Github user ivakegg commented on a diff in the pull request:
https://github.com/apache/accumulo/pull/253#discussion_r129960835
--- Diff:
server/base/src/main/java/org/apache/accumulo/server/fs/PerTableVolumeChooser.java
---
@@ -18,61 +18,146 @@
import java.util.concurrent.ConcurrentHashMap;
-import org.apache.accumulo.core.client.impl.Table;
+import org.apache.accumulo.core.client.AccumuloException;
+import org.apache.accumulo.core.conf.AccumuloConfiguration;
import org.apache.accumulo.core.conf.Property;
import org.apache.accumulo.server.client.HdfsZooInstance;
import org.apache.accumulo.server.conf.ServerConfigurationFactory;
import org.apache.accumulo.server.conf.TableConfiguration;
+import org.apache.accumulo.start.classloader.vfs.AccumuloVFSClassLoader;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
/**
- * A {@link VolumeChooser} that delegates to another volume chooser based
on the presence of an experimental table property,
- * {@link Property#TABLE_VOLUME_CHOOSER}. If it isn't found, defaults back
to {@link RandomVolumeChooser}.
+ * A {@link VolumeChooser} that delegates to another volume chooser based
on other properties: table.custom.volume.chooser for tables, and
+ * general.custom.scoped.volume.chooser for scopes.
general.custor.{scope}.volume.chooser can override the system wide setting for
+ * general.custom.scoped.volume.chooser. At the this this was written, the
only known scope was "logger".
*/
public class PerTableVolumeChooser implements VolumeChooser {
-
- private final VolumeChooser fallbackVolumeChooser = new
RandomVolumeChooser();
+ private static final Logger log =
LoggerFactory.getLogger(PerTableVolumeChooser.class);
// TODO Add hint of expected size to construction, see ACCUMULO-3410
/* Track VolumeChooser instances so they can keep state. */
- private final ConcurrentHashMap<Table.ID,VolumeChooser>
tableSpecificChooser = new ConcurrentHashMap<>();
+ private final ConcurrentHashMap<String,VolumeChooser>
tableSpecificChooser = new ConcurrentHashMap<>();
--- End diff --
You will see that the same routine (createVolumeChooser) is used to add
volume choosers into those maps, so I had to use a common denominator for the
class. String works well. However if you insist that I use Table.ID here
instead, then I will denormalize the common method.
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at infrastruct...@apache.org or file a JIRA ticket
with INFRA.
---
