That’s great to hear!
Maybe it would make sense to add these defaults to Flink, if they don’t
otherwise degrade performance.
Best,
Aljoscha
> On 29. Jun 2017, at 22:44, Vinay Patil <vinay18.pa...@gmail.com> wrote:
>
> Hi Guys,
>
> I am able to overcome the physical memory consumption issue by setting the
> following options of RocksDB:
>
> DBOptions:
> along with the FLASH_SSD_OPTIONS added the following:
> maxBackgroundCompactions(4)
>
> ColumnFamilyOptions:
> max_buffer_size : 512 MB
> block_cache_size : 128 MB
> max_write_buffer_number : 5
> minimum_buffer_number_to_merge : 2
> cacheIndexAndFilterBlocks : true
> optimizeFilterForHits: true
>
> I am going to modify these options to get the desired performance.
>
> I have set the DbLogDir("/var/tmp/") and StatsSumpPeriodicSec but I only got
> the configurations set in the log file present in var/tmp/
>
> Where will I get the RocksDB statistics if I set createStatistics ?
>
> Let me know if any other configurations will help to get better performance.
> Now the physical memory is slowly getting increased and I can see the drop in
> the graph ( this means flushing is taking place at regular intervals )
>
> Regards,
> Vinay Patil
>
> On Thu, Jun 29, 2017 at 9:13 PM, Vinay Patil <vinay18.pa...@gmail.com
> <mailto:vinay18.pa...@gmail.com>> wrote:
> The state size is not that huge. On the Flink UI when it showed the data sent
> as 4GB , the physical memory usage was close to 90GB ..
>
> I will re-run by setting the Flushing options of RocksDB because I am facing
> this issue on 1.2.0 as well.
>
> Regards,
> Vinay Patil
>
> On Thu, Jun 29, 2017 at 9:03 PM, Aljoscha Krettek <aljos...@apache.org
> <mailto:aljos...@apache.org>> wrote:
> Yup, I got that. I’m just wondering whether this occurs only with enabled
> checkpointing or also when checkpointing is disabled.
>
>> On 29. Jun 2017, at 17:31, Vinay Patil <vinay18.pa...@gmail.com
>> <mailto:vinay18.pa...@gmail.com>> wrote:
>>
>> Hi Aljoscha,
>>
>> Yes I have tried with 1.2.1 and 1.3.0 , facing the same issue.
>>
>> The issue is not of Heap memory , it is of the Off-Heap memory that is
>> getting used ( please refer to the earlier snapshot I have attached in
>> which the graph keeps on growing ).
>>
>>
>> Regards,
>> Vinay Patil
>>
>> On Thu, Jun 29, 2017 at 8:55 PM, Aljoscha Krettek <aljos...@apache.org
>> <mailto:aljos...@apache.org>> wrote:
>> Just a quick remark: Flink 1.3.0 and 1.2.1 always use FRocksDB, you
>> shouldn’t manually specify that.
>>
>>> On 29. Jun 2017, at 17:20, Vinay Patil <vinay18.pa...@gmail.com
>>> <mailto:vinay18.pa...@gmail.com>> wrote:
>>>
>>> Hi Gerry,
>>>
>>> Even I have faced this issue on 1.3.0 even by using FRocksDB and enabling
>>> incremental checkpointing.
>>>
>>> You can add FRocksDB dependency as shown here :
>>> https://github.com/apache/flink/pull/3704
>>> <https://github.com/apache/flink/pull/3704>
>>>
>>> We will have to set some RocksDB parameters to get this working.
>>>
>>> @Stefan or @Stephan : can you please help in resolving this issue
>>>
>>> Regards,
>>> Vinay Patil
>>>
>>> On Thu, Jun 29, 2017 at 6:01 PM, gerryzhou [via Apache Flink User Mailing
>>> List archive.] <ml+s2336050n1406...@n4.nabble.com
>>> <mailto:ml+s2336050n1406...@n4.nabble.com>> wrote:
>>> Hi, Vinay,
>>> I observed a similar problem in flink 1.3.0 with rocksdb. I wonder how
>>> to use FRocksDB as you mentioned above. Thanks.
>>>
>>> If you reply to this email, your message will be added to the discussion
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