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Do not crash on PG re-peering events when operations are in progress

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This commit is contained in:
Vitaliy Filippov
2021-04-07 11:06:31 +03:00
parent f6d705383a
commit 97efb9e299
11 changed files with 81 additions and 79 deletions
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src/osd_peering.cpp
+21 -11
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@@ -77,10 +77,11 @@ void osd_t::repeer_pgs(osd_num_t peer_osd)
// Re-peer affected PGs
for (auto & p: pgs)
{
auto & pg = p.second;
bool repeer = false;
if (p.second.state & (PG_PEERING | PG_ACTIVE | PG_INCOMPLETE))
if (pg.state & (PG_PEERING | PG_ACTIVE | PG_INCOMPLETE))
{
for (osd_num_t pg_osd: p.second.all_peers)
for (osd_num_t pg_osd: pg.all_peers)
{
if (pg_osd == peer_osd)
{
@@ -91,8 +92,17 @@ void osd_t::repeer_pgs(osd_num_t peer_osd)
if (repeer)
{
// Repeer this pg
printf("[PG %u/%u] Repeer because of OSD %lu\n", p.second.pool_id, p.second.pg_num, peer_osd);
start_pg_peering(p.second);
printf("[PG %u/%u] Repeer because of OSD %lu\n", pg.pool_id, pg.pg_num, peer_osd);
if (!(pg.state & (PG_ACTIVE | PG_REPEERING)) || pg.inflight == 0 && !pg.flush_batch)
{
start_pg_peering(pg);
}
else
{
// Stop accepting new operations, wait for current ones to finish or fail
pg.state = pg.state & ~PG_ACTIVE | PG_REPEERING;
report_pg_state(pg);
}
}
}
}
@@ -334,9 +344,10 @@ void osd_t::submit_sync_and_list_subop(osd_num_t role_osd, pg_peering_state_t *p
{
// FIXME: Mark peer as failed and don't reconnect immediately after dropping the connection
printf("Failed to sync OSD %lu: %ld (%s), disconnecting peer\n", role_osd, op->reply.hdr.retval, strerror(-op->reply.hdr.retval));
int fail_fd = op->peer_fd;
ps->list_ops.erase(role_osd);
c_cli.stop_client(op->peer_fd);
delete op;
c_cli.stop_client(fail_fd);
return;
}
delete op;
@@ -413,9 +424,10 @@ void osd_t::submit_list_subop(osd_num_t role_osd, pg_peering_state_t *ps)
if (op->reply.hdr.retval < 0)
{
printf("Failed to get object list from OSD %lu (retval=%ld), disconnecting peer\n", role_osd, op->reply.hdr.retval);
int fail_fd = op->peer_fd;
ps->list_ops.erase(role_osd);
c_cli.stop_client(op->peer_fd);
delete op;
c_cli.stop_client(fail_fd);
return;
}
printf(
@@ -484,15 +496,13 @@ bool osd_t::stop_pg(pg_t & pg)
{
return false;
}
if (!(pg.state & PG_ACTIVE))
if (!(pg.state & (PG_ACTIVE | PG_REPEERING)))
{
finish_stop_pg(pg);
return true;
}
pg.state = pg.state & ~PG_ACTIVE | PG_STOPPING;
if (pg.inflight == 0 && !pg.flush_batch &&
// We must either forget all PG's unstable writes or wait for it to become clean
dirty_pgs.find({ .pool_id = pg.pool_id, .pg_num = pg.pg_num }) == dirty_pgs.end())
pg.state = pg.state & ~PG_ACTIVE & ~PG_REPEERING | PG_STOPPING;
if (pg.inflight == 0 && !pg.flush_batch)
{
finish_stop_pg(pg);
}