonov
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