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Failed to initialize HDFS directories after 90 attempts.
voldemort.VoldemortException: Failed to initialize HDFS
 directories after 90 attempts.	at voldemort.store.readonly.swapper.HdfsFailedFetchLock.initDirs(HdfsFailedFetchLock.java:141)	at voldemort.store.readonly.swapper.HdfsFailedFetchLock.(HdfsFailedFetchLock.java:114)	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)	at java.lang.reflect.Constructor.newInstance(Constructor.java:422)	at voldemort.utils.ReflectUtils.callConstructor(ReflectUtils.java:116)	at voldemort.utils.ReflectUtils.callConstructor(ReflectUtils.java:103)	at voldemort.server.protocol.admin.AdminServiceRequestHandler.handleFetchFailure(AdminServiceRequestHandler.java:2045)	at voldemort.server.protocol.admin.AdminServiceRequestHandler.handleRequest(AdminServiceRequestHandler.java:350)	at voldemort.server.niosocket.AsyncRequestHandler.read(AsyncRequestHandler.java:192)	at voldemort.common.nio.SelectorManagerWorker.run(SelectorManagerWorker.java:105)	at voldemort.common.nio.AbstractSelectorManager.run(AbstractSelectorManager.java:243)	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)	at java.lang.Thread.run(Thread.java:745)