1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
2 // vim: ts=8 sw=2 smarttab
4 * Ceph - scalable distributed file system
6 * Copyright (C) 2004-2006 Sage Weil <sage@newdream.net>
8 * This is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License version 2.1, as published by the Free Software
11 * Foundation. See file COPYING.
19 #include "osdc/Filer.h"
21 #include "RecoveryQueue.h"
23 #define dout_context g_ceph_context
24 #define dout_subsys ceph_subsys_mds
26 #define dout_prefix *_dout << "mds." << mds->get_nodeid() << " RecoveryQueue::" << __func__ << " "
28 class C_MDC_Recover : public MDSIOContextBase {
32 void finish(int r) override {
33 rq->_recovered(in, r, size, mtime);
36 MDSRank *get_mds() override {
44 C_MDC_Recover(RecoveryQueue *rq_, CInode *i) : rq(rq_), in(i), size(0) {
50 RecoveryQueue::RecoveryQueue(MDSRank *mds_)
51 : mds(mds_), logger(NULL), filer(mds_->objecter, mds_->finisher)
56 * Progress the queue. Call this after enqueuing something or on
57 * completion of something.
59 void RecoveryQueue::advance()
61 dout(10) << file_recover_queue.size() << " queued, "
62 << file_recover_queue_front.size() << " prioritized, "
63 << file_recovering.size() << " recovering" << dendl;
65 while (file_recovering.size() < g_conf->mds_max_file_recover) {
66 if (!file_recover_queue_front.empty()) {
67 CInode *in = *file_recover_queue_front.begin();
68 file_recover_queue_front.erase(file_recover_queue_front.begin());
69 file_recover_queue.erase(in);
71 } else if (!file_recover_queue.empty()) {
72 CInode *in = *file_recover_queue.begin();
73 file_recover_queue.erase(file_recover_queue.begin());
80 logger->set(l_mdc_num_recovering_processing, file_recovering.size());
81 logger->set(l_mdc_num_recovering_enqueued, file_recover_queue.size());
82 logger->set(l_mdc_num_recovering_prioritized, file_recover_queue_front.size());
85 void RecoveryQueue::_start(CInode *in)
87 inode_t *pi = in->get_projected_inode();
90 if (pi->client_ranges.size() && !pi->get_max_size()) {
91 mds->clog->warn() << "bad client_range " << pi->client_ranges
92 << " on ino " << pi->ino;
95 if (pi->client_ranges.size() && pi->get_max_size()) {
96 dout(10) << "starting " << in->inode.size << " " << pi->client_ranges
97 << " " << *in << dendl;
98 file_recovering.insert(in);
100 C_MDC_Recover *fin = new C_MDC_Recover(this, in);
101 filer.probe(in->inode.ino, &in->inode.layout, in->last,
102 pi->get_max_size(), &fin->size, &fin->mtime, false,
105 dout(10) << "skipping " << in->inode.size << " " << *in << dendl;
106 in->state_clear(CInode::STATE_RECOVERING);
107 mds->locker->eval(in, CEPH_LOCK_IFILE);
108 in->auth_unpin(this);
112 void RecoveryQueue::prioritize(CInode *in)
114 if (file_recovering.count(in)) {
115 dout(10) << "already working on " << *in << dendl;
119 if (file_recover_queue.count(in)) {
120 dout(20) << *in << dendl;
121 file_recover_queue_front.insert(in);
122 logger->set(l_mdc_num_recovering_prioritized, file_recover_queue_front.size());
126 dout(10) << "not queued " << *in << dendl;
131 * Given an authoritative inode which is in the cache,
132 * enqueue it for recovery.
134 void RecoveryQueue::enqueue(CInode *in)
136 dout(15) << "RecoveryQueue::enqueue " << *in << dendl;
137 assert(logger); // Caller should have done set_logger before using me
138 assert(in->is_auth());
140 in->state_clear(CInode::STATE_NEEDSRECOVER);
141 if (!in->state_test(CInode::STATE_RECOVERING)) {
142 in->state_set(CInode::STATE_RECOVERING);
144 logger->inc(l_mdc_recovery_started);
146 file_recover_queue.insert(in);
147 logger->set(l_mdc_num_recovering_enqueued, file_recover_queue.size());
152 * Call back on completion of Filer probe on an inode.
154 void RecoveryQueue::_recovered(CInode *in, int r, uint64_t size, utime_t mtime)
156 dout(10) << "_recovered r=" << r << " size=" << size << " mtime=" << mtime
157 << " for " << *in << dendl;
160 dout(0) << "recovery error! " << r << dendl;
161 if (r == -EBLACKLISTED) {
165 // Something wrong on the OSD side trying to recover the size
166 // of this inode. In principle we could record this as a piece
167 // of per-inode damage, but it's actually more likely that
168 // this indicates something wrong with the MDS (like maybe
169 // it has the wrong auth caps?)
170 mds->clog->error() << " OSD read error while recovering size for inode 0x"
171 << std::hex << in->ino() << std::dec;
176 file_recovering.erase(in);
177 logger->set(l_mdc_num_recovering_processing, file_recovering.size());
178 logger->inc(l_mdc_recovery_completed);
179 in->state_clear(CInode::STATE_RECOVERING);
181 if (!in->get_parent_dn() && !in->get_projected_parent_dn()) {
182 dout(10) << " inode has no parents, killing it off" << dendl;
183 in->auth_unpin(this);
184 mds->mdcache->remove_inode(in);
187 mds->locker->check_inode_max_size(in, true, 0, size, mtime);
188 mds->locker->eval(in, CEPH_LOCK_IFILE);
189 in->auth_unpin(this);