# hilog HiLog日志系统，提供给系统框架、服务、以及应用，用于打印日志，记录用户操作、系统运行状态等。开发者可以通过hilog命令行查询相关日志信息。 ## 环境要求 - 根据hdc命令行工具指导，完成[环境准备](hdc.md#环境准备)。 - 正常连接设备。 ## 命令行说明 | 短选项 | 长选项 | 参数 | 说明 | | -------- | -------- | -------- | -------- | | -h | --help | | 帮助命令。 | | 缺省 | 缺省 | | 阻塞读日志，不退出。 | | -x | --exit | | 非阻塞读日志，读完退出。 | | -g | | | 查询buffer的大小，配合-t指定某一类型使用，默认app和core。 | | -G | --buffer-size | <size> | 设置指定<type>日志类型缓冲区的大小，配合-t指定某一类型使用，默认app和core， 可使用B/K/M为单位，范围为64K-16M。 | | -r | | | 清除buffer日志，配合-t指定某一类型使用，默认app和core。 | | -p | --privacy | <on/off> | 支持系统调试时日志隐私开关控制。 | | | | on | 打开隐私开关，显示<private>。 | | | | off | 关闭隐私开关，显示明文。 | | -k | | <on/off> | Kernel日志读取开关控制。 | | | | on | 打开读取kernel日志。 | | | | off | 关闭读取kernel日志。 | | -s | --statistics | | 查询统计信息，需配合-t或-D使用。 | | -S | | | 清除统计信息，需配合-t或-D使用。 | | -Q | | <control-type> | 流控缺省配额开关控制。 | | | | pidon | 进程流控开关打开。 | | | | pidoff | 进程流控开关关闭。 | | | | domainon | domain流控开关打开。 | | | | domainoff | domain流控开关关闭。 | | -L | --level | <level> | 指定级别的日志，示例：-L D/I/W/E/F。 | | -t | --type | <type> | 指定类型的日志，示例：-t app/core/init/only_prerelease。app为应用日志，core为系统日志，init为启动日志，only_prerelease为仅在系统release版本前打印的日志，应用开发者无需关注。| | -D | --domain | <domain> | 指定domain。 | | -T | --tag | <tag> | 指定tag。 | | -a | --head | <n> | 只显示前<n>行日志。 | | -z | --tail | <n> | 只显示后<n>行日志。 | | -P | --pid | <pid> | 标识不同的pid。 | | -e | --regex | <expr> | 只打印日志消息与<expr>匹配的行，其中<expr>是一个正则表达式。 | | -f | --filename | <filename> | 设置落盘的文件名。 | | -l | --length | <length> | 设置落盘的文件大小，需要大于等于64K。 | | -n | --number | <number> | 设置落盘文件的个数。 | | -j | --jobid | <jobid> | 设置落盘任务的ID。 | | -w | --write | <control> | 落盘任务控制。 | | | | query | 落盘任务查询。 | | | | start | 落盘任务开始，命令行参数为文件名、单文件大小、落盘算法、rotate文件数目。 | | | | stop | 落盘任务停止。 | | | | refresh | 刷新缓冲区的日志到落盘文件。 | | | | clear | 删除已经落盘的日志文件。 | | -m | --stream | <algorithm> | 落盘方式控制。 | | | | none | 无压缩方式落盘。 | | | | zlib | zlib压缩算法落盘，落盘文件为.gz。 | | | | zstd | zstd压缩算法落盘，落盘文件为.zst。 | | -v | --format | <format> | | | | | time | 显示本地时间。 | | | | color | 显示不同级别显示不同颜色，参数缺省级别颜色模式处理（按黑白方式）。 | | | | epoch | 显示相对1970时间。 | | | | monotonic | 显示相对启动时间。 | | | | usec | 显示微秒精度时间。 | | | | nsec | 显示纳秒精度时间。 | | | | year | 显示将年份添加到显示的时间。 | | | | zone | 显示将本地时区添加到显示的时间。 | | | | wrap | 日志换行显示时，新行不增加时间戳等前缀。 | | -b | --baselevel | <loglevel> | 设置可打印日志的最低等级：D(DEBUG)/I(INFO)/W(WARN)/E(ERROR)/F(FATAL)。 | ## 常用命令 ### 查看帮助命令 ``` hilog -h ``` **使用样例：** ``` $ hilog -h Usage: -h --help Show all help information. Show single help information with option: query/clear/buffer/stats/persist/private/kmsg/flowcontrol/baselevel/domain/combo Querying logs options: No option performs a blocking read and keeps printing. -x --exit Performs a non-blocking read and exits when all logs in buffer are printed. -a , --head= Show n lines logs on head of buffer. -z , --tail= Show n lines logs on tail of buffer. ``` ### 非阻塞读日志 ``` hilog -x ``` **使用样例：** ``` $ hilog -x 11-15 15:51:02.087 2823 2823 I A01B05/com.ohos.sceneboard/AOD: AodClockFullScreen --> timeTextLineHeight:313.3333333333333 clockMarginTop:99 11-15 15:51:02.087 2823 2823 I A01B05/com.ohos.sceneboard/AOD: AodClockFullScreen --> timeFontSize:114.48717948717947 11-15 15:51:02.090 2823 2823 I A01B05/com.ohos.sceneboard/AOD: AodClockFullScreen --> timeTextWidth:202,timeTextHeight:292 11-15 15:51:02.100 2823 2823 I A01B05/com.ohos.sceneboard/AOD: ComponentUtil --> Component(ComponentId-AodClockNumber) draw complete. 11-15 15:51:02.110 1197 1197 E C01406/render_service/OHOS::RS: [LoadImgsbyResolution] Can't find resolution (1084 x 2412) in config file 11-15 15:51:02.127 1197 1197 E C01406/render_service/OHOS::RS: [LoadImgsbyResolution] Can't find resolution (1084 x 2412) in config file ``` ### 查看日志缓冲区大小 ``` hilog -g ``` **使用样例：** ``` $ hilog -g Log type app buffer size is 16.0M Log type init buffer size is 16.0M Log type core buffer size is 16.0M Log type only_prerelease buffer size is 16.0M ``` ### 修改日志缓冲区大小 ``` hilog -G size ``` **使用样例：** ``` $ hilog -G 16M Set log type app buffer size to 16.0M successfully Set log type init buffer size to 16.0M successfully Set log type core buffer size to 16.0M successfully Set log type only_prerelease buffer size to 16.0M successfully ``` ### 清除缓冲区日志 ``` hilog -r ``` **使用样例：** ``` $ hilog -r Log type core,app,only_prerelease buffer clear successfully ``` ### 内核日志读取开关控制 ``` hilog -k on/off ``` **使用样例：** ``` $ hilog -k on Set hilogd storing kmsg log on successfully $ $ hilog -k off Set hilogd storing kmsg log off successfully ``` ### 查询统计信息 ``` hilog -s ``` **使用样例：** ``` $ param set persist.sys.hilog.stats true Set parameter persist.sys.hilog.stats true success $ reboot $ hilog -s Log statistic report (Duration: 0h0m32s.564, From: 11-15 16:04:08.628): Total lines: 137517, length: 8.0M DEBUG lines: 0(0%), length: 0.0B(0%) INFO lines: 101795(74%), length: 6.1M(76%) WARN lines: 10268(7.5%), length: 719.9K(8.8%) ERROR lines: 25452(19%), length: 1.2M(15%) FATAL lines: 2(0.0015%), length: 259.0B(0.0031%) ------------------------------------------------------------ Domain Table: LOGTYPE- DOMAIN---- TAG----------------------------- MAX_FREQ-- TIME---------------- MAX_TP---- TIME---------------- LINES----- LENGTH---- DROPPED--- app----- 0xf00----- -------------------------------- 924.00---- 11-15 16:04:25.594-- 111975.00- 11-15 16:04:25.594-- 3386------ 371.5K---- 0--------- app----- 0x0------- -------------------------------- 285.00---- 11-15 16:04:34.877-- 44242.00-- 11-15 16:04:34.877-- 990------- 129.2K---- 0--------- ``` **统计信息说明** ``` MAX_FREQ：日志打印频率最高的每秒行数 TIME： 对应发生时间 MAX_TP： 日志打印频率最高的每秒字节数 LINES： 统计周期内的总行数 LENGTH： 统计周期内的总字节数 DROPPED： 统计周期内丢失的行数 ``` ### 清除统计信息 ``` hilog -S ``` **使用样例：** ``` $ hilog -S Statistic info clear successfully ``` ### 进程流控开关 ``` hilog -Q pidon/pidoff ``` **使用样例：** ``` $ hilog -Q pidon Set flow control by process to enabled successfully $ $ hilog -Q pidoff Set flow control by process to disabled successfully ``` ### domain流控开关 ``` hilog -Q domainon/domainoff ``` **使用样例：** ``` $ hilog -Q domainon Set flow control by domain to enabled successfully $ $ hilog -Q domainoff Set flow control by domain to disabled successfully ``` ### 查看指定级别日志 ``` hilog -L D/I/W/E/F ``` **使用样例：** ``` $ hilog -L E 08-28 09:01:25.730 2678 2678 E A00F00/com.huawei.hmos.aidataservice/AiDataService_5.10.7.320: DataChangeNotifyManager: notifyDataChange CommonEntity no valid entity to notify 08-28 09:01:56.058 8560 8560 E A00500/com.ohos.settingsdata/SettingsData: DB not ready request = datashare:///com.ohos.settingsdata/entry/settingsdata/SETTINGSDATA?Proxy=true&key=analysis_service_switch_on , retry after DB startup 08-28 09:01:56.082 8560 8560 E A00500/com.ohos.settingsdata/SettingsData: decoder failure: /data/migrate/settings_global.xml , error code:-1 08-28 09:01:56.082 8560 8560 E A00500/com.ohos.settingsdata/SettingsData: clearXml failed:No such file or directory, error code:13900002 08-28 09:01:56.083 8560 8560 E A00500/com.ohos.settingsdata/SettingsData: readText failed:No such file or directory, error code:13900002 08-28 09:01:56.371 8586 8586 E A00500/com.ohos.settingsdata/SettingsData: DB not ready request = datashare:///com.ohos.settingsdata/entry/settingsdata/SETTINGSDATA?Proxy=true&key=photo_network_connection_status , retry after DB startup 08-28 09:01:56.408 8586 8586 E A00500/com.ohos.settingsdata/SettingsData: decoder failure: /data/migrate/settings_global.xml , error code:-1 ``` ### 查看指定类型日志 ``` hilog -t app ``` **使用样例：** ``` $ hilog -t app 11-15 16:04:45.903 5630 5630 I A0A5A5/os.hiviewcare:staticSubscriber/Diagnosis: [DetectionFilter]820001084: switch off 11-15 16:04:45.905 5630 5630 I A0A5A5/os.hiviewcare:staticSubscriber/Diagnosis: [DetectionFilter]847005050: frequency limit 11-15 16:04:45.905 5630 5630 I A0A5A5/os.hiviewcare:staticSubscriber/Diagnosis: [SmartNotifyHandler]detections after filter: [] 11-15 16:04:45.905 5630 5630 I A0A5A5/os.hiviewcare:staticSubscriber/Diagnosis: [SmartNotifyHandler]no detections to detect 11-15 16:04:45.924 5687 5687 I A01B06/common/KG: MetaBalls-SystemTopPanelController --> init charging status = 3 ``` ### 查看指定domain日志 ``` hilog -D 01B06 ``` **使用样例：** ``` $ hilog -D 01B06 11-15 16:04:54.981 5687 5687 I A01B06/common/KG: MetaBalls-MetaBallRenderer --> pressTime = 0 appearTime = 1731657885972 11-15 16:04:54.981 5687 5687 I A01B06/common/KG: MetaBalls-MetaBallRenderer --> backAnimator on finish 11-15 16:04:54.982 5687 5687 I A01B06/common/KG: MetaBalls-MetaBallRenderer --> setTimeout over 9s and begin animate on finish 11-15 16:04:55.297 5687 5687 I A01B06/common/KG: MetaBalls-MetaBallRenderer --> chargingTextExitAnimation onFinish 11-15 16:04:55.494 5687 5687 I A01B06/common/KG: MetaBalls-MetaBallRenderer --> uiExtension session send data success,type: exitAnimationFinish ``` ### 查看指定TAG日志 ``` hilog -T tag ``` **使用样例：** ``` $ hilog -T SAMGR 08-28 09:27:59.581 610 11504 I C01800/samgr/SAMGR: CommonEventCollect save extraData 1661 08-28 09:27:59.581 610 11504 I C01800/samgr/SAMGR: OnReceiveEvent get action: usual.event.BATTERY_CHANGED code: 0, extraDataId 1661 08-28 09:27:59.582 610 11504 I C01800/samgr/SAMGR: DoEvent:4 name:usual.event.BATTERY_CHANGED value:0 08-28 09:27:59.582 610 11504 W C01800/samgr/SAMGR: LoadSa SA:10120 AddDeath fail,cnt:1,callpid:610 08-28 09:27:59.583 610 11504 I C01800/samgr/SAMGR: LoadSa SA:10120 size:1,count:1 08-28 09:27:59.601 610 11504 I C01800/samgr/SAMGR: Scheduler SA:10120 loading 08-28 09:27:59.965 11518 11518 I C01800/media_analysis_service/SAMGR: SA:10120 OpenSo spend 315ms 08-28 09:27:59.965 610 4064 I C01800/samgr/SAMGR: AddProc:media_analysis_service. size:75 ``` ### 查看缓冲区前n行日志 ``` hilog -a 8 ``` **使用样例：** ``` $ hilog -a 8 11-15 16:04:08.628 0 0 I I00000/HiLog: ========Zeroth log of type: init 11-15 16:04:08.603 506 506 I I02C01/hmos_cust_carrier_mount/CustCarrierMount: MountCarrierToShared start 11-15 16:04:08.604 506 506 I I02C01/hmos_cust_carrier_mount/CustCarrierMount: success to mount carrier to shared 11-15 16:04:15.394 972 972 I I02C01/hmos_cust_carrier_mount/CustCarrierMount: UpdateCotaOpkeyLink start 11-15 16:04:15.396 972 972 W I02C01/hmos_cust_carrier_mount/CustCarrierMount: not exsit CUST_GLOBAL_CARRIER_DIR or COTA_PARAM_CARRIER_DIR 11-15 16:04:15.887 972 972 I I02C01/hmos_cust_carrier_mount/CustCarrierMount: success to update cota carrier 11-15 16:04:48.749 5777 5901 I A00001/com.huawei.hmsapp.hiai.core/HiAI_Metadata: metadata is null 11-15 16:04:48.749 5777 5901 I A00001/com.huawei.hmsapp.hiai.core/HiAI_PluginAbilityInfo: abilityInfo is null ``` ### 查看缓冲区后n行日志 ``` hilog -z 8 ``` **使用样例：** ``` $ hilog -z 8 11-15 16:12:19.015 1899 7867 W C01719/wifi_manager_service/ffrt: 423:FFRTQosApplyForOther:244 tid 7867, Operation not permitted, ret:-1, eno:1 11-15 16:12:19.125 1043 1072 I C01C42/time_service/TimeService: uid: 1010 id:428551571 name:wifi_manager_service wk:0 11-15 16:12:19.125 1043 1072 I C01C42/time_service/TimeService: bat: -1 id:428551571 we:505225000000 mwe:512725000000 11-15 16:12:19.125 1043 1072 I C01C42/time_service/TimeService: typ:3 trig: 505 225000000, bt: 495230369193 11-15 16:12:19.125 1043 1072 I C01C42/time_service/TimeService: cb: 428551571 ret: 0 11-15 16:12:19.435 3086 7813 I C01719/com.ohos.contactsdataability/ffrt: 45:~WorkerThread:72 to exit, qos[3] 11-15 16:12:19.691 800 1404 I C01713/resource_schedule_service/SUSPEND_MANAGER: [(HasSpecialStateFromBgtask):759] 20020107_com.ohos.medialibrary.medialibrarydata 11-15 16:12:19.691 800 1404 I C01713/resource_schedule_service/SUSPEND_MANAGER: [(DozeFreezeUnit):890] Doze has special:ERR_HAS_PID_EFFICIENCY_RESOURCE ``` ### 查看指定进程日志 ``` hilog -P pid ``` **使用样例：** ``` $ hilog -P 618 08-28 10:19:16.872 618 17729 I C02D15/hiview/XPower: [task_52]#current system load is: 0.028767 08-28 10:19:23.997 618 17580 I C02D10/hiview/CpuCollector: CalculateProcessCpuStatInfos: startTime=1724811553746, endTime=1724811563996, startBootTime=47001084, endBootTime=47011335, period=10251 08-28 10:19:23.999 618 17580 I C02D10/hiview/CpuCollector: CollectProcessCpuStatInfos: collect process cpu statistics information size=234, isNeedUpdate=1 08-28 10:19:24.002 618 17580 W C01650/hiview/Rdb: DB : 08-28 10:19:24.002 618 17580 W C01650/hiview/Rdb: device: 12583051 inode: 40230 mode: 432 size: 569344 natime: Wed Aug 28 00:00:06 2024 08-28 10:19:24.002 618 17580 W C01650/hiview/Rdb: smtime: Wed Aug 28 00:34:30 2024 08-28 10:19:24.002 618 17580 W C01650/hiview/Rdb: sctime: Wed Aug 28 00:34:30 2024 ``` ### 查看符合正则匹配关键字的日志 ``` hilog -e start ``` **使用样例：** ``` $ hilog -e start 11-15 16:17:17.578 547 4504 I C01800/samgr/SAMGR: AddProc start proc:media_analysis_service spend 223ms 11-15 16:17:17.578 547 4504 I C01800/samgr/SAMGR: Scheduler proc:media_analysis_service handle started event 11-15 16:17:17.578 547 4504 I C01800/samgr/SAMGR: Scheduler proc:media_analysis_service started 11-15 16:17:17.580 8877 8877 I C01810/media_analysis_service/SAFWK: start tasks proc:media_analysis_service end,spend 1ms 11-15 16:17:17.582 8877 8877 I C01651/media_analysis_service/DataShare: [operator()()-data_share_manager_impl.cpp:134]: RecoverObs start 11-15 16:17:17.589 8877 8893 I C01651/media_analysis_service/DataShare: [Connect()-ams_mgr_proxy.cpp:67]: connect start, uri = ******/media 11-15 16:17:18.225 1155 1633 I C02943/power_host/ThermalHdi: CreateLogFile start 11-15 16:17:18.264 1155 1633 I C02943/power_host/ThermalHdi: CompressFile start ``` ### 查看、设置落盘任务 ``` hilog -w control ``` > **说明：** > > 查询当前任务： hilog -w query > > 开启hilog落盘任务，并且设置落盘文件数量为1000个： hilog -w start -n 1000 > > 开启kmsglog落盘任务，并且设置落盘文件数量为100个： hilog -w start -n 100 -t kmsg > > 停止当前落盘任务： hilog -w stop > > 开启kmsglog落盘任务，并且设置落盘规则，其中压缩方式可以为zlib，zstd，none。以设置规则为例：文件名为kmsglog，大小为2M，数量为100个, 其压缩方式为zlib压缩，命令行为： hilog -w start -t kmsg -f kmsglog -l 2M -n 100 -m zlib **使用样例：** ``` $ hilog -w query Persist task query failed No running persistent task [CODE: -63] $ $ hilog -w start -n 1000 Persist task [jobid:1][fileNum:1000][fileSize:4194304] start successfully $ $ hilog -w start -n 100 -t kmsg Persist task [jobid:2][fileNum:100][fileSize:4194304] start successfully $ $ hilog -w stop Persist task [jobid:1] stop successfully Persist task [jobid:2] stop successfully $ $ hilog -w start -t kmsg -f kmsglog -l 2M -n 100 -m zlib Persist task [jobid:2][fileNum:100][fileSize:2097152] start successfully ``` ### 设置日志显示格式 ``` hilog -v time/color/epoch/monotonic/usec/nsec/year/zone/wrap ``` **使用样例：** ``` $ hilog -v time 11-15 16:36:21.027 1134 1723 I C02B01/riladapter_host/HrilExt: [NotifyToBoosterTel-(hril_manager_ext.cpp:440)] RilExt:Notify to booster tel finish 11-15 16:36:21.027 1134 1723 I C02B01/riladapter_host/HrilExt: [NotifyToBoosterNet-(hril_manager_ext.cpp:450)] RilExt: HNOTI_BOOSTER_NET_IND report to booster net 11-15 16:36:21.027 1134 1723 I C02B01/riladapter_host/HrilExt: [NotifyToBoosterNet-(hril_manager_ext.cpp:454)] RilExt: HNOTI_BOOSTER_NET_IND report to booster net finish 11-15 16:36:21.027 1134 1723 I P01FFF/riladapter_host/Rilvendor: CHAN [HandleUnsolicited] HandleUnsolicited done for modem:0, index:0, atResponse:^BOOSTERNTF: 3, 20,"0600100001000004000000000102A4FF0202F6FF" 11-15 16:36:21.802 2809 2831 E C02D06/com.ohos.sceneboard/XCollie: Send kick,foundation to hungtask Successful 11-15 16:36:21.911 882 3016 I C01F0B/telephony/TelephonyVSim: state machine ProcessEvent Id: 125 11-15 16:36:21.911 882 3016 I C01F0B/telephony/TelephonyVSim: StateProcess $ $ hilog -v nsec 11-15 16:37:09.010658555 1134 1723 I C02B01/riladapter_host/HrilExt: [BoosterRawInd-(hril_booster.cpp:296)] RilExt: BoosterRawInd 11-15 16:37:09.010676263 1134 1723 I C02B01/riladapter_host/HrilExt: [BoosterRawInd-(hril_booster.cpp:328)] check need notify to satellite:indType 6 11-15 16:37:09.010800221 1134 1723 I C02B01/riladapter_host/HrilExt: [NotifyToBoosterTel-(hril_manager_ext.cpp:436)] RilExt: report to telephony ext, requestNum: 4201 11-15 16:37:09.011011680 1134 1723 I C02B01/riladapter_host/HrilExt: [NotifyToBoosterTel-(hril_manager_ext.cpp:440)] RilExt:Notify to booster tel finish 11-15 16:37:09.011064805 1134 1723 I C02B01/riladapter_host/HrilExt: [NotifyToBoosterNet-(hril_manager_ext.cpp:450)] RilExt: HNOTI_BOOSTER_NET_IND report to booster net 11-15 16:37:09.011200742 1134 1723 I C02B01/riladapter_host/HrilExt: [NotifyToBoosterNet-(hril_manager_ext.cpp:454)] RilExt: HNOTI_BOOSTER_NET_IND report to booster net finish ``` ### 设置可打印日志的最低等级 ``` hilog -b D/I/W/E/F ``` **使用样例：** ``` $ hilog -b E Set global log level to E successfully ``` ### 隐私开关 ``` hilog -p on/off ``` **使用样例：** ``` # hilog -p on Set hilog privacy format on successfully # # hilog -p off Set hilog privacy format off successfully ```