[STORM-742] Very busy ShellBolt subprocess with ACK mode cannot respond heartbeat just in time

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 0.9.3, 0.10.0, 0.9.4, 1.0.0
• Fix Version/s: 0.10.0
• Component/s: storm-multilang
• Assignee: Jungtaek Lim
• Reporter: Jungtaek Lim
• Created: 31/Mar/15 21:47
• Updated: 22/Nov/15 13:43
• Resolved: 14/Aug/15 13:46

Description

As dashengju stated from STORM-738, very busy ShellBolt subprocess cannot respond heartbeat just in time.

Actually it's by design constraint (more details are on STORM-513 or STORM-738), but ShellSpout avoids constraint by updating heartbeat at any type of response from subprocess.

We can apply this approach to ShellBolt and let ShellBolt avoid design constraint, too.

Issue Links

• contains: STORM-758 Very busy ShellBolt subprocess with Non-ACK mode cannot respond heartbeat just in time
• Is contained by: STORM-738 Multilang needs Overflow-Control mechanism and HeartBeat timeout problem
• Is contained by: STORM-871 Change multilang heartbeat mechanism to multi-threading of subprocess
• relates to: STORM-963 Frozen topology (KafkaSpout + Multilang bolt)