<div dir="ltr">We had the same issue today:<div><br></div><div><div>root 17780 0.0 0.0 104060 2120 ? S 17:06 0:00 sudo -u pgpool bash -c /db/pgpool/bin/pgpool -n -D -f /db/pgpool/conf/pgm/pgpool.conf -F /db/pgpool/conf/pgm/pcp.conf -a /db/pgpool/conf/pg</div>
<div>pgpool 17783 0.0 0.0 63848 1040 ? S 17:06 0:00 \_ bash -c /db/pgpool/bin/pgpool -n -D -f /db/pgpool/conf/pgm/pgpool.conf -F /db/pgpool/conf/pgm/pcp.conf -a /db/pgpool/conf/pgm/pool_hba.</div><div>pgpool 17784 0.0 0.0 27820 8452 ? S 17:06 0:00 \_ /db/pgpool/bin/pgpool -n -D -f /db/pgpool/conf/pgm/pgpool.conf -F /db/pgpool/conf/pgm/pcp.conf -a /db/pgpool/conf/pgm/pool_hba.conf</div>
<div>pgpool 17849 0.1 0.0 1394592 4968 ? S 17:06 0:02 | \_ pgpool: cloud cloud 10.28.12.164(1490) SET</div><div>pgpool 17887 0.0 0.0 27984 3100 ? S 17:06 0:00 | \_ pgpool: PCP: wait for connection request</div>
<div>pgpool 17888 0.0 0.0 27816 1392 ? S 17:06 0:00 | \_ pgpool: worker process</div><div>pgpool 23015 0.4 0.0 34700 4980 ? S 17:16 0:03 | \_ pgpool: accept connection</div>
<div>pgpool 23461 0.4 0.0 34708 4964 ? S 17:17 0:03 | \_ pgpool: accept connection</div><div>pgpool 27649 1.3 0.0 34792 4996 ? S 17:25 0:03 | \_ pgpool: cloud cloud 10.27.32.162(63629) idle</div>
<div>pgpool 27671 1.7 0.0 34792 5012 ? S 17:25 0:04 | \_ pgpool: cloud cloud 10.28.21.227(19551) idle</div><div>pgpool 27683 1.4 0.0 34792 4996 ? S 17:25 0:03 | \_ pgpool: cloud cloud 10.30.25.32(6826) idle</div>
<div>pgpool 27684 1.5 0.0 34780 5004 ? S 17:25 0:04 | \_ pgpool: cloud cloud 10.30.25.92(56946) idle</div></div><div>--- the rest omitted ---</div><div><br></div><div><br></div><div><div>(gdb) where</div>
<div>#0 0x0000003d222cdaf3 in __select_nocancel () from /lib64/libc.so.6</div><div>#1 0x0000000000418c61 in pool_check_fd (cp=<value optimized out>) at pool_process_query.c:951</div><div>#2 0x000000000041d0d4 in pool_read2 (cp=0x1b490fa0, len=1392508889) at pool_stream.c:264</div>
<div>#3 0x00000000004486db in CommandComplete (frontend=0x1b49b6d0, backend=0x1b485810) at pool_proto_modules.c:2135</div><div>#4 0x000000000044988d in ProcessBackendResponse (frontend=0x1b49b6d0, backend=0x1b485810, state=0x7fffbe069630, num_fields=0x7fffbe069636) at pool_proto_modules.c:2701</div>
<div>#5 0x000000000041b68d in pool_process_query (frontend=0x1b49b6d0, backend=0x1b485810, reset_request=1) at pool_process_query.c:289</div><div>#6 0x000000000040b1a0 in do_child (unix_fd=4, inet_fd=5) at child.c:384</div>
<div>#7 0x000000000040455f in fork_a_child (unix_fd=4, inet_fd=5, id=62) at main.c:1258</div><div>#8 0x0000000000407476 in main (argc=<value optimized out>, argv=0x7fffbe0702e8) at main.c:668</div></div><div><br></div>
<div><br></div><div><div>(gdb) p *cp</div><div>$4 = {fd = 9, wbuf = 0x1b491500 "Q", wbufsz = 8192, wbufpo = 0, ssl_active = -1, hp = 0x1b493510 "S", po = 0, bufsz = 1024, len = 0, sbuf = 0x0, sbufsz = 0, buf2 = 0x2b863ebb0010 "\027DateStyle",</div>
<div> bufsz2 = 1392509952, buf3 = 0x0, bufsz3 = 0, isbackend = 1, db_node_id = 2, tstate = 84 'T', is_internal_transaction_started = 1 '\001', auth_kind = 5, pwd_size = 0,</div><div> password = '\000' <repeats 1023 times>, salt = "\000\000\000", params = {num = 0, names = 0x1b493920, values = 0x1b493d30}, no_forward = 0, kind = 0 '\000', protoVersion = 0, raddr = {addr = {</div>
<div> ss_family = 0, __ss_align = 0, __ss_padding = '\000' <repeats 111 times>}, salen = 0}, auth_method = uaReject, auth_arg = 0x0, database = 0x0, username = 0x0}</div></div><div><br></div><div class="gmail_extra">
<div><br></div>-- <br>cheers,<br>junegunn choi.
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