Ignite Data loss

["krkumar24061975@gmail.com" <kr...@gmail.com>]

Hi Guys - I have ignite cache with persistence enabled. Three days back I was
having 11 billion events in the cache and yesterday it became around 10
billion and now its around 8.9 billion. Ignite data is constantly going down
on its own. Am I doing something wrong with my config or have you guys faced
similar problem ever??

Thanx and Regards,
KR Kumar



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Re: Ignite Data loss

[Evgenii Zhuravlev <e....@gmail.com>]

Hi,

Please attach full logs from all nodes for investigation.

ср, 29 апр. 2020 г. в 06:48, krkumar24061975@gmail.com <
krkumar24061975@gmail.com>:

> Checked the logs and nothing like that happened where went down.
>
> Thanx and Regards,
> KR Kumar
>
>
>
> --
> Sent from: http://apache-ignite-users.70518.x6.nabble.com/
>

Re: Ignite Data loss

["krkumar24061975@gmail.com" <kr...@gmail.com>]

Checked the logs and nothing like that happened where went down.

Thanx and Regards,
KR Kumar



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Re: Ignite Data loss

[akorensh <al...@gmail.com>]

You are using PARTITIONED caches, and some nodes might have left the grid
causing data loss
look for this message:  Topology snapshot [ .. servers=1, clients=0]
see if you are seeing servers appear or disappear?

Try changing your cache config to REPLICATED to see whether this issue
re-occurs?



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Re: Ignite Data loss

["krkumar24061975@gmail.com" <kr...@gmail.com>]

Hi Alex - Here is the cache configuration for the cache
			CacheConfiguration<Long, byte[]> cacheConfig = new
CacheConfiguration<>();
			cacheConfig.setCacheMode(CacheMode.PARTITIONED);
			cacheConfig.setRebalanceMode(CacheRebalanceMode.ASYNC);
			cacheConfig.setRebalanceDelay(rebalanceDelay);
			cacheConfig.setName("eventCache-" + tenantRunId + "-" + tenantId);
			cacheConfig.setBackups(1);
			cacheConfig.setAtomicityMode(CacheAtomicityMode.ATOMIC);
		
cacheConfig.setWriteSynchronizationMode(CacheWriteSynchronizationMode.FULL_SYNC);
			IgniteCache<Long, byte[]> cache =
IgniteContextWrapper.getInstance().getEngine()
					.getOrCreateCache(cacheConfig);
			
Here is how i am looking at the size

logger.info("Events already persisted into store for Tenant :  " + tenantId
+ " are "
					+ cache.sizeLong(CachePeekMode.PRIMARY));

Thanx and Regards,
KR Kumar




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Re: Ignite Data loss

[akorensh <al...@gmail.com>]

Hi,
  Are you using expiry policies? 
  https://apacheignite.readme.io/docs/expiry-policies
  Share your config?

  How are you measuring the #  of entries?
Thanks, Alex



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