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2694524 - DAS listener port can not be disabled nor configured

Symptom

  • In IQ Multiplex, if DQP is enabled, a DAS listener with random port number and address 0.0.0.0 will be be started:

    [dba@localhost testiq16]$ netstat -anp | grep iqsrv
    (Not all processes could be identified, non-owned process info
    will not be shown, you would have to be root to see it all.)
    tcp 0 0 0.0.0.0:2638 0.0.0.0:* LISTEN 2987/iqsrv16 
    tcp 0 0 :::2638 :::* LISTEN 2987/iqsrv16
    tcp 0 0 0.0.0.0:57084 0.0.0.0:* LISTEN 2987/iqsrv16
    udp 0 0 0.0.0.0:2638 0.0.0.0:* 2987/iqsrv16 
    udp 0 0 :::2638 :::* 2987/iqsrv16 
    unix 2 [ ACC ] STREAM LISTENING 22515 2987/iqsrv16 /tmp/.SQLAnywhere/testiq16/lrm_socket
    unix 2 [ ] DGRAM 22489 2987/iqsrv16 

  • In stderr, below message can be observed:
    Started private DAS listener on 0.0.0.0:57084

  • This DAS listener can not be disabled and its address and port number can not be configured. The random port number and listening on all IP address may cause network security vulnerabilities.

"Image/data in this KBA is from SAP internal systems, sample data, or demo systems. Any resemblance to real data is purely coincidental."


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Environment

  • SAP IQ 16.1 SP03 Multiplex
  • SAP IQ 16.1 SP02 Multiplex
  • SAP IQ 16.1 SP01 Multiplex
  • SAP IQ 16.0 SP11 Multiplex

Product

SAP IQ 16.0 ; SAP IQ 16.1

Keywords

CR815951, CR#815951, 815951, DAS, shared nothing, DQP , KBA , BC-SYB-IQ , Sybase IQ , BW-SYS-DB-IQ , BW on HANA with Sybase IQ Near-line Storage , Product Enhancement

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