// this host is declared dead; deal with the loss of data
//
int handle_host(DB_HOST& h) {
DB_VDA_CHUNK_HOST ch;
char buf[256];
int retval;
log_messages.printf(MSG_NORMAL, "processing dead host %d\n", h.id);
sprintf(buf, "where host_id=%d", h.id);
while (1) {
retval = ch.enumerate(buf);
if (retval == ERR_DB_NOT_FOUND) break;
if (retval) return retval;
log_messages.printf(MSG_NORMAL, " updating file%d\n", ch.vda_file_id);
DB_VDA_FILE vf;
retval = vf.lookup_id(ch.vda_file_id);
if (retval) {
log_messages.printf(MSG_CRITICAL,
" file lookup failed%d\n", ch.vda_file_id
);
return retval;
}
retval = vf.update_field("need_update=1");
if (retval) {
log_messages.printf(MSG_CRITICAL,
" file update failed%d\n", ch.vda_file_id
);
return retval;
}
}
return 0;
}
// if project is using more than its share of disk space,
// remove some chunks and mark vda_files for update
//
static int enforce_quota(CHUNK_LIST& chunks) {
if (!g_request->host.d_boinc_max) return 0;
double x = g_request->host.d_boinc_used_project;
if (config.debug_vda) {
log_messages.printf(MSG_NORMAL,
"[vda] share: %f used: %f\n",
g_request->host.d_boinc_max, x
);
}
CHUNK_LIST::iterator it = chunks.begin();
while (x > g_request->host.d_boinc_max && it != chunks.end()) {
DB_VDA_CHUNK_HOST& ch = it->second;
if (!ch.found) continue;
FILE_INFO fi;
strcpy(fi.name, ch.physical_file_name);
if (config.debug_vda) {
log_messages.printf(MSG_NORMAL,
"[vda] deleting: %s\n", ch.physical_file_name
);
}
DB_VDA_FILE vf;
vf.lookup_id(ch.vda_file_id);
x -= vf.chunk_size;
g_reply->file_deletes.push_back(fi);
it++;
}
return 0;
}
// process a completed upload:
// if vda_chunk_host found
// verify md5 of upload
// move it from upload dir to vda_file dir
// mark vda_file for update
// clear transfer_in_progress flag in vda_chunk_host
// else
// delete from upload dir
//
static int process_completed_upload(char* chunk_name, CHUNK_LIST& chunks) {
char path[1024], client_filename[1024], dir[1024];
int retval;
physical_file_name(g_reply->host.id, chunk_name, client_filename);
dir_hier_path(
client_filename, config.upload_dir, config.uldl_dir_fanout, dir, false
);
sprintf(path, "%s/%s", dir, client_filename);
CHUNK_LIST::iterator i2 = chunks.find(string(chunk_name));
if (i2 == chunks.end()) {
if (config.debug_vda) {
log_messages.printf(MSG_NORMAL,
"[vda] chunk_host not found for %s\n", chunk_name
);
}
boinc_delete_file(path);
} else {
char client_md5[64], server_md5[64];
char chunk_dir[1024];
DB_VDA_CHUNK_HOST& ch = i2->second;
DB_VDA_FILE vf;
double size;
retval = vf.lookup_id(ch.vda_file_id);
get_chunk_dir(vf, chunk_name, chunk_dir);
retval = get_chunk_md5(chunk_dir, server_md5);
if (retval) return retval;
retval = md5_file(path, client_md5, size);
if (retval) return retval;
if (strcmp(client_md5, server_md5)) {
if (config.debug_vda) {
log_messages.printf(MSG_NORMAL,
"[vda] MD5 mismatch %s %s\n", client_md5, server_md5
);
}
boinc_delete_file(path);
} else {
retval = vf.update_field("need_update=1");
if (retval) return retval;
retval = ch.update_field("transfer_in_progress=0");
if (retval) return retval;
}
}
return 0;
}
// issue upload and download commands
//
static int issue_transfer_commands(CHUNK_LIST& chunks) {
char xml_buf[8192], chunk_name[256], file_name[1024];
int retval;
char url[1024], buf[1024];
CHUNK_LIST::iterator it;
for (it = chunks.begin(); it != chunks.end(); it++) {
vector<const char*> urls;
DB_VDA_CHUNK_HOST& ch = it->second;
if (!ch.transfer_in_progress) continue;
if (!ch.transfer_wait) continue;
DB_VDA_FILE vf;
retval = vf.lookup_id(ch.vda_file_id);
if (retval) return retval;
if (ch.present_on_host) {
// upload
//
sprintf(buf, "upload_%s", ch.physical_file_name);
if (result_already_on_host(buf)) {
if (config.debug_vda) {
log_messages.printf(MSG_NORMAL,
"[vda] upload of %s already in progress\n",
ch.physical_file_name
);
}
continue;
}
if (config.debug_vda) {
log_messages.printf(MSG_NORMAL,
"[vda] sending command to upload %s\n",
ch.physical_file_name
);
}
urls.push_back(config.upload_url);
R_RSA_PRIVATE_KEY key;
retval = get_file_xml(
ch.physical_file_name,
urls,
vf.chunk_size,
dtime() + VDA_HOST_TIMEOUT,
false,
key,
xml_buf
);
} else {
// download
//
sprintf(buf, "download_%s", ch.physical_file_name);
if (result_already_on_host(buf)) {
if (config.debug_vda) {
log_messages.printf(MSG_NORMAL,
"[vda] download of %s already in progress\n",
ch.physical_file_name
);
}
continue;
}
char md5[64], chunk_dir[1024];
int hostid;
if (config.debug_vda) {
log_messages.printf(MSG_NORMAL,
"[vda] sending command to download %s\n",
ch.physical_file_name
);
}
parse_physical_filename(
ch.physical_file_name,
hostid,
chunk_name,
file_name
);
get_chunk_url(vf, chunk_name, url);
urls.push_back(url);
get_chunk_dir(vf, chunk_name, chunk_dir);
retval = get_chunk_md5(chunk_dir, md5);
if (retval) return retval;
retval = put_file_xml(
ch.physical_file_name,
urls,
md5,
vf.chunk_size,
dtime() + VDA_HOST_TIMEOUT,
xml_buf
);
}
g_reply->file_transfer_requests.push_back(string(xml_buf));
}
return 0;
}
// process a completed upload:
// if vda_chunk_host found
// verify md5 of upload
// move it from upload dir to vda_file dir
// mark vda_file for update
// clear transfer_in_progress flag in vda_chunk_host
// else
// delete from upload dir
//
static int process_completed_upload(char* phys_filename, CHUNK_LIST& chunks) {
char path[1024], buf[256];
char chunk_name[1024], file_name[1024];
int retval, hostid;
retval = parse_physical_filename(
phys_filename, hostid, chunk_name, file_name
);
if (retval) {
log_messages.printf(MSG_NORMAL,
"[vda] bad upload filename: %s\n", phys_filename
);
return retval;
}
dir_hier_path(
phys_filename, config.upload_dir, config.uldl_dir_fanout, path, false
);
// if we don't have a DB record for this chunk, delete the file
// TODO: maybe we should create a DB record instead
//
CHUNK_LIST::iterator i2 = chunks.find(string(phys_filename));
if (i2 == chunks.end()) {
if (config.debug_vda) {
log_messages.printf(MSG_NORMAL,
"[vda] chunk_host not found for %s\n", chunk_name
);
}
boinc_delete_file(path);
return 0;
}
char client_md5[64], server_md5[64];
char chunk_dir[1024];
DB_VDA_CHUNK_HOST& ch = i2->second;
DB_VDA_FILE vf;
double size;
retval = vf.lookup_id(ch.vda_file_id);
get_chunk_dir(vf, chunk_name, chunk_dir);
// if file already exists on server, delete the upload file
// Otherwise move the file from upload dir to data dir
//
sprintf(buf, "%s/data.vda", chunk_dir);
if (boinc_file_exists(buf)) {
boinc_delete_file(path);
} else {
retval = get_chunk_md5(chunk_dir, server_md5);
if (retval) return retval;
retval = md5_file(path, client_md5, size);
if (retval) return retval;
if (strcmp(client_md5, server_md5)) {
if (config.debug_vda) {
log_messages.printf(MSG_NORMAL,
"[vda] MD5 mismatch %s %s\n", client_md5, server_md5
);
}
boinc_delete_file(path);
} else {
char dst_path[1024];
sprintf(buf, "%s/data.vda", chunk_dir);
ssize_t n = readlink(buf, dst_path, sizeof(dst_path)-1);
if (n < 0) {
log_messages.printf(MSG_CRITICAL,
"[vda] readlink() failed\n"
);
} else {
dst_path[n] = 0;
sprintf(buf, "mv %s %s; chmod g+rw %s", path, dst_path, dst_path);
retval = system(buf);
if (retval == -1 || WEXITSTATUS(retval)) {
log_messages.printf(MSG_NORMAL,
"[vda] command failed: %s\n", buf
);
} else {
log_messages.printf(MSG_NORMAL,
"[vda] file move succeeded: %s\n", buf
);
}
}
retval = vf.update_field("need_update=1");
}
}
sprintf(buf, "host_id=%d and physical_file_name='%s'",
ch.host_id,
ch.physical_file_name
);
ch.transfer_in_progress = 0;
retval = ch.update_fields_noid("transfer_in_progress=0", buf);
if (retval) return retval;
return 0;
}
// issue upload and download commands
//
static int issue_transfer_commands(CHUNK_LIST& chunks) {
char xml_buf[8192], file_name[1024];
int retval;
char url[1024];
CHUNK_LIST::iterator it;
for (it = chunks.begin(); it != chunks.end(); it++) {
vector<const char*> urls;
DB_VDA_CHUNK_HOST& ch = it->second;
if (!ch.transfer_in_progress) continue;
if (!ch.transfer_wait) continue;
DB_VDA_FILE vf;
retval = vf.lookup_id(ch.vda_file_id);
if (retval) return retval;
if (ch.present_on_host) {
if (config.debug_vda) {
log_messages.printf(MSG_NORMAL,
"[vda] sending upload command: %s\n", ch.name
);
}
// upload
//
sprintf(file_name, "%d_%s__%s", g_reply->host.id, ch.name, vf.name);
urls.push_back(config.upload_url);
R_RSA_PRIVATE_KEY key;
retval = get_file_xml(
file_name,
urls,
ch.size,
dtime() + VDA_HOST_TIMEOUT,
false,
key,
xml_buf
);
} else {
if (config.debug_vda) {
log_messages.printf(MSG_NORMAL,
"[vda] sending download command: %s\n", ch.name
);
}
// download
//
char md5[64], chunk_dir[1024];
sprintf(file_name, "%s__%s", ch.name, vf.name);
get_chunk_url(vf, ch.name, url);
urls.push_back(url);
get_chunk_dir(vf, ch.name, chunk_dir);
retval = get_chunk_md5(chunk_dir, md5);
if (retval) return retval;
retval = put_file_xml(
file_name,
urls,
md5,
ch.size,
dtime() + VDA_HOST_TIMEOUT,
xml_buf
);
}
g_reply->file_transfer_requests.push_back(string(xml_buf));
}
return 0;
}
