Index: oak-segment-azure/src/main/java/org/apache/jackrabbit/oak/segment/azure/AzureUtilities.java
===================================================================
--- oak-segment-azure/src/main/java/org/apache/jackrabbit/oak/segment/azure/AzureUtilities.java	(revision 1863118)
+++ oak-segment-azure/src/main/java/org/apache/jackrabbit/oak/segment/azure/AzureUtilities.java	(working copy)
@@ -35,6 +35,8 @@
 import com.microsoft.azure.storage.blob.CloudBlob;
 import com.microsoft.azure.storage.blob.CloudBlobContainer;
 import com.microsoft.azure.storage.blob.CloudBlobDirectory;
+
+import org.apache.jackrabbit.oak.segment.spi.RepositoryNotReachableException;
 import org.apache.jackrabbit.oak.segment.spi.persistence.Buffer;
 import org.jetbrains.annotations.NotNull;
 import org.slf4j.Logger;
@@ -80,7 +82,7 @@
             blob.download(new ByteBufferOutputStream(buffer));
             buffer.flip();
         } catch (StorageException e) {
-            throw new IOException(e);
+            throw new RepositoryNotReachableException(e);
         }
     }
 
Index: oak-segment-tar/pom.xml
===================================================================
--- oak-segment-tar/pom.xml	(revision 1863118)
+++ oak-segment-tar/pom.xml	(working copy)
@@ -45,6 +45,7 @@
                 <configuration>
                     <instructions>
                         <Export-Package>
+                        	org.apache.jackrabbit.oak.segment.spi,
                             org.apache.jackrabbit.oak.segment.spi.monitor,
                             org.apache.jackrabbit.oak.segment.spi.persistence
                         </Export-Package>
Index: oak-segment-tar/src/main/java/org/apache/jackrabbit/oak/segment/file/FileStore.java
===================================================================
--- oak-segment-tar/src/main/java/org/apache/jackrabbit/oak/segment/file/FileStore.java	(revision 1863118)
+++ oak-segment-tar/src/main/java/org/apache/jackrabbit/oak/segment/file/FileStore.java	(working copy)
@@ -52,6 +52,7 @@
 import org.apache.jackrabbit.oak.segment.file.tar.TarFiles;
 import org.apache.jackrabbit.oak.segment.spi.persistence.RepositoryLock;
 import org.apache.jackrabbit.oak.segment.spi.persistence.SegmentNodeStorePersistence;
+import org.apache.jackrabbit.oak.segment.spi.RepositoryNotReachableException;
 import org.apache.jackrabbit.oak.segment.spi.persistence.Buffer;
 import org.apache.jackrabbit.oak.spi.state.NodeBuilder;
 import org.apache.jackrabbit.oak.stats.CounterStats;
@@ -502,6 +503,11 @@
         try (ShutDownCloser ignored = shutDown.keepAlive()) {
             return segmentCache.getSegment(id, () -> readSegmentUncached(tarFiles, id));
         } catch (ExecutionException | UncheckedExecutionException e) {
+            if (e.getCause() instanceof RepositoryNotReachableException) {
+                log.warn("Unable to access repository", e);
+                throw asSegmentNotFoundException(e, id);
+            }
+
             SegmentNotFoundException snfe = asSegmentNotFoundException(e, id);
             snfeListener.notify(id, snfe);
             stats.notify(id, snfe);
Index: oak-segment-tar/src/main/java/org/apache/jackrabbit/oak/segment/spi/RepositoryNotReachableException.java
===================================================================
--- oak-segment-tar/src/main/java/org/apache/jackrabbit/oak/segment/spi/RepositoryNotReachableException.java	(nonexistent)
+++ oak-segment-tar/src/main/java/org/apache/jackrabbit/oak/segment/spi/RepositoryNotReachableException.java	(working copy)
@@ -0,0 +1,32 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.jackrabbit.oak.segment.spi;
+
+import org.apache.jackrabbit.oak.api.IllegalRepositoryStateException;
+
+/**
+ * This exception is thrown when the store cannot be accessed (e.g. remote segment store)
+ */
+public class RepositoryNotReachableException extends IllegalRepositoryStateException {
+
+    public RepositoryNotReachableException(Throwable e) {
+        super(e);
+    }
+
+}

Property changes on: oak-segment-tar/src/main/java/org/apache/jackrabbit/oak/segment/spi/RepositoryNotReachableException.java
___________________________________________________________________
Added: svn:eol-style
## -0,0 +1 ##
+native
\ No newline at end of property