Swap space size recommendations issued for Red Hat Enterprise Linux 6.0, 6.1, and 6.2 differed from the current recommendations, which were first issued with the release of Red Hat Enterprise Linux 6.3 in June 2012 and did not account for hibernation space.

  1. Fs 2 6 0 – Note Manager Job Duties
  2. Fs 2 6 0 – Note Manager Job Openings
  3. Fs 2 6 0 – Note Manager Jobs
  4. Fs 2 6 0 – Note Manager Job Description

Setting up HiveServer2 job credential provider. Starting Hive 2.2.0 onwards (see HIVE-14822) Hiveserver2 supports job specific hadoop credential provider for MR and Spark jobs. When using encrypted passwords via the Hadoop Credential Provider, HiveServer2 needs to forward enough information to the job configuration so that jobs launched across. Device Software Manager searches the same network segment as your PC and displays a list of supported multifunction products and printers. When a device is selected from the list, its IP address and other network information is acquired for driver setup. 1,093 Fs Manager jobs available on Indeed.com. Apply to Customer Service Manager, Area Manager, Para Educator and more! Job Functions of a Finance Manager. Here are a few of the responsibilities that are given to a finance manager in the workplace: Assure that the office systems that are being used in financial functions and services are efficient and can still keep up with the trend applied in different financial activities.

  • Standalone Cluster High Availability
  • YARN Cluster High Availability

Overview

The JobManager coordinates every Flink deployment. It is responsible for both scheduling and resource management.

By default, there is a single JobManager instance per Flink cluster. This creates a single point of failure (SPOF): if the JobManager crashes, no new programs can be submitted and running programs fail.

With JobManager High Availability, you can recover from JobManager failures and thereby eliminate the SPOF. You can configure high availability for both standalone and YARN clusters.

See more HA implementation details in JobManager High Availability in the Flink wiki.

Standalone Cluster High Availability

The general idea of JobManager high availability for standalone clusters is that there is a single leading JobManager at any time and multiple standby JobManagers to take over leadership in case the leader fails. This guarantees that there is no single point of failure and programs can make progress as soon as a standby JobManager has taken leadership. There is no explicit distinction between standby and master JobManager instances. Each JobManager can take the role of master or standby.

As an example, consider the following setup with three JobManager instances:

Configuration

To enable JobManager High Availability you have to set the high-availability mode to zookeeper, configure a ZooKeeper quorum and set up a masters file with all JobManagers hosts and their web UI ports.

Flink leverages ZooKeeper for distributed coordination between all running JobManager instances. ZooKeeper is a separate service from Flink, which provides highly reliable distributed coordination via leader election and light-weight consistent state storage. Check out ZooKeeper’s Getting Started Guide for more information about ZooKeeper. Flink includes scripts to bootstrap a simple ZooKeeper installation.

Masters File (masters)

In order to start an HA-cluster configure the masters file in conf/masters:

  • masters file: The masters file contains all hosts, on which JobManagers are started, and the ports to which the web user interface binds.

By default, the job manager will pick a random port for inter process communication. You can change this via the high-availability.jobmanager.port key. This key accepts single ports (e.g. 50010), ranges (50000-50025), or a combination of both (50010,50011,50020-50025,50050-50075).

Config File (flink-conf.yaml)

In order to start an HA-cluster add the following configuration keys to conf/flink-conf.yaml:

  • high-availability mode (required): The high-availability mode has to be set in conf/flink-conf.yaml to zookeeper in order to enable high availability mode.Alternatively this option can be set to FQN of factory class Flink should use to create HighAvailabilityServices instance.

  • ZooKeeper quorum (required): A ZooKeeper quorum is a replicated group of ZooKeeper servers, which provide the distributed coordination service.

    Each addressX:port refers to a ZooKeeper server, which is reachable by Flink at the given address and port.

  • ZooKeeper root (recommended): The root ZooKeeper node, under which all cluster nodes are placed.

  • ZooKeeper cluster-id (recommended): The cluster-id ZooKeeper node, under which all required coordination data for a cluster is placed.

    Important: You should not set this value manually when running a YARNcluster, a per-job YARN session, or on another cluster manager. In thosecases a cluster-id is automatically being generated based on the applicationid. Manually setting a cluster-id overrides this behaviour in YARN.Specifying a cluster-id with the -z CLI option, in turn, overrides manualconfiguration. If you are running multiple Flink HA clusters on bare metal,you have to manually configure separate cluster-ids for each cluster.

  • Storage directory (required): JobManager metadata is persisted in the file system storageDir and only a pointer to this state is stored in ZooKeeper.

    The storageDir stores all metadata needed to recover a JobManager failure.

After configuring the masters and the ZooKeeper quorum, you can use the provided cluster startup scripts as usual. They will start an HA-cluster. Keep in mind that the ZooKeeper quorum has to be running when you call the scripts and make sure to configure a separate ZooKeeper root path for each HA cluster you are starting.

Fs 2 6 0 – Note Manager Job

Fs 2 6 0 – Note Manager Job Duties

Example: Standalone Cluster with 2 JobManagers

  1. Configure high availability mode and ZooKeeper quorum in conf/flink-conf.yaml:

  2. Configure masters in conf/masters:

  3. Configure ZooKeeper server in conf/zoo.cfg (currently it’s only possible to run a single ZooKeeper server per machine):

  4. Start ZooKeeper quorum:

  5. Start an HA-cluster:

  6. Stop ZooKeeper quorum and cluster:

YARN Cluster High Availability

When running a highly available YARN cluster, we don’t run multiple JobManager (ApplicationMaster) instances, but only one, which is restarted by YARN on failures. The exact behaviour depends on on the specific YARN version you are using.

Note

Configuration

Maximum Application Master Attempts (yarn-site.xml)

You have to configure the maximum number of attempts for the application masters for your YARN setup in yarn-site.xml:

The default for current YARN versions is 2 (meaning a single JobManager failure is tolerated).

Application Attempts (flink-conf.yaml)

In addition to the HA configuration (see above), you have to configure the maximum attempts in conf/flink-conf.yaml:

This means that the application can be restarted 9 times for failed attempts before YARN fails the application (9 retries + 1 initial attempt). Additional restarts can be performed by YARN if required by YARN operations: Preemption, node hardware failures or reboots, or NodeManager resyncs. These restarts are not counted against yarn.application-attempts, see Jian Fang’s blog post. It’s important to note that yarn.resourcemanager.am.max-attempts is an upper bound for the application restarts. Therefore, the number of application attempts set within Flink cannot exceed the YARN cluster setting with which YARN was started.

Fs 2 6 0 – Note Manager Job Openings

Container Shutdown Behaviour

Fs 2 6 0 – Note Manager Jobs

  • YARN 2.3.0 < version < 2.4.0. All containers are restarted if the application master fails.
  • YARN 2.4.0 < version < 2.6.0. TaskManager containers are kept alive across application master failures. This has the advantage that the startup time is faster and that the user does not have to wait for obtaining the container resources again.
  • YARN 2.6.0 <= version: Sets the attempt failure validity interval to the Flinks’ Akka timeout value. The attempt failure validity interval says that an application is only killed after the system has seen the maximum number of application attempts during one interval. This avoids that a long lasting job will deplete it’s application attempts.

Note: Hadoop YARN 2.4.0 has a major bug (fixed in 2.5.0) preventing container restarts from a restarted Application Master/Job Manager container. See FLINK-4142 for details. We recommend using at least Hadoop 2.5.0 for high availability setups on YARN.

Example: Highly Available YARN Session

  1. Configure HA mode and ZooKeeper quorum in conf/flink-conf.yaml:

  2. Configure ZooKeeper server in conf/zoo.cfg (currently it’s only possible to run a single ZooKeeper server per machine):

  3. Start ZooKeeper quorum:

  4. Start an HA-cluster:

Configuring for Zookeeper Security

If ZooKeeper is running in secure mode with Kerberos, you can override the following configurations in flink-conf.yaml as necessary:

For more information on Flink configuration for Kerberos security, please see here.You can also find here further details on how Flink internally setups Kerberos-based security.

Zookeeper Versions

Flink ships with separate Zookeeper clients for 3.4 and 3.5, with 3.4 being in the lib directory of the distributionand thus used by default, whereas 3.5 is placed in the opt directory.

The 3.5 client allows you to secure the Zookeeper connection via SSL, but may not work with 3.4- Zookeeper installations.

You can control which version is used by Flink by placing either jar in the lib directory.

Bootstrap ZooKeeper

If you don’t have a running ZooKeeper installation, you can use the helper scripts, which ship with Flink.

There is a ZooKeeper configuration template in conf/zoo.cfg. You can configure the hosts to run ZooKeeper on with the server.X entries, where X is a unique ID of each server:

The script bin/start-zookeeper-quorum.sh will start a ZooKeeper server on each of the configured hosts. The started processes start ZooKeeper servers via a Flink wrapper, which reads the configuration from conf/zoo.cfg and makes sure to set some required configuration values for convenience. In production setups, it is recommended to manage your own ZooKeeper installation.

Kurtzke Expanded Disability Status Scale

The Kurtzke Disability Status Scale (DSS) was developed by Dr. John Kurtzke in the 1950s to measure the disability status of people with MS. The purpose was to create an objective approach to quantify the level of functioning that could be widely used by health care providers diagnosing MS. The scale was modified several times to more accurately reflect the levels of disabilities clinically observed. The scale was renamed the Kurtzke Expanded Disability Status Scale (EDSS).

The EDSS provides a total score on a scale that ranges from 0 to 10. The first levels 1.0 to 4.5 refer to people with a high degree of ambulatory ability and the subsequent levels 5.0 to 9.5 refer to the loss of ambulatory ability.

Kurtzke Expanded Disability Status Scale (EDSS)

0.0

Normal neurological exam (all grade 0 in all Functional System (FS) scores*).

1.0

https://torrentbucket.mystrikingly.com/blog/how-to-download-office-365-for-mac-free. No disability, minimal signs in one FS* (i.e., grade 1).

1.5

No disability, minimal signs in more than one FS* (more than 1 FS grade 1).

2.0

Minimal disability in one FS (one FS grade 2, others 0 or 1).

2.5

Minimal disability in two FS (two FS grade 2, others 0 or 1).

3.0

Moderate disability in one FS (one FS grade 3, others 0 or 1) or mild disability in three or four FS (three or four FS grade 2, others 0 or 1) though fully ambulatory.

Mustang money slot machine. 3.5

Fully ambulatory but with moderate disability in one FS (one grade 3) and one or two FS grade 2; or two FS grade 3 (others 0 or 1) or five grade 2 (others 0 or 1).

4.0

Fully ambulatory without aid, self-sufficient, up and about some 12 hours a day despite relatively severe disability consisting of one FS grade 4 (others 0 or 1), or combination of lesser grades exceeding limits of previous steps; able to walk without aid or rest greater than 500 meters.

4.5

Fully ambulatory without aid, up and about much of the day, able to work a full day, may otherwise have some limitation of full activity or require minimal assistance; characterized by relatively severe disability usually consisting of one FS grade 4 (others or 1) or combinations of lesser grades exceeding limits of previous steps; able to walk without aid or rest greater than 300 meters.

5.0

Ambulatory without aid or rest for about 200 meters; disability severe enough to impair full daily activities (e.g., to work a full day without special provisions); (Usual FS equivalents are one grade 5 alone, others 0 or 1; or combinations of lesser grades usually exceeding specifications for step 4.0

5.5

https://softwarewave.mystrikingly.com/blog/iphone-program-indirme. Ambulatory without aid for about 100 meters; disability severe enough to preclude full daily activities; (Usual FS equivalents are one grade 5 alone, others 0 or 1; or combination of lesser grades usually exceeding those for step 4.0).

6.0

Intermittent or unilateral constant assistance (cane, crutch, brace) required to walk about 100 meters with or without resting; (Usual FS equivalents are combinations with more than two FS grade 3+).

6.5

Constant bilateral assistance (canes, crutches, braces) required to walk about 20 meters without resting; (Usual FS equivalents are combinations with more than two FS grade 3+).

7.0

Unable to walk beyond approximately 5 meters even with aid, essentially restricted to wheelchair; wheels self in standard wheelchair and transfers alone; up and about in wheelchair some 12 hours a day; (Usual FS equivalents are combinations with more than one FS grade 4+; very rarely pyramidal grade 5 alone).

7.5

Unable to take more than a few steps; restricted to wheelchair; may need aid in transfer; wheels self but cannot carry on in standard wheelchair a full day; May require motorized wheelchair; (Usual FS equivalents are combinations with more than one FS grade 4+).

8.0

Essentially restricted to bed or chair or perambulated in wheelchair, but may be out of bed itself much of the day; retains many self-care functions; generally has effective use of arms; (Usual FS equivalents are combinations, generally grade 4+ in several systems).

8.5

Essentially restricted to bed much of day; has some effective use of arm(s); retains some self-care functions; (Usual FS equivalents are combinations, generally 4+ in several systems).

9.0

Helpless bed patient; can communicate and eat; (Usual FS equivalents are combinations, mostly grade 4+).

9.5

Totally helpless bed patient; unable to communicate effectively or eat/swallow; (Usual FS equivalents are combinations, almost all grade 4+).

10.0

Death due to MS

* Excludes cerebral function grade 1.

Note 1: EDSS steps 1.0 to 4.5 refer to patients who are fully ambulatory and the precise step number is defined by the Functional System score(s). EDSS steps 5.0 to 9.5 are defined by the impairment to ambulation and usual equivalents in Functional Systems scores are provided.

Note 2: EDSS should not change by 1.0 step unless there is a change in the same direction of at least one step in at least one FS.

In addition, it also provides eight subscale measurements called Functional System (FS) scores. The levels of function within each category refer to the eight functional systems affected by MS.

Eight Functional Systems and Their Abbreviations

  1. Pyramidal (motor function) (P)
  2. Cerebellar (C11)
  3. Brainstem (BS)
  4. Sensory (S)
  5. Bowel and Bladder (BB)
  6. Visual (V)
  7. Cerebral or Mental (Cb)
  8. Other (O)

Fs 2 6 0 – Note Manager Job Description

The FS are scored on a scale of 0 (low level of problems) to 5 or 6 (high level of problems) to best reflect the level of disability observed clinically. The “Other” category consists of any other neurologic findings attributed to MS and is dichotomous, with 0 as none and 1 as any present.

In contrast, the total EDSS score is determined by two factors: gait and FS scores. EDSS scores below 4.0 are determined by the FS scores alone. People with EDSS scores of 4.0 and above may have some degree of gait impairment. Scores between 4.0 and 9.5 are determined by both gait abilities and the FS scores. For simplicity, many experts gauge the EDSS scores between 4.0 and 9.5 entirely by gait, without considering the FS scores. The EDSS is widely used and accepted as a valid tool to clinically measure and evaluate MS patients’ level of functioning.