问strace发现发生broken pipe时多次write tcp报文，为什么会调用write多次？

提问于 2022-10-12 20:52:11

回答 0关注 0查看 75

1359 14:23:44.281072 write(180, "esc\":null,\"activityPrice\":null,\"reduceCount\":null,\"expectSendingTimeStr\":null,\"isPutOff\":null,\"expec"..., 8192 <unfinished ...>

1359 14:23:44.281186 <... write resumed> ) = -1 EPIPE (Broken pipe) <0.000106>

1359 14:23:44.281269 --- SIGPIPE {si_signo=SIGPIPE, si_code=SI_USER, si_pid=1180, si_uid=669} ---

1359 14:23:44.281341 rt_sigreturn({mask=[QUIT]} <unfinished ...>

1359 14:23:44.281402 <... rt_sigreturn resumed> ) = -1 EPIPE (Broken pipe) <0.000054>

1359 14:23:44.282080 futex(0x7fc5fef49c04, FUTEX_WAKE_OP_PRIVATE, 1, 1, 0x7fc5fef49c00, {FUTEX_OP_SET, 0, FUTEX_OP_CMP_GT, 1} <unfinished ...>

1359 14:23:44.282226 <... futex resumed> ) = 0 <0.000139>

1359 14:23:44.282353 futex(0x7fc5fef49bd8, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

1359 14:23:44.282474 <... futex resumed> ) = 0 <0.000118>

1359 14:23:44.284004 futex(0x7fc5fc0e2454, FUTEX_WAKE_OP_PRIVATE, 1, 1, 0x7fc5fc0e2450, {FUTEX_OP_SET, 0, FUTEX_OP_CMP_GT, 1}) = 1 <0.000051>

1359 14:23:44.284114 futex(0x7fc5fd9e7654, FUTEX_WAIT_PRIVATE, 4149, NULL <unfinished ...>

1359 14:23:44.289851 <... futex resumed> ) = 0 <0.005731>

1359 14:23:44.289948 futex(0x7fc5fd9e7628, FUTEX_WAIT_PRIVATE, 2, NULL <unfinished ...>

1359 14:23:44.290039 <... futex resumed> ) = -1 EAGAIN (Resource temporarily unavailable) <0.000086>

1359 14:23:44.290128 futex(0x7fc5fd9e7628, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

1359 14:23:44.290207 <... futex resumed> ) = 0 <0.000075>

1359 14:23:44.291133 write(180, "esc\":null,\"activityPrice\":null,\"reduceCount\":null,\"expectSendingTimeStr\":null,\"isPutOff\":null,\"expec"..., 8192 <unfinished ...>

1359 14:23:44.291268 <... write resumed> ) = -1 EPIPE (Broken pipe) <0.000125>

1359 14:23:44.291367 --- SIGPIPE {si_signo=SIGPIPE, si_code=SI_USER, si_pid=1180, si_uid=669} ---

1359 14:23:44.291487 rt_sigreturn({mask=[QUIT]} <unfinished ...>

1359 14:23:44.291614 <... rt_sigreturn resumed> ) = -1 EPIPE (Broken pipe) <0.000118>

1359 14:23:44.292917 futex(0x7fc5ff113e54, FUTEX_WAIT_BITSET_PRIVATE, 21, {52798912, 428344110}, ffffffff <unfinished ...>

1359 14:23:44.365821 <... futex resumed> ) = -1 ETIMEDOUT (Connection timed out) <0.072896>

1359 14:23:44.366065 futex(0x7fc5ff113e28, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>

1359 14:23:44.366279 <... futex resumed> ) = 0 <0.000209>

1359 14:23:44.367155 sendto(77, "98.0,-1\ncollect.hnc-v.shop-cart.shopping-trade.cxyx.wj.didi.com/rpc_in_http_req\ncaller=hnc-v.wj-cxyx"..., 220, 0, {sa_family=AF_INET, sin_port=htons(788), sin_addr=inet_addr("127.0.0.1")}, 16 <unfinished ...>

1359 14:23:44.367408 <... sendto resumed> ) = 220 <0.000238>

1359 14:23:44.367716 write(180, "esc\":null,\"activityPrice\":null,\"reduceCount\":null,\"expectSendingTimeStr\":null,\"isPutOff\":null,\"expec"..., 8192 <unfinished ...>

1359 14:23:44.367967 <... write resumed> ) = -1 EPIPE (Broken pipe) <0.000244>

1359 14:23:44.368253 --- SIGPIPE {si_signo=SIGPIPE, si_code=SI_USER, si_pid=1180, si_uid=669} ---

1359 14:23:44.368560 rt_sigreturn({mask=[QUIT]} <unfinished ...>

1359 14:23:44.368846 <... rt_sigreturn resumed> ) = -1 EPIPE (Broken pipe) <0.000278>

1359 14:23:44.369070 write(62, "\1", 1 <unfinished ...>

1359 14:23:44.369254 <... write resumed> ) = 1 <0.000178>

1359 14:23:44.369499 write(180, "esc\":null,\"activityPrice\":null,\"reduceCount\":null,\"expectSendingTimeStr\":null,\"isPutOff\":null,\"expec"..., 8192 <unfinished ...>

java