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From: zkabelac@sourceware.org To: lvm-devel@redhat.com, lvm2-cvs@sourceware.org Subject: LVM2 ./WHATS_NEW_DM daemons/dmeventd/libdevmap ... Date: Wed, 15 Feb 2012 13:56:00 -0000 [thread overview] Message-ID: <20120215135648.17591.qmail@sourceware.org> (raw) CVSROOT: /cvs/lvm2 Module name: LVM2 Changes by: zkabelac@sourceware.org 2012-02-15 13:56:47 Modified files: . : WHATS_NEW_DM daemons/dmeventd: libdevmapper-event.c Log message: Detect failing fifo If the fifo died because of dmeventd restart - do not wait for 20s in select - it will not get better and return error immediately. Patches: http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/WHATS_NEW_DM.diff?cvsroot=lvm2&r1=1.565&r2=1.566 http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/daemons/dmeventd/libdevmapper-event.c.diff?cvsroot=lvm2&r1=1.44&r2=1.45 --- LVM2/WHATS_NEW_DM 2012/02/15 12:23:15 1.565 +++ LVM2/WHATS_NEW_DM 2012/02/15 13:56:47 1.566 @@ -1,5 +1,6 @@ Version 1.02.71 - ==================================== + Detect failing fifo and skip 20s retry communication period. Add DM_DEFAULT_NAME_MANGLING_MODE env. variable to override configured value. Add dm_lib_init to automatically initialise device-mapper library on load. Replace any '\' char with '\\' in table specification on input. --- LVM2/daemons/dmeventd/libdevmapper-event.c 2012/02/13 11:24:09 1.44 +++ LVM2/daemons/dmeventd/libdevmapper-event.c 2012/02/15 13:56:47 1.45 @@ -232,6 +232,7 @@ size_t size = 2 * sizeof(uint32_t); /* status + size */ uint32_t *header = alloca(size); char *buf = (char *)header; + struct stat fstatbuf; while (bytes < size) { for (i = 0, ret = 0; (i < 20) && (ret < 1); i++) { @@ -245,6 +246,13 @@ log_error("Unable to read from event server"); return 0; } + /* Check whether fifo is still alive */ + if ((ret == 0) && + fstat(fifos->server + 1, &fstatbuf) && + (errno == EBADF)) { + log_error("Fifo fd is bad for event server."); + return 0; + } } if (ret < 1) { log_error("Unable to read from event server.");
next reply other threads:[~2012-02-15 13:56 UTC|newest] Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top 2012-02-15 13:56 zkabelac [this message] -- strict thread matches above, loose matches on Subject: below -- 2012-03-20 17:38 zkabelac 2012-03-12 14:46 zkabelac 2012-02-13 11:24 zkabelac 2012-02-10 15:17 zkabelac 2009-06-15 12:29 mbroz
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