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when we get a lmaster request, skip updating the header when we are also the new dmaster

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(This used to be ctdb commit 6c48dcc5df7b855fc8e0774c9572c7b2af618348)
This commit is contained in:
Andrew Tridgell 2007-04-17 16:35:28 +10:00
parent 040e69c1c4
commit 1a1aedf78f
1 changed files with 20 additions and 16 deletions
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36
ctdb/common/ctdb_call.c
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@ -266,23 +266,27 @@ void ctdb_request_dmaster(struct ctdb_context *ctdb, struct ctdb_req_header *hdr
return;
}
/* fetch the current record */
ret = ctdb_ltdb_fetch(ctdb_db, key, &header, hdr, &data2);
if (ret != 0) {
ctdb_fatal(ctdb, "ctdb_req_dmaster failed to fetch record");
return;
}
/* if the new dmaster and the lmaster are the same node, then
we don't need to update the record header now */
if (c->dmaster != ctdb->vnn) {
/* fetch the current record */
ret = ctdb_ltdb_fetch(ctdb_db, key, &header, hdr, &data2);
if (ret != 0) {
ctdb_fatal(ctdb, "ctdb_req_dmaster failed to fetch record");
return;
}
/* its a protocol error if the sending node is not the current dmaster */
if (header.dmaster != hdr->srcnode) {
ctdb_fatal(ctdb, "dmaster request from non-master");
return;
}
/* its a protocol error if the sending node is not the current dmaster */
if (header.dmaster != hdr->srcnode) {
ctdb_fatal(ctdb, "dmaster request from non-master");
return;
}
header.dmaster = c->dmaster;
if (ctdb_ltdb_store(ctdb_db, key, &header, data) != 0) {
ctdb_fatal(ctdb, "ctdb_req_dmaster unable to update dmaster");
return;
header.dmaster = c->dmaster;
if (ctdb_ltdb_store(ctdb_db, key, &header, data) != 0) {
ctdb_fatal(ctdb, "ctdb_req_dmaster unable to update dmaster");
return;
}
}
/* send the CTDB_REPLY_DMASTER */