A Mango trial installation on Windows 8 starts with ma-start, opens the local interface on port 8080, and reaches 40% before reporting Request Error/unable to load/status. The command window also reports that it cannot access RandomAccessFile. The available evidence identifies two configuration checks but does not establish a confirmed root cause.
Capture the failure state
Keep the command window open and confirm that the observed sequence matches the reported case: the local interface opens on 8080, loading stops at 40%, and the command window contains the RandomAccessFile access error. Treat the browser request error as a symptom; the command-window message is the more specific diagnostic evidence.
Check the properties override
- Confirm that JDK 8 is installed, as required by the reported test setup.
- Verify that
env.propertieswas copied into theoverridesdirectory. - Open the effective properties file and locate
db.nosql.shardStreamType. - Record its current value before making any change. The evidence does not provide the required value, so do not guess one.
Separate confirmed facts from unknowns
| Item | Evidence status | Engineering decision |
|---|---|---|
| Operating system | Windows 8 | Use the reported platform when reproducing the issue. |
| Java | JDK 8 reportedly installed | Confirm the running process uses that installation. |
| Local port | 8080 |
Confirms that startup progresses far enough to expose the local interface. |
| Load progress | Stops at 40% | Use this point to correlate browser and command-window errors. |
env.properties |
Copy status unknown | Verify its presence in overrides. |
db.nosql.shardStreamType |
Value unknown | Capture the configured value for review; do not substitute an unsupported value. |
Verify after configuration review
After confirming the override file and validating the shard stream setting through official Mango documentation or support, restart with ma-start. Verify that loading advances beyond 40%, the status request completes, and the command window no longer reports the RandomAccessFile access error. If the failure remains, provide the exact command-window error plus the recorded db.nosql.shardStreamType value to the official support channel.
FAQ
Why does Mango stop loading at 40% on Windows 8?
The evidence does not confirm the root cause. Check whether env.properties exists in overrides and record the value of db.nosql.shardStreamType.
What does Request Error/unable to load/status mean in Mango?
In this case, it appears when startup reaches 40% while the command window reports a RandomAccessFile access error. Diagnose the command-window error and configuration state rather than treating the browser message as the root cause.
What should db.nosql.shardStreamType be set to?
The supplied evidence does not state the correct value. Record the current setting and validate it against official Mango documentation or support before changing it.