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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