dosubot[bot] commented on issue #2667:
URL:
https://github.com/apache/incubator-hugegraph/issues/2667#issuecomment-2407243272
<!-- Answer -->
To allow task scheduling on a server with `server.role=computer` in a
standalone HugeGraph cluster using `backend=rocksdb`, you need to modify the
code to permit scheduling on a computer node. Here's how you can do it:
1. **Modify the Task Scheduling Check**: Update the logic in the
`StandardTaskScheduler` class to allow scheduling on a computer node.
Locate the `schedule` method and modify the master node check to include
the computer role:
```java
// Check this is on master or computer for normal task schedule
if (!this.serverManager().selfIsMaster() &&
!this.serverManager().selfIsComputer()) {
throw new HugeException("Can't schedule task on non-master and
non-computer server");
}
```
2. **Ensure Role Checking Method Exists**: Make sure the `ServerInfoManager`
class has a method `selfIsComputer()` to verify if the current server role is
`computer`.
Example implementation:
```java
public boolean selfIsComputer() {
return this.selfNodeRole() != null && this.selfNodeRole().computer();
}
```
By making these changes, the system will allow task scheduling on a server
with the `computer` role, resolving the error you encountered
<sup>[[1]](https://github.com/apache/incubator-hugegraph/blob/master/hugegraph-server/hugegraph-core/src/main/java/org/apache/hugegraph/task/StandardTaskScheduler.java)</sup><sup>[[2]](https://github.com/apache/incubator-hugegraph/blob/master/hugegraph-server/hugegraph-core/src/main/java/org/apache/hugegraph/task/ServerInfoManager.java)</sup>.
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