impala-shell -h
Usage: impala_shell.py [options]
Options:
-h, --help show this help message and exit
-i IMPALAD, --impalad=IMPALAD
<host:port> of impalad to connect to
[default: master:21000]
-q QUERY, --query=QUERY
Execute a query without the shell [default: none]
-f QUERY_FILE, --query_file=QUERY_FILE
Execute the queries in the query file, delimited by ;.
If the argument to -f is "-", then queries are read
from stdin and terminated with ctrl-d. [default: none]
-k, --kerberos Connect to a kerberized impalad [default: False]
-o OUTPUT_FILE, --output_file=OUTPUT_FILE
If set, query results are written to the given file.
Results from multiple semicolon-terminated queries
will be appended to the same file [default: none]
-B, --delimited Output rows in delimited mode [default: False]
--print_header Print column names in delimited mode when pretty-
printed. [default: False]
--output_delimiter=OUTPUT_DELIMITER
Field delimiter to use for output in delimited mode
[default: \t]
-s KERBEROS_SERVICE_NAME, --kerberos_service_name=KERBEROS_SERVICE_NAME
Service name of a kerberized impalad [default: impala]
-V, --verbose Verbose output [default: True]
-p, --show_profiles Always display query profiles after execution
[default: False]
--quiet Disable verbose output [default: False]
-v, --version Print version information [default: False]
-c, --ignore_query_failure
Continue on query failure [default: False]
-r, --refresh_after_connect
Refresh Impala catalog after connecting
[default: False]
-d DEFAULT_DB, --database=DEFAULT_DB
Issues a use database command on startup
[default: none]
-l, --ldap Use LDAP to authenticate with Impala. Impala must be
configured to allow LDAP authentication.
[default: False]
-u USER, --user=USER User to authenticate with. [default: root]
--ssl Connect to Impala via SSL-secured connection
[default: False]
--ca_cert=CA_CERT Full path to certificate file used to authenticate
Impala's SSL certificate. May either be a copy of
Impala's certificate (for self-signed certs) or the
certificate of a trusted third-party CA. If not set,
but SSL is enabled, the shell will NOT verify Impala's
server certificate [default: none]
--config_file=CONFIG_FILE
Specify the configuration file to load options. The
following sections are used: [impala],
[impala.query_options]. Section names are case
sensitive. Specifying this option within a config file
will have no effect. Only specify this as an option in
the commandline. [default: /home/xxxx/.impalarc]
--live_summary Print a query summary every 1s while the query is
running. [default: False]
--live_progress Print a query progress every 1s while the query is
running. [default: False]
--auth_creds_ok_in_clear
If set, LDAP authentication may be used with an
insecure connection to Impala. WARNING: Authentication
credentials will therefore be sent unencrypted, and
may be vulnerable to attack. [default: none]
--ldap_password_cmd=LDAP_PASSWORD_CMD
Shell command to run to retrieve the LDAP password
[default: none]
--var=KEYVAL Defines a variable to be used within the Impala
session. Can be used multiple times to set different
variables. It must follow the pattern "KEY=VALUE", KEY
starts with an alphabetic character and contains
alphanumeric characters or underscores. [default:
none]
-Q QUERY_OPTIONS, --query_option=QUERY_OPTIONS
Sets the default for a query option. Can be used
multiple times to set different query options. It must
follow the pattern "KEY=VALUE", KEY must be a valid
query option. Valid query options can be listed by
command 'set'. [default: none]参数详细说明：
| 参数：Options |
注释 |
说明 |
| -h, --help |
show this help message and exit |
帮助文档 |
| -i IMPALAD, --impalad=IMPALAD |
host:port> of impalad to connect to [host: master:21000] |
指定impala连接的主机和端口 |
| -q QUERY, --query=QUERY |
Execute a query without the shell [default: none] |
指定查询语句 |
| -f QUERY_FILE, --query_file=QUERY_FILE |
Execute the queries in the query file, delimited by ;. If the argument to -f is "-", then queries are read from stdin and terminated with ctrl-d. [default: none] |
指定要执行的sql文件 |
| -k, --kerberos |
Connect to a kerberized impalad [default: False] |
通过kerberos认证进入impala |
| -o OUTPUT_FILE, --output_file=OUTPUT_FILE |
If set, query results are written to the given file. Results from multiple semicolon-terminated queries will be appended to the same file [default: none] |
指定输出文件 |
| -B, --delimited |
Output rows in delimited mode [default: False] |
以分隔模式输出行 |
| --print_header |
Print column names in delimited mode when pretty-printed. [default: False] |
打印行首 |
| --output_delimiter=OUTPUT_DELIMITER |
Field delimiter to use for output in delimited mode [default: \t] |
指定输出文件的分隔符 |
| -s KERBEROS_SERVICE_NAME, --kerberos_service_name=KERBEROS_SERVICE_NAME |
Service name of a kerberized impalad [default: impala] |
指定kerberos的服务名称，默认impala |
| -V, --verbose |
Verbose output [default: True] |
详细输出 |
| -p, --show_profiles |
Always display query profiles after execution [default: False] |
显示查询配置文件(不常用) |
| --quiet |
Disable verbose output [default: False] |
禁用详细输出 |
| -v, --version |
Print version information [default: False] |
打印impala版本 |
| -c, --ignore_query_failure |
Continue on query failure [default: False] |
查询失败时继续 |
| -r, --refresh_after_connect |
Refresh Impala catalog after connecting [default: False] |
连接后刷新 |
| -d DEFAULT_DB, --database=DEFAULT_DB |
Issues a use database command on startup [default: none] |
指定连接后的默认数据库 |
| -l, --ldap |
Use LDAP to authenticate with Impala. Impala must be configured to allow LDAP authentication. [default: False] |
启用LDAP身份验证 |
| -u USER, --user=USER |
User to authenticate with. [default: root] |
指定用户 |
| --ssl |
Connect to Impala via SSL-secured connection [default: False] |
通过SSL安全连接连接到Impala |
| --ca_cert=CA_CERT |
Full path to certificate file used to authenticate Impala's SSL certificate. May either be a copy of Impala's certificate (for self-signed certs) or the certificate of a trusted third-party CA. If not set, but SSL is enabled, the shell will NOT verify Impala's server certificate [default: none] |
验证Impala的SSL证书的证书文件的完整路径。 |
| --config_file=CONFIG_FILE |
Specify the configuration file to load options. The following sections are used: [impala], [impala.query_options]. Section names are case sensitive. Specifying this option within a config file will have no effect. Only specify this as an option in the commandline. [default: /home/xxxx/.impalarc] |
指定要加载选项的配置文件。 |
| --live_summary |
Print a query summary every 1s while the query is running. [default: False] |
打印查询信息 (仅用于交互模式) |
| --live_progress |
Print a query progress every 1s while the query is running. [default: False] |
打印查询进度 (仅用于交互模式) |
| --auth_creds_ok_in_clear |
If set, LDAP authentication may be used with an insecure connection to Impala. WARNING: Authentication credentials will therefore be sent unencrypted, and may be vulnerable to attack. [default: none] |
如果设置了LDAP身份验证，则可能会与到Impala的不安全连接一起使用。 |
| --ldap_password_cmd=LDAP_PASSWORD_CMD |
Shell command to run to retrieve the LDAP password [default: none] |
运行以检索LDAP密码的Shell命令 |
| --var=KEYVAL |
Defines a variable to be used within the Impala session. Can be used multiple times to set different variables. It must follow the pattern "KEY=VALUE", KEY starts with an alphabetic character and contains alphanumeric characters or underscores. [default: none] |
指定查询的变量，以key=value模式输入，可多次设置不同变量。 |
| -Q QUERY_OPTIONS, --query_option=QUERY_OPTIONS |
Sets the default for a query option. Can be used multiple times to set different query options. It must follow the pattern "KEY=VALUE", KEY must be a valid query option. Valid query options can be listed by command 'set'. [default: none] |
说明：
--live_summary：打印查询信息
--live_progress：打印查询进度
这两个参数只适用于交互模式下，即命令行模式下