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Binlog router performance improvements

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This commit is contained in:
Mark Riddoch
2014-10-17 08:38:58 +01:00
parent f459bdfe04
commit 9b3dfc86fe
5 changed files with 47 additions and 9 deletions
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8
server/modules/routing/binlog/blr_file.c
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@ -168,8 +168,10 @@ unsigned char magic[] = BINLOG_MAGIC;
}
fsync(fd);
close(router->binlog_fd);
spinlock_acquire(&router->binlog_lock);
strcpy(router->binlog_name, file);
router->binlog_position = 4; /* Initial position after the magic number */
spinlock_release(&router->binlog_lock);
router->binlog_fd = fd;
}
@ -199,8 +201,10 @@ int fd;
}
fsync(fd);
close(router->binlog_fd);
spinlock_acquire(&router->binlog_lock);
strcpy(router->binlog_name, file);
router->binlog_position = lseek(fd, 0L, SEEK_END);
spinlock_release(&router->binlog_lock);
router->binlog_fd = fd;
}
@ -215,8 +219,10 @@ void
blr_write_binlog_record(ROUTER_INSTANCE *router, REP_HEADER *hdr, uint8_t *buf)
{
pwrite(router->binlog_fd, buf, hdr->event_size, hdr->next_pos - hdr->event_size);
spinlock_acquire(&router->binlog_lock);
router->binlog_position = hdr->next_pos;
router->last_written = hdr->next_pos - hdr->event_size;
spinlock_release(&router->binlog_lock);
}
/**
@ -308,7 +314,7 @@ struct stat statb;
filelen = statb.st_size;
if (pos >= filelen)
{
LOGIF(LE, (skygw_log_write(LOGFILE_ERROR,
LOGIF(LD, (skygw_log_write(LOGFILE_ERROR,
"Attempting to read off the end of the binlog file %s, "
"event at %lu.", file->binlogname, pos)));
return NULL;