GC_COLLECT_CYCLES(3) 1 GC_COLLECT_CYCLES(3)gc_collect_cycles - Forces collection of any existing garbage cyclesSYNOPSIS
int gc_collect_cycles (void )
DESCRIPTION
Forces collection of any existing garbage cycles.
PARAMETERS
This function has no parameters.
RETURN VALUES
Returns number of collected cycles.
SEE ALSO
Garbage Collection.
PHP Documentation Group GC_COLLECT_CYCLES(3)
Check Out this Related Man Page
MYSQLND_MS_XA_GC(3) 1 MYSQLND_MS_XA_GC(3)mysqlnd_ms_xa_gc - Garbage collects unfinished XA transactions after severe errorsSYNOPSIS
int mysqlnd_ms_xa_gc (mixed $connection, [string $gtrid], [boolean $ignore_max_retries])
DESCRIPTION
Garbage collects unfinished XA transactions.
The XA protocol is a blocking protocol. There exist cases when servers participating in a global transaction cannot make progress when the
transaction coordinator crashes or disconnects. In such a case, the MySQL servers keep waiting for instructions to finish the XA transac-
tion in question. Because transactions occupy resources, transactions should always be terminated properly.
Garbage collection requires configuring a state store to track global transactions. Should a PHP client crash in the middle of a transac-
tion and a new PHP client be started, then the built-in garbage collection can learn about the aborted global transaction and terminate it.
If you do not configure a state store, the garbage collection cannot perform any cleanup tasks.
The state store should be crash-safe and be highly available to survive its own crash. Currently, only MySQL is supported as a state
store.
Garbage collection can also be performed automatically in the background. See the plugin configuration directive garbage_collection for
details.
Note
Experimental
The feature is currently under development. There may be issues and/or feature limitations. Do not use in production environments.
PARAMETERS
o $connection
- A MySQL connection handle obtained from any of the connect functions of the mysqli, mysql or PDO_MYSQL extensions.
o $gtrid
- Global transaction identifier (gtrid). If given, the garbage collection considers the transaction only. Otherwise, the state
store is scanned for any unfinished transaction.
o $ignore_max_retries
- Whether to ignore the plugin configuration max_retries setting. If garbage collection continuously fails and the max_retries
limit is reached prior to finishing the failed global transaction, you can attempt further runs prior to investigating the cause
and solving the issue manually by issuing appropriate SQL statements on the participants. Setting the parameter has the same
effect as temporarily setting max_retries = 0.
RETURN VALUES
Returns TRUE if garbage collection was successful. Otherwise, returns FALSE
SEE ALSO
Quickstart XA/Distributed transactions, Runtime configuration, State store configuration, mysqlnd_ms_get_stats(3).
PHP Documentation Group MYSQLND_MS_XA_GC(3)
Emergency UNIX and Linux Support !! Help Me! Forum (Request Urgent Help)
README FIRST: How to Request Emergency or Urgent Help:
You may post emergency work-related questions in the emergency forum. To post in this forum you will need to use your Bits. All questions answered on a "best... (0 Replies)
Homework Help:
On Posting Questions:
Any and all high school and undergraduate homework assignments or textbook style exercises for which you are seeking assistance are to be posted only in our Homework & Coursework Questions area--not in blogs, visitor messages, PMs, or the main technical... (0 Replies)
How to Use Code Tags in The UNIX and Linux Forums
Developer: This video tutorial was created by scott for forum users. Everyone should use code tags when posting code and command line logic in the forums.
cPF45jjWe7Q
A full list of BB codes is available here. (8 Replies)
RULES OF THE UNIX AND LINUX FORUMS
For the latest version of the community rules (the official community rules page), please visit here.
No flames, shouting (all caps), sarcasm, bullying, profanity or arrogant posts.
No negative comments about others or impolite remarks. Be patient. No... (1 Reply)
Hey,
Just added a new UserCP option so you can change the code tags to look like the code tags in this example (turn this on and off):
Note: I set the default to "SyntaxHighlighting" for debugging purposes. We can change the default back to the original code tags later.
... (36 Replies)
Having spent a lot of time over the past year taking a legacy vBulletin site (this forum) and making the site responsive on mobile; I've happy with the results; but it will soon be time to move on.
Basically, at our core, we are a LAMP (Linux, Apache2, MySQL and PHP) site, and vBulletin was... (6 Replies)
On this special Happy News Year day, 1 January 2019, I am pleased to promote Ravinder Singh to UNIX.COM Moderator, for at least the following reasons:
Ravinder Loves UNIX.COM
Ravinder has 1,372 Thanks, which puts him in the Top Ten in that important single category.
Ravinder is one of... (8 Replies)
Please join me in congratulations to Wolf Machowitsch (bakunin) for his long overdue lifetime achievement award badge from UNIX.COM in computer wizardry:
"The Order of the Wizard's Hat - Lifetime Achievement Award"
This "Order of the Wizard's Hat" is presented to Wolf Machowitsch (bakunin)... (11 Replies)
Dear All,
We were hit with a denial of service (DOS) attack today beginning around June 12th 2019 @ 01:27:51 PM from an IP address registered to "RACKWEB-NET" in Bulgaria.
I was notified about this around June 12th 2019 @ 03:05 PM and did some log file analysis and discovered how the attack... (4 Replies)
Dear All,
I am very pleased to inform everyone that Nicki Paul (zxmaus) is joining the Moderation Team after a number of years away from the site.
Nicki used to be very active here (over 800 posts), and she got busy with travel, work, family and her dogs, and we have missed her. Now she is... (7 Replies)