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From "Amy (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HAWQ-1342) QE process hang in shared input scan on segment node
Date Fri, 17 Feb 2017 08:55:41 GMT
Amy created HAWQ-1342:
-------------------------

             Summary: QE process hang in shared input scan on segment node
                 Key: HAWQ-1342
                 URL: https://issues.apache.org/jira/browse/HAWQ-1342
             Project: Apache HAWQ
          Issue Type: Bug
          Components: Query Execution
            Reporter: Amy
            Assignee: Lei Chang
             Fix For: 2.3.0.0-incubating


QE process hang on some segment node while QD and QE on other segment nodes terminated.

{code}
[gpadmin@test1 ~]$ cat hostfile
test1   master   secondary namenode
test2   segment   datanode
test3   segment   datanode
test4   segment   datanode
test5   segment   namenode

[gpadmin@test3 ~]$ ps -ef | grep postgres | grep -v grep
gpadmin   41877      1  0 05:35 ?        00:01:04 /usr/local/hawq_2_1_0_0/bin/postgres -D
/data/pulse-agent-data/HAWQ-main-FeatureTest-opt-Multinode-parallel/product/segmentdd -i -M
segment -p 20100 --silent-mode=true
gpadmin   41878  41877  0 05:35 ?        00:00:02 postgres: port 20100, logger process
gpadmin   41881  41877  0 05:35 ?        00:00:00 postgres: port 20100, stats collector process
gpadmin   41882  41877  0 05:35 ?        00:00:07 postgres: port 20100, writer process
gpadmin   41883  41877  0 05:35 ?        00:00:01 postgres: port 20100, checkpoint process
gpadmin   41884  41877  0 05:35 ?        00:00:11 postgres: port 20100, segment resource manager
gpadmin   42108  41877  0 05:35 ?        00:00:03 postgres: port 20100, hawqsuperuser olap_group
10.32.35.192(65193) con35 seg0 cmd2 slice9 MPPEXEC SELECT
gpadmin   42416  41877  0 05:35 ?        00:00:03 postgres: port 20100, hawqsuperuser olap_group
10.32.35.192(65359) con53 seg0 cmd2 slice11 MPPEXEC SELECT
gpadmin   44807  41877  0 05:36 ?        00:00:03 postgres: port 20100, hawqsuperuser olap_group
10.32.35.192(2272) con183 seg0 cmd2 slice31 MPPEXEC SELECT
gpadmin   44819  41877  0 05:36 ?        00:00:03 postgres: port 20100, hawqsuperuser olap_group
10.32.35.192(2278) con183 seg0 cmd2 slice10 MPPEXEC SELECT
gpadmin   44821  41877  0 05:36 ?        00:00:03 postgres: port 20100, hawqsuperuser olap_group
10.32.35.192(2279) con183 seg0 cmd2 slice25 MPPEXEC SELECT
gpadmin   45447  41877  0 05:36 ?        00:00:03 postgres: port 20100, hawqsuperuser olap_group
10.32.35.192(2605) con207 seg0 cmd2 slice9 MPPEXEC SELECT
gpadmin   49859  41877  0 05:38 ?        00:00:03 postgres: port 20100, hawqsuperuser olap_group
10.32.35.192(4805) con432 seg0 cmd2 slice20 MPPEXEC SELECT
gpadmin   49881  41877  0 05:38 ?        00:00:03 postgres: port 20100, hawqsuperuser olap_group
10.32.35.192(4816) con432 seg0 cmd2 slice7 MPPEXEC SELECT
gpadmin   51937  41877  0 05:39 ?        00:00:03 postgres: port 20100, hawqsuperuser olap_group
10.32.35.192(5877) con517 seg0 cmd2 slice7 MPPEXEC SELECT
gpadmin   51939  41877  0 05:39 ?        00:00:03 postgres: port 20100, hawqsuperuser olap_group
10.32.35.192(5878) con517 seg0 cmd2 slice9 MPPEXEC SELECT
gpadmin   51941  41877  0 05:39 ?        00:00:03 postgres: port 20100, hawqsuperuser olap_group
10.32.35.192(5879) con517 seg0 cmd2 slice11 MPPEXEC SELECT
gpadmin   51943  41877  0 05:39 ?        00:00:03 postgres: port 20100, hawqsuperuser olap_group
10.32.35.192(5880) con517 seg0 cmd2 slice13 MPPEXEC SELECT
gpadmin   51953  41877  0 05:39 ?        00:00:03 postgres: port 20100, hawqsuperuser olap_group
10.32.35.192(5885) con517 seg0 cmd2 slice26 MPPEXEC SELECT
gpadmin   53436  41877  0 05:40 ?        00:00:03 postgres: port 20100, hawqsuperuser olap_group
10.32.35.192(6634) con602 seg0 cmd2 slice15 MPPEXEC SELECT
gpadmin   57095  41877  0 05:41 ?        00:00:03 postgres: port 20100, hawqsuperuser olap_group
10.32.35.192(8450) con782 seg0 cmd2 slice10 MPPEXEC SELECT
gpadmin   57097  41877  0 05:41 ?        00:00:04 postgres: port 20100, hawqsuperuser olap_group
10.32.35.192(8451) con782 seg0 cmd2 slice11 MPPEXEC SELECT
gpadmin   63159  41877  0 05:43 ?        00:00:03 postgres: port 20100, hawqsuperuser olap_group
10.32.35.192(11474) con1082 seg0 cmd2 slice15 MPPEXEC SELECT
gpadmin   64018  41877  0 05:44 ?        00:00:03 postgres: port 20100, hawqsuperuser olap_group
10.32.35.192(11905) con1121 seg0 cmd2 slice5 MPPEXEC SELECT
{code}

The stack info is as below and it seems that QE hang in shared input scan.
{code}
[gpadmin@test3 ~]$ gdb -p 42108
(gdb) info threads
  2 Thread 0x7f4f6b335700 (LWP 42109)  0x00000032214df283 in poll () from /lib64/libc.so.6
* 1 Thread 0x7f4f9041c920 (LWP 42108)  0x00000032214e1523 in select () from /lib64/libc.so.6
(gdb) thread 1
[Switching to thread 1 (Thread 0x7f4f9041c920 (LWP 42108))]#1  0x00000000007199be in shareinput_reader_waitready
(share_id=1, planGen=PLANGEN_PLANNER)
    at nodeShareInputScan.c:760
760	in nodeShareInputScan.c
(gdb) bt
#0  0x00000032214e1523 in select () from /lib64/libc.so.6
#1  0x00000000007199be in shareinput_reader_waitready (share_id=1, planGen=PLANGEN_PLANNER)
at nodeShareInputScan.c:760
#2  0x0000000000718c68 in ExecSliceDependencyShareInputScan (node=0x7f4f6aeb1d68) at nodeShareInputScan.c:344
#3  0x00000000006e490f in ExecSliceDependencyNode (node=0x7f4f6aeb1d68) at execProcnode.c:774
#4  0x00000000006e49fb in ExecSliceDependencyNode (node=0x7f4f6aeb17c0) at execProcnode.c:797
#5  0x00000000006e49fb in ExecSliceDependencyNode (node=0x7f4f6aeb1230) at execProcnode.c:797
#6  0x00000000006dee81 in ExecutePlan (estate=0x3462b50, planstate=0x7f4f6aeb1230, operation=CMD_SELECT,
numberTuples=0, direction=ForwardScanDirection, dest=0x7f4f6b229118)
    at execMain.c:3178
#7  0x00000000006dbba1 in ExecutorRun (queryDesc=0x346b570, direction=ForwardScanDirection,
count=0) at execMain.c:1197
#8  0x000000000088e973 in PortalRunSelect (portal=0x3467c40, forward=1 '\001', count=0, dest=0x7f4f6b229118)
at pquery.c:1731
#9  0x000000000088e58e in PortalRun (portal=0x3467c40, count=9223372036854775807, isTopLevel=1
'\001', dest=0x7f4f6b229118, altdest=0x7f4f6b229118,
    completionTag=0x7fff4286c090 "") at pquery.c:1553
#10 0x0000000000883e32 in exec_mpp_query (
    query_string=0x348fa92 "SELECT sale.qty,sale.pn,sale.pn,GROUPING(sale.pn,sale.qty,sale.pn),
TO_CHAR(COALESCE(COVAR_POP(floor(sale.vn*sale.qty),floor(sale.pn/sale.pn)),0),'99999999.9999999'),TO_CHAR(COALESCE(AVG(DISTINCT
floo"..., serializedQuerytree=0x0, serializedQuerytreelen=0, serializedPlantree=0x348fe94
"y6\002", serializedPlantreelen=9061,
    serializedParams=0x0, serializedParamslen=0, serializedSliceInfo=0x34921f9 "\355\002",
serializedSliceInfolen=230, serializedResource=0x349232c "(",
    serializedResourceLen=37, seqServerHost=0x3492351 "10.32.35.192", seqServerPort=44013,
localSlice=9) at postgres.c:1487
#11 0x00000000008898fb in PostgresMain (argc=254, argv=0x3311360, username=0x32f2f10 "hawqsuperuser")
at postgres.c:5051
#12 0x000000000083c198 in BackendRun (port=0x32af5f0) at postmaster.c:5915
#13 0x000000000083b5e3 in BackendStartup (port=0x32af5f0) at postmaster.c:5484
#14 0x0000000000835df0 in ServerLoop () at postmaster.c:2163
#15 0x0000000000834ebb in PostmasterMain (argc=9, argv=0x32b7d10) at postmaster.c:1454
#16 0x000000000076115b in main (argc=9, argv=0x32b7d10) at main.c:226
(gdb) thread 2
[Switching to thread 2 (Thread 0x7f4f6b335700 (LWP 42109))]#0  0x00000032214df283 in poll
() from /lib64/libc.so.6
(gdb) bt
#0  0x00000032214df283 in poll () from /lib64/libc.so.6
#1  0x0000000000a29d03 in rxThreadFunc (arg=0x0) at ic_udp.c:6278
#2  0x0000003221807aa1 in start_thread () from /lib64/libpthread.so.0
#3  0x00000032214e8aad in clone () from /lib64/libc.so.6
(gdb) thread 1
[Switching to thread 1 (Thread 0x7f4f9041c920 (LWP 42108))]#0  0x00000032214e1523 in select
() from /lib64/libc.so.6
(gdb) bt
#0  0x00000032214e1523 in select () from /lib64/libc.so.6
#1  0x00000000007199be in shareinput_reader_waitready (share_id=1, planGen=PLANGEN_PLANNER)
at nodeShareInputScan.c:760
#2  0x0000000000718c68 in ExecSliceDependencyShareInputScan (node=0x7f4f6aeb1d68) at nodeShareInputScan.c:344
#3  0x00000000006e490f in ExecSliceDependencyNode (node=0x7f4f6aeb1d68) at execProcnode.c:774
#4  0x00000000006e49fb in ExecSliceDependencyNode (node=0x7f4f6aeb17c0) at execProcnode.c:797
#5  0x00000000006e49fb in ExecSliceDependencyNode (node=0x7f4f6aeb1230) at execProcnode.c:797
#6  0x00000000006dee81 in ExecutePlan (estate=0x3462b50, planstate=0x7f4f6aeb1230, operation=CMD_SELECT,
numberTuples=0, direction=ForwardScanDirection, dest=0x7f4f6b229118)
    at execMain.c:3178
#7  0x00000000006dbba1 in ExecutorRun (queryDesc=0x346b570, direction=ForwardScanDirection,
count=0) at execMain.c:1197
#8  0x000000000088e973 in PortalRunSelect (portal=0x3467c40, forward=1 '\001', count=0, dest=0x7f4f6b229118)
at pquery.c:1731
#9  0x000000000088e58e in PortalRun (portal=0x3467c40, count=9223372036854775807, isTopLevel=1
'\001', dest=0x7f4f6b229118, altdest=0x7f4f6b229118,
    completionTag=0x7fff4286c090 "") at pquery.c:1553
#10 0x0000000000883e32 in exec_mpp_query (
    query_string=0x348fa92 "SELECT sale.qty,sale.pn,sale.pn,GROUPING(sale.pn,sale.qty,sale.pn),
TO_CHAR(COALESCE(COVAR_POP(floor(sale.vn*sale.qty),floor(sale.pn/sale.pn)),0),'99999999.9999999'),TO_CHAR(COALESCE(AVG(DISTINCT
floo"..., serializedQuerytree=0x0, serializedQuerytreelen=0, serializedPlantree=0x348fe94
"y6\002", serializedPlantreelen=9061,
    serializedParams=0x0, serializedParamslen=0, serializedSliceInfo=0x34921f9 "\355\002",
serializedSliceInfolen=230, serializedResource=0x349232c "(",
    serializedResourceLen=37, seqServerHost=0x3492351 "10.32.35.192", seqServerPort=44013,
localSlice=9) at postgres.c:1487
#11 0x00000000008898fb in PostgresMain (argc=254, argv=0x3311360, username=0x32f2f10 "hawqsuperuser")
at postgres.c:5051
#12 0x000000000083c198 in BackendRun (port=0x32af5f0) at postmaster.c:5915
#13 0x000000000083b5e3 in BackendStartup (port=0x32af5f0) at postmaster.c:5484
#14 0x0000000000835df0 in ServerLoop () at postmaster.c:2163
#15 0x0000000000834ebb in PostmasterMain (argc=9, argv=0x32b7d10) at postmaster.c:1454
#16 0x000000000076115b in main (argc=9, argv=0x32b7d10) at main.c:226
(gdb) f 1
#1  0x00000000007199be in shareinput_reader_waitready (share_id=1, planGen=PLANGEN_PLANNER)
at nodeShareInputScan.c:760
760	in nodeShareInputScan.c
(gdb) p n
$1 = 0
(gdb) p errno
$2 = 17
(gdb) p InterruptPending
$3 = 0 '\000'
(gdb) p QueryCancelPending
$4 = 0 '\000'
(gdb) p ProcDiePending
$5 = 0 '\000'
{code}



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