Hsqldb Server, alias does not exist - server

According to the log the server was startet with alias "myrepos" as expected.
But if I try to connect to this alias, I get an error, also visible in the log (last line).
What could be the cause?
[Server#28fc19eb]: Initiating startup sequence...
[Server#28fc19eb]: Server socket opened successfully in 6 ms.
[Server#28fc19eb]: Database [index=0, id=0, db=file:/Users/t..../myrepos, alias=myrepos ] opened sucessfully in 1238 ms.
[Server#28fc19eb]: Startup sequence completed in 1247 ms.
[Server#28fc19eb]: 2016-04-08 10:32:33.871 HSQLDB server 2.3.3 is online on port 9001
[Server#28fc19eb]: To close normally, connect and execute SHUTDOWN SQL
[Server#28fc19eb]: From command line, use [Ctrl]+[C] to abort abruptly
[Server#28fc19eb]: [Thread[HSQLDB Connection #2304d78b,5,HSQLDB Connections #28fc19eb]]: database alias=myrepos does not exist

Solved. I had spaces behind the database name in my configuration, which had been incorporated to the alias: 'alias=myrepos ]'
So, the alias actually wasn't "myrepos" but "myrepos "

Related

quickstart error - Using EF Migrations for local SQL Server and keep loosing db connection

I am following IdentityServer4 quickstart and trying to migrate in memory data to my local SQL Server (not SQL express or LocalDB that came with VS). My connection string is:
#"Server=localhost,1434;Database=MyIDS;user id=tester_1;Password=tester_1;trusted_connection=yes;".
When I start my IdentityServer, it creates the enpty db, MyIDS, and then throw an exception with 2 inner exceptions:
Inner Exception 1:
SqlException: A connection was successfully established with the server, but then an error occurred during the pre-login handshake. (provider: TCP Provider, error: 0 - An established connection was aborted by the software in your host machine.)
Inner Exception 2:
Win32Exception: An established connection was aborted by the software in your host machine.
Can anyone tell me what's going on here? Why a working connection always gets dropped?
localhost,1434 looks wrong, you don't need to provide the port 1434 and the commma should not be used either, it should be a colon in that case.
I typically use for local development:
server=.;Database=ASPIdentity;Trusted_Connection=True;
dot means localhost, if you use sqlexpress the connetion string would become
server=.\\sqlexpress;Database=ASPIdentity;Trusted_Connection=True;

Entity framework with db mode cannot connect to server

I am trying to connect to by db instance using db first, I created a connection
<add name="Entities"
connectionString="metadata=res://*/Models.ModelCmarket.csdl|res://*/Models.ModelCmarket.ssdl|res://*/Models.ModelCmarket.msl;provider=System.Data.SqlClient;provider connection string="data source=(localdb)\v12.0;initial catalog=Cevaheer;integrated security=True;trustservercertificate=False;multisubnetfailover=True;MultipleActiveResultSets=True;multipleactiveresultsets=True;App=EntityFramework""
providerName="System.Data.EntityClient" />
And I always get an error -
A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: SQL Network Interfaces, error: 50 - Local Database Runtime error occurred. The specified LocalDB instance does not exist.)
But if i try
<add name="CevhermarketEntities"
connectionString="Data source=(localdb)\v12.0;initial catalog=Cevaheer;integrated security=True;trustservercertificate=False;multisubnetfailover=True;MultipleActiveResultSets=True;user id=dbuser;password=flexsin#123!;multipleactiveresultsets=True;"
providerName="System.Data.SqlClient" />
I can connect, and also can connect from VS sql server explorer and SSMS.
To begin - there are 4 issues that could be causing the common LocalDb SqlExpress Sql Server connectivity errors SQL Network Interfaces, error: 50 - Local Database Runtime error occurred, before you begin you need to rename the v11 or v12 to (localdb)\mssqllocaldb
You dont have the services running
You don't have the firelwall ports here
configured
Your install has and issue/corrupt (the steps below help give you a nice clean start)
You did not rename the V11 or 12 to mssqllocaldb
I found that the simplest is to do the below - I have attached the pics and steps for help.
First verify which instance you have installed, you can do this by checking the registry and by running cmd
cmd> Sqllocaldb.exe i
cmd> Sqllocaldb.exe s "whicheverVersionYouWantFromListBefore"
if this step fails, you can delete with option d cmd> Sqllocaldb.exe d "someDb"
cmd> Sqllocaldb.exe c "createSomeNewDbIfyouWantDb" create - the pic is error
cmd> Sqllocaldb.exe start "createSomeNewDbIfyouWantDb"

mongodb grails simple application times out

I'm having an issue with mongodb 2.6.5 and grails 2.4.4 that I can't resolve. For the sake of isolating the problem I created a simple 2.4.4 grails app, installed the grails mongodb plugin (compile ":mongodb:3.0.2"), commented out the hibernate dependencies, added my mongodb datasource, and set up a simple domain class (com.nerds.Nerd). When I generate-all and then start the app and navigate to the NerdController CRUD page I get the following error every time:
MongoTimeoutException occurred when processing request: [GET] /MONGO/nerd/index
Timed out while waiting to connect after 10000 ms. Stacktrace follows:
com.mongodb.MongoTimeoutException: Timed out while waiting to connect after 10000 ms
I can access mongo via http using http://localhost:28017/
I have also tested manually adding data and querying from mongo. This all works fine.
In the debug log prior to the timeout it looks like GORM aquired a mongo session and then tried rolling back a transaction.
DatastoreTransactionManager:128 - Found thread-bound Session [org.grails.datastore.mapping.mongo.MongoSession#e47ee6] for Datastore transaction
DatastoreTransactionManager:128 - Creating new transaction with name [null]: PROPAGATION_REQUIRED,ISOLATION_DEFAULT,readOnly
DatastoreTransactionManager:128 - Initiating transaction rollback
DatastoreTransactionManager:128 - Rolling back Datastore transaction on Session [org.grails.datastore.mapping.mongo.MongoSession#e47ee6]
DatastoreTransactionManager:128 - Resuming suspended transaction after completion of inner transaction
Any insight would be helpful. Thanks
edit: The mongo datasource is pretty simple. I'm using the correct port.
From the mongo log:
014-11-18T13:10:13.388-0900 [initandlisten] MongoDB starting : pid=17275 port=27017 dbpath=/var/lib/mongodb 32-bit host=enterprise
from DataSource.groovy
grails { mongo { host = 'localhost' port = 27017 databaseName = 'mydb' } }
I'm fairly certain the issue was on the mongod side. I stopped the mongo daemon, put it into high verbose debug mode (using mongod -vvvv command), and when I tried to replicate the issue while watching the console output, the issue did not happen. I'm not entirely sure what the exact cause of the timeout was, but its not happening now. Thanks for the responses.

Postgres crashes for long query

My postgres crashes for long query. It's on Debian 7 64bit, and postgresql-9.3.2. I uses all default configuration. Could anyone suggest what problem it could be? thanks.
--part1:
SELECT r1.f2 as b, r1.e as l
FROM r r8,r r7,r r6,r r5,r r4,r r3,r r2,r r1
WHERE
r1.f2=r2.f1 AND
r1.f2=r3.f1 AND
r1.f2=r4.f1 AND
r1.f1=r5.f2 AND
r1.f1=r8.f1 AND
r2.f1=r3.f1 AND
r2.f1=r4.f1 AND
r2.f2=r6.f2 AND
r2.f2=r7.f1 AND
r3.f1=r4.f1 AND
r3.f2=r7.f2 AND
r3.f2=r8.f2 AND
r4.f2=r5.f1 AND
r4.f2=r6.f1 AND
r5.f1=r6.f1 AND
r5.f2=r8.f1 AND
r6.f2=r7.f1 AND
r7.f2=r8.f2 AND
r1.d=1 AND
r2.d=1 AND
r3.d=2 AND
r4.d=2 AND
r5.d=2 AND
r6.d=2 AND
r7.d=2 AND
r8.d=2
-- part2
group by r1.f2,r1.e
having
calc_empty_a() AND
calc_empty_b();
In the query, calc_empty_a() are just empty boolean functions (return true), so they should have no problem.
If I run the query in client, the server crashes. There is nothing useful information in the log (please refer to the error info at end of the post).
If I run the part 1 query, the query works well.
If I first run the part 1 query, then I run the whole query, it works well.
If I change the query, reduce the r numbers, for example, there are only r1 to r6 FROM tables, delete the predicates with r8, r7, but keep the part 2's GROUP BY and HAVING clause. The query still works well.
If the query have one empty function in HVING clause, the query also works well, but will crash if there are two functions.
The following query works well
SELECT r1.f2 as b, r1.f1 as a , r1.e as e
FROM r r8,r r7,r r6,r r5,r r4,r r3,r r2,r r1
WHERE
r1.f2=r2.f1 AND
r1.f2=r3.f1 AND
r1.f2=r4.f1 AND
r1.f1=r5.f2 AND
r1.f1=r8.f1 AND
r2.f1=r3.f1 AND
r2.f1=r4.f1 AND
r2.f2=r6.f2 AND
r2.f2=r7.f1 AND
r3.f1=r4.f1 AND
r3.f2=r7.f2 AND
r3.f2=r8.f2 AND
r4.f2=r5.f1 AND
r4.f2=r6.f1 AND
r5.f1=r6.f1 AND
r5.f2=r8.f1 AND
r6.f2=r7.f1 AND
r7.f2=r8.f2
group by r1.f2,r1.f1, r1.e
having
calc_empty_a() AND
calc_empty_a();
I have set the os to use strict overcommit mode:
sysctl -w vm.overcommit_memory=2
Error info:
at client
The connection to the server was lost. Attempting reset: Succeeded.
at server
LOG: terminating any other active server processes
WARNING: terminating connection because of crash of another server process
DETAIL: The postmaster has commanded this server process to roll back the current transaction and exit, because another server process exited abnormally and possibly corrupted shared memory.
HINT: In a moment you should be able to reconnect to the database and repeat your command.
WARNING: terminating connection because of crash of another server process
DETAIL: The postmaster has commanded this server process to roll back the current transaction and exit, because another server process exited abnormally and possibly corrupted shared memory.
HINT: In a moment you should be able to reconnect to the database and repeat your command.
LOG: all server processes terminated; reinitializing
LOG: database system was interrupted; last known up at 2014-11-07 16:47:03 GMT
LOG: database system was not properly shut down; automatic recovery in progress
LOG: redo starts at 0/2126C98
LOG: record with zero length at 0/21A9D98
LOG: redo done at 0/21A9D68
LOG: last completed transaction was at log time 2014-11-07 16:47:26.844406+00
LOG: autovacuum launcher started
LOG: database system is ready to accept connections

SQL Server 2008 R2 - Unable to rebuild master database, Cannot shutdown service

Yesterday I noticed I could not execute any query within the master database. I tried a DBCC CHECKDB but this just hung (let it run for 24 hours). I was unable to stop the SQL Server service: "The service cannot accept control messages at this time"
I decided to try to rebuild the master database: setup /ACTION=REBUILDDATABASE /QUIET /INSTANCENAME=MYINSTANCE /SQLSYSADMINACCOUNTS=MYACCOUNT /SAPWD=MYPASSWORD
Summary.txt seems to indicate the same problem:
Detailed results:
Feature: Database Engine Services
Status: Failed: see logs for details
MSI status: Passed
Configuration status: Failed: see details below
Configuration error code: 0x0A2FBD17#1211#1
Configuration error description: The service cannot accept control messages at this time.
Configuration log: C:\Program Files\Microsoft SQL Server\100\Setup Bootstrap\Log\20140517_091501\Detail.txt
It looks like the SQL Server cannot be shutdown. What can I do about this?
"SHUTDOWN WITH NOWAIT" looks to have fixed the problem.