From: Mathieu Desnoyers via lttng-dev <lttng-dev@lists.lttng.org> To: "zhenyu.ren" <zhenyu.ren@aliyun.com> Cc: lttng-dev <lttng-dev@lists.lttng.org> Subject: Re: 回复: 回复: some tracepoints not exist in metadata? Date: Wed, 1 Jul 2020 08:07:20 -0400 (EDT) [thread overview] Message-ID: <1653271969.18771.1593605240536.JavaMail.zimbra@efficios.com> (raw) In-Reply-To: <65af8a29-4fd7-454c-a060-8f06cb7bc931.zhenyu.ren@aliyun.com> [-- Attachment #1.1: Type: text/plain, Size: 2289 bytes --] Hi, Make sure you use single quotes in your shell around wildcards, else the shell will try to expand them to files in the current directory, e.g., you need to do: lttng enable-event -u 'system_event*' -c channel0 -s misc_data This could very well explain why sometimes your events don't get enabled: if the wildcard matches files in the current directory. Thanks, Mathieu ----- On Jun 30, 2020, at 11:56 PM, zhenyu.ren <zhenyu.ren@aliyun.com> wrote: > Ah, I have to say that I use the wildcard in tracepoint name when enable-event > to the channel, i.e. ./lttng enable-event -u system_event* -c channel0 -s > misc_data. Of course, there are the other tracepoints with wildcard succeed in > registring. >> ------------------------------------------------------------------ >> 发件人:zhenyu.ren via lttng-dev <lttng-dev@lists.lttng.org> >> 发送时间:2020年7月1日(星期三) 11:44 >> 收件人:lttng-dev <lttng-dev@lists.lttng.org>; mathieu.desnoyers >> <mathieu.desnoyers@efficios.com> >> 主 题:[lttng-dev] 回复: some tracepoints not exist in metadata? >> I'd like to add that both "lttng list -u" and "lttng list $session_name" can get >> those tracepoints' names... >> ------------------------------------------------------------------ >> 发件人:zhenyu.ren via lttng-dev <lttng-dev@lists.lttng.org> >> 发送时间:2020年7月1日(星期三) 11:05 >> 收件人:lttng-dev <lttng-dev@lists.lttng.org>; mathieu.desnoyers >> <mathieu.desnoyers@efficios.com> >> 主 题:[lttng-dev] some tracepoints not exist in metadata? >> Hi, >> I find sometimes there are some tracepoints not exist in metadata file(but they >> are in the list of lttng list -u) and the end result is they can NOT be logged. >> I can not always reproduce it. It bothered me for 2 days. >> The lttng version is 2.7, I know it is not the latest version but there are some >> reasons I can't update it. So, is this a known bug? If yes, It will be very >> appreciated if you can give me any advice about the bug info(I can cherry pick >> the correspond fix). Otherwise, maybe I have to give up my favoriate Lttng.... >> Thank you in advance! >> zhenyu.ren -- Mathieu Desnoyers EfficiOS Inc. http://www.efficios.com [-- Attachment #1.2: Type: text/html, Size: 5753 bytes --] [-- Attachment #2: Type: text/plain, Size: 156 bytes --] _______________________________________________ lttng-dev mailing list lttng-dev@lists.lttng.org https://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
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From: Mathieu Desnoyers via lttng-dev <lttng-dev@lists.lttng.org> To: "zhenyu.ren" <zhenyu.ren@aliyun.com> Cc: lttng-dev <lttng-dev@lists.lttng.org> Subject: Re: [lttng-dev] 回复: 回复: some tracepoints not exist in metadata? Date: Wed, 1 Jul 2020 08:07:20 -0400 (EDT) [thread overview] Message-ID: <1653271969.18771.1593605240536.JavaMail.zimbra@efficios.com> (raw) Message-ID: <20200701120720.k9LcyqShVlCOVNI_pMS3DkQLsdB5Qwt5dpp1kt-zcr0@z> (raw) In-Reply-To: <65af8a29-4fd7-454c-a060-8f06cb7bc931.zhenyu.ren@aliyun.com> [-- Attachment #1.1: Type: text/plain, Size: 2289 bytes --] Hi, Make sure you use single quotes in your shell around wildcards, else the shell will try to expand them to files in the current directory, e.g., you need to do: lttng enable-event -u 'system_event*' -c channel0 -s misc_data This could very well explain why sometimes your events don't get enabled: if the wildcard matches files in the current directory. Thanks, Mathieu ----- On Jun 30, 2020, at 11:56 PM, zhenyu.ren <zhenyu.ren@aliyun.com> wrote: > Ah, I have to say that I use the wildcard in tracepoint name when enable-event > to the channel, i.e. ./lttng enable-event -u system_event* -c channel0 -s > misc_data. Of course, there are the other tracepoints with wildcard succeed in > registring. >> ------------------------------------------------------------------ >> 发件人:zhenyu.ren via lttng-dev <lttng-dev@lists.lttng.org> >> 发送时间:2020年7月1日(星期三) 11:44 >> 收件人:lttng-dev <lttng-dev@lists.lttng.org>; mathieu.desnoyers >> <mathieu.desnoyers@efficios.com> >> 主 题:[lttng-dev] 回复: some tracepoints not exist in metadata? >> I'd like to add that both "lttng list -u" and "lttng list $session_name" can get >> those tracepoints' names... >> ------------------------------------------------------------------ >> 发件人:zhenyu.ren via lttng-dev <lttng-dev@lists.lttng.org> >> 发送时间:2020年7月1日(星期三) 11:05 >> 收件人:lttng-dev <lttng-dev@lists.lttng.org>; mathieu.desnoyers >> <mathieu.desnoyers@efficios.com> >> 主 题:[lttng-dev] some tracepoints not exist in metadata? >> Hi, >> I find sometimes there are some tracepoints not exist in metadata file(but they >> are in the list of lttng list -u) and the end result is they can NOT be logged. >> I can not always reproduce it. It bothered me for 2 days. >> The lttng version is 2.7, I know it is not the latest version but there are some >> reasons I can't update it. So, is this a known bug? If yes, It will be very >> appreciated if you can give me any advice about the bug info(I can cherry pick >> the correspond fix). Otherwise, maybe I have to give up my favoriate Lttng.... >> Thank you in advance! >> zhenyu.ren -- Mathieu Desnoyers EfficiOS Inc. http://www.efficios.com [-- Attachment #1.2: Type: text/html, Size: 5753 bytes --] [-- Attachment #2: Type: text/plain, Size: 156 bytes --] _______________________________________________ lttng-dev mailing list lttng-dev@lists.lttng.org https://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
next prev parent reply other threads:[~2020-07-01 12:07 UTC|newest] Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-07-01 2:48 some tracepoints not exist in metadata? zhenyu.ren via lttng-dev 2020-07-01 2:48 ` [lttng-dev] " zhenyu.ren via lttng-dev 2020-07-01 3:43 ` 回复: " zhenyu.ren via lttng-dev 2020-07-01 3:43 ` [lttng-dev] " zhenyu.ren via lttng-dev 2020-07-01 3:56 ` 回复: " zhenyu.ren via lttng-dev 2020-07-01 3:56 ` [lttng-dev] " zhenyu.ren via lttng-dev 2020-07-01 12:07 ` Mathieu Desnoyers via lttng-dev [this message] 2020-07-01 12:07 ` Mathieu Desnoyers via lttng-dev 2020-07-02 0:38 ` 回复:回复: " zhenyu.ren via lttng-dev 2020-07-02 0:38 ` [lttng-dev] " zhenyu.ren via lttng-dev 2020-07-02 12:45 ` Jonathan Rajotte-Julien via lttng-dev 2020-07-02 12:45 ` [lttng-dev] " Jonathan Rajotte-Julien via lttng-dev 2020-07-02 14:03 ` Mathieu Desnoyers via lttng-dev 2020-07-02 14:03 ` [lttng-dev] " Mathieu Desnoyers via lttng-dev
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