[IMPALA-11931] enhance ExecutorBlacklist::IsBlacklisted to avoid null pointer exception

• Type: Bug
• Status: Resolved
• Priority: Trivial
• Resolution: Fixed
• Fix Version/s: Impala 4.3.0
• Epic Color: ghx-label-1
• Assignee: XiangYang
• Reporter: XiangYang
• Created: 17/Feb/23 12:05
• Updated: 23/Feb/23 01:20
• Resolved: 23/Feb/23 01:20

Description

'ExecutorBlacklist::IsBlacklisted(const BackendDescriptorPB& be_desc, Status* cause = nullptr, int64_t*time_remaining_ms = nullptr)' will crash if the 3rd parameter 'time_remaining_ms' is nullptr, see: https://github.com/apache/impala/blob/4.2.0/be/src/scheduling/executor-blacklist.cc#L143