IgniteAtomicSequence
Hi All, What is the consequence of data rebalancing across nodes as far as IgniteAtomicSequence and the reserve on each node is concerned? For example, if the last sequence number is 6000 in one node and the record moves to a node whose last sequence number is 1000? Do the reserves on both nodes get recalculated? Are there best practices for generating and using these sequences? Is IgniteAtomicSequence the right approach if I want to keep track of the records on each node for a partitioned cache? thanks.
Re: Execution of local SqlFieldsQuery on client node disallowed
Hello Ilya Yes, it happens all the time. It seems ignite forces the "client" establishing the jdbc connection into a client mode, even if I set client=false. The sample code and config are attached. The question is how do I force JDBC connections from a server node. thanks. On Fri, Oct 23, 2020 at 10:31 AM Ilya Kasnacheev wrote: > Hello! > > Does this happen every time? If so, do you have a reproducer for the issue? > > Regards, > -- > Ilya Kasnacheev > > > пт, 23 окт. 2020 г. в 13:06, narges saleh : > >> Denis -- Just checked. I do specify my services to be deployed on server >> nodes only. Why would ignite think that I am running my code on a client >> node? >> >> On Fri, Oct 23, 2020 at 3:50 AM narges saleh >> wrote: >> >>> Hi Denis >>> What would make an ignite node a client node? The code is invoked via an >>> ignite service deployed on each node and I am not setting the client mode >>> anywhere. The code sets the jdbc connection to local and tries to execute a >>> sql code on the node in some interval. By the way, I didn't know one could >>> deploy a service on client nodes. Do I need to explicitly mark a node as a >>> server node when deploying a service? >>> thanks >>> >>> On Thu, Oct 22, 2020 at 9:42 PM Denis Magda wrote: >>> The error message says you're attempting to run the query on a client node. If that's the case (if the service is deployed on the client node), then the local flag has no effect because client nodes don't keep your data locally but rather consume it from servers. - Denis On Thu, Oct 22, 2020 at 6:26 PM narges saleh wrote: > Hi All, > I am trying to execute a sql query via a JDBC connection on the > service node (the query is run via a service), but I am getting *Execution > of local SqlFieldsQuery on client node disallowed.* > *The JDBC connection has the option local=true as I want to run the > query on the data on the local node only.* > *Any idea why I am getting this error?* > > *thanks.* > JDBCQuery.java Description: Binary data http://www.springframework.org/schema/beans; xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance; xmlns:util="http://www.springframework.org/schema/util; xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd;> firstName orgName 127.0.0.1:47550..47551
Ignite Client Node Stopped With Out Of Memory
Hi, We are using Apache Ignite 2.7.0 binary and servers are using Linux OS & app servers are using Windows OS.We are using Apache Ignite .Net APIs. Recently we have noticed that our application is stopping due to a client node throwing Out Of Memory error which we have seen in ignite client node log file. App server has 32 GB RAM & We are specifying JVM Heap = 8 GB & Data Region Min = 1 GB & Max = 10 GB. *Exception:* class org.apache.ignite.IgniteException: Platform error:System.OutOfMemoryException: Insufficient memory to continue the execution of the program. at System.Runtime.InteropServices.Marshal.ReAllocHGlobal(IntPtr pv, IntPtr cb) at Apache.Ignite.Core.Impl.Memory.PlatformMemoryUtils.ReallocatePooled(Int64 memPtr, Int32 cap) at Apache.Ignite.Core.Impl.Unmanaged.UnmanagedCallbacks.MemoryReallocate(Int64 memPtr, Int64 cap, Int64 unused, Void* arg) at Apache.Ignite.Core.Impl.Unmanaged.UnmanagedCallbacks.InLongLongLongObjectOutLong(Int32 type, Int64 val1, Int64 val2, Int64 val3, IntPtr arg) at org.apache.ignite.internal.processors.platform.PlatformProcessorImpl.loggerLog(PlatformProcessorImpl.java:404) at org.apache.ignite.internal.processors.platform.PlatformProcessorImpl.processInStreamOutLong(PlatformProcessorImpl.java:460) at org.apache.ignite.internal.processors.platform.PlatformProcessorImpl.processInStreamOutLong(PlatformProcessorImpl.java:512) at org.apache.ignite.internal.processors.platform.PlatformTargetProxyImpl.inStreamOutLong(PlatformTargetProxyImpl.java:67) at org.apache.ignite.internal.processors.platform.callback.PlatformCallbackUtils.inLongLongLongObjectOutLong(Native Method) at org.apache.ignite.internal.processors.platform.callback.PlatformCallbackGateway.memoryReallocate(PlatformCallbackGateway.java:840) at org.apache.ignite.internal.processors.platform.memory.PlatformExternalMemory.reallocate(PlatformExternalMemory.java:48) at org.apache.ignite.internal.processors.platform.memory.PlatformOutputStreamImpl.ensureCapacity(PlatformOutputStreamImpl.java:305) at org.apache.ignite.internal.processors.platform.memory.PlatformOutputStreamImpl.unsafeEnsure(PlatformOutputStreamImpl.java:222) at org.apache.ignite.internal.binary.BinaryWriterExImpl.doWriteBinaryObject(BinaryWriterExImpl.java:962) at org.apache.ignite.internal.binary.BinaryClassDescriptor.write(BinaryClassDescriptor.java:744) at org.apache.ignite.internal.binary.BinaryWriterExImpl.marshal0(BinaryWriterExImpl.java:223) at org.apache.ignite.internal.binary.BinaryWriterExImpl.marshal(BinaryWriterExImpl.java:164) at org.apache.ignite.internal.binary.BinaryWriterExImpl.marshal(BinaryWriterExImpl.java:151) at org.apache.ignite.internal.binary.BinaryWriterExImpl.writeObjectDetached(BinaryWriterExImpl.java:1506) at org.apache.ignite.internal.processors.platform.cache.query.PlatformQueryCursor.write(PlatformQueryCursor.java:43) at org.apache.ignite.internal.processors.platform.cache.query.PlatformQueryCursor.write(PlatformQueryCursor.java:28) at org.apache.ignite.internal.processors.platform.cache.query.PlatformAbstractQueryCursor.processOutStream(PlatformAbstractQueryCursor.java:85) at org.apache.ignite.internal.processors.platform.PlatformTargetProxyImpl.outStream(PlatformTargetProxyImpl.java:93) Can please suggest what is the root cause for the above issue? Thanks & Regards,
