Migrate to postgres error #8575
Comments
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Hey @michaelschefczyk, I'm afraid that this looks like the same failure mode as #8538. Please drop the
I also see we generate an exception due to incorrect handling of exceptions. I've made a PR to fix that: #8585 |
I noticed in #8575 that the `end_error` variable in `synapse_port_db` is set to an `Exception`, even though later we expect it to be a `str`. This PR simply casts an exception raised to a string. I'm doing this instead of having `end_error` be of type exception as we explicitly set `end_error` to a str here: https://github.com/matrix-org/synapse/blob/d25eb8f3709965d0face01a041d5292490bf0139/scripts/synapse_port_db#L542-L547 This whole file could probably use some heavy refactoring, but until then at least this fix will prevent exception contents from being hidden from us and users.
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@anoadragon453 can we close this? |
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Thank you very much! This can be closed. The system did start after conversion to postgres. I did not verify all issues with my own postgres setup, but that is outside the scope of my question here. |
Having solved this issue: #8538 I would like to migrate from sqlite to postgres. My homeserver runs based on a freshly built synapse-1.21.2 docker container.
Can someone please be so kind to help me to interpret the error message below? It pops up when running synapse_port_db. When I open the sqlite db with an sqlbrowser, table "events" seems to contain "count_as_unread". However, my knowledge of sqlite is just very basic.
Traceback (most recent call last):
File "/usr/local/bin/synapse_port_db", line 624, in run
consumeErrors=True,
twisted.internet.defer.FirstError: FirstError[#51, [Failure instance: Traceback: <class 'psycopg2.errors.UndefinedColumn'>: FEHLER: Spalte »count_as_unread« von Relation »events« existiert nicht
LINE 1: ...gin_server_ts, received_ts, sender, contains_url, count_as_u...
^
/usr/local/lib/python3.7/site-packages/twisted/internet/defer.py:501:errback
/usr/local/lib/python3.7/site-packages/twisted/internet/defer.py:568:_startRunCallbacks
/usr/local/lib/python3.7/site-packages/twisted/internet/defer.py:654:_runCallbacks
/usr/local/lib/python3.7/site-packages/twisted/internet/defer.py:1475:gotResult
--- ---
/usr/local/lib/python3.7/site-packages/twisted/internet/defer.py:1416:_inlineCallbacks
/usr/local/lib/python3.7/site-packages/twisted/python/failure.py:512:throwExceptionIntoGenerator
/usr/local/bin/synapse_port_db:388:handle_table
/usr/local/lib/python3.7/site-packages/synapse/storage/database.py:577:runInteraction
/usr/local/lib/python3.7/site-packages/synapse/storage/database.py:647:runWithConnection
/usr/local/lib/python3.7/site-packages/twisted/python/threadpool.py:250:inContext
/usr/local/lib/python3.7/site-packages/twisted/python/threadpool.py:266:
/usr/local/lib/python3.7/site-packages/twisted/python/context.py:122:callWithContext
/usr/local/lib/python3.7/site-packages/twisted/python/context.py:85:callWithContext
/usr/local/lib/python3.7/site-packages/twisted/enterprise/adbapi.py:306:_runWithConnection
/usr/local/lib/python3.7/site-packages/twisted/python/compat.py:464:reraise
/usr/local/lib/python3.7/site-packages/twisted/enterprise/adbapi.py:297:_runWithConnection
/usr/local/lib/python3.7/site-packages/synapse/storage/database.py:641:inner_func
/usr/local/lib/python3.7/site-packages/synapse/storage/database.py:447:new_transaction
/usr/local/bin/synapse_port_db:376:insert
/usr/local/bin/synapse_port_db:195:insert_many_txn
/usr/local/lib/python3.7/site-packages/synapse/storage/database.py:215:executemany
/usr/local/lib/python3.7/site-packages/synapse/storage/database.py:238:_do_execute
]]
Traceback (most recent call last):
File "/usr/local/bin/synapse_port_db", line 1104, in
sys.stderr.write(end_error)
TypeError: write() argument must be str, not FirstError
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