Most DDL operations, except for those listed in the section, “Share DDL Locks” require exclusive DDL locks for a resource to prevent destructive interference with other DDL operations that might modify or reference the same schema object. For example, a DROP TABLE operation is not allowed to drop a table while an ALTER TABLE operation is adding a column to it, and vice versa.
A row share table lock (also sometimes called a subshare table lock, SS ) indicates that the transaction holding the lock on the table has locked rows in the table and intends to update them. A row share table lock is automatically acquired for a table when the following SQL statement is run:.
This can be avoided by creating symbolic links in place of the configuration files, which authconfig recognizes and does not overwrite. D/password-auth configurations immutable so that they don’t get overwritten when authconfig is run”
But as per Red Hat’s hardening guide we should create symbolic links:
When modifying authentication configuration using the authconfig utility, the system-auth and password-auth files are overwritten with the settings from the authconfig utility. Hi Tomas,I saw the following:
Server is enforcing file consistency for models/player/tm_leet_variantA. After updating, everyone who tries to join my server gets these error messages and gets.
It may not be a reserved word. Valid usernames must be specified following the keyword TO in a GRANT statement to define a user. A username must begin with a letter, consist only of alphanumeric characters and the special characters $, _, and #, and be less than or equal to 30 characters. If it contains other characters, it must be enclosed in double quotation marks. Cause: No username was specified in a GRANT statement or one of the specified usernames is invalid.
The attempted operations can be done if ARCHIVEREDO LOG mode is enabled. Action: Take the tablespace offline as usual or do a shutdown abort before attempting the required operation. It is worthwhile reconsidering the backup strategy for the database.
Action: Examine the view’s WHERE clause in the dictionary table VIEWS. If the current view does not have the CHECK OPTION, then its FROM clause must reference a second view that is defined using the CHECK OPTION. To insert the row, it may be necessary to insert it directly into the underlying table, rather than through the view. The second view’s WHERE clause must also be satisfied by any INSERT or UPDATE statements.
A share row exclusive table lock held by a transaction allows other transactions to query the table (without using SELECT. Permitted Operations: Only one transaction at a time can acquire a share row exclusive table lock on a given table. FOR UPDATE) but not update the table.
And save the result to your own server. Webmaker is good for beginners, because it enforces a mobile-. And replaced it with this. Of course, you’ll have your file tree already in. But it’s close enough for most practical scenarios to allow you to check the consistency.
A valid synonym name must be specified immediately following the keyword SYNONYM in both statements. Valid synonym names must begin with a letter, consist of alphanumeric characters and the special characters $, _, and #, and be less than or equal to 30 characters. Action: Check syntax and spelling. They may not be reserved words.
Both read committed and serializable transactions use row-level locking, and both will wait if they try to change a row updated by an uncommitted concurrent transaction. The second transaction that tries to update a given row waits for the other transaction to commit or undo and release its lock. If that other transaction rolls back, the waiting transaction, regardless of its isolation mode, can proceed to change the previously locked row as if the other transaction had not existed.
Cause: Either a host language program call specified an invalid cursor or the value of the MAXOPENCURSORS option in the precompiler command were too small. All cursors must be opened using the OOPEN call before being referenced in any of the following calls: SQL, DESCRIBE, NAME, DEFINE, BIND, EXEC, FETCH, and CLOSE. If the LDA is not defined, this message is issued for the following calls: OPEN, COM, CON, ROL, and LOGOFF. The Logon Data Area (LDA) must be defined by using OLON or OLOGON.