Hi,
As I mentioned in another email thread, few child processes of reviewbot
workers turn out to be defunct process. When I tried stracing a reviewbot
worker, I got to know that review.publish() in tasks.py creates a child
process. Though it exits, it becomes a defunct process.
...
clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD,
child_tidptr=0x7f07986649d0) = 102819
fcntl(54, F_SETLK, {type=F_RDLCK, whence=SEEK_SET, start=1073741824,
len=1}) = 0
fcntl(54, F_SETLK, {type=F_RDLCK, whence=SEEK_SET, start=1073741826,
len=510}) = 0
fcntl(54, F_SETLK, {type=F_UNLCK, whence=SEEK_SET, start=1073741824,
len=1}) = 0
access("/u/build/.cache/rbtools/apicache.db-journal", F_OK) = -1 ENOENT (No
such file or directory)
fstat(54, {st_mode=S_IFREG|0644, st_size=2996220928, ...}) = 0
lseek(54, 24, SEEK_SET) = 24
read(54, "\0\0u\355\0\0\0\0\0\0\0\0\0\0\0\0", 16) = 16
lseek(54, 1345011712, SEEK_SET) = 1345011712
read(54,
"\2\0\0\0\3\1l\0\0\37\335\312\1l\2H\3$\3$\0\0\0\0\0\0\0\0\0\0\0\0"...,
1024) = 1024
lseek(54, 249793536, SEEK_SET) = 249793536
read(54,
"\2\0\0\0\5\0\35\1\0\33\213C\1\241\0\305\0\35\2}\3Y\0\0\1s=\201!\0\1s"...,
1024) = 1024
lseek(54, 53715968, SEEK_SET) = 53715968
read(54,
"\2\0\0\0\4\0\301\0\0\37\267\331\1\235\0\301\2y\3$\0\0\0\0\0\0\0\0\0\0\0\0"...,
1024) = 1024
lseek(54, 11038720, SEEK_SET) = 11038720
read(54,
"\2\0\0\0\4\0\274\0\0\22\374\250\0\274\1\230\2u\3R\3Y\0\0\0\334\201V\6\201-\202"...,
1024) = 1024
lseek(54, 6501376, SEEK_SET) = 6501376
read(54,
"\2\0\0\0\4\0\305\0\0\23\5\347\0\305\1l\3$\2H\3#\0\0\0\0\0\22\366K\201W"...,
1024) = 1024
lseek(54, 410624, SEEK_SET) = 410624
read(54,
"\n\0\0\0\5\0z\0\0z\1-\1\340\2\246\3l\3l\0\0\0\201\201\33\6\201\17\2011\2"...,
1024) = 1024
lseek(54, 2564125696, SEEK_SET) = 2564125696
read(54,
"\5\0\0\0?\2\206\0\0\23\7\375\2\206\2\214\2\222\2\230\2\236\2\244\2\252\2\260\2\266\2\274"...,
1024) = 1024
lseek(54, 18166784, SEEK_SET) = 18166784
read(54,
"\5\0\0\0o\1f\0\0\0\177\373\1f\1l\1r\1x\1~\1\204\1\212\1\220\1\226\1\234"...,
1024) = 1024
lseek(54, 18189312, SEEK_SET) = 18189312
read(54, "\r\0\0\0\2\0\242\0\2\263\0\242.com/api/review-requ"..., 1024) =
1024
lseek(54, 18188288, SEEK_SET) = 18188288
read(54, "\0\0\0\0\", \"method\": \"GET\"}, \"self\":"..., 1024) = 1024
lseek(54, 100817920, SEEK_SET) = 100817920
read(54,
"\5\0\0\0o\1f\0\0\1\277\3\1f\1l\1r\1x\1~\1\204\1\212\1\220\1\226\1\234"...,
1024) = 1024
lseek(54, 100541440, SEEK_SET) = 100541440
read(54,
"\r\0\0\0\1\1\357\0\1\357\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"...,
1024) = 1024
lseek(54, 2960993280, SEEK_SET) = 2960993280
read(54, "\0\0\0\0\", \"method\": \"GET\"}, \"self\":"..., 1024) = 1024
fcntl(54, F_SETLK, {type=F_UNLCK, whence=SEEK_SET, start=0, len=0}) = 0
stat("/etc/localtime", {st_mode=S_IFREG|0644, st_size=3519, ...}) = 0
socket(PF_INET, SOCK_STREAM, IPPROTO_TCP) = 53
connect(53, {sa_family=AF_INET, sin_port=htons(80),
sin_addr=inet_addr("10.96.16.1")}, 16) = 0
sendto(53, "GET /api/extensions/reviewbotext"..., 359, 0, NULL, 0) = 359
recvfrom(53, "HTTP/1.1 200 OK\r\nDate: Fri, 14 S"..., 8192, 0, NULL, NULL)
= 1714
close(53) = 0
stat("/etc/localtime", {st_mode=S_IFREG|0644, st_size=3519, ...}) = 0
stat("/etc/localtime", {st_mode=S_IFREG|0644, st_size=3519, ...}) = 0
--- SIGCHLD (Child exited) @ 0 (0) ---
fcntl(54, F_SETLK, {type=F_RDLCK, whence=SEEK_SET, start=1073741824,
len=1}) = 0
fcntl(54, F_SETLK, {type=F_RDLCK, whence=SEEK_SET, start=1073741826,
len=510}) = 0
fcntl(54, F_SETLK, {type=F_UNLCK, whence=SEEK_SET, start=1073741824,
len=1}) = 0
...
102819 was the pid of the defunct process and it was under a reviewbot
worker, that I straced. Can you please let me know what's the issue here?
Thanks,
Hemapriya.
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