cassandra-commits mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Peter Kovgan (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-10937) OOM on multiple nodes on write load (v. 3.0.0), problem also present on DSE-4.8.3, but there it survives more time
Date Thu, 31 Dec 2015 05:40:49 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-10937?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Peter Kovgan updated CASSANDRA-10937:
-------------------------------------
    Description: 
8 cassandra nodes.

Load test started with 4 clients(different and not equal machines), each running 1000 threads.
Each thread assigned in round-robin way to run one of 4 different inserts. 
Consistency->ONE.

I attach the full CQL schema of tables and the query of insert.

Replication factor - 2:
create keyspace OBLREPOSITORY_NY with replication = {'class':'NetworkTopologyStrategy','NY':2};

Initiall throughput is:
215.000  inserts /sec
or
54Mb/sec, considering single insert size a bit larger than 256byte.

Data:
all fields(5-6) are short strings, except one is BLOB of 256 bytes.

After about a 2-3 hours of work, I was forced to increase timeout from 2000 to 5000ms, for
some requests failed for short timeout.

Later on(after aprox. 12 hous of work) OOM happens on multiple nodes.
(all failed nodes logs attached)

I attach also java load client and instructions how set-up and use it.(test2.rar)

Update:

Later on test repeated with lesser load (100000 mes/sec) with more relaxed CPU (idle 25%),
with only 2 test clients, but anyway test failed.

Update:

DSE-4.8.3 also failed on OOM (3 nodes from 8), but here it survived 48 hours, not 10-12.

If we do not find resolution in closest time we will consider some other DB.

Attachments:
test2.rar -contains most of material
more-logs.rar - contains additional nodes logs






  was:
8 cassandra nodes.

Load test started with 4 clients(different and not equal machines), each running 1000 threads.
Each thread assigned in round-robin way to run one of 4 different inserts. 
Consistency->ONE.

I attach the full CQL schema of tables and the query of insert.

Replication factor - 2:
create keyspace OBLREPOSITORY_NY with replication = {'class':'NetworkTopologyStrategy','NY':2};

Initiall throughput is:
215.000  inserts /sec
or
54Mb/sec, considering single insert size a bit larger than 256byte.

Data:
all fields(5-6) are short strings, except one is BLOB of 256 bytes.

After about a 2-3 hours of work, I was forced to increase timeout from 2000 to 5000ms, for
some requests failed for short timeout.

Later on(after aprox. 12 hous of work) OOM happens on multiple nodes.
(all failed nodes logs attached)

I attach also java load client and instructions how set-up and use it.(test2.rar)

Update:

Later on test repeated with lesser load (100000 mes/sec) with more relaxed CPU (idle 25%),
with only 2 test clients, but anyway test failed.

Update:

DSE-4.8.3 also failed on OOM (3 nodes from 8), but here it survived 48 hours, not 10-12.


Attachments:
test2.rar -contains most of material
more-logs.rar - contains additional nodes logs







> OOM on multiple nodes on write load (v. 3.0.0), problem also present on DSE-4.8.3, but
there it survives more time
> ------------------------------------------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-10937
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-10937
>             Project: Cassandra
>          Issue Type: Bug
>         Environment: Cassandra : 3.0.0
> Installed as open archive, no connection to any OS specific installer.
> Java:
> Java(TM) SE Runtime Environment (build 1.8.0_65-b17)
> OS :
> Linux version 2.6.32-431.el6.x86_64 (mockbuild@x86-023.build.eng.bos.redhat.com) (gcc
version 4.4.7 20120313 (Red Hat 4.4.7-4) (GCC) ) #1 SMP Sun Nov 10 22:19:54 EST 2013
> We have:
> 8 guests ( Linux OS as above) on 2 (VMWare managed) physical hosts. Each physical host
keeps 4 guests.
> Physical host parameters(shared by all 4 guests):
> Model: HP ProLiant DL380 Gen9
> Intel(R) Xeon(R) CPU E5-2690 v3 @ 2.60GHz
> 46 logical processors.
> Hyperthreading - enabled
> Each guest assigned to have:
> 1 disk 300 Gb for seq. log (NOT SSD)
> 1 disk 4T for data (NOT SSD)
> 11 CPU cores
> Disks are local, not shared.
> Memory on each host -  24 Gb total.
> 8 (or 6, tested both) Gb - cassandra heap
> (lshw and cpuinfo attached in file test2.rar)
>            Reporter: Peter Kovgan
>            Priority: Critical
>         Attachments: gc-stat.txt, more-logs.rar, some-heap-stats.rar, test2.rar, test3.rar,
test4.rar
>
>
> 8 cassandra nodes.
> Load test started with 4 clients(different and not equal machines), each running 1000
threads.
> Each thread assigned in round-robin way to run one of 4 different inserts. 
> Consistency->ONE.
> I attach the full CQL schema of tables and the query of insert.
> Replication factor - 2:
> create keyspace OBLREPOSITORY_NY with replication = {'class':'NetworkTopologyStrategy','NY':2};
> Initiall throughput is:
> 215.000  inserts /sec
> or
> 54Mb/sec, considering single insert size a bit larger than 256byte.
> Data:
> all fields(5-6) are short strings, except one is BLOB of 256 bytes.
> After about a 2-3 hours of work, I was forced to increase timeout from 2000 to 5000ms,
for some requests failed for short timeout.
> Later on(after aprox. 12 hous of work) OOM happens on multiple nodes.
> (all failed nodes logs attached)
> I attach also java load client and instructions how set-up and use it.(test2.rar)
> Update:
> Later on test repeated with lesser load (100000 mes/sec) with more relaxed CPU (idle
25%), with only 2 test clients, but anyway test failed.
> Update:
> DSE-4.8.3 also failed on OOM (3 nodes from 8), but here it survived 48 hours, not 10-12.
> If we do not find resolution in closest time we will consider some other DB.
> Attachments:
> test2.rar -contains most of material
> more-logs.rar - contains additional nodes logs



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Mime
View raw message