Problem Note 60540: SAS® Event Stream Processing Server running a model using DBSCAN clustering ends abruptly with an unhandled exception processing data
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The SAS Event Stream Processing Server is started with a model using the DBSCAN clustering algorithm. While processing data in the train window, the SAS Event Stream Processing Server ends abruptly with an unhandled exception, which occurs in the tksads.so library. In this scenario, the following output might be written to the log:
ERROR: The system has encountered an unhandled Exception.
: Please contact technical support and provide them
: with the following traceback and system dump information:
: Please contact technical support and provide them
: with the following traceback and system dump information:
ABORT: SAS/TK is aborting
: Abort Log file [tk.reportlog.9608]
: ---------------------------------------
: Time [5/26/2017 3:35:45 PM]
: ---------------------------------------
: Thread Name [<Unknown>]
: Abort Log file [tk.reportlog.9608]
: ---------------------------------------
: Time [5/26/2017 3:35:45 PM]
: ---------------------------------------
: Thread Name [<Unknown>]
Traceback:
/opt/sas/viya/home/SASFoundation/sasexe/tkmk.so(bkt_abort_tkt_cb+0xb5) [0x7f8edbca6d35]
/opt/sas/viya/home/SASFoundation/sasexe/tkmk.so(skaCallAbortRoutines+0xc7) [0x7f8edbca5c67]
/opt/sas/viya/home/SASFoundation/sasexe/tkmk.so(bkabort+0x98) [0x7f8edbcb2288]
/opt/sas/viya/home/SASFoundation/sasexe/tkmk.so(bkt_fpe+0x80) [0x7f8edbca7720]
/opt/sas/viya/home/SASFoundation/sasexe/tkmk.so(bkt_signal_handler+0x145) [0x7f8edbca3355]
/lib64/libpthread.so.0(+0xf370) [0x7f8ee16ec370]
/opt/sas/viya/home/SASFoundation/sasexe/tksads.so(+0x5b65) [0x7f8ecd77db65]
/opt/sas/viya/home/SASFoundation/sasexe/tksads.so(tksadsTrainModel+0x1c) [0x7f8ecd77c2fc]
/opt/sas/viya/home/SASFoundation/sasexe/esp_sa_plugin.so(update_model+0x128) [0x7f8ecdec33a8]
/opt/sas/viya/home/SASEventStreamProcessingEngine/4.3.0/lib/libdfxesp-4.3.so(_ZN11dfESPwindow7computeEPS_P15dfESPeventblockR12dfESPptrVectIP10dfESPeventE+0x1c9) [0x7f8edf634159]
/opt/sas/viya/home/SASEventStreamProcessingEngine/4.3.0/lib/libdfxesp-4.3.so(_ZN14dfESPwindow_sa7computeEP11dfESPwindowP15dfESPeventblockR12dfESPptrVectIP10dfESPeventE+0x3f) [0x7f8edf69e45f]
/opt/sas/viya/home/SASEventStreamProcessingEngine/4.3.0/lib/libdfxesp-4.3.so(_ZN11dfESPwindow3runEPS_P15dfESPeventblockR12dfESPptrVectIP10dfESPeventE+0x2b) [0x7f8edf631f6b]
/opt/sas/viya/home/SASEventStreamProcessingEngine/4.3.0/lib/libdfxesp-4.3.so(_ZN14dfESPwindow_sa3runEP11dfESPwindowP15dfESPeventblockR12dfESPptrVectIP10dfESPeventE+0xc9) [0x7f8edf69e299]
/opt/sas/viya/home/SASEventStreamProcessingEngine/4.3.0/lib/libdfxesp-4.3.so(_ZN11dfESPwindow12processInputEPS_P15dfESPeventblockR12dfESPptrVectIP10dfESPeventEb+0xb4) [0x7f8edf639e84]
/opt/sas/viya/home/SASEventStreamProcessingEngine/4.3.0/lib/libdfxesp-4.3.so(_ZN14dfESPcontquery5runMTEP15dfESPtpWorkItem+0xff) [0x7f8edf55685f]
/opt/sas/viya/home/SASEventStreamProcessingEngine/4.3.0/lib/libdfxesp-4.3.so(_ZN16dfESPthreadUtils14contqueryLogicEPvS0_S0_+0x61) [0x7f8edf62e7e1]
/opt/sas/viya/home/SASFoundation/sasexe/tkepdl.so(+0x564b) [0x7f8ed10bc64b]
/opt/sas/viya/home/SASFoundation/sasexe/tkmk.so(sktMain+0x8d) [0x7f8edbca0dbd]
/opt/sas/viya/home/SASFoundation/sasexe/tkmk.so(bktMain+0x71) [0x7f8edbca2b21]
/lib64/libpthread.so.0(+0x7dc5) [0x7f8ee16e4dc5]
/lib64/libc.so.6(clone+0x6d) [0x7f8ee005f73d]Aborted (core dumped)
/opt/sas/viya/home/SASFoundation/sasexe/tkmk.so(skaCallAbortRoutines+0xc7) [0x7f8edbca5c67]
/opt/sas/viya/home/SASFoundation/sasexe/tkmk.so(bkabort+0x98) [0x7f8edbcb2288]
/opt/sas/viya/home/SASFoundation/sasexe/tkmk.so(bkt_fpe+0x80) [0x7f8edbca7720]
/opt/sas/viya/home/SASFoundation/sasexe/tkmk.so(bkt_signal_handler+0x145) [0x7f8edbca3355]
/lib64/libpthread.so.0(+0xf370) [0x7f8ee16ec370]
/opt/sas/viya/home/SASFoundation/sasexe/tksads.so(+0x5b65) [0x7f8ecd77db65]
/opt/sas/viya/home/SASFoundation/sasexe/tksads.so(tksadsTrainModel+0x1c) [0x7f8ecd77c2fc]
/opt/sas/viya/home/SASFoundation/sasexe/esp_sa_plugin.so(update_model+0x128) [0x7f8ecdec33a8]
/opt/sas/viya/home/SASEventStreamProcessingEngine/4.3.0/lib/libdfxesp-4.3.so(_ZN11dfESPwindow7computeEPS_P15dfESPeventblockR12dfESPptrVectIP10dfESPeventE+0x1c9) [0x7f8edf634159]
/opt/sas/viya/home/SASEventStreamProcessingEngine/4.3.0/lib/libdfxesp-4.3.so(_ZN14dfESPwindow_sa7computeEP11dfESPwindowP15dfESPeventblockR12dfESPptrVectIP10dfESPeventE+0x3f) [0x7f8edf69e45f]
/opt/sas/viya/home/SASEventStreamProcessingEngine/4.3.0/lib/libdfxesp-4.3.so(_ZN11dfESPwindow3runEPS_P15dfESPeventblockR12dfESPptrVectIP10dfESPeventE+0x2b) [0x7f8edf631f6b]
/opt/sas/viya/home/SASEventStreamProcessingEngine/4.3.0/lib/libdfxesp-4.3.so(_ZN14dfESPwindow_sa3runEP11dfESPwindowP15dfESPeventblockR12dfESPptrVectIP10dfESPeventE+0xc9) [0x7f8edf69e299]
/opt/sas/viya/home/SASEventStreamProcessingEngine/4.3.0/lib/libdfxesp-4.3.so(_ZN11dfESPwindow12processInputEPS_P15dfESPeventblockR12dfESPptrVectIP10dfESPeventEb+0xb4) [0x7f8edf639e84]
/opt/sas/viya/home/SASEventStreamProcessingEngine/4.3.0/lib/libdfxesp-4.3.so(_ZN14dfESPcontquery5runMTEP15dfESPtpWorkItem+0xff) [0x7f8edf55685f]
/opt/sas/viya/home/SASEventStreamProcessingEngine/4.3.0/lib/libdfxesp-4.3.so(_ZN16dfESPthreadUtils14contqueryLogicEPvS0_S0_+0x61) [0x7f8edf62e7e1]
/opt/sas/viya/home/SASFoundation/sasexe/tkepdl.so(+0x564b) [0x7f8ed10bc64b]
/opt/sas/viya/home/SASFoundation/sasexe/tkmk.so(sktMain+0x8d) [0x7f8edbca0dbd]
/opt/sas/viya/home/SASFoundation/sasexe/tkmk.so(bktMain+0x71) [0x7f8edbca2b21]
/lib64/libpthread.so.0(+0x7dc5) [0x7f8ee16e4dc5]
/lib64/libc.so.6(clone+0x6d) [0x7f8ee005f73d]Aborted (core dumped)
A tk.reportlog file is also written to the working directory of the SAS Event Stream Processing Server.
The unhandled exception occurs when the data points form a very dense cluster.
Click the Hot Fix tab in this note to access the hot fix for this issue.
Operating System and Release Information
| Product Family | Product | System | Product Release | SAS Release | ||
| Reported | Fixed* | Reported | Fixed* | |||
| SAS System | SAS Event Stream Processing Engine | Linux for x64 | 4.3 | 5.1 | ||
An update for this issue is available for SAS® Event Stream Processing 4.3. For instructions on how to access and apply this software update see the SAS Event Stream Processing 4.3 Deployment Guide links on
http://ftp.sas.com/techsup/download/hotfix/HF2/Viya_ESP_4_3_home.html#60540| Type: | Problem Note |
| Priority: | medium |
| Date Modified: | 2018-04-24 13:15:59 |
| Date Created: | 2017-05-26 15:36:13 |