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/** |
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* This file is part of the CernVM File System. |
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* |
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* Implements a socket interface to cvmfs. This way commands can be send |
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* to cvmfs. When cvmfs is running, the socket |
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* /var/cache/cvmfs2/$INSTANCE/cvmfs_io |
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* is available for command input and reply messages, resp. |
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* |
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* Cvmfs comes with the cvmfs_talk script, that handles writing and reading the |
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* socket. |
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* |
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* The talk module runs in a separate thread. |
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*/ |
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#include "cvmfs_config.h" |
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#include "talk.h" |
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#include <errno.h> |
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#include <pthread.h> |
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#include <sys/socket.h> |
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#include <sys/stat.h> |
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#include <sys/types.h> |
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#include <sys/uio.h> |
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#include <sys/un.h> |
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#include <unistd.h> |
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#include <cassert> |
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#include <cstdlib> |
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#include <cstring> |
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#include <string> |
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#include <vector> |
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#include "cache.h" |
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#include "cache_posix.h" |
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#include "catalog_mgr_client.h" |
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#include "cvmfs.h" |
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#include "download.h" |
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#include "duplex_sqlite3.h" |
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#include "fuse_remount.h" |
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#include "glue_buffer.h" |
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#include "loader.h" |
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#include "logging.h" |
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#include "monitor.h" |
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#include "mountpoint.h" |
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#include "nfs_maps.h" |
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#include "options.h" |
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#include "platform.h" |
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#include "quota.h" |
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#include "shortstring.h" |
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#include "statistics.h" |
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#include "tracer.h" |
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#include "util/pointer.h" |
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#include "wpad.h" |
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using namespace std; // NOLINT |
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void TalkManager::Answer(int con_fd, const string &msg) { |
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(void)send(con_fd, &msg[0], msg.length(), MSG_NOSIGNAL); |
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} |
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void TalkManager::AnswerStringList(int con_fd, const vector<string> &list) { |
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string list_str; |
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for (unsigned i = 0; i < list.size(); ++i) { |
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list_str += list[i] + "\n"; |
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} |
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Answer(con_fd, list_str); |
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} |
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TalkManager *TalkManager::Create( |
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const string &socket_path, |
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MountPoint *mount_point, |
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FuseRemounter *remounter) |
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{ |
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UniquePtr<TalkManager> |
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talk_manager(new TalkManager(socket_path, mount_point, remounter)); |
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talk_manager->socket_fd_ = MakeSocket(socket_path, 0660); |
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if (talk_manager->socket_fd_ == -1) |
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return NULL; |
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if (listen(talk_manager->socket_fd_, 1) == -1) |
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return NULL; |
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LogCvmfs(kLogTalk, kLogDebug, "socket created at %s (fd %d)", |
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socket_path.c_str(), talk_manager->socket_fd_); |
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return talk_manager.Release(); |
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} |
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string TalkManager::FormatHostInfo(download::DownloadManager *download_mgr) { |
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vector<string> host_chain; |
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vector<int> rtt; |
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unsigned active_host; |
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download_mgr->GetHostInfo(&host_chain, &rtt, &active_host); |
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string host_str; |
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for (unsigned i = 0; i < host_chain.size(); ++i) { |
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host_str += " [" + StringifyInt(i) + "] " + host_chain[i] + " ("; |
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if (rtt[i] == download::DownloadManager::kProbeUnprobed) |
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host_str += "unprobed"; |
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else if (rtt[i] == download::DownloadManager::kProbeDown) |
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host_str += "host down"; |
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else if (rtt[i] == download::DownloadManager::kProbeGeo) |
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host_str += "geographically ordered"; |
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else |
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host_str += StringifyInt(rtt[i]) + " ms"; |
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host_str += ")\n"; |
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} |
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host_str += "Active host " + StringifyInt(active_host) + ": " + |
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host_chain[active_host] + "\n"; |
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return host_str; |
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} |
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string TalkManager::FormatProxyInfo(download::DownloadManager *download_mgr) { |
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vector< vector<download::DownloadManager::ProxyInfo> > proxy_chain; |
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unsigned active_group; |
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unsigned fallback_group; |
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download_mgr->GetProxyInfo(&proxy_chain, &active_group, &fallback_group); |
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string proxy_str; |
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if (proxy_chain.size()) { |
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proxy_str += "Load-balance groups:\n"; |
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for (unsigned i = 0; i < proxy_chain.size(); ++i) { |
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vector<string> urls; |
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for (unsigned j = 0; j < proxy_chain[i].size(); ++j) { |
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urls.push_back(proxy_chain[i][j].Print()); |
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} |
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proxy_str += |
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"[" + StringifyInt(i) + "] " + JoinStrings(urls, ", ") + "\n"; |
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} |
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proxy_str += "Active proxy: [" + StringifyInt(active_group) + "] " + |
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proxy_chain[active_group][0].url + "\n"; |
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if (fallback_group < proxy_chain.size()) |
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proxy_str += "First fallback group: [" + |
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StringifyInt(fallback_group) + "]\n"; |
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} else { |
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proxy_str = "No proxies defined\n"; |
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} |
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return proxy_str; |
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} |
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/** |
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* Listener thread on the socket. |
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* TODO(jblomer): create Format... helpers to shorten this method |
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*/ |
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void *TalkManager::MainResponder(void *data) { |
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TalkManager *talk_mgr = reinterpret_cast<TalkManager *>(data); |
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MountPoint *mount_point = talk_mgr->mount_point_; |
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FileSystem *file_system = mount_point->file_system(); |
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FuseRemounter *remounter = talk_mgr->remounter_; |
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LogCvmfs(kLogTalk, kLogDebug, "talk thread started"); |
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struct sockaddr_un remote; |
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socklen_t socket_size = sizeof(remote); |
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int con_fd = -1; |
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while (true) { |
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if (con_fd >= 0) { |
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shutdown(con_fd, SHUT_RDWR); |
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close(con_fd); |
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} |
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LogCvmfs(kLogTalk, kLogDebug, "accepting connections on socketfd %d", |
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talk_mgr->socket_fd_); |
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if ((con_fd = accept(talk_mgr->socket_fd_, |
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(struct sockaddr *)&remote, |
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&socket_size)) < 0) |
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{ |
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LogCvmfs(kLogTalk, kLogDebug, "terminating talk thread (fd %d, errno %d)", |
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con_fd, errno); |
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break; |
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} |
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char buf[kMaxCommandSize]; |
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int bytes_read; |
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if ((bytes_read = recv(con_fd, buf, sizeof(buf), 0)) <= 0) |
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continue; |
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if (buf[bytes_read-1] == '\0') |
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bytes_read--; |
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const string line = string(buf, bytes_read); |
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LogCvmfs(kLogTalk, kLogDebug, "received %s (length %u)", |
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line.c_str(), line.length()); |
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if (line == "tracebuffer flush") { |
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mount_point->tracer()->Flush(); |
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talk_mgr->Answer(con_fd, "OK\n"); |
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} else if (line == "cache size") { |
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QuotaManager *quota_mgr = file_system->cache_mgr()->quota_mgr(); |
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if (!quota_mgr->HasCapability(QuotaManager::kCapIntrospectSize)) { |
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talk_mgr->Answer(con_fd, "Cache cannot report its size\n"); |
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} else { |
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uint64_t size_unpinned = quota_mgr->GetSize(); |
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uint64_t size_pinned = quota_mgr->GetSizePinned(); |
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const string size_str = "Current cache size is " + |
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StringifyInt(size_unpinned / (1024*1024)) + "MB (" + |
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StringifyInt(size_unpinned) + " Bytes), pinned: " + |
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StringifyInt(size_pinned / (1024*1024)) + "MB (" + |
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StringifyInt(size_pinned) + " Bytes)\n"; |
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talk_mgr->Answer(con_fd, size_str); |
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} |
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} else if (line == "cache instance") { |
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talk_mgr->Answer(con_fd, file_system->cache_mgr()->Describe()); |
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} else if (line == "cache list") { |
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QuotaManager *quota_mgr = file_system->cache_mgr()->quota_mgr(); |
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if (!quota_mgr->HasCapability(QuotaManager::kCapList)) { |
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talk_mgr->Answer(con_fd, "Cache cannot list its entries\n"); |
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} else { |
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vector<string> ls = quota_mgr->List(); |
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talk_mgr->AnswerStringList(con_fd, ls); |
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} |
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} else if (line == "cache list pinned") { |
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QuotaManager *quota_mgr = file_system->cache_mgr()->quota_mgr(); |
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if (!quota_mgr->HasCapability(QuotaManager::kCapList)) { |
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talk_mgr->Answer(con_fd, "Cache cannot list its entries\n"); |
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} else { |
219 |
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vector<string> ls_pinned = quota_mgr->ListPinned(); |
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talk_mgr->AnswerStringList(con_fd, ls_pinned); |
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} |
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} else if (line == "cache list catalogs") { |
223 |
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QuotaManager *quota_mgr = file_system->cache_mgr()->quota_mgr(); |
224 |
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if (!quota_mgr->HasCapability(QuotaManager::kCapList)) { |
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talk_mgr->Answer(con_fd, "Cache cannot list its entries\n"); |
226 |
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} else { |
227 |
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vector<string> ls_catalogs = quota_mgr->ListCatalogs(); |
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talk_mgr->AnswerStringList(con_fd, ls_catalogs); |
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} |
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} else if (line.substr(0, 12) == "cleanup rate") { |
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QuotaManager *quota_mgr = file_system->cache_mgr()->quota_mgr(); |
232 |
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if (!quota_mgr->HasCapability(QuotaManager::kCapIntrospectCleanupRate)) { |
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talk_mgr->Answer(con_fd, "Unsupported by this cache\n"); |
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} else { |
235 |
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if (line.length() < 14) { |
236 |
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talk_mgr->Answer(con_fd, "Usage: cleanup rate <period in mn>\n"); |
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} else { |
238 |
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const uint64_t period_s = String2Uint64(line.substr(13)) * 60; |
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const uint64_t rate = quota_mgr->GetCleanupRate(period_s); |
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talk_mgr->Answer(con_fd, StringifyInt(rate) + "\n"); |
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} |
242 |
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} |
243 |
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} else if (line.substr(0, 7) == "cleanup") { |
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QuotaManager *quota_mgr = file_system->cache_mgr()->quota_mgr(); |
245 |
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if (!quota_mgr->HasCapability(QuotaManager::kCapShrink)) { |
246 |
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talk_mgr->Answer(con_fd, "Cache cannot trigger eviction\n"); |
247 |
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} else { |
248 |
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if (line.length() < 9) { |
249 |
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talk_mgr->Answer(con_fd, "Usage: cleanup <MB>\n"); |
250 |
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} else { |
251 |
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const uint64_t size = String2Uint64(line.substr(8))*1024*1024; |
252 |
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if (quota_mgr->Cleanup(size)) { |
253 |
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talk_mgr->Answer(con_fd, "OK\n"); |
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} else { |
255 |
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talk_mgr->Answer(con_fd, "Not fully cleaned " |
256 |
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"(there might be pinned chunks)\n"); |
257 |
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} |
258 |
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} |
259 |
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} |
260 |
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} else if (line.substr(0, 5) == "evict") { |
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assert(mount_point->file_system()->type() == FileSystem::kFsFuse); |
262 |
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if (line.length() < 7) { |
263 |
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talk_mgr->Answer(con_fd, "Usage: evict <path>\n"); |
264 |
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} else { |
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const string path = line.substr(6); |
266 |
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const bool found_regular = cvmfs::Evict(path); |
267 |
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if (found_regular) |
268 |
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talk_mgr->Answer(con_fd, "OK\n"); |
269 |
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else |
270 |
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talk_mgr->Answer(con_fd, "No such regular file\n"); |
271 |
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} |
272 |
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} else if (line.substr(0, 3) == "pin") { |
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assert(mount_point->file_system()->type() == FileSystem::kFsFuse); |
274 |
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if (line.length() < 5) { |
275 |
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talk_mgr->Answer(con_fd, "Usage: pin <path>\n"); |
276 |
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} else { |
277 |
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const string path = line.substr(4); |
278 |
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const bool found_regular = cvmfs::Pin(path); |
279 |
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if (found_regular) |
280 |
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talk_mgr->Answer(con_fd, "OK\n"); |
281 |
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else |
282 |
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talk_mgr->Answer(con_fd, "No such regular file or pinning failed\n"); |
283 |
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} |
284 |
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} else if (line == "mountpoint") { |
285 |
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talk_mgr->Answer(con_fd, cvmfs::loader_exports_->mount_point + "\n"); |
286 |
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} else if (line.substr(0, 7) == "remount") { |
287 |
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FuseRemounter::Status status; |
288 |
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if (line == "remount sync") |
289 |
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status = remounter->CheckSynchronously(); |
290 |
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else |
291 |
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status = remounter->Check(); |
292 |
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switch (status) { |
293 |
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case FuseRemounter::kStatusFailGeneral: |
294 |
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talk_mgr->Answer(con_fd, "Failed\n"); |
295 |
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break; |
296 |
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case FuseRemounter::kStatusFailNoSpace: |
297 |
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talk_mgr->Answer(con_fd, "Failed (no space)\n"); |
298 |
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break; |
299 |
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case FuseRemounter::kStatusUp2Date: |
300 |
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talk_mgr->Answer(con_fd, "Catalog up to date\n"); |
301 |
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break; |
302 |
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case FuseRemounter::kStatusDraining: |
303 |
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talk_mgr->Answer(con_fd, "New revision applied\n"); |
304 |
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break; |
305 |
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case FuseRemounter::kStatusMaintenance: |
306 |
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talk_mgr->Answer(con_fd, "In maintenance mode\n"); |
307 |
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break; |
308 |
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default: |
309 |
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talk_mgr->Answer(con_fd, "internal error\n"); |
310 |
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} |
311 |
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} else if (line == "detach nested catalogs") { |
312 |
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mount_point->catalog_mgr()->DetachNested(); |
313 |
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talk_mgr->Answer(con_fd, "OK\n"); |
314 |
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} else if (line == "revision") { |
315 |
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string revision = StringifyInt(mount_point->catalog_mgr()->GetRevision()); |
316 |
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talk_mgr->Answer(con_fd, revision + "\n"); |
317 |
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} else if (line == "max ttl info") { |
318 |
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const unsigned max_ttl = mount_point->GetMaxTtlMn(); |
319 |
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if (max_ttl == 0) { |
320 |
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talk_mgr->Answer(con_fd, "unset\n"); |
321 |
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} else { |
322 |
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const string max_ttl_str = StringifyInt(max_ttl) + " minutes\n"; |
323 |
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talk_mgr->Answer(con_fd, max_ttl_str); |
324 |
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} |
325 |
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} else if (line.substr(0, 11) == "max ttl set") { |
326 |
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if (line.length() < 13) { |
327 |
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talk_mgr->Answer(con_fd, "Usage: max ttl set <minutes>\n"); |
328 |
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} else { |
329 |
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const unsigned max_ttl = String2Uint64(line.substr(12)); |
330 |
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mount_point->SetMaxTtlMn(max_ttl); |
331 |
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talk_mgr->Answer(con_fd, "OK\n"); |
332 |
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} |
333 |
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} else if (line.substr(0, 14) == "nameserver get") { |
334 |
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const string dns_server = mount_point->download_mgr()->GetDnsServer(); |
335 |
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const string reply = !dns_server.empty() ? |
336 |
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std::string("DNS server address: ") + dns_server + "\n": |
337 |
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std::string("DNS server not set.\n"); |
338 |
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talk_mgr->Answer(con_fd, reply); |
339 |
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} else if (line.substr(0, 14) == "nameserver set") { |
340 |
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if (line.length() < 16) { |
341 |
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talk_mgr->Answer(con_fd, "Usage: nameserver set <host>\n"); |
342 |
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} else { |
343 |
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const string host = line.substr(15); |
344 |
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mount_point->download_mgr()->SetDnsServer(host); |
345 |
|
|
talk_mgr->Answer(con_fd, "OK\n"); |
346 |
|
|
} |
347 |
|
|
} else if (line == "external host info") { |
348 |
|
|
string external_host_info = |
349 |
|
|
talk_mgr->FormatHostInfo(mount_point->external_download_mgr()); |
350 |
|
|
talk_mgr->Answer(con_fd, external_host_info); |
351 |
|
|
} else if (line == "host info") { |
352 |
|
|
string host_info = talk_mgr->FormatHostInfo(mount_point->download_mgr()); |
353 |
|
|
talk_mgr->Answer(con_fd, host_info); |
354 |
|
|
} else if (line == "host probe") { |
355 |
|
|
mount_point->download_mgr()->ProbeHosts(); |
356 |
|
|
talk_mgr->Answer(con_fd, "OK\n"); |
357 |
|
|
} else if (line == "host probe geo") { |
358 |
|
|
bool retval = mount_point->download_mgr()->ProbeGeo(); |
359 |
|
|
if (retval) |
360 |
|
|
talk_mgr->Answer(con_fd, "OK\n"); |
361 |
|
|
else |
362 |
|
|
talk_mgr->Answer(con_fd, "Failed\n"); |
363 |
|
|
} else if (line == "external host switch") { |
364 |
|
|
mount_point->external_download_mgr()->SwitchHost(); |
365 |
|
|
talk_mgr->Answer(con_fd, "OK\n"); |
366 |
|
|
} else if (line == "host switch") { |
367 |
|
|
mount_point->download_mgr()->SwitchHost(); |
368 |
|
|
talk_mgr->Answer(con_fd, "OK\n"); |
369 |
|
|
} else if (line.substr(0, 17) == "external host set") { |
370 |
|
|
if (line.length() < 19) { |
371 |
|
|
talk_mgr->Answer(con_fd, "Usage: external host set <URL>\n"); |
372 |
|
|
} else { |
373 |
|
|
const std::string host = line.substr(18); |
374 |
|
|
mount_point->external_download_mgr()->SetHostChain(host); |
375 |
|
|
talk_mgr->Answer(con_fd, "OK\n"); |
376 |
|
|
} |
377 |
|
|
} else if (line.substr(0, 8) == "host set") { |
378 |
|
|
if (line.length() < 10) { |
379 |
|
|
talk_mgr->Answer(con_fd, "Usage: host set <host list>\n"); |
380 |
|
|
} else { |
381 |
|
|
const string hosts = line.substr(9); |
382 |
|
|
mount_point->download_mgr()->SetHostChain(hosts); |
383 |
|
|
talk_mgr->Answer(con_fd, "OK\n"); |
384 |
|
|
} |
385 |
|
|
} else if (line == "external proxy info") { |
386 |
|
|
string external_proxy_info = |
387 |
|
|
talk_mgr->FormatProxyInfo(mount_point->external_download_mgr()); |
388 |
|
|
talk_mgr->Answer(con_fd, external_proxy_info); |
389 |
|
|
} else if (line == "proxy info") { |
390 |
|
|
string proxy_info = |
391 |
|
|
talk_mgr->FormatProxyInfo(mount_point->download_mgr()); |
392 |
|
|
talk_mgr->Answer(con_fd, proxy_info); |
393 |
|
|
} else if (line == "proxy rebalance") { |
394 |
|
|
mount_point->download_mgr()->RebalanceProxies(); |
395 |
|
|
talk_mgr->Answer(con_fd, "OK\n"); |
396 |
|
|
} else if (line == "proxy group switch") { |
397 |
|
|
mount_point->download_mgr()->SwitchProxyGroup(); |
398 |
|
|
talk_mgr->Answer(con_fd, "OK\n"); |
399 |
|
|
} else if (line.substr(0, 18) == "external proxy set") { |
400 |
|
|
if (line.length() < 20) { |
401 |
|
|
talk_mgr->Answer(con_fd, "Usage: external proxy set <proxy list>\n"); |
402 |
|
|
} else { |
403 |
|
|
string external_proxies = line.substr(19); |
404 |
|
|
mount_point->external_download_mgr()->SetProxyChain( |
405 |
|
|
external_proxies, "", download::DownloadManager::kSetProxyRegular); |
406 |
|
|
talk_mgr->Answer(con_fd, "OK\n"); |
407 |
|
|
} |
408 |
|
|
} else if (line.substr(0, 9) == "proxy set") { |
409 |
|
|
if (line.length() < 11) { |
410 |
|
|
talk_mgr->Answer(con_fd, "Usage: proxy set <proxy list>\n"); |
411 |
|
|
} else { |
412 |
|
|
string proxies = line.substr(10); |
413 |
|
|
proxies = |
414 |
|
|
download::ResolveProxyDescription(proxies, "", |
415 |
|
|
mount_point->download_mgr()); |
416 |
|
|
if (proxies == "") { |
417 |
|
|
talk_mgr->Answer(con_fd, "Failed, no valid proxies\n"); |
418 |
|
|
} else { |
419 |
|
|
mount_point->download_mgr()->SetProxyChain( |
420 |
|
|
proxies, "", download::DownloadManager::kSetProxyRegular); |
421 |
|
|
talk_mgr->Answer(con_fd, "OK\n"); |
422 |
|
|
} |
423 |
|
|
} |
424 |
|
|
} else if (line.substr(0, 14) == "proxy fallback") { |
425 |
|
|
if (line.length() < 15) { |
426 |
|
|
talk_mgr->Answer(con_fd, "Usage: proxy fallback <proxy list>\n"); |
427 |
|
|
} else { |
428 |
|
|
string fallback_proxies = line.substr(15); |
429 |
|
|
mount_point->download_mgr()->SetProxyChain( |
430 |
|
|
"", fallback_proxies, download::DownloadManager::kSetProxyFallback); |
431 |
|
|
talk_mgr->Answer(con_fd, "OK\n"); |
432 |
|
|
} |
433 |
|
|
} else if (line == "timeout info") { |
434 |
|
|
unsigned timeout; |
435 |
|
|
unsigned timeout_direct; |
436 |
|
|
mount_point->download_mgr()->GetTimeout(&timeout, &timeout_direct); |
437 |
|
|
string timeout_str = "Timeout with proxy: "; |
438 |
|
|
if (timeout) |
439 |
|
|
timeout_str += StringifyInt(timeout) + "s\n"; |
440 |
|
|
else |
441 |
|
|
timeout_str += "no timeout\n"; |
442 |
|
|
timeout_str += "Timeout without proxy: "; |
443 |
|
|
if (timeout_direct) |
444 |
|
|
timeout_str += StringifyInt(timeout_direct) + "s\n"; |
445 |
|
|
else |
446 |
|
|
timeout_str += "no timeout\n"; |
447 |
|
|
talk_mgr->Answer(con_fd, timeout_str); |
448 |
|
|
} else if (line.substr(0, 11) == "timeout set") { |
449 |
|
|
if (line.length() < 13) { |
450 |
|
|
talk_mgr->Answer(con_fd, "Usage: timeout set <proxy> <direct>\n"); |
451 |
|
|
} else { |
452 |
|
|
uint64_t timeout; |
453 |
|
|
uint64_t timeout_direct; |
454 |
|
|
String2Uint64Pair(line.substr(12), &timeout, &timeout_direct); |
455 |
|
|
mount_point->download_mgr()->SetTimeout(timeout, timeout_direct); |
456 |
|
|
talk_mgr->Answer(con_fd, "OK\n"); |
457 |
|
|
} |
458 |
|
|
} else if (line == "open catalogs") { |
459 |
|
|
talk_mgr->Answer(con_fd, mount_point->catalog_mgr()->PrintHierarchy()); |
460 |
|
|
} else if (line == "internal affairs") { |
461 |
|
|
int current; |
462 |
|
|
int highwater; |
463 |
|
|
string result; |
464 |
|
|
|
465 |
|
|
result += "Inode Generation:\n " + cvmfs::PrintInodeGeneration(); |
466 |
|
|
|
467 |
|
|
// Manually setting the values of the ShortString counters |
468 |
|
|
mount_point->statistics()->Lookup("pathstring.n_instances")-> |
469 |
|
|
Set(PathString::num_instances()); |
470 |
|
|
mount_point->statistics()->Lookup("pathstring.n_overflows")-> |
471 |
|
|
Set(PathString::num_overflows()); |
472 |
|
|
mount_point->statistics()->Lookup("namestring.n_instances")-> |
473 |
|
|
Set(NameString::num_instances()); |
474 |
|
|
mount_point->statistics()->Lookup("namestring.n_overflows")-> |
475 |
|
|
Set(NameString::num_overflows()); |
476 |
|
|
mount_point->statistics()->Lookup("linkstring.n_instances")-> |
477 |
|
|
Set(LinkString::num_instances()); |
478 |
|
|
mount_point->statistics()->Lookup("linkstring.n_overflows")-> |
479 |
|
|
Set(LinkString::num_overflows()); |
480 |
|
|
|
481 |
|
|
// Manually setting the inode tracker numbers |
482 |
|
|
glue::InodeTracker::Statistics inode_stats = |
483 |
|
|
mount_point->inode_tracker()->GetStatistics(); |
484 |
|
|
mount_point->statistics()->Lookup("inode_tracker.n_insert")->Set( |
485 |
|
|
atomic_read64(&inode_stats.num_inserts)); |
486 |
|
|
mount_point->statistics()->Lookup("inode_tracker.n_remove")->Set( |
487 |
|
|
atomic_read64(&inode_stats.num_removes)); |
488 |
|
|
mount_point->statistics()->Lookup("inode_tracker.no_reference")->Set( |
489 |
|
|
atomic_read64(&inode_stats.num_references)); |
490 |
|
|
mount_point->statistics()->Lookup("inode_tracker.n_hit_inode")->Set( |
491 |
|
|
atomic_read64(&inode_stats.num_hits_inode)); |
492 |
|
|
mount_point->statistics()->Lookup("inode_tracker.n_hit_path")->Set( |
493 |
|
|
atomic_read64(&inode_stats.num_hits_path)); |
494 |
|
|
mount_point->statistics()->Lookup("inode_tracker.n_miss_path")->Set( |
495 |
|
|
atomic_read64(&inode_stats.num_misses_path)); |
496 |
|
|
|
497 |
|
|
if (file_system->cache_mgr()->id() == kPosixCacheManager) { |
498 |
|
|
PosixCacheManager *cache_mgr = |
499 |
|
|
reinterpret_cast<PosixCacheManager *>( |
500 |
|
|
file_system->cache_mgr()); |
501 |
|
|
result += "\nCache Mode: "; |
502 |
|
|
switch (cache_mgr->cache_mode()) { |
503 |
|
|
case PosixCacheManager::kCacheReadWrite: |
504 |
|
|
result += "read-write"; |
505 |
|
|
break; |
506 |
|
|
case PosixCacheManager::kCacheReadOnly: |
507 |
|
|
result += "read-only"; |
508 |
|
|
break; |
509 |
|
|
default: |
510 |
|
|
result += "unknown"; |
511 |
|
|
} |
512 |
|
|
} |
513 |
|
|
bool drainout_mode; |
514 |
|
|
bool maintenance_mode; |
515 |
|
|
cvmfs::GetReloadStatus(&drainout_mode, &maintenance_mode); |
516 |
|
|
result += "\nDrainout Mode: " + StringifyBool(drainout_mode) + "\n"; |
517 |
|
|
result += "Maintenance Mode: " + StringifyBool(maintenance_mode) + "\n"; |
518 |
|
|
|
519 |
|
|
if (file_system->IsNfsSource()) { |
520 |
|
|
result += "\nNFS Map Statistics:\n"; |
521 |
|
|
result += file_system->nfs_maps()->GetStatistics(); |
522 |
|
|
} |
523 |
|
|
|
524 |
|
|
result += "SQlite Statistics:\n"; |
525 |
|
|
sqlite3_status(SQLITE_STATUS_MALLOC_COUNT, ¤t, &highwater, 0); |
526 |
|
|
result += " Number of allocations " + StringifyInt(current) + "\n"; |
527 |
|
|
|
528 |
|
|
sqlite3_status(SQLITE_STATUS_MEMORY_USED, ¤t, &highwater, 0); |
529 |
|
|
result += " General purpose allocator " +StringifyInt(current/1024) + |
530 |
|
|
" KB / " + StringifyInt(highwater/1024) + " KB\n"; |
531 |
|
|
|
532 |
|
|
sqlite3_status(SQLITE_STATUS_MALLOC_SIZE, ¤t, &highwater, 0); |
533 |
|
|
result += " Largest malloc " + StringifyInt(highwater) + " Bytes\n"; |
534 |
|
|
|
535 |
|
|
sqlite3_status(SQLITE_STATUS_PAGECACHE_USED, ¤t, &highwater, 0); |
536 |
|
|
result += " Page cache allocations " + StringifyInt(current) + " / " + |
537 |
|
|
StringifyInt(highwater) + "\n"; |
538 |
|
|
|
539 |
|
|
sqlite3_status(SQLITE_STATUS_PAGECACHE_OVERFLOW, |
540 |
|
|
¤t, &highwater, 0); |
541 |
|
|
result += " Page cache overflows " + StringifyInt(current/1024) + |
542 |
|
|
" KB / " + StringifyInt(highwater/1024) + " KB\n"; |
543 |
|
|
|
544 |
|
|
sqlite3_status(SQLITE_STATUS_PAGECACHE_SIZE, ¤t, &highwater, 0); |
545 |
|
|
result += " Largest page cache allocation " + StringifyInt(highwater) + |
546 |
|
|
" Bytes\n"; |
547 |
|
|
|
548 |
|
|
sqlite3_status(SQLITE_STATUS_SCRATCH_USED, ¤t, &highwater, 0); |
549 |
|
|
result += " Scratch allocations " + StringifyInt(current) + " / " + |
550 |
|
|
StringifyInt(highwater) + "\n"; |
551 |
|
|
|
552 |
|
|
sqlite3_status(SQLITE_STATUS_SCRATCH_OVERFLOW, ¤t, &highwater, 0); |
553 |
|
|
result += " Scratch overflows " + StringifyInt(current) + " / " + |
554 |
|
|
StringifyInt(highwater) + "\n"; |
555 |
|
|
|
556 |
|
|
sqlite3_status(SQLITE_STATUS_SCRATCH_SIZE, ¤t, &highwater, 0); |
557 |
|
|
result += " Largest scratch allocation " + StringifyInt(highwater/1024) |
558 |
|
|
+ " KB\n"; |
559 |
|
|
|
560 |
|
|
result += "\nPer-Connection Memory Statistics:\n" + |
561 |
|
|
mount_point->catalog_mgr()->PrintAllMemStatistics(); |
562 |
|
|
|
563 |
|
|
result += "\nRaw Counters:\n" + |
564 |
|
|
mount_point->statistics()->PrintList(perf::Statistics::kPrintHeader); |
565 |
|
|
|
566 |
|
|
talk_mgr->Answer(con_fd, result); |
567 |
|
|
} else if (line == "reset error counters") { |
568 |
|
|
file_system->ResetErrorCounters(); |
569 |
|
|
talk_mgr->Answer(con_fd, "OK\n"); |
570 |
|
|
} else if (line == "pid") { |
571 |
|
|
const string pid_str = StringifyInt(cvmfs::pid_) + "\n"; |
572 |
|
|
talk_mgr->Answer(con_fd, pid_str); |
573 |
|
|
} else if (line == "pid cachemgr") { |
574 |
|
|
const string pid_str = |
575 |
|
|
StringifyInt(file_system->cache_mgr()->quota_mgr()->GetPid()) + "\n"; |
576 |
|
|
talk_mgr->Answer(con_fd, pid_str); |
577 |
|
|
} else if (line == "pid watchdog") { |
578 |
|
|
const string pid_str = StringifyInt(Watchdog::GetPid()) + "\n"; |
579 |
|
|
talk_mgr->Answer(con_fd, pid_str); |
580 |
|
|
} else if (line == "parameters") { |
581 |
|
|
talk_mgr->Answer(con_fd, file_system->options_mgr()->Dump()); |
582 |
|
|
} else if (line == "hotpatch history") { |
583 |
|
|
string history_str = |
584 |
|
|
StringifyTime(cvmfs::loader_exports_->boot_time, true) + |
585 |
|
|
" (start of CernVM-FS loader " + |
586 |
|
|
cvmfs::loader_exports_->loader_version + ")\n"; |
587 |
|
|
for (loader::EventList::const_iterator i = |
588 |
|
|
cvmfs::loader_exports_->history.begin(), |
589 |
|
|
iEnd = cvmfs::loader_exports_->history.end(); i != iEnd; ++i) |
590 |
|
|
{ |
591 |
|
|
history_str += StringifyTime((*i)->timestamp, true) + |
592 |
|
|
" (loaded CernVM-FS Fuse Module " + |
593 |
|
|
(*i)->so_version + ")\n"; |
594 |
|
|
} |
595 |
|
|
talk_mgr->Answer(con_fd, history_str); |
596 |
|
|
} else if (line == "vfs inodes") { |
597 |
|
|
string result; |
598 |
|
|
glue::InodeTracker::Cursor cursor( |
599 |
|
|
mount_point->inode_tracker()->BeginEnumerate()); |
600 |
|
|
uint64_t inode; |
601 |
|
|
while (mount_point->inode_tracker()->NextInode(&cursor, &inode)) { |
602 |
|
|
result += StringifyInt(inode) + "\n"; |
603 |
|
|
} |
604 |
|
|
mount_point->inode_tracker()->EndEnumerate(&cursor); |
605 |
|
|
talk_mgr->Answer(con_fd, result); |
606 |
|
|
} else if (line == "vfs entries") { |
607 |
|
|
string result; |
608 |
|
|
glue::InodeTracker::Cursor cursor( |
609 |
|
|
mount_point->inode_tracker()->BeginEnumerate()); |
610 |
|
|
uint64_t inode_parent; |
611 |
|
|
NameString name; |
612 |
|
|
while (mount_point->inode_tracker()->NextEntry( |
613 |
|
|
&cursor, &inode_parent, &name)) |
614 |
|
|
{ |
615 |
|
|
result += "<" + StringifyInt(inode_parent) + ">/" + name.ToString() + |
616 |
|
|
"\n"; |
617 |
|
|
} |
618 |
|
|
mount_point->inode_tracker()->EndEnumerate(&cursor); |
619 |
|
|
talk_mgr->Answer(con_fd, result); |
620 |
|
|
} else if (line == "version") { |
621 |
|
|
string version_str = string(VERSION) + " (CernVM-FS Fuse Module)\n" + |
622 |
|
|
cvmfs::loader_exports_->loader_version + " (Loader)\n"; |
623 |
|
|
talk_mgr->Answer(con_fd, version_str); |
624 |
|
|
} else if (line == "version patchlevel") { |
625 |
|
|
talk_mgr->Answer(con_fd, string(CVMFS_PATCH_LEVEL) + "\n"); |
626 |
|
|
} else if (line == "tear down to read-only") { |
627 |
|
|
if (file_system->cache_mgr()->id() != kPosixCacheManager) { |
628 |
|
|
talk_mgr->Answer(con_fd, "not supported\n"); |
629 |
|
|
} else { |
630 |
|
|
// hack |
631 |
|
|
cvmfs::UnregisterQuotaListener(); |
632 |
|
|
file_system->TearDown2ReadOnly(); |
633 |
|
|
talk_mgr->Answer(con_fd, "In read-only mode\n"); |
634 |
|
|
} |
635 |
|
|
} else { |
636 |
|
|
talk_mgr->Answer(con_fd, "unknown command\n"); |
637 |
|
|
} |
638 |
|
|
} |
639 |
|
|
|
640 |
|
|
return NULL; |
641 |
|
|
} |
642 |
|
|
|
643 |
|
|
|
644 |
|
|
TalkManager::TalkManager( |
645 |
|
|
const string &socket_path, |
646 |
|
|
MountPoint *mount_point, |
647 |
|
|
FuseRemounter *remounter) |
648 |
|
|
: socket_path_(socket_path) |
649 |
|
|
, socket_fd_(-1) |
650 |
|
|
, mount_point_(mount_point) |
651 |
|
|
, remounter_(remounter) |
652 |
|
|
, spawned_(false) |
653 |
|
|
{ |
654 |
|
|
memset(&thread_talk_, 0, sizeof(thread_talk_)); |
655 |
|
|
} |
656 |
|
|
|
657 |
|
|
|
658 |
|
|
TalkManager::~TalkManager() { |
659 |
|
|
if (!socket_path_.empty()) { |
660 |
|
|
int retval = unlink(socket_path_.c_str()); |
661 |
|
|
if (retval != 0) { |
662 |
|
|
LogCvmfs(kLogTalk, kLogSyslogWarn, |
663 |
|
|
"Could not remove cvmfs_io socket from cache directory (%d)", |
664 |
|
|
errno); |
665 |
|
|
} |
666 |
|
|
} |
667 |
|
|
|
668 |
|
|
if (socket_fd_ >= 0) { |
669 |
|
|
shutdown(socket_fd_, SHUT_RDWR); |
670 |
|
|
close(socket_fd_); |
671 |
|
|
} |
672 |
|
|
|
673 |
|
|
if (spawned_) { |
674 |
|
|
pthread_join(thread_talk_, NULL); |
675 |
|
|
LogCvmfs(kLogTalk, kLogDebug, "talk thread stopped"); |
676 |
|
|
} |
677 |
|
|
} |
678 |
|
|
|
679 |
|
|
|
680 |
|
|
void TalkManager::Spawn() { |
681 |
|
|
int retval = pthread_create(&thread_talk_, NULL, MainResponder, this); |
682 |
|
|
assert(retval == 0); |
683 |
|
|
spawned_ = true; |
684 |
|
|
} |