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compatible with cxxopt. #171

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compatible with cxxopt. #171

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xiaoxichen
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in https://github.com/jarro2783/cxxopts/blob/v3.2.1/include/cxxopts.hpp#L1011-L1018

it checks the (!in), if we read after reaching EOF, the !in will be true which results a incorrect_argument_type exception thrown.

we should be very careful to avoid read after reaching eof.

in https://github.com/jarro2783/cxxopts/blob/v3.2.1/include/cxxopts.hpp#L1011-L1018

it checks the (!in),  if we read after reaching EOF,  the !in will be true
which results a incorrect_argument_type exception thrown.

we should be very careful to avoid read after reaching eof.

Signed-off-by: Xiaoxi Chen <xiaoxchen@ebay.com>
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we are expecting
/dev/sdb:NVME can be parsed as /dev/sdb as path , NVME as type.
also expecting
dev/sdc can be parsed as/dev/sdc as path, AUTO_DETECT as type.

However the later one doesnt work prior to this change , as we attempt to read post EOF for the type.

Now SM has to pass AUTO_DETECT explicitly, c.f https://github.corp.ebay.com/SDS/storage_mgr/pull/106/files#diff-77713e57d4672c7f5d23883b612967d7984474a2cc0222ac802717228501b50fR161

With this PR merged, SM do not need pass-in the AUTO_DETECT

HS report no availbe chunk after creating 44K chunks.
which is under investigation.

Signed-off-by: Xiaoxi Chen <xiaoxchen@ebay.com>
@@ -170,7 +170,7 @@ void HSHomeObject::init_homestore() {
{HS_SERVICE::REPLICATION,
hs_format_params{.dev_type = HSDevType::Data,
.size_pct = 99.0,
.num_chunks = 60000,
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what is the intention here? why 32768?
can we specify the chunk_size and let homestore itself determine how many chunks will be created according to the disk space?

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https://github.com/eBay/HomeObject/pull/167/files#r1571091449
pls refer this discussion why specified chunk_size is less prefered.

Regarding the intent of move down to 32K , it is to work around the bug we are discussing in HS channel
https://ebay-eng.slack.com/archives/CAVQXEAKS/p1713889924523089

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