thank you for response ,here is the stats command show: STAT pid 25682 STAT uptime 1110901 STAT time 1336619479 STAT version 1.4.13 STAT libevent 1.4.14b-stable STAT pointer_size 64 STAT rusage_user 77287.380532 STAT rusage_system 189824.220332 STAT curr_connections 183 STAT total_connections 2127367424 STAT connection_structures 4882 STAT reserved_fds 40 STAT cmd_get 1701673335 STAT cmd_set 744414180 STAT cmd_flush 0 STAT cmd_touch 0 STAT get_hits 1462167441 STAT get_misses 239505894 STAT delete_misses 69425540 STAT delete_hits 1279021 STAT incr_misses 332 STAT incr_hits 452567424 STAT decr_misses 0 STAT decr_hits 0 STAT cas_misses 0 STAT cas_hits 0 STAT cas_badval 0 STAT touch_hits 0 STAT touch_misses 0 STAT auth_cmds 0 STAT auth_errors 0 STAT bytes_read 253805193105 STAT bytes_written 801603247301 STAT limit_maxbytes 8589934592 STAT accepting_conns 1 STAT listen_disabled_num 0 STAT threads 8 STAT conn_yields 0 STAT hash_power_level 24 STAT hash_bytes 134217728 STAT hash_is_expanding 0 STAT expired_unfetched 77558615 STAT evicted_unfetched 415180 STAT bytes 6991117045 STAT curr_items 19108525 STAT total_items 1196981580 STAT evictions 464654 STAT reclaimed 81286337
stats settings : STAT maxbytes 0 STAT maxconns 8192 STAT tcpport 11211 STAT udpport 11211 STAT inter 172.16.1.123 STAT verbosity 2 STAT oldest 0 STAT evictions on STAT domain_socket NULL STAT umask 700 STAT growth_factor 1.25 STAT chunk_size 48 STAT num_threads 8 STAT num_threads_per_udp 8 STAT stat_key_prefix : STAT detail_enabled no STAT reqs_per_event 20 STAT cas_enabled yes STAT tcp_backlog 1024 STAT binding_protocol auto-negotiate STAT auth_enabled_sasl no STAT item_size_max 1048576 STAT maxconns_fast no STAT hashpower_init 0 STAT slab_reassign no STAT slab_automove no i don't set the hash_power_level ,it's on a production traffic, i can't reproducting now i start the memcached with -v to get more information. On 4月29日, 上午2时38分, dormando <[email protected]> wrote: > Under 1.4.13, you can use the -o hashpower to pre-size the hash table > (it's a multiple, so don't set it very high!). If you have non-crashed > instances which have been running for a while, you can use the "stats" > command to see what the current power level is. > > If you start instances with a large enough hashpower, does your crash go > away? > > And, again, how are you generating this crash? Just from production > traffic? > > > > > > > > On Sat, 28 Apr 2012, lee wrote: > > memcahced-1.4.13 also has this problem ,the work thread stop at this > > step : > > > if ((nkey == it->nkey) && (memcmp(key, ITEM_key(it), nkey) == 0)) > > > On 4月26日, 上午10时15分, dormando <[email protected]> wrote: > > > We can't support crashes in old versions. > > > > Please upgrade to the latest (1.4.13) and file again if you still have a > > > crash. > > > > On Wed, 25 Apr 2012, lee wrote: > > > > memcached-1.4.5 > > > > i can't reproducing the bug > > > > 2.6.30 x86_64 CentOS > > > > > On 4 25 , 12ʱ03 , dormando <[email protected]> wrote: > > > > > What version of memcached is this? > > > > > > How are you reproducing the bug? > > > > > > What OS/version are you on? > > > > > > On Wed, 25 Apr 2012, lee wrote: > > > > > > the memcached main process can't accept connect when use > > > > > > assoc_maintenance_thread function,here is the gdb bt result: > > > > > > we have 4 thread : > > > > > > |-memcached,28059 -d -p 12111 -c 8192 -m 16384 -u root -l > > > > > > 127.0.0.1 > > > > > > | |-{memcached},28060 > > > > > > | |-{memcached},28061 > > > > > > | |-{memcached},28062 > > > > > > | |-{memcached},28063 > > > > > > | `-{memcached},28064 > > > > > > > gdb bt result: > > > > > > gdb -p 28060 > > > > > > GNU gdb Fedora (6.8-37.el5) > > > > > > Copyright (C) 2008 Free Software Foundation, Inc. > > > > > > License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/ > > > > > > gpl.html> > > > > > > This is free software: you are free to change and redistribute it. > > > > > > There is NO WARRANTY, to the extent permitted by law. Type "show > > > > > > copying" > > > > > > and "show warranty" for details. > > > > > > This GDB was configured as "x86_64-redhat-linux-gnu". > > > > > > Attaching to process 28060 > > > > > > > warning: process 28060 is a cloned process > > > > > > Reading symbols from /usr/local/sinawap/bin/memcached...done. > > > > > > Reading symbols from > > > > > > /usr/local/sinawap/lib/libevent-1.4.so.2...done. > > > > > > Loaded symbols for /usr/local/sinawap/lib/libevent-1.4.so.2 > > > > > > Reading symbols from /lib64/libpthread.so.0...done. > > > > > > [Thread debugging using libthread_db enabled] > > > > > > [New Thread 0x7f2ec05b86e0 (LWP 28059)] > > > > > > [New Thread 0x434f2940 (LWP 28064)] > > > > > > [New Thread 0x42cf1940 (LWP 28063)] > > > > > > [New Thread 0x424f0940 (LWP 28062)] > > > > > > [New Thread 0x41cef940 (LWP 28061)] > > > > > > [New Thread 0x414ee940 (LWP 28060)] > > > > > > Loaded symbols for /lib64/libpthread.so.0 > > > > > > Reading symbols from /lib64/libc.so.6...done. > > > > > > Loaded symbols for /lib64/libc.so.6 > > > > > > Reading symbols from /lib64/libnsl.so.1...done. > > > > > > Loaded symbols for /lib64/libnsl.so.1 > > > > > > Reading symbols from /lib64/librt.so.1...done. > > > > > > Loaded symbols for /lib64/librt.so.1 > > > > > > Reading symbols from /lib64/libresolv.so.2...done. > > > > > > Loaded symbols for /lib64/libresolv.so.2 > > > > > > Reading symbols from /lib64/ld-linux-x86-64.so.2...done. > > > > > > Loaded symbols for /lib64/ld-linux-x86-64.so.2 > > > > > > Reading symbols from /lib64/libnss_files.so.2...done. > > > > > > Loaded symbols for /lib64/libnss_files.so.2 > > > > > > 0x0000003095a0d524 in __lll_lock_wait () from /lib64/libpthread.so.0 > > > > > > (gdb) bt > > > > > > #0 0x0000003095a0d524 in __lll_lock_wait () from > > > > > > /lib64/libpthread.so. > > > > > > 0 > > > > > > #1 0x0000003095a08e1a in _L_lock_1034 () from > > > > > > /lib64/libpthread.so.0 > > > > > > #2 0x0000003095a08cdc in pthread_mutex_lock () from /lib64/ > > > > > > libpthread.so.0 > > > > > > #3 0x000000000040d08e in item_get (key=0x7f2cf8ac1424 > > > > > > "ttt_newuser_2272938860", nkey=128) at thread.c:343 > > > > > > #4 0x0000000000403c14 in process_get_command (c=0x7f2d3888f080, > > > > > > tokens=0x414eded0, ntokens=0, return_cas=false) > > > > > > at memcached.c:2542 > > > > > > #5 0x0000000000408256 in process_command (c=0x7f2d3888f080, > > > > > > command=<value optimized out>) at memcached.c:2975 > > > > > > #6 0x0000000000408bfe in try_read_command (c=0x7f2d3888f080) at > > > > > > memcached.c:3185 > > > > > > #7 0x000000000040989d in event_handler (fd=<value optimized out>, > > > > > > which=128, arg=0x7f2d3888f080) at memcached.c:3491 > > > > > > #8 0x00007f2ec05c25f8 in event_base_loop (base=0x63f420, flags=0) > > > > > > at > > > > > > event.c:392 > > > > > > #9 0x000000000040cbb4 in worker_libevent (arg=0x633f70) at > > > > > > thread.c: > > > > > > 245 > > > > > > #10 0x0000003095a0673d in start_thread () from > > > > > > /lib64/libpthread.so.0 > > > > > > #11 0x00000030952d44bd in clone () from /lib64/libc.so.6 > > > > > > > gdb -p 28061 > > > > > > GNU gdb Fedora (6.8-37.el5) > > > > > > Copyright (C) 2008 Free Software Foundation, Inc. > > > > > > License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/ > > > > > > gpl.html> > > > > > > This is free software: you are free to change and redistribute it. > > > > > > There is NO WARRANTY, to the extent permitted by law. Type "show > > > > > > copying" > > > > > > and "show warranty" for details. > > > > > > This GDB was configured as "x86_64-redhat-linux-gnu". > > > > > > Attaching to process 28061 > > > > > > > warning: process 28061 is a cloned process > > > > > > Reading symbols from /usr/local/sinawap/bin/memcached...done. > > > > > > Reading symbols from > > > > > > /usr/local/sinawap/lib/libevent-1.4.so.2...done. > > > > > > Loaded symbols for /usr/local/sinawap/lib/libevent-1.4.so.2 > > > > > > Reading symbols from /lib64/libpthread.so.0...done. > > > > > > [Thread debugging using libthread_db enabled] > > > > > > [New Thread 0x7f2ec05b86e0 (LWP 28059)] > > > > > > [New Thread 0x434f2940 (LWP 28064)] > > > > > > [New Thread 0x42cf1940 (LWP 28063)] > > > > > > [New Thread 0x424f0940 (LWP 28062)] > > > > > > [New Thread 0x41cef940 (LWP 28061)] > > > > > > [New Thread 0x414ee940 (LWP 28060)] > > > > > > Loaded symbols for /lib64/libpthread.so.0 > > > > > > Reading symbols from /lib64/libc.so.6...done. > > > > > > Loaded symbols for /lib64/libc.so.6 > > > > > > Reading symbols from /lib64/libnsl.so.1...done. > > > > > > Loaded symbols for /lib64/libnsl.so.1 > > > > > > Reading symbols from /lib64/librt.so.1...done. > > > > > > Loaded symbols for /lib64/librt.so.1 > > > > > > Reading symbols from /lib64/libresolv.so.2...done. > > > > > > Loaded symbols for /lib64/libresolv.so.2 > > > > > > Reading symbols from /lib64/ld-linux-x86-64.so.2...done. > > > > > > Loaded symbols for /lib64/ld-linux-x86-64.so.2 > > > > > > Reading symbols from /lib64/libnss_files.so.2...done. > > > > > > Loaded symbols for /lib64/libnss_files.so.2 > > > > > > 0x0000003095a0d524 in __lll_lock_wait () from /lib64/libpthread.so.0 > > > > > > (gdb) bt > > > > > > #0 0x0000003095a0d524 in __lll_lock_wait () from > > > > > > /lib64/libpthread.so. > > > > > > 0 > > > > > > #1 0x0000003095a08e1a in _L_lock_1034 () from > > > > > > /lib64/libpthread.so.0 > > > > > > #2 0x0000003095a08cdc in pthread_mutex_lock () from /lib64/ > > > > > > libpthread.so.0 > > > > > > #3 0x000000000040d0f6 in item_alloc (key=0x7f2cd3a2a0a4 > > > > > > "ttt_api_unread_2557924625", nkey=128, flags=0, > > > > > > exptime=4294967295, nbytes=6395456) at thread.c:331 > > > > > > #4 0x0000000000407fa7 in process_update_command (c=0x7f2ebc16e900, > > > > > > tokens=<value optimized out>, > > > > > > ntokens=<value optimized out>, comm=2, handle_cas=false) at > > > > > > memcached.c:2728 > > > > > > #5 0x00000000004083be in process_command (c=0x7f2ebc16e900, > > > > > > command=<value optimized out>) at memcached.c:2984 > > > > > > #6 0x0000000000408bfe in try_read_command (c=0x7f2ebc16e900) at > > > > > > memcached.c:3185 > > > > > > #7 0x000000000040989d in event_handler (fd=<value optimized out>, > > > > > > which=128, arg=0x7f2ebc16e900) at memcached.c:3491 > > > > > > #8 0x00007f2ec05c25f8 in event_base_loop (base=0x658130, flags=0) > > > > > > at > > > > > > event.c:392 > > > > > > #9 0x000000000040cbb4 in worker_libevent (arg=0x636c98) at > > > > > > thread.c: > > > > > > 245 > > > > > > #10 0x0000003095a0673d in start_thread () from > > > > > > /lib64/libpthread.so.0 > > > > > > #11 0x00000030952d44bd in clone () from /lib64/libc.so.6 > > > > > > > gdb -p 28062 > > > > > > GNU gdb Fedora (6.8-37.el5) > > > > > > Copyright (C) 2008 Free Software Foundation, Inc. > > > > > > License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/ > > > > > > gpl.html> > > > > > > This is free software: you are free to change and redistribute it. > > > > > > There is NO WARRANTY, to the extent permitted by law. Type "show > > > > > > copying" > > > > > > and "show warranty" for details. > > > > > > This GDB was configured as "x86_64-redhat-linux-gnu". > > > > > > Attaching to process 28062 > > > > > > > warning: process 28062 is a cloned process > > > > > > Reading symbols from /usr/local/sinawap/bin/memcached...done. > > > > > > Reading symbols from > > > > > > /usr/local/sinawap/lib/libevent-1.4.so.2...done. > > > > > > Loaded symbols for /usr/local/sinawap/lib/libevent-1.4.so.2 > > > > > > Reading symbols from /lib64/libpthread.so.0...done. > > > > > > [Thread debugging using libthread_db enabled] > > > > > > [New Thread 0x7f2ec05b86e0 (LWP 28059)] > > > > > > [New Thread 0x434f2940 (LWP 28064)] > > > > > > [New Thread 0x42cf1940 (LWP 28063)] > > > > > > [New Thread 0x424f0940 (LWP 28062)] > > > > > > [New Thread 0x41cef940 (LWP 28061)] > > > > > > [New Thread 0x414ee940 (LWP 28060)] > > > > > > Loaded symbols for /lib64/libpthread.so.0 > > > > > > Reading symbols from /lib64/libc.so.6...done. > > > > > > Loaded symbols for > > ... > > 阅读更多 »
