client socket error
Do you know what might have cause this error on the client application? [info 2012/10/28 13:22:05.289300 Pacific Daylight Time SJC-PRD-PRN05:4984 5424] IO error[10049] in handshake with...
View ArticleUnderstanding client registrat and unregister log
1) I am trying to understand why we get the following client unregistration immediately following a registration. [info 2012/10/30 18:14:25.767 PDT <ServerConnection on port 10011 Thread 8033>...
View ArticleClear memory in distributed Region
I want to clear the memory of the region, shared between distributed systems at the end of my computation. I am not able to do it by the methods provided by the Region, clear(), destroy(). These...
View ArticleCache loader - Partitioned Region
Hi All,Anybody used cache loader to pre-load data into partitioned regions?It looks like we cannot use it.Please share your thoughts and experiences. Thanks in advance
View ArticleGemfire modules sessions - dummy session
We are using Gem Fire for storing HTTP Sessions in the region gemfire_modules_sessions. Strange behaviour we observed is, it created an empty session entry in this region when first hit the web app...
View ArticleConcurrent function execution on partitioned region
I have multiple concurrent execution calls on a partioned region to the same entry. I was told the the requests would be serialized. Fromthe errror I saw in the log, it doesn't seem to be. Is my...
View Articlecache loader only load for certain key
I have a cache loader installed on a partitioned region. I notice that the cache loader only invoke only on certain key. Region<Integer, Device> localData =...
View ArticleafterCreate event is fired even in case of update -How Events works in Gemfire?
Client Cache Configuration - <region name="test" refid="PROXY"> <region-attributes> <cache-listener>...
View ArticleIndex already exists exception
Hi, We define some indices in the xml file, like the following <gfe:index id="eticket_id_number_index" cache-ref="cache" expression="i.value.id_number" from="/Eticket.entrySet i" type="FUNCTIONAL"...
View ArticleWhat are all built-in expiry classes available?
Hi, I understand there is a configuration for custom expiry. <custom-expiry> <class-name>custom.expiry</class-name></custom-expiry> For our internal...
View ArticlePassing properties to cache.xml
Hi I'm configuring overflow disk stores for our Gemfire 6.5.1 cluster. We have around 15 data storage VM's per machine, spread over 2 machines. Looking through the documentation I can see I need to...
View ArticleMultisite - checking data
Hi All,We have 3 sites Site1, Site2 and Site3.Is there any way in Gem Fire we can check the data is consistent across these sites?Is there any logging we can that proves that data is consistent at this...
View ArticleToo many open files
We starting to have too many open files exception starting with 6.3.3.4 in our GemFire servers. Bridge server: Unexpected IOException from acceptjava.net.SocketException: Too many open fileswhen this...
View ArticleGateway upgrade from 6.5.1. -> DISTRIBUTION_POLICY_PARALLEL
Hi We're in the process of upgrading our services from 6.5.1.21 to 6.5.1.42 (providing us a fix to a stats thread memory leak). We've noticed that at 6.5.25 changes were made to the Gateway API to...
View ArticleHow work the GatewayQueueAttributes ?
I'm working with a GatewayQueueAttributes, but I do not know what the expected performance when i add the next attributes : batch-time-interval=1000batch-size=10 The problems is that, i'm doing a...
View ArticleOptionalDataException while reading from Gemfire cache
Hi, I'm getting OptionalDataException while reading from Gemfire cache region. I'm just trying to read all objects in a region by calling entrySet() and iterating through. I know the problem is while...
View ArticleregisterInterest and entry removal
Hi, Let's say there are GemFire clients that did registerInterest on a specific key on a Region. At some point the entry for that key is removed. Does GemFire auto clean up the registered interest for...
View ArticleAlternatives to OQL (select customerId, sum(qty) from /TradeCache group by...
What are some of the solutions used to get the 'group by' functionality out of data cached in Gemfire given that it does not currently support this?
View ArticleOQL 3 joins and index usage
Hi, I'm observing slow OQL and it seems it's because the indexes are not used. Assume there are 3 regions A, B and C. given the query:"select distinct c.branchId from A as a, B as b, C as c where...
View ArticleTransaction and ALLOW_PERSISTENT_TRANSACTIONS
Hi, There is not much documentation available about ALLOW_PERSISTENT_TRANSACTIONS. Is it safe to use? can't we use persistence and transaction together? What is the impact if...
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