Didip Kerabat

Overlord cannot elect a leader because of exception when reacquiring locks.

6

### Affected Version 0.21.1 ### Description ``` 2021-09-01T00:27:08,408 ERROR [LeaderSelector[/druid/overlord/_OVERLORD]] org.apache.druid.curator.discovery.CuratorDruidLeaderSelector - listener becomeLeader() failed. Unable to become leader: {class=org.apache.druid.curator.discovery.CuratorDruidLeaderSelector, exceptionType=class java.lang.RuntimeException, exceptionMessage=org.apache.druid.java.util.common.ISE: Could not reacquire lock on interval[2021-08-29T00:00:00.000Z/2021-08-30T00:00:00.000Z] version[2021-08-31T23:32:28.782Z]...

If SQL Input Source can support Hive, Iceberg, and Presto JDBC, that would be super awesome and I will tell you why.

7

### Description The way `index_parallel` downloads `*.parquet` files is a bit too low level. It has no idea about Iceberg's versioning scheme. So if you just point `index_parallel` to Iceberg's...

Overlord & Coordinator are able to delegate to followers.

8

### Description Coordinator/Overlord is currently a single point of failure has a vertical scalability problem. I think it's time for them to start delegating to their followers. There are some...

GC Counter is not enabled on JDK 11 and JDK 17

6

### Affected Version Druid 0.22.1 and 0.23.0 ### Description I got this `WARN` message on JDK 11 and JDK 17. ```bash 2022-06-25T16:41:52,529 WARN [main] org.apache.druid.java.util.metrics.JvmMonitor - Cannot initialize GC counters....

API to integrate with Grafana

3

## Describe the solution you'd like For a company that already have Druid and Grafana infrastructure, it would be much easier to experiment with SigNoz if SigNoz provides API to...

Installation failure when trying to install CrossPlane

1

### What happened? I am trying to follow the [documentation](https://crossplane.io/docs/v1.9/getting-started/install-configure.html) by running: ``` curl -sL https://raw.githubusercontent.com/crossplane/crossplane/master/install.sh | sh mv kubectl-crossplane /usr/local/bin kubectl crossplane install configuration registry.upbound.io/xp/getting-started-with-aws:latest kubectl crossplane: error: cannot...

Use standard library to correctly glob and stop at the correct folder structure when filtering cloud objects

21

Fixes https://github.com/apache/druid/pull/12659. ### Description Removed: ``` import org.apache.commons.io.FilenameUtils; ``` Add: ``` import java.nio.file.FileSystems; import java.nio.file.PathMatcher; import java.nio.file.Paths; ``` `org.apache.commons.io.FilenameUtils` failed to stop at the correct folder structure. ```java Assert.assertTrue(FilenameUtils.wildcardMatch("db/date=2022-08-01/001.parquet", "db/date=2022-08-01/*.parquet"));...

Coordinator does not handle ZK restart gracefully.

2

### Affected Version 0.23.0 ### Description I was running a simple test on how robust Coordinator deals with Zookeeper restart. Unfortunately Coordinator crashed immediately. This is the logs that shows...

Task logs UI is empty for the new Indexer daemon.

7

### Affected Version v0.23.0 and v0.22.1 ### Description Task logs UI is empty for the new Indexer daemon. This is because they are all running under 1 daemon so the...

The Pinot benchmark does not have indices.

9

I am not a user of Pinot so unfortunately I cannot help in this case. But it seems like it should have indices.