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main: secondary follows damaged primary when possible

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This commit is contained in:
Thomas Schoebel-Theuer 2020-05-01 11:47:44 +02:00
parent a9366c34c4
commit 81ef3c2d77
1 changed files with 21 additions and 0 deletions
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21
kernel/sy_old/mars_main.c
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@ -4448,6 +4448,27 @@ int make_log_finalize(struct mars_global *global, struct mars_dent *dent)
rot->current_inf.inf_host,
rot->current_inf.inf_sequence,
trans_brick->replay_current_pos);
/* Exceptionally try switchover, following a damaged
* primary (only when possible)
*/
if (rot->relevant_log &&
rot->next_relevant_log &&
is_switchover_possible(rot,
rot->relevant_log->d_path,
rot->next_relevant_log->d_path,
_get_tolerance(rot), false)) {
rot->log_is_really_damaged = false;
trans_brick->replay_code = -EAGAIN;
rot->replay_code = TL_REPLAY_RUNNING;
MARS_INF_TO(rot->log_say,
"exceptional switchover from '%s' to '%s'\n",
rot->relevant_log->d_path,
rot->next_relevant_log->d_path);
_make_new_replaylink(rot,
rot->next_relevant_log->d_rest,
rot->next_relevant_log->d_serial,
0);
}
} else if (rot->replay_code >= TL_REPLAY_RUNNING) {
rot->replay_code = trans_brick->replay_code;
}