[jira] [Updated] (IGNITE-1903) Cache configuration is serialized to nodes whether they require it or not

2019-03-20 Thread Pavel Kovalenko (JIRA)


 [ 
https://issues.apache.org/jira/browse/IGNITE-1903?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Pavel Kovalenko updated IGNITE-1903:

Fix Version/s: 2.8

> Cache configuration is serialized to nodes whether they require it or not
> -
>
> Key: IGNITE-1903
> URL: https://issues.apache.org/jira/browse/IGNITE-1903
> Project: Ignite
>  Issue Type: Bug
>Affects Versions: 1.5.0.final
>Reporter: Michael Griggs
>Assignee: Pavel Kovalenko
>Priority: Major
>  Labels: community, usability
> Fix For: 2.8
>
>
> See User discussion thread:  
> http://apache-ignite-users.70518.x6.nabble.com/CacheStore-being-serialized-to-client-td1931.html
> Brief summary:  When a grid client joins the grid (clientMode=true) it 
> receives a message from the server node(s) on the grid that contains the 
> serialized CacheStore implementation object.  If the client does not have 
> this class on its CLASSPATH (and there is no reason it should, as it is a 
> client) then the de-serialization of this message will fail, causing this 
> exception:
> {code}SEVERE: Failed to unmarshal discovery data for component: 1 
> class org.apache.ignite.IgniteCheckedException: Failed to find class with 
> given class loader for unmarshalling (make sure same versions of all classes 
> are available on all nodes or enable peer-class-loading): 
> sun.misc.Launcher$AppClassLoader@14dad5dc 
> at 
> org.apache.ignite.marshaller.jdk.JdkMarshaller.unmarshal(JdkMarshaller.java:104)
>  
> at 
> org.apache.ignite.marshaller.AbstractMarshaller.unmarshal(AbstractMarshaller.java:67)
>  
> at 
> org.apache.ignite.spi.discovery.tcp.TcpDiscoverySpi.onExchange(TcpDiscoverySpi.java:1529)
>  
> at 
> org.apache.ignite.spi.discovery.tcp.ClientImpl$MessageWorker.processNodeAddFinishedMessage(ClientImpl.java:1317)
>  
> at 
> org.apache.ignite.spi.discovery.tcp.ClientImpl$MessageWorker.processDiscoveryMessage(ClientImpl.java:1229)
>  
> at 
> org.apache.ignite.spi.discovery.tcp.ClientImpl$MessageWorker.body(ClientImpl.java:1199)
>  
> at org.apache.ignite.spi.IgniteSpiThread.run(IgniteSpiThread.java:62) 
> Caused by: java.lang.ClassNotFoundException: 
> c.g.r.cachewrapper.ignite.CacheMissHandlerIgnite
> {code}
> where {{c.g.r.cachewrapper.ignite.CacheMissHandlerIgnite}} is the CacheStore 
> implementation.
> The ostensible reason for the CacheStore serialization is so that clients of 
> a TRANSACTIONAL cache can begin the transaction on the underlying store.  
> The only current solution to this is to add the grid node's CacheStore 
> implementation class definition to the CLASSPATH of the client.  This creates 
> an *undesirable coupling* between server and client.
> ---
> *UPDATE (copy-paste from comment below)*
> This is actually more generic issue. When a new node joins (client or 
> server), all existing cache configurations (which include cache stores) are 
> sent to this node. It then deserializes it during startup which can cause 
> exceptions on clients or servers where cache is not supposed to be deployed 
> as defined by node filter.
> As a solution we can do the following:
> * During discovery, send node filter and cache store factory in binary format 
> along with the cache configuration, not as its parts.
> * On server, check node filter first and deserialize cache configuration and 
> cache store only if it returns true. In case of error, STOP join process (now 
> we just print exception in log and go on, which is very error-prone).
> * On client, do not deserialize cache configuration and cache store until 
> user's code tries to actually use the cache (calls Ignite.cache. If cache is 
> ATOMIC, never deserialize the cache store.



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[jira] [Updated] (IGNITE-1903) Cache configuration is serialized to nodes whether they require it or not

2018-09-27 Thread Vladimir Ozerov (JIRA)


 [ 
https://issues.apache.org/jira/browse/IGNITE-1903?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Vladimir Ozerov updated IGNITE-1903:

Fix Version/s: (was: 2.7)

> Cache configuration is serialized to nodes whether they require it or not
> -
>
> Key: IGNITE-1903
> URL: https://issues.apache.org/jira/browse/IGNITE-1903
> Project: Ignite
>  Issue Type: Bug
>Affects Versions: 1.5.0.final
>Reporter: Michael Griggs
>Priority: Major
>  Labels: community, usability
>
> See User discussion thread:  
> http://apache-ignite-users.70518.x6.nabble.com/CacheStore-being-serialized-to-client-td1931.html
> Brief summary:  When a grid client joins the grid (clientMode=true) it 
> receives a message from the server node(s) on the grid that contains the 
> serialized CacheStore implementation object.  If the client does not have 
> this class on its CLASSPATH (and there is no reason it should, as it is a 
> client) then the de-serialization of this message will fail, causing this 
> exception:
> {code}SEVERE: Failed to unmarshal discovery data for component: 1 
> class org.apache.ignite.IgniteCheckedException: Failed to find class with 
> given class loader for unmarshalling (make sure same versions of all classes 
> are available on all nodes or enable peer-class-loading): 
> sun.misc.Launcher$AppClassLoader@14dad5dc 
> at 
> org.apache.ignite.marshaller.jdk.JdkMarshaller.unmarshal(JdkMarshaller.java:104)
>  
> at 
> org.apache.ignite.marshaller.AbstractMarshaller.unmarshal(AbstractMarshaller.java:67)
>  
> at 
> org.apache.ignite.spi.discovery.tcp.TcpDiscoverySpi.onExchange(TcpDiscoverySpi.java:1529)
>  
> at 
> org.apache.ignite.spi.discovery.tcp.ClientImpl$MessageWorker.processNodeAddFinishedMessage(ClientImpl.java:1317)
>  
> at 
> org.apache.ignite.spi.discovery.tcp.ClientImpl$MessageWorker.processDiscoveryMessage(ClientImpl.java:1229)
>  
> at 
> org.apache.ignite.spi.discovery.tcp.ClientImpl$MessageWorker.body(ClientImpl.java:1199)
>  
> at org.apache.ignite.spi.IgniteSpiThread.run(IgniteSpiThread.java:62) 
> Caused by: java.lang.ClassNotFoundException: 
> c.g.r.cachewrapper.ignite.CacheMissHandlerIgnite
> {code}
> where {{c.g.r.cachewrapper.ignite.CacheMissHandlerIgnite}} is the CacheStore 
> implementation.
> The ostensible reason for the CacheStore serialization is so that clients of 
> a TRANSACTIONAL cache can begin the transaction on the underlying store.  
> The only current solution to this is to add the grid node's CacheStore 
> implementation class definition to the CLASSPATH of the client.  This creates 
> an *undesirable coupling* between server and client.
> ---
> *UPDATE (copy-paste from comment below)*
> This is actually more generic issue. When a new node joins (client or 
> server), all existing cache configurations (which include cache stores) are 
> sent to this node. It then deserializes it during startup which can cause 
> exceptions on clients or servers where cache is not supposed to be deployed 
> as defined by node filter.
> As a solution we can do the following:
> * During discovery, send node filter and cache store factory in binary format 
> along with the cache configuration, not as its parts.
> * On server, check node filter first and deserialize cache configuration and 
> cache store only if it returns true. In case of error, STOP join process (now 
> we just print exception in log and go on, which is very error-prone).
> * On client, do not deserialize cache configuration and cache store until 
> user's code tries to actually use the cache (calls Ignite.cache. If cache is 
> ATOMIC, never deserialize the cache store.



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[jira] [Updated] (IGNITE-1903) Cache configuration is serialized to nodes whether they require it or not

2018-09-25 Thread Nikolay Izhikov (JIRA)


 [ 
https://issues.apache.org/jira/browse/IGNITE-1903?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Nikolay Izhikov updated IGNITE-1903:

Fix Version/s: (was: 2.8)
   2.7

> Cache configuration is serialized to nodes whether they require it or not
> -
>
> Key: IGNITE-1903
> URL: https://issues.apache.org/jira/browse/IGNITE-1903
> Project: Ignite
>  Issue Type: Bug
>Affects Versions: 1.5.0.final
>Reporter: Michael Griggs
>Priority: Major
>  Labels: community, usability
> Fix For: 2.7
>
>
> See User discussion thread:  
> http://apache-ignite-users.70518.x6.nabble.com/CacheStore-being-serialized-to-client-td1931.html
> Brief summary:  When a grid client joins the grid (clientMode=true) it 
> receives a message from the server node(s) on the grid that contains the 
> serialized CacheStore implementation object.  If the client does not have 
> this class on its CLASSPATH (and there is no reason it should, as it is a 
> client) then the de-serialization of this message will fail, causing this 
> exception:
> {code}SEVERE: Failed to unmarshal discovery data for component: 1 
> class org.apache.ignite.IgniteCheckedException: Failed to find class with 
> given class loader for unmarshalling (make sure same versions of all classes 
> are available on all nodes or enable peer-class-loading): 
> sun.misc.Launcher$AppClassLoader@14dad5dc 
> at 
> org.apache.ignite.marshaller.jdk.JdkMarshaller.unmarshal(JdkMarshaller.java:104)
>  
> at 
> org.apache.ignite.marshaller.AbstractMarshaller.unmarshal(AbstractMarshaller.java:67)
>  
> at 
> org.apache.ignite.spi.discovery.tcp.TcpDiscoverySpi.onExchange(TcpDiscoverySpi.java:1529)
>  
> at 
> org.apache.ignite.spi.discovery.tcp.ClientImpl$MessageWorker.processNodeAddFinishedMessage(ClientImpl.java:1317)
>  
> at 
> org.apache.ignite.spi.discovery.tcp.ClientImpl$MessageWorker.processDiscoveryMessage(ClientImpl.java:1229)
>  
> at 
> org.apache.ignite.spi.discovery.tcp.ClientImpl$MessageWorker.body(ClientImpl.java:1199)
>  
> at org.apache.ignite.spi.IgniteSpiThread.run(IgniteSpiThread.java:62) 
> Caused by: java.lang.ClassNotFoundException: 
> c.g.r.cachewrapper.ignite.CacheMissHandlerIgnite
> {code}
> where {{c.g.r.cachewrapper.ignite.CacheMissHandlerIgnite}} is the CacheStore 
> implementation.
> The ostensible reason for the CacheStore serialization is so that clients of 
> a TRANSACTIONAL cache can begin the transaction on the underlying store.  
> The only current solution to this is to add the grid node's CacheStore 
> implementation class definition to the CLASSPATH of the client.  This creates 
> an *undesirable coupling* between server and client.
> ---
> *UPDATE (copy-paste from comment below)*
> This is actually more generic issue. When a new node joins (client or 
> server), all existing cache configurations (which include cache stores) are 
> sent to this node. It then deserializes it during startup which can cause 
> exceptions on clients or servers where cache is not supposed to be deployed 
> as defined by node filter.
> As a solution we can do the following:
> * During discovery, send node filter and cache store factory in binary format 
> along with the cache configuration, not as its parts.
> * On server, check node filter first and deserialize cache configuration and 
> cache store only if it returns true. In case of error, STOP join process (now 
> we just print exception in log and go on, which is very error-prone).
> * On client, do not deserialize cache configuration and cache store until 
> user's code tries to actually use the cache (calls Ignite.cache. If cache is 
> ATOMIC, never deserialize the cache store.



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[jira] [Updated] (IGNITE-1903) Cache configuration is serialized to nodes whether they require it or not

2018-09-24 Thread Nikolay Izhikov (JIRA)


 [ 
https://issues.apache.org/jira/browse/IGNITE-1903?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Nikolay Izhikov updated IGNITE-1903:

Fix Version/s: (was: 2.7)
   2.8

> Cache configuration is serialized to nodes whether they require it or not
> -
>
> Key: IGNITE-1903
> URL: https://issues.apache.org/jira/browse/IGNITE-1903
> Project: Ignite
>  Issue Type: Bug
>Affects Versions: 1.5.0.final
>Reporter: Michael Griggs
>Priority: Major
>  Labels: community, usability
> Fix For: 2.8
>
>
> See User discussion thread:  
> http://apache-ignite-users.70518.x6.nabble.com/CacheStore-being-serialized-to-client-td1931.html
> Brief summary:  When a grid client joins the grid (clientMode=true) it 
> receives a message from the server node(s) on the grid that contains the 
> serialized CacheStore implementation object.  If the client does not have 
> this class on its CLASSPATH (and there is no reason it should, as it is a 
> client) then the de-serialization of this message will fail, causing this 
> exception:
> {code}SEVERE: Failed to unmarshal discovery data for component: 1 
> class org.apache.ignite.IgniteCheckedException: Failed to find class with 
> given class loader for unmarshalling (make sure same versions of all classes 
> are available on all nodes or enable peer-class-loading): 
> sun.misc.Launcher$AppClassLoader@14dad5dc 
> at 
> org.apache.ignite.marshaller.jdk.JdkMarshaller.unmarshal(JdkMarshaller.java:104)
>  
> at 
> org.apache.ignite.marshaller.AbstractMarshaller.unmarshal(AbstractMarshaller.java:67)
>  
> at 
> org.apache.ignite.spi.discovery.tcp.TcpDiscoverySpi.onExchange(TcpDiscoverySpi.java:1529)
>  
> at 
> org.apache.ignite.spi.discovery.tcp.ClientImpl$MessageWorker.processNodeAddFinishedMessage(ClientImpl.java:1317)
>  
> at 
> org.apache.ignite.spi.discovery.tcp.ClientImpl$MessageWorker.processDiscoveryMessage(ClientImpl.java:1229)
>  
> at 
> org.apache.ignite.spi.discovery.tcp.ClientImpl$MessageWorker.body(ClientImpl.java:1199)
>  
> at org.apache.ignite.spi.IgniteSpiThread.run(IgniteSpiThread.java:62) 
> Caused by: java.lang.ClassNotFoundException: 
> c.g.r.cachewrapper.ignite.CacheMissHandlerIgnite
> {code}
> where {{c.g.r.cachewrapper.ignite.CacheMissHandlerIgnite}} is the CacheStore 
> implementation.
> The ostensible reason for the CacheStore serialization is so that clients of 
> a TRANSACTIONAL cache can begin the transaction on the underlying store.  
> The only current solution to this is to add the grid node's CacheStore 
> implementation class definition to the CLASSPATH of the client.  This creates 
> an *undesirable coupling* between server and client.
> ---
> *UPDATE (copy-paste from comment below)*
> This is actually more generic issue. When a new node joins (client or 
> server), all existing cache configurations (which include cache stores) are 
> sent to this node. It then deserializes it during startup which can cause 
> exceptions on clients or servers where cache is not supposed to be deployed 
> as defined by node filter.
> As a solution we can do the following:
> * During discovery, send node filter and cache store factory in binary format 
> along with the cache configuration, not as its parts.
> * On server, check node filter first and deserialize cache configuration and 
> cache store only if it returns true. In case of error, STOP join process (now 
> we just print exception in log and go on, which is very error-prone).
> * On client, do not deserialize cache configuration and cache store until 
> user's code tries to actually use the cache (calls Ignite.cache. If cache is 
> ATOMIC, never deserialize the cache store.



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[jira] [Updated] (IGNITE-1903) Cache configuration is serialized to nodes whether they require it or not

2018-06-26 Thread Dmitriy Pavlov (JIRA)


 [ 
https://issues.apache.org/jira/browse/IGNITE-1903?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Dmitriy Pavlov updated IGNITE-1903:
---
Fix Version/s: (was: 2.6)
   2.7

> Cache configuration is serialized to nodes whether they require it or not
> -
>
> Key: IGNITE-1903
> URL: https://issues.apache.org/jira/browse/IGNITE-1903
> Project: Ignite
>  Issue Type: Bug
>Affects Versions: 1.5.0.final
>Reporter: Michael Griggs
>Priority: Major
>  Labels: community, usability
> Fix For: 2.7
>
>
> See User discussion thread:  
> http://apache-ignite-users.70518.x6.nabble.com/CacheStore-being-serialized-to-client-td1931.html
> Brief summary:  When a grid client joins the grid (clientMode=true) it 
> receives a message from the server node(s) on the grid that contains the 
> serialized CacheStore implementation object.  If the client does not have 
> this class on its CLASSPATH (and there is no reason it should, as it is a 
> client) then the de-serialization of this message will fail, causing this 
> exception:
> {code}SEVERE: Failed to unmarshal discovery data for component: 1 
> class org.apache.ignite.IgniteCheckedException: Failed to find class with 
> given class loader for unmarshalling (make sure same versions of all classes 
> are available on all nodes or enable peer-class-loading): 
> sun.misc.Launcher$AppClassLoader@14dad5dc 
> at 
> org.apache.ignite.marshaller.jdk.JdkMarshaller.unmarshal(JdkMarshaller.java:104)
>  
> at 
> org.apache.ignite.marshaller.AbstractMarshaller.unmarshal(AbstractMarshaller.java:67)
>  
> at 
> org.apache.ignite.spi.discovery.tcp.TcpDiscoverySpi.onExchange(TcpDiscoverySpi.java:1529)
>  
> at 
> org.apache.ignite.spi.discovery.tcp.ClientImpl$MessageWorker.processNodeAddFinishedMessage(ClientImpl.java:1317)
>  
> at 
> org.apache.ignite.spi.discovery.tcp.ClientImpl$MessageWorker.processDiscoveryMessage(ClientImpl.java:1229)
>  
> at 
> org.apache.ignite.spi.discovery.tcp.ClientImpl$MessageWorker.body(ClientImpl.java:1199)
>  
> at org.apache.ignite.spi.IgniteSpiThread.run(IgniteSpiThread.java:62) 
> Caused by: java.lang.ClassNotFoundException: 
> c.g.r.cachewrapper.ignite.CacheMissHandlerIgnite
> {code}
> where {{c.g.r.cachewrapper.ignite.CacheMissHandlerIgnite}} is the CacheStore 
> implementation.
> The ostensible reason for the CacheStore serialization is so that clients of 
> a TRANSACTIONAL cache can begin the transaction on the underlying store.  
> The only current solution to this is to add the grid node's CacheStore 
> implementation class definition to the CLASSPATH of the client.  This creates 
> an *undesirable coupling* between server and client.
> ---
> *UPDATE (copy-paste from comment below)*
> This is actually more generic issue. When a new node joins (client or 
> server), all existing cache configurations (which include cache stores) are 
> sent to this node. It then deserializes it during startup which can cause 
> exceptions on clients or servers where cache is not supposed to be deployed 
> as defined by node filter.
> As a solution we can do the following:
> * During discovery, send node filter and cache store factory in binary format 
> along with the cache configuration, not as its parts.
> * On server, check node filter first and deserialize cache configuration and 
> cache store only if it returns true. In case of error, STOP join process (now 
> we just print exception in log and go on, which is very error-prone).
> * On client, do not deserialize cache configuration and cache store until 
> user's code tries to actually use the cache (calls Ignite.cache. If cache is 
> ATOMIC, never deserialize the cache store.



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[jira] [Updated] (IGNITE-1903) Cache configuration is serialized to nodes whether they require it or not

2018-04-18 Thread Andrey Gura (JIRA)

 [ 
https://issues.apache.org/jira/browse/IGNITE-1903?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Andrey Gura updated IGNITE-1903:

Fix Version/s: (was: 2.5)
   2.6

> Cache configuration is serialized to nodes whether they require it or not
> -
>
> Key: IGNITE-1903
> URL: https://issues.apache.org/jira/browse/IGNITE-1903
> Project: Ignite
>  Issue Type: Bug
>Affects Versions: 1.5.0.final
>Reporter: Michael Griggs
>Assignee: Vladimir Ozerov
>Priority: Major
>  Labels: community, usability
> Fix For: 2.6
>
>
> See User discussion thread:  
> http://apache-ignite-users.70518.x6.nabble.com/CacheStore-being-serialized-to-client-td1931.html
> Brief summary:  When a grid client joins the grid (clientMode=true) it 
> receives a message from the server node(s) on the grid that contains the 
> serialized CacheStore implementation object.  If the client does not have 
> this class on its CLASSPATH (and there is no reason it should, as it is a 
> client) then the de-serialization of this message will fail, causing this 
> exception:
> {code}SEVERE: Failed to unmarshal discovery data for component: 1 
> class org.apache.ignite.IgniteCheckedException: Failed to find class with 
> given class loader for unmarshalling (make sure same versions of all classes 
> are available on all nodes or enable peer-class-loading): 
> sun.misc.Launcher$AppClassLoader@14dad5dc 
> at 
> org.apache.ignite.marshaller.jdk.JdkMarshaller.unmarshal(JdkMarshaller.java:104)
>  
> at 
> org.apache.ignite.marshaller.AbstractMarshaller.unmarshal(AbstractMarshaller.java:67)
>  
> at 
> org.apache.ignite.spi.discovery.tcp.TcpDiscoverySpi.onExchange(TcpDiscoverySpi.java:1529)
>  
> at 
> org.apache.ignite.spi.discovery.tcp.ClientImpl$MessageWorker.processNodeAddFinishedMessage(ClientImpl.java:1317)
>  
> at 
> org.apache.ignite.spi.discovery.tcp.ClientImpl$MessageWorker.processDiscoveryMessage(ClientImpl.java:1229)
>  
> at 
> org.apache.ignite.spi.discovery.tcp.ClientImpl$MessageWorker.body(ClientImpl.java:1199)
>  
> at org.apache.ignite.spi.IgniteSpiThread.run(IgniteSpiThread.java:62) 
> Caused by: java.lang.ClassNotFoundException: 
> c.g.r.cachewrapper.ignite.CacheMissHandlerIgnite
> {code}
> where {{c.g.r.cachewrapper.ignite.CacheMissHandlerIgnite}} is the CacheStore 
> implementation.
> The ostensible reason for the CacheStore serialization is so that clients of 
> a TRANSACTIONAL cache can begin the transaction on the underlying store.  
> The only current solution to this is to add the grid node's CacheStore 
> implementation class definition to the CLASSPATH of the client.  This creates 
> an *undesirable coupling* between server and client.
> ---
> *UPDATE (copy-paste from comment below)*
> This is actually more generic issue. When a new node joins (client or 
> server), all existing cache configurations (which include cache stores) are 
> sent to this node. It then deserializes it during startup which can cause 
> exceptions on clients or servers where cache is not supposed to be deployed 
> as defined by node filter.
> As a solution we can do the following:
> * During discovery, send node filter and cache store factory in binary format 
> along with the cache configuration, not as its parts.
> * On server, check node filter first and deserialize cache configuration and 
> cache store only if it returns true. In case of error, STOP join process (now 
> we just print exception in log and go on, which is very error-prone).
> * On client, do not deserialize cache configuration and cache store until 
> user's code tries to actually use the cache (calls Ignite.cache. If cache is 
> ATOMIC, never deserialize the cache store.



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[jira] [Updated] (IGNITE-1903) Cache configuration is serialized to nodes whether they require it or not

2018-01-17 Thread Vladimir Ozerov (JIRA)

 [ 
https://issues.apache.org/jira/browse/IGNITE-1903?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Vladimir Ozerov updated IGNITE-1903:

Fix Version/s: (was: 2.4)
   2.5

> Cache configuration is serialized to nodes whether they require it or not
> -
>
> Key: IGNITE-1903
> URL: https://issues.apache.org/jira/browse/IGNITE-1903
> Project: Ignite
>  Issue Type: Bug
>Affects Versions: 1.5.0.final
>Reporter: Michael Griggs
>Assignee: Vladimir Ozerov
>Priority: Major
>  Labels: community, usability
> Fix For: 2.5
>
>
> See User discussion thread:  
> http://apache-ignite-users.70518.x6.nabble.com/CacheStore-being-serialized-to-client-td1931.html
> Brief summary:  When a grid client joins the grid (clientMode=true) it 
> receives a message from the server node(s) on the grid that contains the 
> serialized CacheStore implementation object.  If the client does not have 
> this class on its CLASSPATH (and there is no reason it should, as it is a 
> client) then the de-serialization of this message will fail, causing this 
> exception:
> {code}SEVERE: Failed to unmarshal discovery data for component: 1 
> class org.apache.ignite.IgniteCheckedException: Failed to find class with 
> given class loader for unmarshalling (make sure same versions of all classes 
> are available on all nodes or enable peer-class-loading): 
> sun.misc.Launcher$AppClassLoader@14dad5dc 
> at 
> org.apache.ignite.marshaller.jdk.JdkMarshaller.unmarshal(JdkMarshaller.java:104)
>  
> at 
> org.apache.ignite.marshaller.AbstractMarshaller.unmarshal(AbstractMarshaller.java:67)
>  
> at 
> org.apache.ignite.spi.discovery.tcp.TcpDiscoverySpi.onExchange(TcpDiscoverySpi.java:1529)
>  
> at 
> org.apache.ignite.spi.discovery.tcp.ClientImpl$MessageWorker.processNodeAddFinishedMessage(ClientImpl.java:1317)
>  
> at 
> org.apache.ignite.spi.discovery.tcp.ClientImpl$MessageWorker.processDiscoveryMessage(ClientImpl.java:1229)
>  
> at 
> org.apache.ignite.spi.discovery.tcp.ClientImpl$MessageWorker.body(ClientImpl.java:1199)
>  
> at org.apache.ignite.spi.IgniteSpiThread.run(IgniteSpiThread.java:62) 
> Caused by: java.lang.ClassNotFoundException: 
> c.g.r.cachewrapper.ignite.CacheMissHandlerIgnite
> {code}
> where {{c.g.r.cachewrapper.ignite.CacheMissHandlerIgnite}} is the CacheStore 
> implementation.
> The ostensible reason for the CacheStore serialization is so that clients of 
> a TRANSACTIONAL cache can begin the transaction on the underlying store.  
> The only current solution to this is to add the grid node's CacheStore 
> implementation class definition to the CLASSPATH of the client.  This creates 
> an *undesirable coupling* between server and client.
> ---
> *UPDATE (copy-paste from comment below)*
> This is actually more generic issue. When a new node joins (client or 
> server), all existing cache configurations (which include cache stores) are 
> sent to this node. It then deserializes it during startup which can cause 
> exceptions on clients or servers where cache is not supposed to be deployed 
> as defined by node filter.
> As a solution we can do the following:
> * During discovery, send node filter and cache store factory in binary format 
> along with the cache configuration, not as its parts.
> * On server, check node filter first and deserialize cache configuration and 
> cache store only if it returns true. In case of error, STOP join process (now 
> we just print exception in log and go on, which is very error-prone).
> * On client, do not deserialize cache configuration and cache store until 
> user's code tries to actually use the cache (calls Ignite.cache. If cache is 
> ATOMIC, never deserialize the cache store.



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[jira] [Updated] (IGNITE-1903) Cache configuration is serialized to nodes whether they require it or not

2017-11-08 Thread Dmitriy Setrakyan (JIRA)

 [ 
https://issues.apache.org/jira/browse/IGNITE-1903?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Dmitriy Setrakyan updated IGNITE-1903:
--
Fix Version/s: 2.4

> Cache configuration is serialized to nodes whether they require it or not
> -
>
> Key: IGNITE-1903
> URL: https://issues.apache.org/jira/browse/IGNITE-1903
> Project: Ignite
>  Issue Type: Bug
>Affects Versions: 1.5.0.final
>Reporter: Michael Griggs
>  Labels: community, usability
> Fix For: 2.4
>
>
> See User discussion thread:  
> http://apache-ignite-users.70518.x6.nabble.com/CacheStore-being-serialized-to-client-td1931.html
> Brief summary:  When a grid client joins the grid (clientMode=true) it 
> receives a message from the server node(s) on the grid that contains the 
> serialized CacheStore implementation object.  If the client does not have 
> this class on its CLASSPATH (and there is no reason it should, as it is a 
> client) then the de-serialization of this message will fail, causing this 
> exception:
> {code}SEVERE: Failed to unmarshal discovery data for component: 1 
> class org.apache.ignite.IgniteCheckedException: Failed to find class with 
> given class loader for unmarshalling (make sure same versions of all classes 
> are available on all nodes or enable peer-class-loading): 
> sun.misc.Launcher$AppClassLoader@14dad5dc 
> at 
> org.apache.ignite.marshaller.jdk.JdkMarshaller.unmarshal(JdkMarshaller.java:104)
>  
> at 
> org.apache.ignite.marshaller.AbstractMarshaller.unmarshal(AbstractMarshaller.java:67)
>  
> at 
> org.apache.ignite.spi.discovery.tcp.TcpDiscoverySpi.onExchange(TcpDiscoverySpi.java:1529)
>  
> at 
> org.apache.ignite.spi.discovery.tcp.ClientImpl$MessageWorker.processNodeAddFinishedMessage(ClientImpl.java:1317)
>  
> at 
> org.apache.ignite.spi.discovery.tcp.ClientImpl$MessageWorker.processDiscoveryMessage(ClientImpl.java:1229)
>  
> at 
> org.apache.ignite.spi.discovery.tcp.ClientImpl$MessageWorker.body(ClientImpl.java:1199)
>  
> at org.apache.ignite.spi.IgniteSpiThread.run(IgniteSpiThread.java:62) 
> Caused by: java.lang.ClassNotFoundException: 
> c.g.r.cachewrapper.ignite.CacheMissHandlerIgnite
> {code}
> where {{c.g.r.cachewrapper.ignite.CacheMissHandlerIgnite}} is the CacheStore 
> implementation.
> The ostensible reason for the CacheStore serialization is so that clients of 
> a TRANSACTIONAL cache can begin the transaction on the underlying store.  
> The only current solution to this is to add the grid node's CacheStore 
> implementation class definition to the CLASSPATH of the client.  This creates 
> an *undesirable coupling* between server and client.
> ---
> *UPDATE (copy-paste from comment below)*
> This is actually more generic issue. When a new node joins (client or 
> server), all existing cache configurations (which include cache stores) are 
> sent to this node. It then deserializes it during startup which can cause 
> exceptions on clients or servers where cache is not supposed to be deployed 
> as defined by node filter.
> As a solution we can do the following:
> * During discovery, send node filter and cache store factory in binary format 
> along with the cache configuration, not as its parts.
> * On server, check node filter first and deserialize cache configuration and 
> cache store only if it returns true. In case of error, STOP join process (now 
> we just print exception in log and go on, which is very error-prone).
> * On client, do not deserialize cache configuration and cache store until 
> user's code tries to actually use the cache (calls Ignite.cache. If cache is 
> ATOMIC, never deserialize the cache store.



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[jira] [Updated] (IGNITE-1903) Cache configuration is serialized to nodes whether they require it or not

2017-11-08 Thread Denis Magda (JIRA)

 [ 
https://issues.apache.org/jira/browse/IGNITE-1903?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Denis Magda updated IGNITE-1903:

Labels: community usability  (was: community)

> Cache configuration is serialized to nodes whether they require it or not
> -
>
> Key: IGNITE-1903
> URL: https://issues.apache.org/jira/browse/IGNITE-1903
> Project: Ignite
>  Issue Type: Bug
>Affects Versions: 1.5.0.final
>Reporter: Michael Griggs
>  Labels: community, usability
>
> See User discussion thread:  
> http://apache-ignite-users.70518.x6.nabble.com/CacheStore-being-serialized-to-client-td1931.html
> Brief summary:  When a grid client joins the grid (clientMode=true) it 
> receives a message from the server node(s) on the grid that contains the 
> serialized CacheStore implementation object.  If the client does not have 
> this class on its CLASSPATH (and there is no reason it should, as it is a 
> client) then the de-serialization of this message will fail, causing this 
> exception:
> {code}SEVERE: Failed to unmarshal discovery data for component: 1 
> class org.apache.ignite.IgniteCheckedException: Failed to find class with 
> given class loader for unmarshalling (make sure same versions of all classes 
> are available on all nodes or enable peer-class-loading): 
> sun.misc.Launcher$AppClassLoader@14dad5dc 
> at 
> org.apache.ignite.marshaller.jdk.JdkMarshaller.unmarshal(JdkMarshaller.java:104)
>  
> at 
> org.apache.ignite.marshaller.AbstractMarshaller.unmarshal(AbstractMarshaller.java:67)
>  
> at 
> org.apache.ignite.spi.discovery.tcp.TcpDiscoverySpi.onExchange(TcpDiscoverySpi.java:1529)
>  
> at 
> org.apache.ignite.spi.discovery.tcp.ClientImpl$MessageWorker.processNodeAddFinishedMessage(ClientImpl.java:1317)
>  
> at 
> org.apache.ignite.spi.discovery.tcp.ClientImpl$MessageWorker.processDiscoveryMessage(ClientImpl.java:1229)
>  
> at 
> org.apache.ignite.spi.discovery.tcp.ClientImpl$MessageWorker.body(ClientImpl.java:1199)
>  
> at org.apache.ignite.spi.IgniteSpiThread.run(IgniteSpiThread.java:62) 
> Caused by: java.lang.ClassNotFoundException: 
> c.g.r.cachewrapper.ignite.CacheMissHandlerIgnite
> {code}
> where {{c.g.r.cachewrapper.ignite.CacheMissHandlerIgnite}} is the CacheStore 
> implementation.
> The ostensible reason for the CacheStore serialization is so that clients of 
> a TRANSACTIONAL cache can begin the transaction on the underlying store.  
> The only current solution to this is to add the grid node's CacheStore 
> implementation class definition to the CLASSPATH of the client.  This creates 
> an *undesirable coupling* between server and client.
> ---
> *UPDATE (copy-paste from comment below)*
> This is actually more generic issue. When a new node joins (client or 
> server), all existing cache configurations (which include cache stores) are 
> sent to this node. It then deserializes it during startup which can cause 
> exceptions on clients or servers where cache is not supposed to be deployed 
> as defined by node filter.
> As a solution we can do the following:
> * During discovery, send node filter and cache store factory in binary format 
> along with the cache configuration, not as its parts.
> * On server, check node filter first and deserialize cache configuration and 
> cache store only if it returns true. In case of error, STOP join process (now 
> we just print exception in log and go on, which is very error-prone).
> * On client, do not deserialize cache configuration and cache store until 
> user's code tries to actually use the cache (calls Ignite.cache. If cache is 
> ATOMIC, never deserialize the cache store.



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[jira] [Updated] (IGNITE-1903) Cache configuration is serialized to nodes whether they require it or not

2017-09-25 Thread Vladimir Ozerov (JIRA)

 [ 
https://issues.apache.org/jira/browse/IGNITE-1903?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Vladimir Ozerov updated IGNITE-1903:

Fix Version/s: (was: 2.3)

> Cache configuration is serialized to nodes whether they require it or not
> -
>
> Key: IGNITE-1903
> URL: https://issues.apache.org/jira/browse/IGNITE-1903
> Project: Ignite
>  Issue Type: Bug
>Affects Versions: 1.5.0.final
>Reporter: Michael Griggs
>  Labels: community
>
> See User discussion thread:  
> http://apache-ignite-users.70518.x6.nabble.com/CacheStore-being-serialized-to-client-td1931.html
> Brief summary:  When a grid client joins the grid (clientMode=true) it 
> receives a message from the server node(s) on the grid that contains the 
> serialized CacheStore implementation object.  If the client does not have 
> this class on its CLASSPATH (and there is no reason it should, as it is a 
> client) then the de-serialization of this message will fail, causing this 
> exception:
> {code}SEVERE: Failed to unmarshal discovery data for component: 1 
> class org.apache.ignite.IgniteCheckedException: Failed to find class with 
> given class loader for unmarshalling (make sure same versions of all classes 
> are available on all nodes or enable peer-class-loading): 
> sun.misc.Launcher$AppClassLoader@14dad5dc 
> at 
> org.apache.ignite.marshaller.jdk.JdkMarshaller.unmarshal(JdkMarshaller.java:104)
>  
> at 
> org.apache.ignite.marshaller.AbstractMarshaller.unmarshal(AbstractMarshaller.java:67)
>  
> at 
> org.apache.ignite.spi.discovery.tcp.TcpDiscoverySpi.onExchange(TcpDiscoverySpi.java:1529)
>  
> at 
> org.apache.ignite.spi.discovery.tcp.ClientImpl$MessageWorker.processNodeAddFinishedMessage(ClientImpl.java:1317)
>  
> at 
> org.apache.ignite.spi.discovery.tcp.ClientImpl$MessageWorker.processDiscoveryMessage(ClientImpl.java:1229)
>  
> at 
> org.apache.ignite.spi.discovery.tcp.ClientImpl$MessageWorker.body(ClientImpl.java:1199)
>  
> at org.apache.ignite.spi.IgniteSpiThread.run(IgniteSpiThread.java:62) 
> Caused by: java.lang.ClassNotFoundException: 
> c.g.r.cachewrapper.ignite.CacheMissHandlerIgnite
> {code}
> where {{c.g.r.cachewrapper.ignite.CacheMissHandlerIgnite}} is the CacheStore 
> implementation.
> The ostensible reason for the CacheStore serialization is so that clients of 
> a TRANSACTIONAL cache can begin the transaction on the underlying store.  
> The only current solution to this is to add the grid node's CacheStore 
> implementation class definition to the CLASSPATH of the client.  This creates 
> an *undesirable coupling* between server and client.
> ---
> *UPDATE (copy-paste from comment below)*
> This is actually more generic issue. When a new node joins (client or 
> server), all existing cache configurations (which include cache stores) are 
> sent to this node. It then deserializes it during startup which can cause 
> exceptions on clients or servers where cache is not supposed to be deployed 
> as defined by node filter.
> As a solution we can do the following:
> * During discovery, send node filter and cache store factory in binary format 
> along with the cache configuration, not as its parts.
> * On server, check node filter first and deserialize cache configuration and 
> cache store only if it returns true. In case of error, STOP join process (now 
> we just print exception in log and go on, which is very error-prone).
> * On client, do not deserialize cache configuration and cache store until 
> user's code tries to actually use the cache (calls Ignite.cache. If cache is 
> ATOMIC, never deserialize the cache store.



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[jira] [Updated] (IGNITE-1903) Cache configuration is serialized to nodes whether they require it or not

2017-07-10 Thread Vladimir Ozerov (JIRA)

 [ 
https://issues.apache.org/jira/browse/IGNITE-1903?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Vladimir Ozerov updated IGNITE-1903:

Fix Version/s: (was: 2.1)
   2.2

> Cache configuration is serialized to nodes whether they require it or not
> -
>
> Key: IGNITE-1903
> URL: https://issues.apache.org/jira/browse/IGNITE-1903
> Project: Ignite
>  Issue Type: Bug
>Affects Versions: 1.5.0.final
>Reporter: Michael Griggs
>  Labels: community
> Fix For: 2.2
>
>
> See User discussion thread:  
> http://apache-ignite-users.70518.x6.nabble.com/CacheStore-being-serialized-to-client-td1931.html
> Brief summary:  When a grid client joins the grid (clientMode=true) it 
> receives a message from the server node(s) on the grid that contains the 
> serialized CacheStore implementation object.  If the client does not have 
> this class on its CLASSPATH (and there is no reason it should, as it is a 
> client) then the de-serialization of this message will fail, causing this 
> exception:
> {code}SEVERE: Failed to unmarshal discovery data for component: 1 
> class org.apache.ignite.IgniteCheckedException: Failed to find class with 
> given class loader for unmarshalling (make sure same versions of all classes 
> are available on all nodes or enable peer-class-loading): 
> sun.misc.Launcher$AppClassLoader@14dad5dc 
> at 
> org.apache.ignite.marshaller.jdk.JdkMarshaller.unmarshal(JdkMarshaller.java:104)
>  
> at 
> org.apache.ignite.marshaller.AbstractMarshaller.unmarshal(AbstractMarshaller.java:67)
>  
> at 
> org.apache.ignite.spi.discovery.tcp.TcpDiscoverySpi.onExchange(TcpDiscoverySpi.java:1529)
>  
> at 
> org.apache.ignite.spi.discovery.tcp.ClientImpl$MessageWorker.processNodeAddFinishedMessage(ClientImpl.java:1317)
>  
> at 
> org.apache.ignite.spi.discovery.tcp.ClientImpl$MessageWorker.processDiscoveryMessage(ClientImpl.java:1229)
>  
> at 
> org.apache.ignite.spi.discovery.tcp.ClientImpl$MessageWorker.body(ClientImpl.java:1199)
>  
> at org.apache.ignite.spi.IgniteSpiThread.run(IgniteSpiThread.java:62) 
> Caused by: java.lang.ClassNotFoundException: 
> c.g.r.cachewrapper.ignite.CacheMissHandlerIgnite
> {code}
> where {{c.g.r.cachewrapper.ignite.CacheMissHandlerIgnite}} is the CacheStore 
> implementation.
> The ostensible reason for the CacheStore serialization is so that clients of 
> a TRANSACTIONAL cache can begin the transaction on the underlying store.  
> The only current solution to this is to add the grid node's CacheStore 
> implementation class definition to the CLASSPATH of the client.  This creates 
> an *undesirable coupling* between server and client.
> ---
> *UPDATE (copy-paste from comment below)*
> This is actually more generic issue. When a new node joins (client or 
> server), all existing cache configurations (which include cache stores) are 
> sent to this node. It then deserializes it during startup which can cause 
> exceptions on clients or servers where cache is not supposed to be deployed 
> as defined by node filter.
> As a solution we can do the following:
> * During discovery, send node filter and cache store factory in binary format 
> along with the cache configuration, not as its parts.
> * On server, check node filter first and deserialize cache configuration and 
> cache store only if it returns true. In case of error, STOP join process (now 
> we just print exception in log and go on, which is very error-prone).
> * On client, do not deserialize cache configuration and cache store until 
> user's code tries to actually use the cache (calls Ignite.cache. If cache is 
> ATOMIC, never deserialize the cache store.



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[jira] [Updated] (IGNITE-1903) Cache configuration is serialized to nodes whether they require it or not

2017-04-11 Thread Vladimir Ozerov (JIRA)

 [ 
https://issues.apache.org/jira/browse/IGNITE-1903?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Vladimir Ozerov updated IGNITE-1903:

Fix Version/s: (was: 2.0)
   2.1

> Cache configuration is serialized to nodes whether they require it or not
> -
>
> Key: IGNITE-1903
> URL: https://issues.apache.org/jira/browse/IGNITE-1903
> Project: Ignite
>  Issue Type: Bug
>Affects Versions: 1.5.0.final
>Reporter: Michael Griggs
>  Labels: community
> Fix For: 2.1
>
>
> See User discussion thread:  
> http://apache-ignite-users.70518.x6.nabble.com/CacheStore-being-serialized-to-client-td1931.html
> Brief summary:  When a grid client joins the grid (clientMode=true) it 
> receives a message from the server node(s) on the grid that contains the 
> serialized CacheStore implementation object.  If the client does not have 
> this class on its CLASSPATH (and there is no reason it should, as it is a 
> client) then the de-serialization of this message will fail, causing this 
> exception:
> {code}SEVERE: Failed to unmarshal discovery data for component: 1 
> class org.apache.ignite.IgniteCheckedException: Failed to find class with 
> given class loader for unmarshalling (make sure same versions of all classes 
> are available on all nodes or enable peer-class-loading): 
> sun.misc.Launcher$AppClassLoader@14dad5dc 
> at 
> org.apache.ignite.marshaller.jdk.JdkMarshaller.unmarshal(JdkMarshaller.java:104)
>  
> at 
> org.apache.ignite.marshaller.AbstractMarshaller.unmarshal(AbstractMarshaller.java:67)
>  
> at 
> org.apache.ignite.spi.discovery.tcp.TcpDiscoverySpi.onExchange(TcpDiscoverySpi.java:1529)
>  
> at 
> org.apache.ignite.spi.discovery.tcp.ClientImpl$MessageWorker.processNodeAddFinishedMessage(ClientImpl.java:1317)
>  
> at 
> org.apache.ignite.spi.discovery.tcp.ClientImpl$MessageWorker.processDiscoveryMessage(ClientImpl.java:1229)
>  
> at 
> org.apache.ignite.spi.discovery.tcp.ClientImpl$MessageWorker.body(ClientImpl.java:1199)
>  
> at org.apache.ignite.spi.IgniteSpiThread.run(IgniteSpiThread.java:62) 
> Caused by: java.lang.ClassNotFoundException: 
> c.g.r.cachewrapper.ignite.CacheMissHandlerIgnite
> {code}
> where {{c.g.r.cachewrapper.ignite.CacheMissHandlerIgnite}} is the CacheStore 
> implementation.
> The ostensible reason for the CacheStore serialization is so that clients of 
> a TRANSACTIONAL cache can begin the transaction on the underlying store.  
> The only current solution to this is to add the grid node's CacheStore 
> implementation class definition to the CLASSPATH of the client.  This creates 
> an *undesirable coupling* between server and client.
> ---
> *UPDATE (copy-paste from comment below)*
> This is actually more generic issue. When a new node joins (client or 
> server), all existing cache configurations (which include cache stores) are 
> sent to this node. It then deserializes it during startup which can cause 
> exceptions on clients or servers where cache is not supposed to be deployed 
> as defined by node filter.
> As a solution we can do the following:
> * During discovery, send node filter and cache store factory in binary format 
> along with the cache configuration, not as its parts.
> * On server, check node filter first and deserialize cache configuration and 
> cache store only if it returns true. In case of error, STOP join process (now 
> we just print exception in log and go on, which is very error-prone).
> * On client, do not deserialize cache configuration and cache store until 
> user's code tries to actually use the cache (calls Ignite.cache. If cache is 
> ATOMIC, never deserialize the cache store.



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[jira] [Updated] (IGNITE-1903) Cache configuration is serialized to nodes whether they require it or not

2017-02-22 Thread Valentin Kulichenko (JIRA)

 [ 
https://issues.apache.org/jira/browse/IGNITE-1903?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Valentin Kulichenko updated IGNITE-1903:

Summary: Cache configuration is serialized to nodes whether they require it 
or not  (was: CacheStore implementation is serialized to nodes whether they 
require it or not)

> Cache configuration is serialized to nodes whether they require it or not
> -
>
> Key: IGNITE-1903
> URL: https://issues.apache.org/jira/browse/IGNITE-1903
> Project: Ignite
>  Issue Type: Bug
>Affects Versions: 1.5.0.final
>Reporter: Michael Griggs
>  Labels: community
> Fix For: 2.0
>
>
> See User discussion thread:  
> http://apache-ignite-users.70518.x6.nabble.com/CacheStore-being-serialized-to-client-td1931.html
> Brief summary:  When a grid client joins the grid (clientMode=true) it 
> receives a message from the server node(s) on the grid that contains the 
> serialized CacheStore implementation object.  If the client does not have 
> this class on its CLASSPATH (and there is no reason it should, as it is a 
> client) then the de-serialization of this message will fail, causing this 
> exception:
> {code}SEVERE: Failed to unmarshal discovery data for component: 1 
> class org.apache.ignite.IgniteCheckedException: Failed to find class with 
> given class loader for unmarshalling (make sure same versions of all classes 
> are available on all nodes or enable peer-class-loading): 
> sun.misc.Launcher$AppClassLoader@14dad5dc 
> at 
> org.apache.ignite.marshaller.jdk.JdkMarshaller.unmarshal(JdkMarshaller.java:104)
>  
> at 
> org.apache.ignite.marshaller.AbstractMarshaller.unmarshal(AbstractMarshaller.java:67)
>  
> at 
> org.apache.ignite.spi.discovery.tcp.TcpDiscoverySpi.onExchange(TcpDiscoverySpi.java:1529)
>  
> at 
> org.apache.ignite.spi.discovery.tcp.ClientImpl$MessageWorker.processNodeAddFinishedMessage(ClientImpl.java:1317)
>  
> at 
> org.apache.ignite.spi.discovery.tcp.ClientImpl$MessageWorker.processDiscoveryMessage(ClientImpl.java:1229)
>  
> at 
> org.apache.ignite.spi.discovery.tcp.ClientImpl$MessageWorker.body(ClientImpl.java:1199)
>  
> at org.apache.ignite.spi.IgniteSpiThread.run(IgniteSpiThread.java:62) 
> Caused by: java.lang.ClassNotFoundException: 
> c.g.r.cachewrapper.ignite.CacheMissHandlerIgnite
> {code}
> where {{c.g.r.cachewrapper.ignite.CacheMissHandlerIgnite}} is the CacheStore 
> implementation.
> The ostensible reason for the CacheStore serialization is so that clients of 
> a TRANSACTIONAL cache can begin the transaction on the underlying store.  
> The only current solution to this is to add the grid node's CacheStore 
> implementation class definition to the CLASSPATH of the client.  This creates 
> an *undesirable coupling* between server and client.
> ---
> *UPDATE (copy-paste from comment below)*
> This is actually more generic issue. When a new node joins (client or 
> server), all existing cache configurations (which include cache stores) are 
> sent to this node. It then deserializes it during startup which can cause 
> exceptions on clients or servers where cache is not supposed to be deployed 
> as defined by node filter.
> As a solution we can do the following:
> * During discovery, send node filter and cache store factory in binary format 
> along with the cache configuration, not as its parts.
> * On server, check node filter first and deserialize cache configuration and 
> cache store only if it returns true. In case of error, STOP join process (now 
> we just print exception in log and go on, which is very error-prone).
> * On client, do not deserialize cache configuration and cache store until 
> user's code tries to actually use the cache (calls Ignite.cache. If cache is 
> ATOMIC, never deserialize the cache store.



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