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fix for: allowing application to set transaction as PA unsafe

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The new feature which allows application to set transaction as PA unsafe
caused problems for streaming replication use cases. In apply_write_set(),
it is assumed that write set flags must be 0 for existing streaming
replication transaction. However, if SR transaction modifies non PK table,
the replicated fragment may have pa_unsafe flag.
Fixed by changing the condition detecting SR transactions to accept pa_unsafe
flag. This avoids the apply_write_set() execution from falling down to assert(0)
in the "condition tree"
This commit is contained in:
sjaakola
2021-05-21 09:15:45 +03:00
parent 8884de3503
commit 85b8150321
1 changed files with 2 additions and 1 deletions
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3
src/server_state.cpp
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@ -359,7 +359,8 @@ static int apply_write_set(wsrep::server_state& server_state,
ws_meta, ws_meta,
data); data);
} }
else if (ws_meta.flags() == 0 || wsrep::prepares_transaction(ws_meta.flags())) else if (ws_meta.flags() == 0 || ws_meta.flags() == wsrep::provider::flag::pa_unsafe ||
wsrep::prepares_transaction(ws_meta.flags()))
{ {
wsrep::high_priority_service* sa( wsrep::high_priority_service* sa(
server_state.find_streaming_applier( server_state.find_streaming_applier(