need to choose1) The exact type of knowledge to learn (objective function)of the target function2) Representation of this target knowledge (select feature)3) A learning mechanism (estimating the training value, adjusting the weight value)LMS weighted updating Method--minimum Average methodFor each training sample Calculates h (b) using the current weight valueUpdate for each weight w: w = w + Etah (Y (b)-H (b)) * X (i)1.2.5 Final Design:The core comp
Deep understanding of Oracle RAC 12cJump to: Navigation, search
Directory
1 Overview
2 Cluster parts management and fault diagnosis
3 Operational Practices
4 new Features
5 Storage and ASM
6 problems in application design
7 managing and tuning a complex RAC environment
8 Backup and Recovery
9 Network Practice
Ten Optimizing the RAC database
One Lock and deadlock
A Parallel Queries
- cluster compon
infrastructure/network issue, please work with customer to have this checked and tested.Bug 17452853: LNX64-12.1-EF, db inst crash with LMS4 HIT ORA-600 [KJCTR_PBMSG: BADBMSG2] in 12.1.0.2Bug 17049773 Diagnostic enhancement to give additional parameter in error ORA-600 [kjctr_pbmsg: badbmsg2] in 12.1.0.1Note: This fix will not address the root cause of the error but the additional information may help with diagnosis of the cause.Bug 13917456: LNX64-12.1-UD: asm lmd hit ORA-00600 KJCTR_PBMSG: BA
layer of security Encapsulation frame-relay to start frame relay Encapsulation novell- ether specifies that the unique Novell format Encapsulation PPP used on the network segment is set as the Encapsulation method used by the serial port or ISDN interface. Encapsulation sap requires that the Ethernet 802.2 format Cisco password be used on the network segment is sapEnd exit configuration mode Erase Delete flash memory or configure cache Erase startup-config Delete content in NVRAM Exec-timeout c
1. We should look at the reviewed articles in the research field and have a general understanding of the development and technology of the entire research direction. Find the desired direction.
2. It depends on the original papers in the research field, that is, the most classic and cited papers.
Opinion: we need to carefully study the classic original algorithm and system model, and push the algorithm derivation and simulation. Write down the shortcomings of the algorithm.
3. Check the papers t
1. Other processes
Archiver (arcn)
Oneor more archiver processes copy the redo log files to archival storage whenthey are full or a log switch occurs.
Recoverer (reco)
The recoverer process is used to resolvedistributed transactions that are pending because of a network or systemfailure in a distributed database. At timed intervals, the local reco attemptsto connect to remote databasesAnd automatically complete the commit or rollbackof the local portion of any pending distributed transactions.
Several important parameters in Oracle 11g RAC
Par num describ
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_ Lm_lms 2Number of background gcs server processes to start
_ Lm_lms_waittime 3Default wait time for lms in centiseconds
_ Lm_lms_spin FALSEMake lms not sleep
_ Interconnect_checksum TRUEIf TRUE, checksum interconnect blocks
_ Reliable_block_sends TRUEIf TRUE, no s
. These policies use the concept of decentralized control to reduce the amount of online computing. However, there is still room for research in this area. Can I further reduce the online computing workload by constructing a terminal status set for each subsystem and using the offline computing Control Law and online rolling method? Based on this idea, the following research contents are proposed: (1) Research on Decentralized Predictive Control Strategies. (2) Study on the Stability of distribu
changes in behaviors, hard work, and psychological tendencies caused by the learner's experience. These changes are not caused by maturity, disease, or drugs, and do not necessarily show explicit behavior. Learning System
The changes produced by learning come from two aspects: Professor and experience. Obviously, "education" is only a source of learning changes. However, most of the current learning systems focus on "education. That is, in a specific place (if we use the e-learning system as a
Department.
# X25 map ip abcd xxxx br
Ing X.25 address, ABCD is the IP address of the Peer router (such as S0), XXXX is the peer Router
(Such as S0) X.25 port address.
# X25 htc X
The maximum number of two-way channels X ranges from 1 ~ 4095. It must be configured according to the number actually provided by the post office.
# X25 nvc X
Configure the number of permanent virtual circuits. X cannot exceed the value actually provided by the post office. Otherwise, normal data transmission will be
map capabilitiesThird-party graphics Windows (GDI parts) integrate real-time graphics generated by other software productsReal device Support-drive to connect non-standard hardware devicesVAPS Ccglite v6.3VAPS Designdoc v6.3NTI. fensap-ice.v1.0NTI. Fensap-ice. Numerical simulation system of r1.1.linux aircraft anti-icingENGINE.ANALYZER.PRO.V3.3.A038 provides software packages for professional engine designers or engineers to simulate engine improvementsVASCI Products:AutoSEA2 V2.3.1 (Noise and
)
Note: If the host is restarted by CRS, a record will be added to the file in the/etc/oracle/lastgasp/directory.
4. Check the LMON, LMS *, and LMD0 trace files of all nodes when a problem occurs.
5. View All OSW output of all nodes when a problem occurs.
-------------------------------------- Split line --------------------------------------
Install Orac
Supervised Learning
Learn a function H: X → y
H is called a hypothesis.
1. Linear Regression
In this example, X is a two-dimensional vector, x1 represents living area, and x2 represents bedrooms.
Functions/hypotheses H
Set X0 = 1.
Now, given a training set, how do we pick, or learn, the parameters θ? Now it is used to evaluate the θ parameter.
One reasonable method seems to be to make h (x) close to y,
We define the cost function: defines the loss function:
To minimize the valu
, use async memcpy FALSE_ Gc_check_bscn if TRUE, check for stale blocks TRUE_ Gc_coalesce_recovery_reads if TRUE, coalesce recovery reads TRUE_ Gc_defer_time how long to defer down converts for hot buffers 3_ Gc_dissolve_undo_affinity if TRUE, dissolve undo affinity after an offline FALSE_ Gc_dynamic_affinity_locks if TRUE, get dynamic affinity locks TRUE_ Gc_element_percent global cache element percent 103_ Gc_global_lru turn global lru off, make it automatic, or turn it on AUTO_ Gc_initiate_un
within the [0,1] interval. We also add a feature x_0 = 1 to facilitate the vector representation. The derivative of the Logistic function can be represented by the original function, i.e.This conclusion will be used when learning the parameter \theta later.2 study on model parameters of logistic regression with maximum likelihood estimation and gradient ascent method \thetaGiven the new hypotheses function H_\theta (x), how do we learn the parameter \theta based on the training sample? We can c
environment: when the Interconnect network speed is far greater than the disk I/O access speed. Here is a description of some of the concepts in cache fusionGlobal Cache Service (GCS): The global cache (SGA) involves data blocks. The global cache service is responsible for maintaining cache consistency within the global buffer store, ensuring that an instance can obtain a global lock resource at any time when it wants to modify a block of data, thereby avoiding the possibility of another insta
) with help from there os/net support. Refer DOC ID 563566.1 troubleshooting GC block lost and Poor Network performance in a RAC environmentBug 16240464:instance CRASH with ORA-00600 [KJCTR_PBMSG:BADBMSG2] in 11.2.0.3This looks-like some form of underlying infrastructure/network issue, * * with customer to has this checked a nd tested.Bug 17452853:lnx64-12.1-ef,db INST CRASH with LMS4 hits ORA-600 [KJCTR_PBMSG:BADBMSG2] in 12.1.0.2Bug 17049773 Diagnostic enhancement to give additional parameter
interface displays the opened CDP interface InformationShow cdp neighbors displays the CDP search process resultsShow dialer displays general diagnostic information for the serial interface set for DDR (digital data receiver)Show flash displays the layout and content information of flash memory.Show frame-relay LMS displays statistics about local management interfaces (LMS ).Show frame-relay map displays t
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