Details
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Bug
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Status: Open (View Workflow)
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Major
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Resolution: Unresolved
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10.6.8
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None
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None
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None
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Centos 7
Description
Hello.
I have random hangs of replication on slave servers.
I cannot kill SQL thread or restart mariadb when the issue arises.
Here is some strace output. Nothing else happens.
[pid 29054] futex(0x556d11c326f0, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>
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[pid 33579] futex(0x556d10554d04, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 1215783, {tv_sec=1656738020, tv_nsec=74607000}, 0xffffffff <unfinished ...>
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[pid 29054] <... futex resumed>) = 0
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[pid 29054] clock_gettime(CLOCK_REALTIME, {tv_sec=1656738019, tv_nsec=721983121}) = 0
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[pid 29054] futex(0x556d11c3fa04, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 874299, {tv_sec=1656738079, tv_nsec=721983121}, 0xffffffff <unfinished ...>
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[pid 33579] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out)
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[pid 33579] clock_gettime(CLOCK_REALTIME, {tv_sec=1656738020, tv_nsec=74849558}) = 0
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[pid 33579] futex(0x556d10554d40, FUTEX_WAKE_PRIVATE, 1) = 0
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[pid 33579] futex(0x556d10554d04, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 1215785, {tv_sec=1656738020, tv_nsec=474915000}, 0xffffffff <unfinished ...>
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[pid 34951] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out)
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[pid 34951] tgkill(33578, 33711, SIGUSR1) = 0
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[pid 33711] <... futex resumed>) = ? ERESTARTSYS (To be restarted if SA_RESTART is set)
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[pid 34951] futex(0x556d131be2c8, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>
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[pid 33711] --- SIGUSR1 {si_signo=SIGUSR1, si_code=SI_TKILL, si_pid=33578, si_uid=995} ---
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[pid 34951] <... futex resumed>) = 0
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[pid 33711] rt_sigreturn({mask=[HUP INT QUIT PIPE ALRM TERM TSTP]} <unfinished ...>
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[pid 34951] futex(0x556d131be334, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 801, {tv_sec=1656738022, tv_nsec=109540000}, 0xffffffff <unfinished ...>
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[pid 33711] <... rt_sigreturn resumed>) = -1 EINTR (Interrupted system call)
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[pid 33711] futex(0x7f7798006b78, FUTEX_WAIT_PRIVATE, 2, NULL <unfinished ...>
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[pid 33579] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out)
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[pid 33579] clock_gettime(CLOCK_REALTIME, {tv_sec=1656738020, tv_nsec=475173531}) = 0
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[pid 33579] futex(0x556d10554d40, FUTEX_WAKE_PRIVATE, 1) = 0
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[pid 33579] futex(0x556d10554d04, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 1215787, {tv_sec=1656738020, tv_nsec=721893000}, 0xffffffff^Cstrace: Process 33578 detached
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