Details
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Bug
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Status: Closed
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Major
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Resolution: Fixed
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None
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None
Description
When starting up a locator has no knowledge of cache servers that might be in the distributed system but it will process server-location requests from clients and return them incorrect information until it receives load info from the servers.
In one test I saw a locator be ejected from the distributed system. When it auto-reconnected some cache clients asked it for server locations and, though there were 6 cache servers available the clients got this exception:
com.gemstone.gemfire.cache.client.NoAvailableServersException
at com.gemstone.gemfire.cache.client.internal.pooling.ConnectionManagerImpl.borrowConnection(ConnectionManagerImpl.java:257)
at com.gemstone.gemfire.cache.client.internal.OpExecutorImpl.getNextOpServerLocation(OpExecutorImpl.java:318)
at com.gemstone.gemfire.cache.client.internal.OpExecutorImpl.execute(OpExecutorImpl.java:130)
at com.gemstone.gemfire.cache.client.internal.OpExecutorImpl.execute(OpExecutorImpl.java:123)
at com.gemstone.gemfire.cache.client.internal.PoolImpl.execute(PoolImpl.java:714)
at com.gemstone.gemfire.cache.client.internal.GetOp.execute(GetOp.java:97)
at com.gemstone.gemfire.cache.client.internal.ServerRegionProxy.get(ServerRegionProxy.java:112)
at com.gemstone.gemfire.internal.cache.tx.ClientTXRegionStub.findObject(ClientTXRegionStub.java:72)
at com.gemstone.gemfire.internal.cache.TXStateStub.findObject(TXStateStub.java:379)
at com.gemstone.gemfire.internal.cache.TXStateProxyImpl.findObject(TXStateProxyImpl.java:607)
at com.gemstone.gemfire.internal.cache.LocalRegion.get(LocalRegion.java:1460)
at com.gemstone.gemfire.internal.cache.LocalRegion.get(LocalRegion.java:1398)
at com.gemstone.gemfire.internal.cache.LocalRegion.get(LocalRegion.java:1385)
at com.gemstone.gemfire.internal.cache.AbstractRegion.get(AbstractRegion.java:336)
ServerLocator has a readiness check but it is only testing to see if its DistributedSystem instance variable has been initialized. It ought to wait until it has received a server load update.