bitbake: hashserv: Postgres adaptations for ignoring duplicate inserts

Hash Equivalence server performs unconditional insert also of duplicate
hash entries. This causes excessive error log entries in Postgres.
Rather ignore the duplicate inserts.

The alternate behavior should be isolated to the postgres
engine type.

Signed-off-by: Tobias Hagelborn <tobiasha@axis.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Joshua Watt <JPEWhacker@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 38 insertions, 15 deletions

diff --git a/lib/hashserv/sqlalchemy.py b/lib/hashserv/sqlalchemy.py
index 0e28d738f..fc3ae3d33 100644
--- a/lib/hashserv/sqlalchemy.py
+++ b/lib/hashserv/sqlalchemy.py
@@ -33,6 +33,7 @@ from sqlalchemy import (
 import sqlalchemy.engine
 from sqlalchemy.orm import declarative_base
 from sqlalchemy.exc import IntegrityError
+from sqlalchemy.dialects.postgresql import insert as postgres_insert
 
 Base = declarative_base()
 
@@ -283,9 +284,7 @@ class Database(object):
     async def unihash_exists(self, unihash):
         async with self.db.begin():
             result = await self._execute(
-                select(UnihashesV3)
-                .where(UnihashesV3.unihash == unihash)
-                .limit(1)
+                select(UnihashesV3).where(UnihashesV3.unihash == unihash).limit(1)
             )
 
             return result.first() is not None
@@ -435,18 +434,30 @@ class Database(object):
             return result.rowcount
 
     async def insert_unihash(self, method, taskhash, unihash):
-        try:
-            async with self.db.begin():
-                await self._execute(
-                    insert(UnihashesV3).values(
-                        method=method,
-                        taskhash=taskhash,
-                        unihash=unihash,
-                        gc_mark=self._get_config_subquery("gc-mark", ""),
-                    )
+        # Postgres specific ignore on insert duplicate
+        if self.engine.name == "postgresql":
+            statement = (
+                postgres_insert(UnihashesV3)
+                .values(
+                    method=method,
+                    taskhash=taskhash,
+                    unihash=unihash,
+                    gc_mark=self._get_config_subquery("gc-mark", ""),
                 )
+                .on_conflict_do_nothing(index_elements=("method", "taskhash"))
+            )
+        else:
+            statement = insert(UnihashesV3).values(
+                method=method,
+                taskhash=taskhash,
+                unihash=unihash,
+                gc_mark=self._get_config_subquery("gc-mark", ""),
+            )
 
-            return True
+        try:
+            async with self.db.begin():
+                result = await self._execute(statement)
+                return result.rowcount != 0
         except IntegrityError:
             self.logger.debug(
                 "%s, %s, %s already in unihash database", method, taskhash, unihash
@@ -461,10 +472,22 @@ class Database(object):
         if "created" in data and not isinstance(data["created"], datetime):
             data["created"] = datetime.fromisoformat(data["created"])
 
+        # Postgres specific ignore on insert duplicate
+        if self.engine.name == "postgresql":
+            statement = (
+                postgres_insert(OuthashesV2)
+                .values(**data)
+                .on_conflict_do_nothing(
+                    index_elements=("method", "taskhash", "outhash")
+                )
+            )
+        else:
+            statement = insert(OuthashesV2).values(**data)
+
         try:
             async with self.db.begin():
-                await self._execute(insert(OuthashesV2).values(**data))
-            return True
+                result = await self._execute(statement)
+                return result.rowcount != 0
         except IntegrityError:
             self.logger.debug(
                 "%s, %s already in outhash database", data["method"], data["outhash"]