Merge pull request #3305 from lbryio/fix_migrator_tool

fix hub Elasticsearch sync/migrations tool for when the db exists already

lbry/wallet/server/db/elasticsearch/search.py

@@ -68,9 +68,9 @@ class SearchIndex:
             self.index, body={'version': version, 'index_patterns': ['ignored']}, ignore=400
         )
 
-    async def start(self):
+    async def start(self) -> bool:
         if self.sync_client:
-            return
+            return False
         hosts = [{'host': self._elastic_host, 'port': self._elastic_port}]
         self.sync_client = AsyncElasticsearch(hosts, timeout=self.sync_timeout)
         self.search_client = AsyncElasticsearch(hosts, timeout=self.search_timeout)
@@ -162,6 +162,9 @@ class SearchIndex:
             await self.sync_client.update_by_query(
                 self.index, body=self.update_filter_query(Censor.RESOLVE, blocked_channels, True), slices=4)
             await self.sync_client.indices.refresh(self.index)
+        self.clear_caches()
+
+    def clear_caches(self):
         self.search_cache.clear()
         self.short_id_cache.clear()
         self.claim_cache.clear()

lbry/wallet/server/db/elasticsearch/sync.py

@@ -12,10 +12,8 @@ from lbry.wallet.server.env import Env
 from lbry.wallet.server.coin import LBC
 from lbry.wallet.server.db.elasticsearch.search import extract_doc, SearchIndex, IndexVersionMismatch
 
-INDEX = 'claims'
 
-
-async def get_all(db, shard_num, shards_total, limit=0):
+async def get_all(db, shard_num, shards_total, limit=0, index_name='claims'):
     logging.info("shard %d starting", shard_num)
     def exec_factory(cursor, statement, bindings):
         tpl = namedtuple('row', (d[0] for d in cursor.getdescription()))
@@ -44,25 +42,26 @@ ORDER BY claim.height desc
         claim['languages'] = claim['languages'].split(' ') if claim['languages'] else []
         if num % 10_000 == 0:
             logging.info("%d/%d", num, total)
-        yield extract_doc(claim, INDEX)
+        yield extract_doc(claim, index_name)
         if 0 < limit <= num:
             break
 
 
-async def consume(producer):
+async def consume(producer, index_name):
     env = Env(LBC)
     logging.info("ES sync host: %s:%i", env.elastic_host, env.elastic_port)
     es = AsyncElasticsearch([{'host': env.elastic_host, 'port': env.elastic_port}])
     try:
         await async_bulk(es, producer, request_timeout=120)
-        await es.indices.refresh(index=INDEX)
+        await es.indices.refresh(index=index_name)
     finally:
         await es.close()
 
 
-async def make_es_index():
+async def make_es_index(index=None):
     env = Env(LBC)
-    index = SearchIndex('', elastic_host=env.elastic_host, elastic_port=env.elastic_port)
+    if index is None:
+        index = SearchIndex('', elastic_host=env.elastic_host, elastic_port=env.elastic_port)
 
     try:
         return await index.start()
@@ -71,26 +70,27 @@ async def make_es_index():
             "dropping ES search index (version %s) for upgrade to version %s", err.got_version, err.expected_version
         )
         await index.delete_index()
+        await index.stop()
         return await index.start()
     finally:
         index.stop()
 
 
-async def run(args, shard):
+async def run(db_path, clients, blocks, shard, index_name='claims'):
     def itsbusy(*_):
         logging.info("shard %d: db is busy, retry", shard)
         return True
-    db = apsw.Connection(args.db_path, flags=apsw.SQLITE_OPEN_READONLY | apsw.SQLITE_OPEN_URI)
+    db = apsw.Connection(db_path, flags=apsw.SQLITE_OPEN_READONLY | apsw.SQLITE_OPEN_URI)
     db.setbusyhandler(itsbusy)
     db.cursor().execute('pragma journal_mode=wal;')
     db.cursor().execute('pragma temp_store=memory;')
 
-    producer = get_all(db.cursor(), shard, args.clients, limit=args.blocks)
-    await asyncio.gather(*(consume(producer) for _ in range(min(8, args.clients))))
+    producer = get_all(db.cursor(), shard, clients, limit=blocks, index_name=index_name)
+    await asyncio.gather(*(consume(producer, index_name=index_name) for _ in range(min(8, clients))))
 
 
 def __run(args, shard):
-    asyncio.run(run(args, shard))
+    asyncio.run(run(args.db_path, args.clients, args.blocks, shard))
 
 
 def run_elastic_sync():

tests/integration/blockchain/test_wallet_server_sessions.py

@@ -4,6 +4,7 @@ import lbry
 import lbry.wallet
 from lbry.error import ServerPaymentFeeAboveMaxAllowedError
 from lbry.wallet.network import ClientSession
+from lbry.wallet.server.db.elasticsearch.sync import run as run_sync, make_es_index
 from lbry.wallet.server.session import LBRYElectrumX
 from lbry.testcase import IntegrationTestCase, CommandTestCase
 from lbry.wallet.orchstr8.node import SPVNode
@@ -13,9 +14,6 @@ class TestSessions(IntegrationTestCase):
     """
     Tests that server cleans up stale connections after session timeout and client times out too.
     """
-
-    LEDGER = lbry.wallet
-
     async def test_session_bloat_from_socket_timeout(self):
         await self.conductor.stop_spv()
         await self.ledger.stop()
@@ -87,3 +85,31 @@ class TestUsagePayment(CommandTestCase):
         self.assertIsNotNone(await self.blockchain.get_raw_transaction(tx.id))  # verify its broadcasted
         self.assertEqual(tx.outputs[0].amount, 100000000)
         self.assertEqual(tx.outputs[0].get_address(self.ledger), address)
+
+
+class TestESSync(CommandTestCase):
+    async def test_es_sync_utility(self):
+        for i in range(10):
+            await self.stream_create(f"stream{i}", bid='0.001')
+        await self.generate(1)
+        self.assertEqual(10, len(await self.claim_search(order_by=['height'])))
+        db = self.conductor.spv_node.server.db
+        await db.search_index.delete_index()
+        db.search_index.clear_caches()
+        self.assertEqual(0, len(await self.claim_search(order_by=['height'])))
+        await db.search_index.stop()
+        self.assertTrue(await make_es_index(db.search_index))
+
+        async def resync():
+            await db.search_index.start()
+            db.search_index.clear_caches()
+            await run_sync(db.sql._db_path, 1, 0, 0, index_name=db.search_index.index)
+            self.assertEqual(10, len(await self.claim_search(order_by=['height'])))
+        await resync()
+
+        # this time we will test a migration from unversioned to v1
+        await db.search_index.sync_client.indices.delete_template(db.search_index.index)
+        await db.search_index.stop()
+        self.assertTrue(await make_es_index(db.search_index))
+        await db.search_index.start()
+        await resync()